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Groups > linux.debian.user > #184367 > unrolled thread
| Started by | Rodolfo Medina <rodolfo.medina@gmail.com> |
|---|---|
| First post | 2017-07-28 21:20 +0200 |
| Last post | 2017-07-31 09:40 +0200 |
| Articles | 20 on this page of 93 — 18 participants |
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Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-07-28 21:20 +0200
Re: Live recording deloptes <deloptes@gmail.com> - 2017-07-28 22:40 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-03 14:30 +0200
Re: Live recording Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2017-08-03 14:40 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-03 15:20 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-03 15:50 +0200
Re: Live recording David Wright <deblis@lionunicorn.co.uk> - 2017-08-03 17:10 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-03 17:50 +0200
Re: Live recording Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2017-08-03 19:10 +0200
RE: Live recording "larry owens" <larrydowens6@att.net> - 2017-08-03 19:40 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-03 20:30 +0200
Re: Live recording David Christensen <dpchrist@holgerdanske.com> - 2017-08-04 03:10 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-04 09:20 +0200
Re: Live recording David Christensen <dpchrist@holgerdanske.com> - 2017-08-05 23:50 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-06 18:40 +0200
Re: Live recording David Christensen <dpchrist@holgerdanske.com> - 2017-08-04 03:40 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-04 09:10 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-03 20:20 +0200
Re: Live recording Doug <dmcgarrett@optonline.net> - 2017-08-03 21:30 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-03 21:50 +0200
Re: Live recording deloptes <deloptes@gmail.com> - 2017-08-04 01:30 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-04 10:00 +0200
Re: Live recording Curt <curty@free.fr> - 2017-08-04 15:30 +0200
Re: Live recording deloptes <deloptes@gmail.com> - 2017-08-04 19:50 +0200
Re: Live recording Glenn English <ghe2001@gmail.com> - 2017-08-05 03:20 +0200
Re: Live recording Curt <curty@free.fr> - 2017-08-05 11:50 +0200
Re: Live recording Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2017-08-05 13:20 +0200
Re: Live recording Glenn English <ghe2001@gmail.com> - 2017-08-06 04:20 +0200
Re: Live recording Curt <curty@free.fr> - 2017-08-06 11:00 +0200
Re: Live recording Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2017-08-04 11:10 +0200
[solved] Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-04 18:00 +0200
Re: [solved] Re: Live recording Richard Hector <richard@walnut.gen.nz> - 2017-08-06 01:50 +0200
Re: [solved] Re: Live recording Eike Lantzsch <zp6cge@gmx.net> - 2017-08-06 03:20 +0200
Re: [solved] Re: Live recording Doug <dmcgarrett@optonline.net> - 2017-08-06 04:40 +0200
Re: [solved] Re: Live recording Eike Lantzsch <zp6cge@gmx.net> - 2017-08-06 03:20 +0200
Re: [solved] Re: Live recording Richard Hector <richard@walnut.gen.nz> - 2017-08-06 05:40 +0200
Re: [solved] Re: Live recording Joe <joe@jretrading.com> - 2017-08-06 10:20 +0200
Re: [solved] Re: Live recording Eike Lantzsch <zp6cge@gmx.net> - 2017-08-06 03:30 +0200
Re: [solved] Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-06 18:20 +0200
Re: Live recording David Wright <deblis@lionunicorn.co.uk> - 2017-08-06 19:10 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-06 20:30 +0200
Re: Live recording David Wright <deblis@lionunicorn.co.uk> - 2017-08-06 21:00 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-06 22:20 +0200
Re: Live recording Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2017-08-07 18:10 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-07 20:00 +0200
Re: Live recording David Wright <deblis@lionunicorn.co.uk> - 2017-08-07 23:40 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-08 00:50 +0200
Re: Live recording Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2017-08-08 13:30 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-08 14:50 +0200
Re: [solved] Re: Live recording David Christensen <dpchrist@holgerdanske.com> - 2017-08-06 23:10 +0200
Re: [solved] Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-07 08:00 +0200
Re: [solved] Re: Live recording Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2017-08-07 18:10 +0200
Re: [solved] Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-07 23:30 +0200
Re: [solved] Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-14 23:10 +0200
Re: [solved] Re: Live recording deloptes <deloptes@gmail.com> - 2017-08-15 01:50 +0200
Re: [solved] Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-15 09:30 +0200
Re: [solved] Re: Live recording deloptes <deloptes@gmail.com> - 2017-08-15 13:10 +0200
Re: [solved] Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-16 03:10 +0200
Re: [solved] Re: Live recording Zenaan Harkness <zenaan@freedbms.net> - 2017-08-16 05:00 +0200
Re: [solved] Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-16 13:50 +0200
Re: [solved] Re: Live recording Zenaan Harkness <zenaan@freedbms.net> - 2017-08-16 15:50 +0200
Re: [solved] Re: Live recording Ric Moore <wayward4now@gmail.com> - 2017-08-16 17:20 +0200
Re: [solved] Re: Live recording Zenaan Harkness <zenaan@freedbms.net> - 2017-08-16 17:30 +0200
Re: [solved] Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-17 02:40 +0200
Re: [solved] Re: Live recording Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2017-08-17 09:30 +0200
Re: [solved] Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-17 10:00 +0200
Re: [solved] Re: Live recording Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2017-08-17 11:40 +0200
Re: [solved] Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-18 10:50 +0200
Re: Live recording Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2017-07-28 22:50 +0200
Re: Live recording David Christensen <dpchrist@holgerdanske.com> - 2017-07-29 08:00 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-07-29 08:20 +0200
Re: Live recording deloptes <deloptes@gmail.com> - 2017-07-29 09:10 +0200
Re: Live recording David Christensen <dpchrist@holgerdanske.com> - 2017-07-29 09:20 +0200
Re: Live recording Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2017-07-29 10:30 +0200
Re: Live recording Weaver <weaver@riseup.net> - 2017-07-29 11:00 +0200
Re: Live recording Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2017-07-29 11:10 +0200
Re: Live recording Doug <dmcgarrett@optonline.net> - 2017-07-29 23:20 +0200
Re: Live recording Dan Ritter <dsr@randomstring.org> - 2017-07-31 17:20 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-01 23:10 +0200
Re: Live recording deloptes <deloptes@gmail.com> - 2017-08-02 00:50 +0200
Re: Live recording Fungi4All <fungilife@protonmail.com> - 2017-08-02 01:20 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-05 09:40 +0200
Re: Live recording deloptes <deloptes@gmail.com> - 2017-08-05 19:20 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-07 09:20 +0200
Re: Live recording David Christensen <dpchrist@holgerdanske.com> - 2017-08-08 01:20 +0200
Re: Live recording David Christensen <dpchrist@holgerdanske.com> - 2017-08-08 01:30 +0200
Re: Live recording Nicolas George <george@nsup.org> - 2017-08-05 19:30 +0200
Re: Live recording David Christensen <dpchrist@holgerdanske.com> - 2017-08-02 08:20 +0200
Re: Live recording Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2017-08-02 08:50 +0200
Re: Live recording Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-08-02 09:10 +0200
Re: Live recording Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2017-08-02 09:20 +0200
Re: Live recording David Christensen <dpchrist@holgerdanske.com> - 2017-08-03 04:00 +0200
Re: Live recording Zenaan Harkness <zenaan@freedbms.net> - 2017-07-31 09:40 +0200
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| From | Rodolfo Medina <rodolfo.medina@gmail.com> |
|---|---|
| Date | 2017-07-28 21:20 +0200 |
| Subject | Live recording |
| Message-ID | <u8iXM-7RN-3@gated-at.bofh.it> |
Hi all. According to: http://www.upubuntu.com/2013/05/how-to-record-your-voice-from.html I record live sound via microphone just doing: $ sox -t alsa default output.wav Now I was wondering about the stereo o non-stereo character of such a home made recording... I tried to use two microphones together, plugging them together into the PC with a small common connection doubber. Can we say the result is stereo...? I would doubt... and how to have - if possible - a stereo effect with the above basic recording instruments? Thanks for any reply, Rodolfo
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| From | deloptes <deloptes@gmail.com> |
|---|---|
| Date | 2017-07-28 22:40 +0200 |
| Message-ID | <u8kdb-ab-5@gated-at.bofh.it> |
| In reply to | #184367 |
Rodolfo Medina wrote: > Now I was wondering about the stereo o non-stereo character of such a home > made recording... I tried to use two microphones together, plugging them > together into the PC with a small common connection doubber. Can we say > the result is stereo...? I would doubt... and how to have - if possible > - a stereo effect with the above basic recording instruments? > > Thanks for any reply, > > Rodolfo Hahaha, Rodolfo you made my day. It was anyway a hard week, so good that I read your post :) The mic is mono, so the input if I am not wrong is mono as well. Check of course the specs of your board. On my one (pretty standard) it says: Interfaces Audio: line-in 1 Audio: line-out 1 Front audio: microphone 1 Front audio: headphone 1 in linux language $ amixer Simple mixer control 'Master',0 Capabilities: pvolume pswitch pswitch-joined Playback channels: Front Left - Front Right Limits: Playback 0 - 65536 Mono: Front Left: Playback 11477 [18%] [on] Front Right: Playback 11477 [18%] [on] Simple mixer control 'Capture',0 Capabilities: cvolume cswitch cswitch-joined Capture channels: Front Left - Front Right Limits: Capture 0 - 65536 Front Left: Capture 7353 [11%] [on] Front Right: Capture 7353 [11%] [on] $ ls -1 /dev/snd/ by-id by-path controlC0 controlC1 hwC0D2 pcmC0D0c pcmC0D0p pcmC0D2c pcmC1D0c seq timer pcm____c is capture device (p is playback) The mic has also different Ohms or perhaps better to say impedance, so I am not sure if it would work, but you could try plugging those mics to the line in, not the mic. So line in, is the stereo one. I think if you plugin mic(s) without preamp, because of the high Ohms, it would be very silent, but still worth a try. You need a stereo jack to L-R like this one https://www.thomann.de/at/pro_snake_78219_yadapterkabel.htm This way you'll also know if it is true stereo, because if you unplug the one mic, it would record only on the other channel. Of course you can see this in audacity or even with arecord However I am not sure what would be the purpose of all this, but you know perhaps better regards
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| From | Rodolfo Medina <rodolfo.medina@gmail.com> |
|---|---|
| Date | 2017-08-03 14:30 +0200 |
| Message-ID | <uanqj-8kg-55@gated-at.bofh.it> |
| In reply to | #184369 |
deloptes <deloptes@gmail.com> writes: > Rodolfo Medina wrote: > >> Now I was wondering about the stereo o non-stereo character of such a home >> made recording... I tried to use two microphones together, plugging them >> together into the PC with a small common connection doubber. Can we say >> the result is stereo...? I would doubt... and how to have - if possible >> - a stereo effect with the above basic recording instruments? > > [...] > > The mic is mono, so the input if I am not wrong is mono as well. > > [...] > > The mic has also different Ohms or perhaps better to say impedance, so I am > not sure if it would work, but you could try plugging those mics to the > line in, not the mic. > > So line in, is the stereo one. I think if you plugin mic(s) without preamp, > because of the high Ohms, it would be very silent, but still worth a try. > > You need a stereo jack to L-R like this one > https://www.thomann.de/at/pro_snake_78219_yadapterkabel.htm > > This way you'll also know if it is true stereo, because if you unplug the > one mic, it would record only on the other channel. Of course you can see > this in audacity or even with arecord With my two microphones, say mic1 and mic2, I did a little experiment: I recorded my voice with mic1, using sox, then listened to the so created .wav file and the sound was heard only on the left channel. Instead, doing the same with mic2, the sound was heard on both channels. How should we conclude? It seems to me that we should conclude that: 1) the mic input on my PC is stereo. In fact, it is a laptop, nay a netbook, doesn't have a line in and it is reasonable that its mic input is also a line in; 2) mic1 is mono; 3) mic2 is stereo. Do you agree? But then, if it is so, my rough home made live piano record, done using mic1 and mic2 plugged together in a one-male--two-female splitter, *is* actually stereo...? Thanks, Rodolfo
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| From | Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> |
|---|---|
| Date | 2017-08-03 14:40 +0200 |
| Message-ID | <uanzZ-8o6-35@gated-at.bofh.it> |
| In reply to | #184564 |
On Thu, 3 Aug 2017, at 13:23, Rodolfo Medina wrote: > 3) mic2 is stereo. Not necessarily. It might be a mono signal that's been duplicated across two outputs. It's only 2-channel if it can record two separate sounds at the same time. You can get microphones which, in a single unit, record more than one channel at once. Their labelling or artwork on them normally makes it clear that they have L and R (or more than that) inputs. What makes and models are your mics? -- Jeremy Nicoll - my opinions are my own.
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| From | Rodolfo Medina <rodolfo.medina@gmail.com> |
|---|---|
| Date | 2017-08-03 15:20 +0200 |
| Message-ID | <uaocG-rc-23@gated-at.bofh.it> |
| In reply to | #184566 |
Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> writes: > On Thu, 3 Aug 2017, at 13:23, Rodolfo Medina wrote: > >> 3) mic2 is stereo. > > Not necessarily. It might be a mono signal that's been duplicated across two > outputs. It's only 2-channel if it can record two separate sounds at the > same time. > > You can get microphones which, in a single unit, record more than one > channel at once. Their labelling or artwork on them normally makes it > clear that they have L and R (or more than that) inputs. > > What makes and models are your mics? I can't tell, because they're old and I don't keep their specs. One of them was given to me about 15 years ago, the other I don't even remember how I have it. But I've got another teo: they are, each of them, part of a headphone. They also let hear the recorded sound from both channels. They are: http://www.trust.com/it/product/11916-primo-chat-headset and http://www.trust.com/it/product/20685-mauro-headset Rodolfo
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| From | Rodolfo Medina <rodolfo.medina@gmail.com> |
|---|---|
| Date | 2017-08-03 15:50 +0200 |
| Message-ID | <uaoFI-Fn-21@gated-at.bofh.it> |
| In reply to | #184569 |
Rodolfo Medina <rodolfo.medina@gmail.com> writes: > Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> writes: > >> On Thu, 3 Aug 2017, at 13:23, Rodolfo Medina wrote: >> >>> 3) mic2 is stereo. >> >> Not necessarily. It might be a mono signal that's been duplicated across >> two outputs. Is there, as far as you know, a mono microphone model that we can be sure it does not do so? I.e., its sound is heared on only one channel? >> It's only 2-channel if it can record two separate sounds at the >> same time. >> >> You can get microphones which, in a single unit, record more than one >> channel at once. Their labelling or artwork on them normally makes it >> clear that they have L and R (or more than that) inputs. >> >> What makes and models are your mics? > > > I can't tell, because they're old and I don't keep their specs. One of them > was given to me about 15 years ago, the other I don't even remember how I > have it. But I've got another teo: they are, each of them, part of a > headphone. They also let hear the recorded sound from both channels. They > are: > > http://www.trust.com/it/product/11916-primo-chat-headset > > and > > http://www.trust.com/it/product/20685-mauro-headset Just now I received a reply from Trust assistence and they say the mic (Primo) is mono. Anyway, about my example above, can we conclude that mic1 is mono and that the mic input of my PC is stereo...? Thanks, Rodolfo oooo
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| From | David Wright <deblis@lionunicorn.co.uk> |
|---|---|
| Date | 2017-08-03 17:10 +0200 |
| Message-ID | <uapV7-1If-3@gated-at.bofh.it> |
| In reply to | #184571 |
On Thu 03 Aug 2017 at 15:43:15 (+0200), Rodolfo Medina wrote: > Rodolfo Medina <rodolfo.medina@gmail.com> writes: > > > Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> writes: > > > >> On Thu, 3 Aug 2017, at 13:23, Rodolfo Medina wrote: > >> > >>> 3) mic2 is stereo. > >> > >> Not necessarily. It might be a mono signal that's been duplicated across > >> two outputs. > > Is there, as far as you know, a mono microphone model that we can be sure it > does not do so? I.e., its sound is heared on only one channel? Most mono microphones will be fitted with a plug that has a tip and barrel, but no ring (between the two). The effects you observe could be no more than chance vagarities in the mechanical construction of plug and socket. > >> It's only 2-channel if it can record two separate sounds at the > >> same time. > >> > >> You can get microphones which, in a single unit, record more than one > >> channel at once. Their labelling or artwork on them normally makes it > >> clear that they have L and R (or more than that) inputs. > >> > >> What makes and models are your mics? > > > > > > I can't tell, because they're old and I don't keep their specs. One of them > > was given to me about 15 years ago, the other I don't even remember how I > > have it. But I've got another teo: they are, each of them, part of a > > headphone. They also let hear the recorded sound from both channels. They > > are: > > > > http://www.trust.com/it/product/11916-primo-chat-headset > > > > and > > > > http://www.trust.com/it/product/20685-mauro-headset > > > Just now I received a reply from Trust assistence and they say the mic (Primo) > is mono. > > Anyway, about my example above, can we conclude that mic1 is mono and that the > mic input of my PC is stereo...? If you want to know whether the input is stereo, plug in a cable which has a stereo 3.5mm plug going to two phono plugs. (These computer↔monitor sound cables were everywhere at one time.) Touch just the pin of each phono plug in turn and see if you get mains hum separately on the left and right channels of the computer. If you're keen to use these microphones and you have the budget and attitude of a school pupil, buy two mono 3.5mm sockets and a twin phono socket unit. Solder the connections yourself using the phone socket pair to anchor the 3.5mm ones and give it stability. Then connect this device to the computer with the aforementioned cable and plug in the mikes. Cheers, David.
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| From | Rodolfo Medina <rodolfo.medina@gmail.com> |
|---|---|
| Date | 2017-08-03 17:50 +0200 |
| Message-ID | <uaqxP-1Y5-5@gated-at.bofh.it> |
| In reply to | #184576 |
David Wright <deblis@lionunicorn.co.uk> writes: > On Thu 03 Aug 2017 at 15:43:15 (+0200), Rodolfo Medina wrote: >> Rodolfo Medina <rodolfo.medina@gmail.com> writes: >> >> > Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> writes: >> > >> >> On Thu, 3 Aug 2017, at 13:23, Rodolfo Medina wrote: >> >> >> >>> 3) mic2 is stereo. >> >> >> >> Not necessarily. It might be a mono signal that's been duplicated across >> >> two outputs. >> >> Is there, as far as you know, a mono microphone model that we can be sure it >> does not do so? I.e., its sound is heared on only one channel? > > Most mono microphones will be fitted with a plug that has a tip and > barrel, but no ring (between the two). The effects you observe could > be no more than chance vagarities in the mechanical construction of > plug and socket. > >> >> It's only 2-channel if it can record two separate sounds at the >> >> same time. >> >> >> >> You can get microphones which, in a single unit, record more than one >> >> channel at once. Their labelling or artwork on them normally makes it >> >> clear that they have L and R (or more than that) inputs. >> >> >> >> What makes and models are your mics? >> > >> > >> > I can't tell, because they're old and I don't keep their specs. One of >> > them was given to me about 15 years ago, the other I don't even remember >> > how I have it. But I've got another teo: they are, each of them, part of >> > a headphone. They also let hear the recorded sound from both channels. >> > They are: >> > >> > http://www.trust.com/it/product/11916-primo-chat-headset >> > >> > and >> > >> > http://www.trust.com/it/product/20685-mauro-headset >> >> >> Just now I received a reply from Trust assistence and they say the mic >> (Primo) is mono. >> >> Anyway, about my example above, can we conclude that mic1 is mono and that >> the mic input of my PC is stereo...? > > If you want to know whether the input is stereo, plug in a cable which > has a stereo 3.5mm plug going to two phono plugs. (These computer↔monitor > sound cables were everywhere at one time.) Touch just the pin of each > phono plug in turn and see if you get mains hum separately on the > left and right channels of the computer. > > If you're keen to use these microphones and you have the budget and > attitude of a school pupil, buy two mono 3.5mm sockets and a twin > phono socket unit. Solder the connections yourself using the phone > socket pair to anchor the 3.5mm ones and give it stability. Then > connect this device to the computer with the aforementioned cable > and plug in the mikes. Thanks. But all my 4 microphones terminates in 3.5mm, and the splitter I was talking about is two 3.5mm female and one 3.5mm male. Is this you mean...? Rodolfo
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| From | Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> |
|---|---|
| Date | 2017-08-03 19:10 +0200 |
| Message-ID | <uarNg-32O-17@gated-at.bofh.it> |
| In reply to | #184580 |
On Thu, 3 Aug 2017, at 16:45, Rodolfo Medina wrote: > Thanks. But all my 4 microphones terminates in 3.5mm, and the splitter I > was > talking about is two 3.5mm female and one 3.5mm male. Is this you > mean...? No. Look at: https://i.ytimg.com/vi/x1q9MXvjDlM/maxresdefault.jpg That should show you pictures of two, three and four contact mini jack plugs. A two-contact one is used for one audio channel (the two contacts being signal & ground). A three contact one is used for two channels (signal 1, signal 2, and ground). A four contact one is for three channels (eg on a stereo headset which has L & R speakers, but a single mono microphone) - the four contacts being L, R, mic and ground. (The tip/ring/sleeve terms that someone else mentioned are names for the different contacts on a three-contact jack plug.) Which type of plugs do you have on your mics? On 'professional' equipment it gets a bit more complicated when three connections are used for a single audio channel, being the +ve half of a waveform, the -ve half, and ground. (These are known as 'balanced' connections, and typically use either XLR plugs & sockets or 3-contact 6.25mm audio jacks.) -- Jeremy Nicoll - my opinions are my own.
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| From | "larry owens" <larrydowens6@att.net> |
|---|---|
| Date | 2017-08-03 19:40 +0200 |
| Message-ID | <uasgj-3eZ-19@gated-at.bofh.it> |
| In reply to | #184582 |
FYI the "tip, ring and sleeve" notation derives from the 3-wire connection that connects old land-lines to the telephone central office in the user's area. Larry -----Original Message----- From: Jeremy Nicoll [mailto:jn.ml.dbn.25@letterboxes.org] Sent: Thursday, August 03, 2017 10:07 AM To: debian-user@lists.debian.org Subject: Re: Live recording On Thu, 3 Aug 2017, at 16:45, Rodolfo Medina wrote: > Thanks. But all my 4 microphones terminates in 3.5mm, and the splitter I > was > talking about is two 3.5mm female and one 3.5mm male. Is this you > mean...? No. Look at: https://i.ytimg.com/vi/x1q9MXvjDlM/maxresdefault.jpg That should show you pictures of two, three and four contact mini jack plugs. A two-contact one is used for one audio channel (the two contacts being signal & ground). A three contact one is used for two channels (signal 1, signal 2, and ground). A four contact one is for three channels (eg on a stereo headset which has L & R speakers, but a single mono microphone) - the four contacts being L, R, mic and ground. (The tip/ring/sleeve terms that someone else mentioned are names for the different contacts on a three-contact jack plug.) Which type of plugs do you have on your mics? On 'professional' equipment it gets a bit more complicated when three connections are used for a single audio channel, being the +ve half of a waveform, the -ve half, and ground. (These are known as 'balanced' connections, and typically use either XLR plugs & sockets or 3-contact 6.25mm audio jacks.) -- Jeremy Nicoll - my opinions are my own.
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| From | Rodolfo Medina <rodolfo.medina@gmail.com> |
|---|---|
| Date | 2017-08-03 20:30 +0200 |
| Message-ID | <uat2G-3LX-11@gated-at.bofh.it> |
| In reply to | #184582 |
Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> writes: > On Thu, 3 Aug 2017, at 16:45, Rodolfo Medina wrote: > >> Thanks. But all my 4 microphones terminates in 3.5mm, and the splitter I >> was >> talking about is two 3.5mm female and one 3.5mm male. Is this you >> mean...? > > No. Look at: https://i.ytimg.com/vi/x1q9MXvjDlM/maxresdefault.jpg > > That should show you pictures of two, three and four contact mini jack > plugs. > > A two-contact one is used for one audio channel (the two contacts being > signal & ground). > > A three contact one is used for two channels (signal 1, signal 2, and > ground). > > A four contact one is for three channels (eg on a stereo headset which > has L & R speakers, > but a single mono microphone) - the four contacts being L, R, mic and > ground. > > (The tip/ring/sleeve terms that someone else mentioned are names for the > different contacts > on a three-contact jack plug.) > > Which type of plugs do you have on your mics? All four my mics, all my headphones, all my adaptors, are all of type 2 in the picture, where it says `stereo'. > On 'professional' equipment it gets a bit more complicated when three > connections are > used for a single audio channel, being the +ve half of a waveform, the > -ve half, and ground. > (These are known as 'balanced' connections, and typically use either XLR > plugs & sockets > or 3-contact 6.25mm audio jacks.) Many thanks, Rodolfo
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| From | David Christensen <dpchrist@holgerdanske.com> |
|---|---|
| Date | 2017-08-04 03:10 +0200 |
| Message-ID | <uazhM-8iN-11@gated-at.bofh.it> |
| In reply to | #184593 |
On 08/03/17 05:23, Rodolfo Medina wrote: > The mic input on my PC [may be] stereo. In fact, it is a laptop, nay a > netbook, doesn't have a line in and it is reasonable that its mic > input is also a line in; What is the make and model of your netbook? My Dell Inspiron E1505 laptop has a stereo microphone connector. When I run an OS with good sound support, the audio mixer applet includes a means (e.g. checkbox) for selecting between microphone or line-level signals. On 08/03/17 11:15, Rodolfo Medina wrote: > Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> writes: >> >> Look at: https://i.ytimg.com/vi/x1q9MXvjDlM/maxresdefault.jpg > > All four my mics, all my headphones, all my adaptors, are all of type > 2 in the picture, where it says `stereo'. On 08/03/17 06:19, Rodolfo Medina wrote: > Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> writes: >> >> What makes and models are your mics? > > I can't tell, because they're old and I don't keep their specs. One > of them was given to me about 15 years ago, the other I don't even > remember how I have it. But I've got another teo: they are, each of > them, part of a headphone. They also let hear the recorded sound from > both channels. They are: > > http://www.trust.com/it/product/11916-primo-chat-headset > > and > > http://www.trust.com/it/product/20685-mauro-headset Do the headsets have one or two phone plugs? What color or colors? What size or sizes -- original 1/4 inch, miniature 3.5 mm, or sub-miniature 2.5 mm? https://en.wikipedia.org/wiki/Phone_connector_(audio)#Modern_connectors What size are the phone plugs on the non-headset microphones? David
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| From | Rodolfo Medina <rodolfo.medina@gmail.com> |
|---|---|
| Date | 2017-08-04 09:20 +0200 |
| Message-ID | <uaF3P-3UX-9@gated-at.bofh.it> |
| In reply to | #184614 |
David Christensen <dpchrist@holgerdanske.com> writes: > On 08/03/17 05:23, Rodolfo Medina wrote: >> The mic input on my PC [may be] stereo. In fact, it is a laptop, nay a >> netbook, doesn't have a line in and it is reasonable that its mic >> input is also a line in; > > What is the make and model of your netbook? It's an Acer Aspire One, and the model should be ZG8. > My Dell Inspiron E1505 laptop has a stereo microphone connector. When I run > an OS with good sound support, the audio mixer applet includes a means > (e.g. checkbox) for selecting between microphone or line-level signals. > > > On 08/03/17 11:15, Rodolfo Medina wrote: >> Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> writes: >>> >>> Look at: https://i.ytimg.com/vi/x1q9MXvjDlM/maxresdefault.jpg >> >> All four my mics, all my headphones, all my adaptors, are all of type >> 2 in the picture, where it says `stereo'. > > > On 08/03/17 06:19, Rodolfo Medina wrote: >> Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> writes: >>> >>> What makes and models are your mics? >> >> I can't tell, because they're old and I don't keep their specs. One >> of them was given to me about 15 years ago, the other I don't even >> remember how I have it. But I've got another teo: they are, each of >> them, part of a headphone. They also let hear the recorded sound from >> both channels. They are: >> >> http://www.trust.com/it/product/11916-primo-chat-headset >> >> and >> >> http://www.trust.com/it/product/20685-mauro-headset > > Do the headsets have one or two phone plugs? What color or colors? What size > or sizes -- original 1/4 inch, miniature 3.5 mm, or sub-miniature 2.5 mm? They all have one green 3.5mm stereo plug. > https://en.wikipedia.org/wiki/Phone_connector_(audio)#Modern_connectors > > > What size are the phone plugs on the non-headset microphones? Same: 3.5mm, stereo. All of them. Thanks! Rodolfo
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| From | David Christensen <dpchrist@holgerdanske.com> |
|---|---|
| Date | 2017-08-05 23:50 +0200 |
| Message-ID | <ubf7j-1Vj-9@gated-at.bofh.it> |
| In reply to | #184621 |
On 08/04/17 00:06, Rodolfo Medina wrote: > David Christensen <dpchrist@holgerdanske.com> writes: >> One more question that might explain the ring -- do the >> microphones have switches? > > They don't. The two ones that come with headsets have volume control > wheel, but I don't know if it is for the headsets only. My first guess would be that the volume control is a stereo logarithmic potentiometer wired between the earpieces plug and the earpieces. Electronic test equipment might provide more clues. On 08/04/17 00:06, Rodolfo Medina wrote: > David Christensen <dpchrist@holgerdanske.com> writes: >> What is the make and model of your netbook? > > It's an Acer Aspire One, and the model should be ZG8. When I go to the Acer support page: https://www.acer.com/ac/en/US/content/drivers "ZG8" is not a valid model number -- it should be something like "AO521". If your netbook has a stereo microphone/ line-in connector, then you might be able to make stereo recordings by patching the left microphone to the tip (+) and sleeve (-) and the right microphone to the ring (+) and sleeve (-). (e.g. the negatives are commoned). >> Do the headsets have one or two phone plugs? What color or >> colors? What size or sizes -- original 1/4 inch, miniature 3.5 mm, >> or sub-miniature 2.5 mm? > > They all have one green 3.5mm stereo plug. So, one green stereo 3.5 mm miniature phone plug for the earpieces and one black stereo 3.5 mm miniature phone plug for the microphone? As you know the make and model, perhaps you can find the specifications and/or contact technical support to ask them what signals are connected to the tip, ring, and sleeve. I have a Logitech headset that came with a Logitech webcam. Neither have an obvious model or part number on them. The headset has: - One black stereo 3.5 mm miniature phone plug with a headphone symbol - One pink stereo 3.5 mm miniature phone plug with a microphone symbol. Checking the DC resistances between the tip, ring, and sleeve of the microphone plug using my Fluke 77 DMM: tip-ring 0.3 Ohm tip-sleeve 1080 Ohm ring-sleeve 1079 Ohm I expect that the headset microphone is monophonic, the signal common is wired to the plug sleeve, and the signal hot is wired to the plug tip and ring in parallel. Checking the DC resistances of the earpieces plug: tip-ring 46.1 Ohm tip-sleeve 23.8 Ohm ring-sleeve 24.3 Ohm using some jumper cables, and playing some music on my computer, I expect that the two earpieces are monophonic, the earpiece negative terminals are wired to the plug sleeve, the left earpiece positive terminal is wired to the plug tip, and the right earpiece positive terminal is wired to the plug ring. >> What size are the phone plugs on the non-headset microphones? > > Same: 3.5mm, stereo. All of them. Color? David
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| From | Rodolfo Medina <rodolfo.medina@gmail.com> |
|---|---|
| Date | 2017-08-06 18:40 +0200 |
| Message-ID | <ubwKS-4BB-37@gated-at.bofh.it> |
| In reply to | #184696 |
David Christensen <dpchrist@holgerdanske.com> writes: > On 08/04/17 00:06, Rodolfo Medina wrote: >> David Christensen <dpchrist@holgerdanske.com> writes: >>> What is the make and model of your netbook? >> >> It's an Acer Aspire One, and the model should be ZG8. > > When I go to the Acer support page: > > https://www.acer.com/ac/en/US/content/drivers > > > "ZG8" is not a valid model number -- it should be something like "AO521". > > > If your netbook has a stereo microphone/ line-in connector, then you might be > able to make stereo recordings by patching the left microphone to the tip (+) > and sleeve (-) and the right microphone to the ring (+) and sleeve > (-). (e.g. the negatives are commoned). Yes, everything lets us think that the `mic' entry of my Acer Aspire One is stereo: as reported in my messages marked with `solved' in the present thread, I managed to do stereo live records with the use of a 3.5mm twin-mono-female--single-stereo-male cable plugged into the `mic' input of my PC with the two microphones plugged into it. Thanks, Rodolfo
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| From | David Christensen <dpchrist@holgerdanske.com> |
|---|---|
| Date | 2017-08-04 03:40 +0200 |
| Message-ID | <uazKN-8uY-9@gated-at.bofh.it> |
| In reply to | #184593 |
On 08/03/17 06:19, Rodolfo Medina wrote: > Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> writes: >> >> What makes and models are your mics? > > I can't tell, because they're old and I don't keep their specs. One > of them was given to me about 15 years ago, the other I don't even > remember how I have it. One more question that might explain the ring -- do the microphones have switches? David
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| From | Rodolfo Medina <rodolfo.medina@gmail.com> |
|---|---|
| Date | 2017-08-04 09:10 +0200 |
| Message-ID | <uaEUa-3Ro-13@gated-at.bofh.it> |
| In reply to | #184616 |
David Christensen <dpchrist@holgerdanske.com> writes: > On 08/03/17 06:19, Rodolfo Medina wrote: >> Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> writes: >>> >>> What makes and models are your mics? >> >> I can't tell, because they're old and I don't keep their specs. One >> of them was given to me about 15 years ago, the other I don't even >> remember how I have it. > > One more question that might explain the ring -- do the microphones have > switches? They don't. The two ones that come with headsets have volume control wheel, but I don't know if it is for the headsets only. Rodolfo
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| From | Rodolfo Medina <rodolfo.medina@gmail.com> |
|---|---|
| Date | 2017-08-03 20:20 +0200 |
| Message-ID | <uasT0-3Ii-13@gated-at.bofh.it> |
| In reply to | #184576 |
David Wright <deblis@lionunicorn.co.uk> writes: > On Thu 03 Aug 2017 at 15:43:15 (+0200), Rodolfo Medina wrote: >> Rodolfo Medina <rodolfo.medina@gmail.com> writes: >> >> > Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> writes: >> > >> >> On Thu, 3 Aug 2017, at 13:23, Rodolfo Medina wrote: >> >> >> >>> 3) mic2 is stereo. >> >> >> >> Not necessarily. It might be a mono signal that's been duplicated across >> >> two outputs. >> >> Is there, as far as you know, a mono microphone model that we can be sure it >> does not do so? I.e., its sound is heared on only one channel? > > Most mono microphones will be fitted with a plug that has a tip and > barrel, but no ring (between the two). The effects you observe could > be no more than chance vagarities in the mechanical construction of > plug and socket. > >> >> It's only 2-channel if it can record two separate sounds at the >> >> same time. >> >> >> >> You can get microphones which, in a single unit, record more than one >> >> channel at once. Their labelling or artwork on them normally makes it >> >> clear that they have L and R (or more than that) inputs. >> >> >> >> What makes and models are your mics? >> > >> > >> > I can't tell, because they're old and I don't keep their specs. One of >> > them was given to me about 15 years ago, the other I don't even remember >> > how I have it. But I've got another teo: they are, each of them, part of >> > a headphone. They also let hear the recorded sound from both channels. >> > They are: >> > >> > http://www.trust.com/it/product/11916-primo-chat-headset >> > >> > and >> > >> > http://www.trust.com/it/product/20685-mauro-headset >> >> >> Just now I received a reply from Trust assistence and they say the mic >> (Primo) is mono. >> >> Anyway, about my example above, can we conclude that mic1 is mono and that >> the mic input of my PC is stereo...? > > If you want to know whether the input is stereo, plug in a cable which > has a stereo 3.5mm plug going to two phono plugs. (These computer↔monitor > sound cables were everywhere at one time.) Touch just the pin of each > phono plug in turn and see if you get mains hum separately on the > left and right channels of the computer. I used a cable thath has, at one end, a 3.5mm stereo male plug; and, at the other end, a couple of twin phono RCA males. I plugged the 3.5mm into the mic input of the PC. Then I did: $ sox -t alsa default output.wav Then I touched alternatively one and the other of the two phone plugs and saw that the output of sox alternatively filled up the left or right channel. > If you're keen to use these microphones and you have the budget and > attitude of a school pupil, buy two mono 3.5mm sockets and a twin > phono socket unit. Solder the connections yourself using the phone > socket pair to anchor the 3.5mm ones and give it stability. Then > connect this device to the computer with the aforementioned cable > and plug in the mikes. Not very clear to me... But I'm not good at soldering... Many thanks, Rodolfo
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| From | Doug <dmcgarrett@optonline.net> |
|---|---|
| Date | 2017-08-03 21:30 +0200 |
| Message-ID | <uatYJ-4nR-9@gated-at.bofh.it> |
| In reply to | #184569 |
On 08/03/2017 08:19 AM, Rodolfo Medina wrote: > Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> writes: > >> On Thu, 3 Aug 2017, at 13:23, Rodolfo Medina wrote: >> >>> 3) mic2 is stereo. >> Not necessarily. It might be a mono signal that's been duplicated across two >> outputs. It's only 2-channel if it can record two separate sounds at the >> same time. >> >> You can get microphones which, in a single unit, record more than one >> channel at once. Their labelling or artwork on them normally makes it >> clear that they have L and R (or more than that) inputs. >> >> What makes and models are your mics? > > I can't tell, because they're old and I don't keep their specs. One of them > was given to me about 15 years ago, the other I don't even remember how I have > it. But I've got another teo: they are, each of them, part of a headphone. > They also let hear the recorded sound from both channels. They are: > > http://www.trust.com/it/product/11916-primo-chat-headset > > and > > http://www.trust.com/it/product/20685-mauro-headset > > Rodolfo > > I looked at both of the links. Note that there are two connections for each device: headset (earphone) connection and mic connection. The headset connection will be stereo, and the mic connection will be mono. If there is talkback (i.e., you can hear the mic output on the headphones,) the mic sound will appear in both earpieces, but will not be stereo--it will just be the same sound in both earpieces. You can't get something for nothing. If you want stereo, you will have to have two mics or a mic with two separate microphone elements aimed in two (left and right) directions. Such a device will have a plug with three connections on it: left, right, and ground. Your PC will not be able to handle such a microphone! You would need a stereo preamplifier to plug that mic into, and then you would plug the stereo output of the preamp into the LINE IN jack of the PC. I would hope that this information will settle the question! --doug
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| From | Rodolfo Medina <rodolfo.medina@gmail.com> |
|---|---|
| Date | 2017-08-03 21:50 +0200 |
| Message-ID | <uaui5-4xf-9@gated-at.bofh.it> |
| In reply to | #184598 |
Doug <dmcgarrett@optonline.net> writes: > On 08/03/2017 08:19 AM, Rodolfo Medina wrote: >> Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> writes: >> >>> On Thu, 3 Aug 2017, at 13:23, Rodolfo Medina wrote: >>> >>>> 3) mic2 is stereo. >>> Not necessarily. It might be a mono signal that's been duplicated across >>> two outputs. It's only 2-channel if it can record two separate sounds at >>> the same time. >>> >>> You can get microphones which, in a single unit, record more than one >>> channel at once. Their labelling or artwork on them normally makes it >>> clear that they have L and R (or more than that) inputs. >>> >>> What makes and models are your mics? >> >> I can't tell, because they're old and I don't keep their specs. One of them >> was given to me about 15 years ago, the other I don't even remember how I >> have it. But I've got another teo: they are, each of them, part of a >> headphone. They also let hear the recorded sound from both channels. They >> are: >> >> http://www.trust.com/it/product/11916-primo-chat-headset >> >> and >> >> http://www.trust.com/it/product/20685-mauro-headset >> >> Rodolfo >> >> > I looked at both of the links. Note that there are two connections for each > device: headset (earphone) connection and mic connection. The headset > connection will be > stereo, and the mic connection will be mono. If there is talkback (i.e., you > can hear the mic output on the headphones,) the mic sound will appear in both > earpieces, > but will not be stereo--it will just be the same sound in both earpieces. > > You can't get something for nothing. If you want stereo, you will have to > have two mics or a mic with two separate microphone elements aimed in two > (left and right) directions. Such a device will have a plug with three > connections on it: left, right, and ground. Your PC will not be able to > handle such a microphone! You would need a stereo preamplifier to plug that > mic into, and then you would plug the stereo output of the preamp into the > LINE IN jack of the PC. > > I would hope that this information will settle the question! > > --doug why do you get angry...? there's nothing to get angry, I think...
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