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Re: Live recording

From David Christensen <dpchrist@holgerdanske.com>
Newsgroups linux.debian.user
Subject Re: Live recording
Date 2017-08-05 23:50 +0200
Message-ID <ubf7j-1Vj-9@gated-at.bofh.it> (permalink)
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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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Thread

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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