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Groups > linux.debian.user > #158512

Re: Sound card question

From Doug <dmcgarrett@optonline.net>
Newsgroups linux.debian.user
Subject Re: Sound card question
Date 2015-10-01 23:00 +0200
Message-ID <qeT7l-7th-17@gated-at.bofh.it> (permalink)
References <qeq5k-6MN-15@gated-at.bofh.it> <qetFU-3Ao-21@gated-at.bofh.it> <qeMyS-6jE-9@gated-at.bofh.it>
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On 10/01/2015 09:52 AM, Danny wrote:
> On Sep 30 15, Doug :
>> To: debian-user@lists.debian.org
>> Date: Wed, 30 Sep 2015 13:39:16 -0400
>> From: Doug <dmcgarrett@optonline.net>
>> Subject: Re: Sound card question
>> User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101
>>   Thunderbird/38.2.0
>> X-Loop: debian-user@lists.debian.org
>>
>>
>>
>> On 09/30/2015 09:55 AM, Danny wrote:
>>> Hi guys,
>>>
>>> I have a Sigmatel STAC9227 on-board sound card. Everything works fine as it
>>> should. It has the normal Mic , Ext.Speaker and Line-Out jacks.
>>>
>>> Currently the Mic and Ext.Speaker plugs are permanently occupied via speaker/mic
>>> headphones (Amateur Radio Stuff) ...
>>>
>>> What I would like to know is if it would be possible to send audio that goes to
>>> the headphones to the Line-Out jack at the same time?
>>>
>>> Thank You
>>>
>>> Danny
>>>
>>>
>> Why not just get a Y adapter?
>>
>> --dm
>
> lol ... that never even crossed my mind ...
>
> Using a Y-adapter naturally forces the following question:
> Does it effectively split the power/gain into two and I end up with half on one
> side and half on the other?
>
> Danny
>
>
I believe that the output of the headphone jack is not impedance matched--I expect it's just
a voltage source. Wat's more, unless you are plugging the same low-impedance devices into
both Y outputs, _and_ the source is impedance matched, you would not split the power
equally. I don't know what you want to do with the second output, but it's more
than likely a relatively high impedance, so it would not load the circuit at all.
I could be wrong, but it seems logical to me.

--doug

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Thread

Sound card question Danny <mynixmail@gmail.com> - 2015-09-30 16:00 +0200
  Re: Sound card question rlharris@oplink.net - 2015-09-30 16:40 +0200
    Re: Sound card question Danny <mynixmail@gmail.com> - 2015-10-01 15:50 +0200
  Re: Sound card question Doug <dmcgarrett@optonline.net> - 2015-09-30 19:50 +0200
    Re: Sound card question Seeker <seeker5528@comcast.net> - 2015-10-01 08:20 +0200
      Re: Sound card question Rob van der Putten <rob@sput.nl> - 2015-10-01 12:10 +0200
        Re: Sound card question Danny <mynixmail@gmail.com> - 2015-10-01 16:00 +0200
          Re: Sound card question Rob van der Putten <rob@sput.nl> - 2015-10-01 18:00 +0200
      Re: Sound card question Danny <mynixmail@gmail.com> - 2015-10-01 16:00 +0200
    Re: Sound card question Danny <mynixmail@gmail.com> - 2015-10-01 16:00 +0200
      Re: Sound card question rlharris@oplink.net - 2015-10-01 17:30 +0200
      Re: Sound card question Doug <dmcgarrett@optonline.net> - 2015-10-01 23:00 +0200
        Re: Sound card question rlharris@oplink.net - 2015-10-02 00:20 +0200
        Re: Sound card question rlharris@oplink.net - 2015-10-02 01:00 +0200
        Re: Sound card question Danny <mynixmail@gmail.com> - 2015-10-02 17:30 +0200
          Re: Sound card question Doug <dmcgarrett@optonline.net> - 2015-10-02 19:20 +0200
            Re: Sound card question rlharris@oplink.net - 2015-10-02 20:40 +0200
              Re: Sound card question Doug <dmcgarrett@optonline.net> - 2015-10-03 00:40 +0200
                Re: Sound card question rlharris@oplink.net - 2015-10-03 04:20 +0200
                Re: Sound card question Doug <dmcgarrett@optonline.net> - 2015-10-03 06:30 +0200
          RE: Sound card question "Larry Owens" <owens@netptc.net> - 2015-10-02 19:20 +0200
          Re: Sound card question David Wright <deblis@lionunicorn.co.uk> - 2015-10-02 19:30 +0200
          Re: Sound card question Stuart Longland <stuartl@longlandclan.id.au> - 2015-10-04 01:20 +0200
            Re: Sound card question rlharris@oplink.net - 2015-10-04 02:30 +0200
              Re: Sound card question Stuart Longland <stuartl@longlandclan.id.au> - 2015-10-05 23:00 +0200

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