Re: recording audio from speakers

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On Sun, 28 Jul 2013, YuGiOhJCJ Mailing-List wrote:

> I use ffmpeg to record because I like this software.
> The main advantage is the impressive number of options available (choice of the video size, video codec, audio codec, ...).
> Also, I am recording images + audio (= video) so I need ffmpeg.

OK, that is fine. Exactly what video/audio streams are you capturing? Ie,
there may be some way that someone knows to caputre it directly (I am sorry I
do not). Is it some sort of streaming video? Is it some sort of skyping or
phone conversation? Letting the group know could be very helpful in getting
help to you.

ffmpeg may well be good for recording video. If it were just audio, then other
solutions would suggest themselves including creating alsa PCMs which copy
the audio sent to the sound card to a file as well. But for video that would
clearly not be sufficient.


>
> Do you see how to capture what I hear during the record ?
>
> On Sun, 28 Jul 2013 03:03:02 -0700 (PDT)
> Bill Unruh <unruh@xxxxxxxxxxxxxx> wrote:
>
>> On Sun, 28 Jul 2013, YuGiOhJCJ Mailing-List wrote:
>>
>>> Yes, I confirm, "what you hear" is what I mean.
>>>
>>> Do you see any way to do this with ffmpeg/alsa ?
>>
>> The easiest way of course is to simply capture the stream that youare
>> displaying on your desktop. Ie, something is already sending a digitial signal
>> containing video and audio to your desktop. Your computer is then interpreting
>> that and sending it out to your monitor and out your soundcard. Why not just
>> intercept that stream before it is interpreted by your computer, and just
>> saving that? Ie, if you told us what you wanted to save, it allow us to make
>> suggestions that would do what you want.
>>
>> For example you did not tell us originally why you were using ffmpeg which has
>> to do with video, to capture an audio stream. aplay is a far simpler way of
>> capturing audio than ffmpeg ( or audacity, or other sound software)
>>
>>>
>>> On Sun, 28 Jul 2013 03:28:03 +0000
>>> lists@xxxxxxxxxxxxxx wrote:
>>>
>>>> Regarding recording the speakers, I think the poster wants the equivalent of "what you hear" on windows machines.
>>>>
>>>>
>>>
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>>
>> --
>> William G. Unruh   |  Canadian Institute for|     Tel: +1(604)822-3273
>> Physics&Astronomy  |     Advanced Research  |     Fax: +1(604)822-5324
>> UBC, Vancouver,BC  |   Program in Cosmology |     unruh@xxxxxxxxxxxxxx
>> Canada V6T 1Z1     |      and Gravity       |  www.theory.physics.ubc.ca/
>
> ------------------------------------------------------------------------------
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> Start your free trial of AppDynamics Pro today!
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-- 
William G. Unruh   |  Canadian Institute for|     Tel: +1(604)822-3273
Physics&Astronomy  |     Advanced Research  |     Fax: +1(604)822-5324
UBC, Vancouver,BC  |   Program in Cosmology |     unruh@xxxxxxxxxxxxxx
Canada V6T 1Z1     |      and Gravity       |  www.theory.physics.ubc.ca/

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