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Re: [listener] Re: Using (BOTH) analog aux (or CD) AND microphone as input.



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The listener package can record 2 separate channels of audio at the same time, and completely independent of each other.
What I have done is I have 2 VHF radios programmed for two different radio channels.  (Main Dispatch and Tactical Channel) The radios are connected to the left and right channels of the line-in connection on the sound card with a "Y" cable.
 
The "listenersoundpipe" splits the left and right channel into two separate audio streams.  Then two separate listener processes record each stream independently.  The resulting audio files are saved in separate directories.
To use separate inputs requires that you be able to switch the mixer capture port back and forth between the two inputs because it can only record from one input at a time.  By using one input (any of the available can be used) and feeding the two audio channels into the left and right channel input and then using "listenersoundpipe" to separate the audio streams once they are digitized allows two independent recorders on one sound card.  Two sound cards equals 4 channels, 3 sound cards equals 6 channels etc.
 
You must start the processes in the correct sequence to make it work.
If you would like I can send you my setup files. 
 
Ted
----- Original Message -----
Sent: Thursday, February 24, 2005 5:36 AM
Subject: [listener] Re: Using (BOTH) analog aux (or CD) AND microphone as input.

OK, I did my homework (at least part of it anyway...  :) and did read
alsamixer man page.
I even ran it!

The question now (and again, I have to do some more "research") is whether I
can have several simultaneous inputs on a single sound card.
My plan is to use one sound card for each radio.  I capture the mike over
the mike (simple, isn't it?  :) and the speaker using analog input.
I can then sort the conversation out using file times because I will never
get both inputs at he same time (the mike kills the speaker)
Please don't think that I am expecting you to sort out the issue for me, all
I expect is a quick and dirty "yes, it is possible" or "no, don't even
bother with it" so I can plan my next move.  A "no, I don't have a clue"
would be also appreciated, even though it still leaves me at square one.
Again, thanks!
Enrique A. Troconis

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