[chuck-users] play and record stereo with WvIn and WvOut

[Robert Poor]

Michael:

Here's a code snippet I sent around April.  Might be helpful for  
playback...

> Thanks to a tip from Tom Lieber (who pointed out that WvOut doesn't  
> actually handle stereo files), here's a snippet of ChucK code people  
> might find useful:
>
> if (me.args() > 1) {
>    dac.chan(0) => Gain g0 => WvOut w0 => blackhole;
>    dac.chan(1) => Gain g1 => WvOut w1 => blackhole;
>    0.5 => g0.gain;
>    0.5 => g1.gain;
>    me.arg(0) => w0.wavFilename;
>    me.arg(1) => w1.wavFilename;
>    <<< "writing stereo output to files", me.arg(0), me.arg(1) >>>;
> } else if (me.args() > 0) {
>    dac => Gain g => WvOut w => blackhole;
>    0.5 => g.gain;
>    me.arg(0) => w.wavFilename;
>    <<< "writing mono output to file", me.arg(0) >>>;
> }
>
> Since it attaches to the dac, you can put it just about anywhere in  
> your ChucK program.  When you invoke chuck as in :
>
> % chuck mytest.ck:bleeep.wav
>
> it will write everything your program sends to the dac to a mono  
> "bleeep.wav" file.  If you invoke it as in:
>
> % chuck mytest.ck:bleep_0.wav:bleep_1.wav
>
> it will write everything you program sends to the dac to two mono  
> files: bleep_0.wav (left channel) and bleep_1.wav (right channel).   
> It's up to you to weave the two files together into a stereo sound  
> file.  There are several ways to do it -- I tend to use Audacity.
>
> - Rob

On 15 Aug 2009, at 13:50, Tom Lieber wrote:

> On Mon, Aug 3, 2009 at 1:20 PM, michael
> breitenbach<michaelbreitenbach at mac.com> wrote:
>> how ist it possible to play or record in stereo(or more channels)- 
>> aiff?
>> who can help?
>
> Save each channel to a separate WvOut.
>
> -- 
> Tom Lieber
> http://AllTom.com/
> _______________________________________________
> chuck-users mailing list
> chuck-users at lists.cs.princeton.edu
> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users

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Robert Poor
e:	robert.poor at nbt-ventures.com
p:	+1 617 818 5115
b:	http://blog.nbt-ventures.com
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