Re: [chuck-users] playing raw audio files

Hi, To be fair, all my Python script did was remove the first five lines of text from the file. ;-) ChucK's FileIO objects (at the time I was using them) dealt best with files consisting solely of numbers. If you can get your file to be nothing by whitespace-separated numbers, it's a breeze. I read everything in as a float whether it was one or not ("3.0" vs. "3"), which makes life slightly easier. One thing that is kind of crazy but totally possible now, is to use a Unix FIFO pipe as input to your ChucK script. If you set it up correctly, you can have a Python script write nicely-formatted data to your FIFO pipe file and ChucK can read from it as it comes. That way you can use Python string processing as a stage in your file input to ChucK. It's a bit hackish, but I've done it before and it totally works. Look up the Unix command "mkfifo". I should write a tutorial... Good luck, Mike On Sat, Oct 3, 2009 at 7:54 PM, Andrew C. Smith wrote:

I think I understand what you're trying to do here. Have you tried WavIn at all, though? It's more general than SndBuf.

Mike Clemow did something like this with SPEAR files, and he had to write a Python script to do the string parsing and everything. Just because of ChucK's limited string functionality, this may be the best way to go. If you get it synchronized with OSC it would make it even smoother.

Andrew

On Sat, Oct 3, 2009 at 7:40 PM, Renato Fabbri wrote:

...

i beg for a clue. here is the thing i've playing with,  its a "python macro interpreter -- rythmic chuck sample player":

svn co http://svn.assembla.com/svn/audioexperiments/ABeatDetector

(browser: http://trac.assembla.com/audioexperiments/browser/ABeatDetector )

And now i've been wishing to play some raw audio files (actually, i want to read system files as raw audio).

I will write a python scritpt to open raw and write as .wav files for chuck to open for i am not able to open this files as audio directly in chuck.

any idea? ciao, rf

2009/10/2 Renato Fabbri

...

Hi List,

I didnt figure out how to read/play raw audio files in chuck, and didn't find any doc either.

say i want to read a mono "rawsound.raw" as 16bit samples and 8kHz sample rate (say playback sample rate is determined beforehand).

Is there a way to read and play such a raw audioo data or should i need to convert to wav or similar?

best, rf

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