Audio in and out of a pipe

murraythomson

Hi,
I've modified the SampleLoader.h file to read raw data from a file instead of a wav file hardcoding the known sample rate and channels.
Now I'm trying to read the same raw data from a pipe instead of a file. I open the file (pipe), first thing in the "setup" and then I pass the file descriptor as a new argument to the functions in SampleLoader.h.
fd = open (gFilename.c_str(), O_RDONLY);
I'm using sf_open_fd to read from the pipe. It only complaints when I start introducing samples into the pipe. The error is:

Couldn't initialise audio rendering
Error: unable to initialise audio
make: *** [runide] Error 255
Bela stopped

Can anyone please help me understanding this error?
How would I go to write the audio input into a different pipe?

Thanks

giuliomoro

You get "Couldn't initialise audio rendering" when your setup() function returns false. Make sure you return true from setup() if the initialization goes fine.

murraythomson

Thank you giuliomoro. The SampleLoader.h> getNumFrames coudn't get the number of frames from a pipe with raw data. It worked when I hard coded it to the same value as the sample rate.