Re: [SoX-users] Real-time input buffering

[Chris B. <Chr...@fn...>]

Aaron Birenboim wrote:
> 
>    I have an application which analyses an audio stream
> on the fly.  (You could say real-time).
> The analysis can have varying processor load, depending
> on the content of the audio stream.
> 
>     I CANNOT loose ANY audio data.

If you must write a custom program then you might look on freshmeat.net
for the program called wavrec.  It is a threaded application and so uses
1 thread for reading audio data and 1 for writting audio data.  This
allows the reading portion to start queueing buffers when the writing is
not fast enough.


>     SoX must have SOME buffering in order to be able to operate
> under -t ossdsp.  How does this work?  Could my problem be solved
> simply by increasing the size of this buffer?

Unfortunately, SoX does not use any buffering beyond what the OSS driver
supports and what libc provides for I/O.  This just happens to be good
enough for coping from disk<->soundcard on most modern fast computers in
most cases.