"Tobias Scharnberg":
Hello List, I'm trying to find a library or code-snippet in order to do audio resampling from 8khz to 44,1khz and from 44,1khz to 8khz. I need to resample the data in realtime - resampling a buffer of data, not a soundfile. The quality doesn't need to be good so I guess the best solution might be linear audio resampling. The device to do the resampling on is an ARM CM-X255 running at 400MHz. I tried out libsamplerate so far but when I tested it with the soundfile conversion test program it needed 3,5 secs to sample from 8kHz to 44,1 khz for a 1,7 secs audiofile - which is too slow for me. Is there something faster that can do the job?
Was this with the linear resampler lib libsamplerate? In case, you should know that its terrible slow. Last time I tried, the fastest sinc resampler in CLM was almost as fast as the linear resampler in libsamplerate.
(Erik, you should do something about that...) I don't know of any other libraries that does linear resampling, but its not that difficult to make one manually. I'm sure there are example codes floating around as well.
