I'm looking for libraries to:
- read and write meta data (for example ID3v2 tags in mp3 and all)
- convert compressed to to raw audio data and if possible raw audio data to mp3, ogg, aac, ...
- digitally process the audio data (energy, timbre, Mel Frequency Cepstral Coefficients - MFCC, FFT, LPC, Autocorrelation, Wavelet, ...)
I already know and am not content with:
- JMF: original from Sun, reads mp3 and turns it into WAV. But does not read meta data nor provide any advanced digital processing features.
- FMJ: Alternative implementation to JMF with same limitations.
- jAudio: Not stable and although potential, currently not well maintained.
- Marsyas: In digital processing just what I had hoped for, but in C++. Maybe some port / integration already available?
- JID3: API for meta data, but seems to be dead (last release 2005/12/10).
- JLayer: API for reading and playing, also dead (last update 2004/11/28).
- MetaMusic: API of the program is neat but no official standalone open source project. Therefore has no community, future support and all...
- Light Dev: Some interesting features, but not at all complete.
This is what some of my own investigation has turned up. I would greatly appreciate all input, suggestions, critics, ...