Commandline audio analysis utility? Options

[sheh]

Can anyone suggest a utility that takes an audio file as input, and can output to a text/CSV file various data (RMS, peaks, dominant frequencies, etc.) per each N ms of the input, for both time and frequency domains?

Windows is my main target, but *nix as well.

It seems SoX has a few features in this direction, but not flexible enough (e.g., data per N ms, frequency domain resolution).

[sheh]

Thanks for the suggestions.

So that’s less than half a minute for 78562 blocks. For a block length of 0.009 seconds (480101 blocks), it takes four minutes. The processor is a 1 GHz AMD 4850e, nothing extreme.

Is that a realistic concern given how trivial the processing you are doing is?

Interesting. I'm wonder if execution overhead is that trivial on a webhost, or at least, in terms of what they'd consider valid use. But then again, there's also the missing features with SoX.

Your best bet is probably MATLAB or a MATLAB Clone

Although I'd rather use something existing made for the specific job, rather than semi-program, I'll check this direction too.

As a free alternative to MATLAB I'd suggest to try Python + Numpy/Scipy. I've never used it myself, but there is also a scikit for audio processing around.

Sounds like this might need some customization, but I'll check it out. I wonder how well Python performs, but there are also potential advantages to Python for running on a shared webhost.

This post has been edited by sheh: Nov 6 2012, 04:49