jamie@61: Rationalise use of powf etc. vs pow
jamie@52: Add spectral_flux
jamie@52: Add geometric_mean
jamie@52: Add spectral_mean, spectral_deviation, spectral_geometric_mean etc.
jamie@52: Add weighted temporal features as per Peeters (xtract_weighted_mean etc) weight given as argv?
jamie@22: Improve noise robustness of xtract_f0
jamie@24: Add feature advertisement
jamie@22: Fix xtract_hps - it doesn't work!
jamie@19: Add Pure Data help file
jamie@19: Add delta functions
jamie@19: Add Max/MSP external example
jamie@42: Add self documentation
jamie@49: Check and add return values as appropriate. Make them more sensible!
jamie@19: ...do other stuff and eventually...
jamie@22: ...optimise!