On 22 Nov 2015, at 21:39, Erica Cooper <ecooper@xxxxxxxxxxxxxxx> wrote: Thanks very much for the advice. It is true that the original data was 16kHz and then up-sampled to use with the demo. I’m sure you know this, but sometimes people forget the basics: upsampling will result in a signal with no energy between the original Nyquist frequency (8 kHz in this case) and the new Nyquist frequency (24kHz in this case). That means a pretty tricky spectral envelope for the cepstral estimation to fit to. Simon |
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