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Results tagged with Search options user 11807
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I am working on speech synthesis with LPC and I originally implemented a pre-emphasis filter: +(void)processBuffer:(Buffer *)buffer { float alpha = -0.9375f; for (int i = 1; i < buffer.size …
asked Sep 6 '15 by patrick
0
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Turns out the problem I was having had to do with the fact that I had implemented an IIR filter rather than an FIR. double unmodifiedPreviousSample = buffer.samples[0]; double tempSample; for (int i …
answered Sep 21 '15 by patrick
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I am working on a library for generating LPC for speech synthesis. I am currently using a hamming window for the spectral analysis which goes in 200ms blocks over the signal, and does the a-to-k …
asked Sep 10 '15 by patrick
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I am building an LPC analysis tool, and am at the point of needing to do pitch period analysis. I was initially interested in using the Gold & Rabiner algorithm for this, and got a hold of a FORTRAN … bit more modern and robust... And even better, if there are any open source libraries that have apis for pitch period analysis that my tool can hook into? EDIT: I am building an LPC analysis tool for speech waveforms. …
asked Jan 12 '15 by patrick
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I am building an LPC analysis tool for speech synthesis and did the following to generate my a0 through a10: sum = 0 for (i = 0; i < N - order; i++) { sum += s[i + order] * s[i] } So, for an … : -0.03950634100447886 I have another LPC analysis tool which shows totally different K values than what I am getting, so I am suspecting that my code to generate the a's has an error in it. I've been looking …
asked Jan 12 '15 by patrick