Tag Archives: Spectral envelope

Click and Buzz

While the prototype voice synthesis using spectral envelopes is encouraging, there are still a lot of issues left to resolve. I tracked down a “click” in the output to sudden transitions in amplitude between frames. Amplitude and frequency are now … Continue reading

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Low-Budget Spectral Envelopes

Some time back I’d written some Java code that attempted to create a rough spectral envelope by picking the n highest point in an FFT. It was moderately successful, but I eventually decided to take the project down the synthesis … Continue reading

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Grumble…

I’ve been trying to implement spectral morphing, but have run into a lot of problems. The morphing itself works pretty well – I can apply an envelope taken from one sound, and apply it to another with a fair amount … Continue reading

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Implementing Spectral Envelope Morphs

I’ve done an initial implementation of crossfades via spectral morphs. There’s currently no support for pitch shifting, but that should be straight forward to add. Although it works well for some tests, for others I’m getting what sounds like loud … Continue reading

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Working on Morphing Spectral Envelopes

Having implemented¬†spectral envelopes, it now makes sense to implement morphing of spectral envelopes to get a smooth interpolation between vowel sounds. But first, I needed to track down a bug in the shiny new¬†SpectralEnvelope class, which was failing to produce … Continue reading

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