When I first read about transient shaper, I was like “what’s the difference with a compressor? Is there one?”. And I tried to see how to get these transient without relying on the transient energy, with a relative power (ratio between the instant power and the mean power) filter, or its derivative, but nothing worked. Until someone explained that the gain was driven by the difference between a fast attack filtered power and a slower one. So here it goes.

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When I looked for an audio signal processing book, I found the classic [amazon_link id=”B005HF2HFE” target=”_blank” ]DAFX: Digital Audio Effects[/amazon_link], but the code is mainly Matlab. Was there a book with C++ examples? That’s how I found out about this book from Will Pirkle.

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