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Mention formant-compensation in README

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README.md
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@ -122,6 +122,12 @@ stretch.flush(outputBuffers, outputSamples);
Using `.seek()`/`.flush()` like this, you can perform an exact time-stretch on a fixed-length sound, and your result will have `.outputLatency()` of pre-roll.
### Formant compensation
The two methods `.setFormantFactor()` and `.setFormantSemitones()` can specify a scaling-factor for the formants. They both have an optional `compensatePitch` flag, and enabling this . when performing formant correction/shifting.
The formant correction is not a sharp as monophonic algorithms (such such as PSOLA). It also needs you to give it a rough estimate of fundamental frequency (relative to Nyquist) using `.setFormantBase()`.
## Compiling
⚠️ This has mostly been tested with AppleClang (Mac), and MSVC (Windows).  We aim to support other compilers though, so please get in touch if you have any problems.