Crate pitch_shift 

pitch_shift

This crate contains one library and one program.

As a library

The library was initially a port of https://github.com/cpuimage/pitchshift/.

It implementes the “Phase Vocoder” technique which shifts the pitch without stretching the recording and without bringing in too many artifacts (though some are still present).

Using the out_samples parameter, users can also slow down or accelerate the sound (without altering the pitch).

It exposes one type, Shifter, which allows you to shift the pitch of audio buffers. It’s up to you to bring the audio (128 samples at a time), maybe from a file or from your computer’s microphone. Its latency is fixed to 1024 - out_samples samples.

See https://docs.rs/pitch_shift for documentation.

As a program

The program at examples/shift-wav.rs allows you to shift the pitch of WAV files from your command line.

It can be installed this way:

cargo install pitch_shift --example shift-wav

Run it without any argument to learn how to use it.

Structs

Shifter

Pitch-shifting Interface

Constants

TOTAL_F32

Total number of f32 needed for the shifter state

Type Aliases

RawState

Array of TOTAL_F32 floats