Crate audio_visualizer 

Audio visualization library for developers: quickly check audio samples visually, e.g. while working on audio algorithms.

All functionality works on mono f32 samples, typically amplitudes in [-1.0, 1.0]. Split interleaved stereo data with deinterleave_stereo first.

• Static images: waveform::Waveform renders samples as PNG file or SVG string; spectrum does the same for frequency spectra.
• Live visualization: live records audio from an input device and shows the waveform plus a custom transformation (e.g. lowpass filter or spectrum) in a real-time GUI window.

Waveforms show the min/max amplitude per pixel column rather than individual samples; waveform explains why.

Modules

live

Live audio visualization: records audio from an input device and shows it in a real-time GUI window (egui).

spectrum

Static frequency spectrum visualization: render (frequency, magnitude) pairs to a PNG file or SVG string via Spectrum.

waveform

Static waveform visualization: render mono audio samples to a PNG file or SVG string via Waveform.

Enums

Error

Errors that can occur while visualizing audio data.

Functions

deinterleave_stereo

Splits interleaved stereo samples (left, right, left, right, …) into a left and a right channel vector.