Rust library: audio-visualizer

So far this library is really simple and mainly targets developers that develop audio algorithms. With this library you can easily display your current audio data/waveform/spectrum and check if everything looks good. Functionality is really limited and follow the KISS (keep it simple, stupid) principle. Code contributions are very welcome!

Example of a waveform

Example of a spectrum

Covered Functionality

• waveform

  • dynamic: live visualization to audio input stream
  • [ ] TODO: code contributions are welcome
  • static: visualization of a single, static sample
  • [x] very basic PNG output
  • [x] PNG output with basic axes/labels using https://crates.io/crates/plotters
  • [ ] TODO fancy static output

• spectrum

  • dynamic: visualization of a single, static sample
    • [ ] TODO: code contributions are welcome
  • static: visualization of a single, static sample
    • [x] very basic PNG output with the option to highlight specific frequencies
    • [x] PNG output with basic axes/labels using https://crates.io/crates/plotters
    • [ ] TODO fancy static output

Example code

```rust use minimp3::{Decoder as Mp3Decoder, Frame as Mp3Frame, Error as Mp3Error}; use audiovisualizer::ChannelInterleavement; use audiovisualizer::Channels; use audiovisualizer::waveform::staticc::pngfile::visualize; use std::path::PathBuf; use std::fs::File;

/// Example that reads MP3 audio data and prints the waveform to a PNG file. fn main() { let mut path = PathBuf::new(); path.push("test/samples"); path.push("sample_1.mp3"); let mut decoder = Mp3Decoder::new(File::open(path).unwrap());

let mut lrlr_mp3_samples = vec![];
loop {
    match decoder.next_frame() {
        Ok(Mp3Frame { data: samples_of_frame, .. }) => {
            for sample in samples_of_frame {
                lrlr_mp3_samples.push(sample);
            }
        }
        Err(Mp3Error::Eof) => break,
        Err(e) => panic!("{:?}", e),
    }
}

// library function
visualize(
    &lrlr_mp3_samples,
    Channels::Stereo(ChannelInterleavement::LRLR),
    "src/test/out",
    "sample_1_waveform.png"
);

} ```