WAV Files in C

This library is meant to be a dead simple header-only C library for working with audio buffers and files in WAV format. Has support for stereo, custom sample rate, up to 32 bit depth.

Just download wav.h to use in your project.

Basic Example

#include "wav.h"

#define CHANNELS (2)
#define SAMPLE_RATE (44100)
#define BIT_DEPTH (24)

int main() {
    // Init library context
    wav_init(CHANNELS, SAMPLE_RATE, BIT_DEPTH);

    // Create a byte array for holding the audio buffer
    const size_t total_len = bytes_from_seconds(10);
    uint8_t buffer[total_len] = {};

    // Write data to the buffer
    // This example just plays clicking, but you can see
    // how to write to the buffer
    int16_t sample = 6969;
    const uint32_t samples_to_write = samples_from_seconds(3);
    for (uint32_t i = 0; i < samples_to_write; i++) {
        write_wav_sample(buffer, i, sample);
        sample += 1;
    }

    // Write to file
    write_wav_file("audio.wav", buffer, samples_to_write);
}

Also check out the examples/ folder.

Resources

• https://docs.fileformat.com/audio/wav/