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Reverberator

A simple reverb library written using the basic principle that reverb's just a ton of slightly different delays!

Stuff

  • Reverberator() - Initializes a Reverberator object. The keywords preset, reflections, size, length, dry, wet and predelay can all be specified as arguments!
  • set_preset(preset, sample_rate) - Sets the preset. The sample rate is required to achieve a consistent predelay. The list of available presets is:
    • small_room, medium_room, large_room, small_hall, medium_hall, large_hall, church, arena, dampened
  • get_crunched_wave(wave_file) - Converts the wave to an "object" that can be used by Reverberator (supports 8-bit, 16-bit and 24-bit). The "object" will be referred to as a sound for convenience, and is actually a dict consisting of:
    • "bytes" - The converted bytes from -32768 to 32767, regardless of bit depth
    • "sample_rate" - you work it out
  • get_processed_bytes(sound) - Supplied a sound, this will return one in the same format, but processed through the specified reverb! clip and normalize can be specified as optional arguments.
  • save(sound, filename) - This will save the specified sound (ssss) to a wave file.

Basic usage

import reverberator
import wave

reverb = reverberator.Reverberator()

wave_crunched = reverb.get_crunched_wave("input.wav")
reverb.set_preset("small_room", wave_crunched["sample_rate"])
wave_processed = reverb.get_processed_bytes(wave_crunched, normalize=True)
reverb.save(wave_processed, "output.wav")

Plans

I planned to get real-time reverb working (the whole reason I made it into a library), but unfortunately it's extremely slow and basically unusable for that purpose. I'd love to figure it out one day!