WavForge
Copyright (c) sk89q <http://sk89q.therisenrealm.com>

Requirements
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* PHP 5.0 or later

Introduction
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WavForge is a proof-of-concept class that generates some waveforms and
outputs PCM WAV files. It's also a bit slow, but this is only a proof
of concept demo.

The original version was written in 2004, but WavForge was updated in
2009 with a few more features, PHP 5 support, and cleaner code. However,
the interface has changed significantly.