LabChirp is a powerful, free, easy-to-use program. With it you can create sound effects for whatever you like, with a lot of precision and control.
- Multiple channels: Up to eight individual channels. All or any element of a channel can be copied to another.
- Modulation: For vibrato and tremolo (pulsating variation in pitch and volume).
- Envelopes: To shape everything the way you want it.
- Waveforms: Make your own custom waveforms, or use any of the standard ones (sine, triangle, sawtooth, square, noise).
- Customizable randomizer: For the lazy sound designer.