AudioTest generates audio test signals and can save audio test signals as audio files.

• Wave types: Sine wave, Triangle wave, Sawtooth wave, Square wave, Pulse wave, Anti-aliased Sawtooth wave, Anti-aliased Square wave, Anti-aliased Pulse wave, White noise, Pink noise, Brown noise, and Gaussian noise.
• Frequency: fixed, linear sweep, and logarithmic sweep.
• Level: fixed, linear sweep, and logarithmic sweep.
• Phase shift: +/-180 degrees.
• Sample rates: 11.025k, 22.05k, 32k, 44.1k, 48k, 88.2k, 96k, 176.4k, and 192k.
• Bit depths: 8-bit, 16-bit, 24-bit integers, and 32-bit float.
• Channels: mono, stereo, left, and right.
• Level meter: peak, RMS (root-mean-square), and average.
• Scroll Wheel support with text fields and sliders.
• Keyboard Shortcuts for various parameters.
• Undo/Redo support for parameter changes.
• AppleScript scripting.