Random WebAudio Demos and Tests

Basic Oscillator, Convolver, and Decoding Tests

• osc.html
• View oscillator waveforms
• Test for convolving two square waves (short) using 0.1 sec pulses rendered for 1 sec.
• Test for convolving two square waves using 1 sec pulses rendered for 3 sec.
• test-plot-audio.html, plots several different types of audio files.
• test-plot-wav.html, plots just one wav file
• Time the speed of the convolver node (1s kernel)
• Time the speed of the convolver node (128-frame kernel)

Miscellaneous Tests

• Test to see if denormals are flushed to zero. Currently the test is set so that it always fails so that the last non-zero value is printed. For chrome with denormals flushed to zero, the last non-zero value should be at index 139. When denormals are not flushed, the last index is larger, possibly up to 200 or more.
• Test ogg file decoding, for android. (See crbug 382271.)
• Test decoding time. Just a simple test to see how long it takes decodeAudioData to decode an m4a file.
• Biquad automation test. This is a simple test for biquad automation to demonstrate a-rate automation
• copyFromChannel and copyToChannel. This tests copyFromChannel and copyToChannel when arrays have different lengths.

ScriptProcessorNode Tests

• Simple test to see if ScriptProcessorNodes leak memory
• Simple tests of the behavior of ScriptProcessorNodes