CODEWITHSUNDEEP
javascriptaudiosoundmanager2
Dany Joumaa
Dany Joumaa

Reputation: 2040

Playing test tones in an Javascript audio app for the web

For a small web app I'm making, I need to output sinusoidal test tones for client-side audio playback.

The thing is, I can't seem to find a way to do it in javascript without downloading and looping pre-rendered WAV files.

Is there a standards compliant method out there of outputting test tones? Or must I build the test tones on my own and use something like this to play back the files?

(I would much prefer to generate the test tones real-time so that I can generate a number of frequencies beyond the limited gamut of frequencies available to me with a sample set of WAV files.)

Upvotes: 0

Views: 470

Answers (1)

Brad
Brad

Reputation: 163232

There is a way of doing this by using the data URI scheme, but it is a bit of a hack, and probably isn't very efficient. You should also keep in mind of length limits for the data URI.

See http://ajaxian.com/archives/generating-and-playing-sound-in-javascript and http://softwareas.com/offline-sound-no-flash-no-file.

Upvotes: 1

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