playSdWav object pitch shifting possible ?

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emmanuel63

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Hello,

Is it possible to change the pitch of the playSdWav (or playFlashRaw) object ? The idea would be to change the speed at which the audio samples are read, but I doubt it is as simple as that.

Could someone indicate me some documentation or ideas to dig in ?

Emmanuel
 
emmanuel63 said:
Hello,

Is it possible to change the pitch of the playSdWav (or playFlashRaw) object ? The idea would be to change the speed at which the audio samples are read, but I doubt it is as simple as that.

Could someone indicate me some documentation or ideas to dig in ?

Emmanuel
Click to expand...

For the SGTL5000 Audio Board I have a solution. But it changes the Samplerate for the whole library.
It just uses the SGTL in I2S Master Mode.
If you can live with that, I can upload it to Github.

This works with all ARM Teensies - from Teensy LC to 4.1
You'll need Teensyduino 1.54 Beta 6
 
... another, better, way is to add a resampler (with the needed filters) to the library.


Maybe search the forum. This was asked 100 times.. :)
 
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