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Hi !
For a new project I need change sampling rate to 32 ksps for USB Audio stream and codec WM8731 in CY8CKIT-046 kit.
Change configure USBFS AUDIO descriptor and change source files did not help, where is the error.
The default sample rate of 44.1 kHz, 32 kHz cannot be selected.
Ask for help!
Solved! Go to Solution.
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PSoC 4 Architecture
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I seems you are using 24.576 MHz for 32 kHz, but please check this article:
https://www.electronicdesign.com/embedded/achieving-bit-perfect-usb-audio
I think you need integral multiple of 4.096 MHz for MCLK at 32 kHz.
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You need to change the USB descriptor to show up as 32 kHz. Note that you might also change the clock settings for the I2s component to sample at 32 kHz.
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Have you tried to uninstall and reinstall the driver?
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standard Windows 7 driver for usb audio device, codec alc887/
uninstall and reinstall the driver: does not work
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I seems you are using 24.576 MHz for 32 kHz, but please check this article:
https://www.electronicdesign.com/embedded/achieving-bit-perfect-usb-audio
I think you need integral multiple of 4.096 MHz for MCLK at 32 kHz.
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thanks for the link, I read