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Problem about Configure Audio Interface to DSP Mode

I would like to configure the PurePath Wireless audio interface to DSP mode, using the PurePath Wireless Configurator 1.4.2.38775.

I have changed the "Audio Interface" to the following settings:

Custom Setup -> Enabled

Interface Format -> DSP

Exact Resolution -> 16

Clock Source -> Internal with MCLK

BCLK Frequency -> WCLK x 64

MCLK -> WCLK x 256

And, I have changed the "Audio Device Customization" from "w 30 1B 00" to "w 30 1B 40".

But I found that incorrect sound output is received in the slave device. However, when I changed the audio interface to I2S, the device works fine and sound output is correct.

Could anyone help telling me how to configure the audio interface to DSP mode correctly?

Thank you very much!~