Experiencing audio clarity issues while using the WM8904 audio codec

[Tharun123]

Hello everyone,

I am currently using the WM8904 audio codec in my project. The audio is stored in external flash memory, and I am reading it in chunks of 1024 bytes at a time. The audio format is 16-bit WAV with an 8000 Hz sample rate.

For playback, we are using a mono speaker. I have attached the schematic of our codec for reference.

Issue: The audio output is not clear. I have verified the data being read from the flash, and it matches the stored data.

I would like to know:

1. What audio formats (sample rate, bit width, clock configuration, etc.) are supported by the WM8904 codec?
2. How can I ensure proper reading and playback of audio from the flash memory?

Thank you.

[Pavel_Hernandez]

Hello, I recommend review the examples on the SDK, there are some different types of application, maybe that could help you.

The 8khz is too low on quality, I recommend review the rate of the example.

Pavel_Hernandez_0-1733775679018.png

Pavel_Hernandez_1-1733775707004.png

Best regards,
Pavel