Re: [alsa-devel] Question about Conversion to S24_LE from S24_3LE

Tan, Seng Kai wrote:

I am facing similar problem like this issue, hope to get your advice. http://mailman.alsa-project.org/pipermail/alsa-devel/2012-August/054241.html

And the answer is the same.

I try to turn on S24_LE support for HDMI Audio using below patch.

Your hardware does not support S24_LE.

24-bit samples use the S32_LE format (unless you have very exotic hardware, but HDA isn't).

Back end S24_LE : 0x00123456(in 4bytes, MSB 0 padding)

This is how S24_LE works.

Can you advice how to tell the alsa plugin to pad in LSB instead of MSB?

Use S32_LE.

Regards, Clemens