How to increase ASRC channel with cs42888 codec on sabre-AI ?

jackeyko — Sat, 27 Oct 2018 09:30:29 GMT

Hi NXP,

I would like to increase ASRC channel of CS42888 codec on Sabre-AI board?

Currently, only stereo(input, ouput -2 chanels) are applied on HIFI-ASRC-FE .

[sound device]

--------------------------------------------------------------------------------------------

card 0: cs42888audio [cs42888-audio], device 0: HiFi cs42888-0 []
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: cs42888audio [cs42888-audio], device 1: HiFi-ASRC-FE (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0

--------------------------------------------------------------------------------------------

The ASRC of I.MX6 support up to 10 channel in i.MX_Linux_Reference_Manual.pdf as below.

29.2 Introduction
The Asynchronous Sample Rate Converter (ASRC) converts the sampling rate of a signal
to a signal of different sampling rate. The ASRC supports concurrent sample rate
conversion of up to 10 channels. The sample rate conversion of each channel is
associated to a pair of incoming and outgoing sampling rates. The ASRC supports up to
three sampling rate pairs simultaneously.

Thanks,

Jackey

Re: How to increase ASRC channel with cs42888 codec on sabre-AI ?

art — Wed, 31 Oct 2018 12:33:36 GMT

Generally, please follow the Section 7.2 of the attached document.

Have a great day,
Artur

i.MX ProcessorsのトピックRe: How to increase ASRC channel with cs42888 codec on sabre-AI ?

How to increase ASRC channel with cs42888 codec on sabre-AI ?

Re: How to increase ASRC channel with cs42888 codec on sabre-AI ?