Le 16/07/2020 à 14:18, Mark Brown a écrit :
On Wed, Jul 15, 2020 at 02:03:08PM -0700, Nicolin Chen wrote:
On Wed, Jul 15, 2020 at 03:05:19PM +0100, Mark Brown wrote:
On Tue, Jul 14, 2020 at 01:50:50PM -0700, Nicolin Chen wrote:
Thanks for the input. Fox i.MX6, I don't feel it would be that drastically different though. And both SSI1 and SSI2 can simply select the same root clock source to avoid that happen.
If you've got two radios that both need to sync to some radio derived frequency it gets a bit more entertaining.
I'm simply curious what could be a problem. Do you mind educating me a bit? And ASRC here isn't a radio but a sample rate converter working as a BE in DPCM setup, using radio-capture for example...
My understanding was that this application was using the ASRC to convert between the sample rates of two different radios - the rates may be nominaly the same but in practice different so the audio will glitch after a while when the clocks drift far enough apart.
That's part of the issues we had to solve, yes. The other part is more traditional sample rate conversion on an as-needed basis, as we can't assume which rate will be used (iPhone's use 16kHz, Android phones stick to 8kHz, and headsets can use both depending on their capabilities).