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).
