Re: [alsa-devel] Changing the sample rate/channels of an already opened PCM stream

Hello Clemens,

* Clemens Ladisch cladisch@fastmail.net wrote:

Ed Schouten wrote:

...

I have been trying to get the device to reset so I can change the sample rate, but for some reason, it just gets ignored. Can someone explain me how it's possible to reset the sample rate after preparing the handle?

The various snd_pcm_hw_params_set_xxx() functions choose some value for a parameter that has not yet been set, but they do not change a parameter once it has been set. To reset all parameters in a hw_params container, call snd_pcm_hw_params_any() again.

Calling snd_pcm_hw_params_any() before changing the sample rate did the trick. Thanks a lot! :-)

Yours,