[alsa-devel] about pop chime on pcm api
Yang, Xiaotao (X.)
xyang25 at visteon.com
Fri Aug 30 10:31:25 CEST 2019
Hi:
Why should I call api<snd_pcm_close()> between the interval if I want to play a wav file two times repeatly, Otherwise pop chime occurs?
Eg: (fake code as follows):
Following codes works good.
Pcm.open();//open pcm device
Pcm.play(demo.wav);//set parameter and call snd_pcm_writei() to play
Pcm.close();//close pcm device
Pcm.open();
Pcm.play(demo.wav);
Pcm.close();
But following codes works with pop chime
Pcm.open();
Pcm.play(demo.wav);
Pcm.play(demo.wav);
Pcm.close();
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