Clemens, Ladies and Gentlemen, Date: Mon, 16 Dec 2019 16:41:02 +0100 From: Clemens Ladisch via Alsa-user <alsa-user@xxxxxxxxxxxxxxxxxxxxx> Subject: Re: a mono phone interface What is the output when you add -v to the aplay command line? If you still have the old Centos, is there any difference between the working and broken -v outputs? I got back to the old system and compared the -v output from Centos-6 with the one from Centos-8. A diff shows only the "boundary:" values differ: 26c26 < boundary : 6755399441055744000 --- > boundary : 1572864000 49c49 < boundary : 9007199254740992000 --- > boundary : 2097152000 with the larger values being from Centos-8. I attach the output from centos-8. Hope that helps, AG -- ---------------------------------------------------------------------- Alfred Ganz alfred-ganz:at:agci.com AG Consulting (203) 624-9667 440 Prospect Street # 11 New Haven, CT 06511 ----------------------------------------------------------------------
Playing WAVE '/usr/share/sounds/alsa/Front_Center.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono Plug PCM: Rate conversion PCM (8000, sformat=S16_LE) Converter: linear-interpolation Protocol version: 10002 Its setup is: stream : PLAYBACK access : RW_INTERLEAVED format : S16_LE subformat : STD channels : 1 rate : 48000 exact rate : 48000 (48000/1) msbits : 16 buffer_size : 24000 period_size : 6000 period_time : 125000 tstamp_mode : NONE tstamp_type : MONOTONIC period_step : 1 avail_min : 6000 period_event : 0 start_threshold : 24000 stop_threshold : 24000 silence_threshold: 0 silence_size : 0 boundary : 6755399441055744000 Slave: Hardware PCM card 1 'USB Device 0x4b4:0x303' device 0 subdevice 0 Its setup is: stream : PLAYBACK access : MMAP_INTERLEAVED format : S16_LE subformat : STD channels : 1 rate : 8000 exact rate : 8000 (8000/1) msbits : 16 buffer_size : 4000 period_size : 1000 period_time : 125000 tstamp_mode : NONE tstamp_type : MONOTONIC period_step : 1 avail_min : 1000 period_event : 0 start_threshold : 4000 stop_threshold : 4000 silence_threshold: 0 silence_size : 0 boundary : 9007199254740992000 appl_ptr : 0 hw_ptr : 0
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