--
Wojtek



---------- Forwarded message ----------
From: Wojciech Bober <wojciech.bo...@gmail.com>
Date: 2010/10/26
Subject: Re: [Alsa-user] Can't play mp3 with mpg123, but wav with aplay works
To: Sergei Steshenko <steshenko_ser...@list.ru>


2010/10/26 Sergei Steshenko <steshenko_ser...@list.ru>:
> aplay -v -d plughw:0,0
>
> works, then the WAV file number of bits is compatible with with your
> card.

Correct me if I'm wrong, but from the output of aplay it looks like it
isn't compatible. See below.

The wave file is S16_LE, then the plug comes in and converts it from
S16_LE to S32_BE in order to play it on the slave device (hw:0,0)
which is S32_BE.

aplay -v -d plughw:0,0 take_file.wav
Code:
Playing WAVE 'take_file.wav' : Signed 16 bit Little Endian, Rate 44100
Hz, Stereo
Plug PCM: Linear conversion PCM (S32_BE)
Its setup is:
 stream       : PLAYBACK
 access       : RW_INTERLEAVED
 format       : S16_LE
 subformat    : STD
 channels     : 2
 rate         : 44100
 exact rate   : 44100 (44100/1)
 msbits       : 16
 buffer_size  : 22052
 period_size  : 5513
 period_time  : 125011
 tstamp_mode  : NONE
 period_step  : 1
 avail_min    : 5513
 period_event : 0
 start_threshold  : 22052
 stop_threshold   : 22052
 silence_threshold: 0
 silence_size : 0
 boundary     : 1445199872
Slave: Hardware PCM card 0 'Efika' device 0 subdevice 0
Its setup is:
 stream       : PLAYBACK
 access       : MMAP_INTERLEAVED
 format       : S32_BE
 subformat    : STD
 channels     : 2
 rate         : 44100
 exact rate   : 44100 (44100/1)
 msbits       : 32
 buffer_size  : 22052
 period_size  : 5513
 period_time  : 125011
 tstamp_mode  : NONE
 period_step  : 1
 avail_min    : 5513
 period_event : 0
 start_threshold  : 22052
 stop_threshold   : 22052
 silence_threshold: 0
 silence_size : 0
 boundary     : 1445199872
 appl_ptr     : 0
 hw_ptr       : 0

>
> What does
>
> file take_file.wav
>
> show ?
>
> ...
>
> How about
>
> "--reopen           force close/open on audiodevice"
>
> in mpg123 ?

I'll try that later on today, and let you know.

--
Wojtek

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