I installed the old windows EMUU_PCAppDrvFw_L6_1_30_07 which updates (in
this case reverted to an older version) the firmware on the card.
The distortion characteristics on arm changed slightly, which points to a
firmware issue.
Honestly, I'm a bit at a loss as to why for certain cards there's firmware
loaded - and why by the kernel - and not for others, as seems to be the
case with the 0202.
Any thoughts?
2016-01-28 18:14 GMT+01:00 P Z <pzkm...@gmail.com>:
> Odd, the VU meter is animating, but no sound. A few times, aplay freezed
> after 1-2 seconds. Arecord also doesn't work.
>
>
> bla@ubuntu:~$ aplay -D plughw:1,0 Desktop/Jamiroquai44100-24.wav -V mono
> -v
> Playing WAVE 'Desktop/Jamiroquai44100-24.wav' : Signed 24 bit Little
> Endian in 3bytes, Rate 44100 Hz, Stereo
> Plug PCM: Hardware PCM card 1 'E-MU 0202 | USB' device 0 subdevice 0
> Its setup is:
> stream : PLAYBACK
> access : RW_INTERLEAVED
> format : S24_3LE
> subformat : STD
> channels : 2
> rate : 44100
> exact rate : 44100 (44100/1)
> msbits : 24
> buffer_size : 22050
> period_size : 5513
> period_time : 125011
> tstamp_mode : NONE
> period_step : 1
> avail_min : 5513
> period_event : 0
> start_threshold : 22050
> stop_threshold : 22050
> silence_threshold: 0
> silence_size : 0
> boundary : 6206523236469964800
> appl_ptr : 0
> hw_ptr : 0
> #####+ | 08%
>
> amixer sset 'PCM' 70%
> Simple mixer control 'PCM',0
> Capabilities: pvolume pswitch pswitch-joined
> Playback channels: Front Left - Front Right
> Limits: Playback 0 - 63
> Mono:
> Front Left: Playback 45 [71%] [33.00dB] [on]
> Front Right: Playback 45 [71%] [33.00dB] [on]
>
> amixer -c1 scontents
> Simple mixer control 'PCM',0
> Capabilities: pvolume pswitch pswitch-joined
> Playback channels: Front Left - Front Right
> Limits: Playback 0 - 200
> Mono:
> Front Left: Playback 176 [88%] [-12.00dB] [on]
> Front Right: Playback 176 [88%] [-12.00dB] [on]
> Simple mixer control 'Clock rate Selector',0
> Capabilities: volume volume-joined
> Playback channels: Mono
> Capture channels: Mono
> Limits: 0 - 5
> Mono: 0 [0%]
>
> bla@ubuntu:~$ amixer -c1 controls
> numid=3,iface=MIXER,name='PCM Playback Switch'
> numid=4,iface=MIXER,name='PCM Playback Volume'
> numid=5,iface=MIXER,name='Clock rate Selector'
> numid=2,iface=PCM,name='Capture Channel Map'
> numid=1,iface=PCM,name='Playback Channel Map'
>
>
> 2016-01-28 9:22 GMT+01:00 Clemens Ladisch <cladi...@googlemail.com>:
>
>> P Z wrote:
>> > Trying to ddx on the sunxi side, judging from the test soundfile and
>> > given the fact that recording works, how likely is it that this is
>> > a power supply issue
>>
>> Pretty much impossible.
>>
>> > aplay -D plughw:1,0 /home/bla/Desktop/Jamiroquai44100-24.wav
>>
>> So what happens?
>>
>> It might be possible that some mixer controls are not set correctly.
>> Show the output of "amixer -c1 scontents".
>>
>>
>> Regards,
>> Clemens
>>
>
>
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