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some streaming (radio) sources generates distorted sound on armv6hf #5

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1. play e.g. http://sverigesradio.se/topsy/direkt/132-hi-mp3.m3u 
2. i get distorted output

A. Other channels from other providers seems to works fine, so does e.g my own 
stored flac or the sveriges radio mp3-podcasts 
all streaming channels from Swedish Radio yields these distorted results
B. This channel works fine on older and current squeezelite on e.g. x86-64 

What version of the product are you using? On what operating system?

tried a few versions - right now latest and greatest 0.7beta1  
(7d692085e40b66d49ae4894eef62fd001f16ce69)

Please provide any additional information below.

Running on a raspberry pi through an external DA converter (Beresford) on 
raspbian with hardfloat.

I can not really find the storage for older (binary) releases of this is that 
available somewhere ?

Original issue reported on code.google.com by enpon...@gmail.com on 25 Dec 2012 at 10:29

GoogleCodeExporter commented 9 years ago 
also the softfloat version show these symptoms...

Original comment by enpon...@gmail.com on 25 Dec 2012 at 1:07

GoogleCodeExporter commented 9 years ago 
Can you post the output of starting with "-d output=debug" added to the command 
line?

Original comment by trio...@btinternet.com on 25 Dec 2012 at 6:44

GoogleCodeExporter commented 9 years ago 
[20:58:10.013683] output_init:932 init output
[20:58:10.015371] output_init:935 outputbuf size: 3528000
[20:58:10.056916] output_init:954 output: front:CARD=CODEC,DEV=0 maxrate: 48000
[20:58:10.057689] output_init:966 unable to set output sched fifo: Operation 
not permitted
[20:58:10.067826] output_thread:326 open output device: front:CARD=CODEC,DEV=0
[20:58:10.072777] alsa_open:221 opened device front:CARD=CODEC,DEV=0 using 
format: S16_LE sample rate: 44100
[20:58:10.073320] alsa_open:265 buffer time: 20045 period count: 4 buffer size: 
884 period size: 221
[20:58:16.591905] output_thread:490 track start sample rate: 48000 replay_gain: 
0
[20:58:16.592203] output_thread:326 open output device: front:CARD=CODEC,DEV=0
[20:58:16.607738] alsa_open:221 opened device front:CARD=CODEC,DEV=0 using 
format: S16_LE sample rate: 48000
[20:58:16.608199] alsa_open:265 buffer time: 20000 period count: 4 buffer size: 
960 period size: 240

Original comment by ulrik...@gmail.com on 25 Dec 2012 at 8:59

GoogleCodeExporter commented 9 years ago 
previous comment was from me and noone else...

Original comment by enpon...@gmail.com on 25 Dec 2012 at 9:02

GoogleCodeExporter commented 9 years ago 
does 44100 work on this setting - the problem is only with 48000 sample rates?

what happens if you use -o plughw:CARD=CODEC

Original comment by trio...@btinternet.com on 25 Dec 2012 at 9:11

GoogleCodeExporter commented 9 years ago 
[20:58:10.013683] output_init:932 init output
[20:58:10.015371] output_init:935 outputbuf size: 3528000
[20:58:10.056916] output_init:954 output: front:CARD=CODEC,DEV=0 maxrate: 48000
[20:58:10.057689] output_init:966 unable to set output sched fifo: Operation 
not permitted
[20:58:10.067826] output_thread:326 open output device: front:CARD=CODEC,DEV=0
[20:58:10.072777] alsa_open:221 opened device front:CARD=CODEC,DEV=0 using 
format: S16_LE sample rate: 44100
[20:58:10.073320] alsa_open:265 buffer time: 20045 period count: 4 buffer size: 
884 period size: 221
[20:58:16.591905] output_thread:490 track start sample rate: 48000 replay_gain: 
0
[20:58:16.592203] output_thread:326 open output device: front:CARD=CODEC,DEV=0
[20:58:16.607738] alsa_open:221 opened device front:CARD=CODEC,DEV=0 using 
format: S16_LE sample rate: 48000
[20:58:16.608199] alsa_open:265 buffer time: 20000 period count: 4 buffer size: 
960 period size: 240
[21:24:22.849863] output_init:932 init output
[21:24:22.851649] output_init:935 outputbuf size: 3528000
[21:24:22.893660] output_init:954 output: front:CARD=CODEC,DEV=0 maxrate: 48000
[21:24:22.894386] output_init:966 unable to set output sched fifo: Operation 
not permitted
[21:24:22.897820] output_thread:326 open output device: front:CARD=CODEC,DEV=0
[21:24:22.904759] alsa_open:221 opened device front:CARD=CODEC,DEV=0 using forma
t: S16_LE sample rate: 44100
[21:24:22.905349] alsa_open:265 buffer time: 20045 period count: 4 buffer size: 
884 period size: 221
[21:36:20.511430] output_init:932 init output
[21:36:20.513025] output_init:935 outputbuf size: 3528000
[21:36:20.530157] output_init:954 output: plughw:CARD=CODEC maxrate: 192000
[21:36:20.530808] output_init:966 unable to set output sched fifo: Operation not
 permitted
[21:36:20.537775] output_thread:326 open output device: plughw:CARD=CODEC
[21:36:20.545850] alsa_open:221 opened device plughw:CARD=CODEC using format: S3
2_LE sample rate: 44100
[21:36:20.552045] alsa_open:265 buffer time: 20045 period count: 4 buffer size: 
884 period size: 221
[21:36:31.678050] output_thread:490 track start sample rate: 48000 replay_gain: 
0
[21:36:31.678363] output_thread:326 open output device: plughw:CARD=CODEC
[21:36:31.684931] alsa_open:221 opened device plughw:CARD=CODEC using format: 
S32_LE sample rate: 48000
[21:36:31.687254] alsa_open:265 buffer time: 20000 period count: 4 buffer size: 
960 period size: 240
[21:37:11.172729] output_thread:490 track start sample rate: 48000 replay_gain: 
0
[21:38:13.033843] output_init:932 init output
[21:38:13.035629] output_init:935 outputbuf size: 3528000
[21:38:13.051593] output_init:954 output: plughw:CARD=CODEC maxrate: 192000
[21:38:13.052301] output_init:966 unable to set output sched fifo: Operation 
not permitted
[21:38:13.057783] output_thread:326 open output device: plughw:CARD=CODEC
[21:38:13.067392] alsa_open:221 opened device plughw:CARD=CODEC using format: 
S32_LE sample rate: 44100
[21:38:13.072627] alsa_open:265 buffer time: 20045 period count: 4 buffer size: 
884 period size: 221
[21:38:23.593683] output_thread:490 track start sample rate: 48000 replay_gain: 
0
[21:38:23.594000] output_thread:326 open output device: plughw:CARD=CODEC
[21:38:23.600917] alsa_open:221 opened device plughw:CARD=CODEC using format: 
S32_LE sample rate: 48000
[21:38:23.603058] alsa_open:265 buffer time: 20000 period count: 4 buffer size: 
960 period size: 240

...... still distorted signal

Original comment by enpon...@gmail.com on 25 Dec 2012 at 9:41

GoogleCodeExporter commented 9 years ago 
i am truly sorry for disturbing the christmas celebrations (if you celebrate 
that of course...)

Original comment by enpon...@gmail.com on 25 Dec 2012 at 9:50

GoogleCodeExporter commented 9 years ago 
Hum - does the dac work with squeezelite on the other machine ok using 
hw:CARD=CODEC?  

Does it work ok on the default pi output device?  I wonder if this is related 
to the pi usb problems - 48000 needs higher data rate than 44100 but not by 
much.  Can you playback other 48000 material on the pi ok?

As a workaround you could compile your own squeezelite which forces the max 
sample rate to 44100 which would cause the server to resample.  Happy to 
provide more details if this is something you want to try...

Original comment by trio...@btinternet.com on 25 Dec 2012 at 9:53

GoogleCodeExporter commented 9 years ago 
ok i think that you definitely is onto something here. I have not had the time 
to move the DAC to the other machine yet (i'll do that when i have the time), 
but:

Playing the material through the default output device of the pi yields good 
audio also at 48000. I have been trying to read through the available material 
on the USB problems of the pi. Is it this one you are referring to ? 
https://github.com/raspberrypi/firmware/issues/19

thanks for caring despite this being a busy time of the year

Original comment by enpon...@gmail.com on 26 Dec 2012 at 8:32

GoogleCodeExporter commented 9 years ago 
Yes you have linked to the pi issues - it doesn't work at any frequency without 
breakup with my dac - a usb async 1.1 device.  Some people have success setting 
the usb port to usb full speed only.  I think you will find the config 
somewhere on here: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=23544

Original comment by trio...@btinternet.com on 26 Dec 2012 at 9:50

GoogleCodeExporter commented 9 years ago 
Can you confirm if this issue is still a problem.  There are still well know 
issues with Pi and many usb dacs, but some work ok.  I want to make sure we 
separate these issues from squeezelite issues.

Some dacs have been reported as working using the new -a ::16: option to force 
16 bit output from squeezelite.

Original comment by trio...@btinternet.com on 16 Jan 2013 at 10:58

GoogleCodeExporter commented 9 years ago 
have not tried that yet, but the problem persists with the latest and greatest 
version. Setting dwc_otg.speed=1 in /boot/cmdline does however do the trick for 
me, yielding good sound, i will investigate the "-a ::16:" variant as well.

Original comment by enpon...@gmail.com on 19 Jan 2013 at 10:12

GoogleCodeExporter commented 9 years ago 
If changing the usb bus speed resolves, then this is a Pi/usb issue and not an 
issue with squeezelite.  Some people have seen the -a ::16: option improve this 
- I believe it is due to reducing the bandwidth required as its using 16 not 24 
bits.

However will close this issue as it doesn't sound to be with squeezelite 
itself.  Please reopen or open a new one if you still see it is with 
squeezelite.

Original comment by trio...@btinternet.com on 19 Jan 2013 at 10:27