Edited by paddy, 04 June 2010 - 12:19 PM.
Bad Sound Quality
Started by
HackModford
, Jun 04 2010 01:57 AM
209 replies to this topic
#16
paddy
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Posted 04 June 2010 - 12:15 PM
My pandora has never crackled yet ,i find the sound perfect ,mabe a bug in the os or the media player but if it's at the default like mine is there should not be a problem yes ? could it not then just be the hardware.
#17
conso
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Posted 04 June 2010 - 12:38 PM
open the mixer, in the options, there should be a dialogue where you can select channels like pcm to be visible.
#18
HackModford
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Posted 04 June 2010 - 12:54 PM
Nope nothing...
#19
senorgomez
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Posted 04 June 2010 - 01:51 PM
Nothing: PCM is not an available option in mixer
Nothing: I did that, and my problem persists
Which one?
Nothing: I did that, and my problem persists
Which one?
#20
HackModford
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Posted 04 June 2010 - 02:42 PM
So I'm looking online and it seems that the main problem with the pandora is no adjustable PCM channel... bahhhh...
#21
htl2001
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Posted 04 June 2010 - 04:23 PM
ALSA is a pain to get it to run properly.
However, most of the times, it should work just fine.
WiFi disabled? Sometimes WiFi can interfere with audio.
What apps have that problem? All of them?
I don't have any sound problems on my Pandora except for VERY slight crackling in MPlayer (which goes away when I change the buffersize)
Has OSS4 been tried by anyone?
#22
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Posted 04 June 2010 - 04:46 PM
I've also disabled wifi... no luck. 
#23
HackModford
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Posted 04 June 2010 - 05:30 PM
I tried setting the buffers to ridiculously high amounts... didn't change. I'm restarting to see if that will make the changes "come into effect"
#24
HackModford
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Posted 04 June 2010 - 05:31 PM
Nope no change...
#25
Exophase
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Posted 04 June 2010 - 06:51 PM
Has OSS4 been tried by anyone?
I wish
#26
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Posted 04 June 2010 - 07:43 PM
What's OSS4?
#28
zapman
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Posted 04 June 2010 - 11:10 PM
Hi there!
I cannot see your video file but from what you say it seems I'm not the only one with this crackling sound problem. My pandora I got today has the same problem.. but I may got some hints for you:
With my pandora came 2 other pandoras that play sound flawlessly, always. I played around with the sound and it seems that it's a random chance if sound works or not with my Pandora: when running a webradio station via Exaile, the sound crackles and seems like 200% too loud and therefor distored. After I cancel the radio stream and reconnect right after, there is a chance that the sound playback suddely works! The same thing is true for ZSNES emulator and super Mario World: after several retries (kill emulator and restart emulator) the sound playback works. After restarting again it may not work anymore so you'll have to retry until the sound is ok again.
In the meantime I didn't change anything: neither volume nor any other settings!
It seems that there is a problem with some kind of sound initialization? When sound finally works nicely it stays that way perfectly until you quit your program and run another program with sound. Than everything start anew.
So: it is NO SOLUTION to just turn down the sound, the crackling is reduced, but so is the sound.
Is there a way to reinstall the sound drivers maybe?
I cannot see your video file but from what you say it seems I'm not the only one with this crackling sound problem. My pandora I got today has the same problem.. but I may got some hints for you:
With my pandora came 2 other pandoras that play sound flawlessly, always. I played around with the sound and it seems that it's a random chance if sound works or not with my Pandora: when running a webradio station via Exaile, the sound crackles and seems like 200% too loud and therefor distored. After I cancel the radio stream and reconnect right after, there is a chance that the sound playback suddely works! The same thing is true for ZSNES emulator and super Mario World: after several retries (kill emulator and restart emulator) the sound playback works. After restarting again it may not work anymore so you'll have to retry until the sound is ok again.
In the meantime I didn't change anything: neither volume nor any other settings!
It seems that there is a problem with some kind of sound initialization? When sound finally works nicely it stays that way perfectly until you quit your program and run another program with sound. Than everything start anew.
So: it is NO SOLUTION to just turn down the sound, the crackling is reduced, but so is the sound.
Is there a way to reinstall the sound drivers maybe?
#29
torpor
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Posted 04 June 2010 - 11:22 PM
I have been investigating the issue all night, and my conclusion is that what we are seeing with sound (and sometimes nub parameter) settings changing and getting in 'inoperable' states, is due to a bit of beta/buggy software on the part of the porters .. so far.
It seems like not properly closing things seems to upset the Pandora nub and audio driver systems, the use of which is currently still being properly explored. I know for sure its possible to get the nubs all out of shape and leave the unusable .. in software .. so in my opinion things are just not quite robust enough yet.
This will change.
The thing is we have to really consider ourselves at BETA level with the OS .. as there has been a dirth of hardware running the released OS, very little has been properly tested.
The point is, give it time. We can all work on sorting out things and reporting the problems so things improve.
It seems like not properly closing things seems to upset the Pandora nub and audio driver systems, the use of which is currently still being properly explored. I know for sure its possible to get the nubs all out of shape and leave the unusable .. in software .. so in my opinion things are just not quite robust enough yet.
This will change.
The thing is we have to really consider ourselves at BETA level with the OS .. as there has been a dirth of hardware running the released OS, very little has been properly tested.
The point is, give it time. We can all work on sorting out things and reporting the problems so things improve.
#30
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Posted 04 June 2010 - 11:38 PM
The audio in that video definitely sounds like clipping. The lower and louder sounds in the music are crackly, but the high pitched and softer sounds are not.
You should be able to load the alsa mixer and just keep turning down the volume until it is good again. I don't understand why this hasn't worked for you.
You should be able to load the alsa mixer and just keep turning down the volume until it is good again. I don't understand why this hasn't worked for you.
