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[Issue][5/16] Sound popping/crackling with small fix

OP Zacisblack

28th April 2011, 06:41 AM   |  #1  
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Since recent updates I've been getting popping in audio. This ONLY occurs when I touch the screen. For example when I have a song on and I swype I can hear popping as I move my finger across the screen. Is anyone else having this issue? Using voodoo control plus with version 8 driver.

EDIT: Emailed supercurio. He is working on a fix and I am testing it for him. The only tweak he said he found so far to improve this is using the command "echo 0 > /sys/module/printk/parameters/time" in adb shell. He said it should improve noise popping and he was exactly right. The popping is still noticeable but has much improved! He said he will consider integrating it in a future version.

EDIT (5/16): To be clear, Supercurio says this is a flaw in the Froyo kernel whether stock or not. I recently odined back to DL09 to do OTA to EB03 and still have some issues. Being on complete stock, the issue is not nearly as bad and doesn't occur when I interact with the screen. The issue of sound popping occurs about every 8-12 seconds when playing back audio of any kind. Here is one of his exact messages in our email conversation.

"François SIMOND - supercurio to me
show details Apr 28
Hi Zachary!

This is an issue with the [Froyo]* kernel itself, which is poorly implemented.
Gingerbread kernels are not affected anymore. Is it really bad in ED01 ?"

* Was added in for context.

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Last edited by Zacisblack; 16th May 2011 at 09:51 PM.
28th April 2011, 06:45 AM   |  #2  
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Quote:
Originally Posted by Zacisblack

Since recent updates I've been getting popping in music. This ONLY occurs when I touch the screen. For example when I have a song on and I swype I can hear popping as I move my finger across the screen. Is anyone else having this issue? Using voodoo control plus with version 8 driver.

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Yeah, same here! I noticed it as soon as I got set up cause I use my fassy religiously as an mp3 player!
28th April 2011, 06:48 AM   |  #3  
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Quote:
Originally Posted by Jrex

Yeah, same here! I noticed it as soon as I got set up cause I use my fassy religiously as an mp3 player!

Glad I'm not the only one!

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28th April 2011, 06:50 AM   |  #4  
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Quote:
Originally Posted by Zacisblack

Since recent updates I've been getting popping in music. This ONLY occurs when I touch the screen. For example when I have a song on and I swype I can hear popping as I move my finger across the screen. Is anyone else having this issue? Using voodoo control plus with version 8 driver.

Sent from my SCH-I500 using XDA Premium App

What rom/kernel?

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28th April 2011, 06:54 AM   |  #5  
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Community Rom and the included rom by nemesis2all. I just reverted from jt's alpha gingerbread and it happened on that too. Dont think it's a ROM issue but rather a voodoo sound driver issue. Just seeing if it's just me or if others are also noticing.

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28th April 2011, 06:58 AM   |  #6  
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Yeah I'd revert back to the previous kernel with voodoo 7.

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28th April 2011, 07:15 PM   |  #7  
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I too am having the same problem and it's driving me nuts! It's not only when you touch the screen, but whenever the processor load ramps up, so it's pretty much whenever the phone does any thinking. Very annoying.
28th April 2011, 07:45 PM   |  #8  
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Doesn't happen for me (imnuts -50). But I'm using MortPlayer, not the stock Samsung.

If you're on the nemesis kernel, try changing some of the enabled clockspeeds?
28th April 2011, 07:57 PM   |  #9  
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Doesnt help. This also happened when I was on CM7 when I wasnt on nemesis2all's kernel. I realized this didnt happen until voodoo driver version 8. I emailed project voodoo to see what they have to say.

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28th April 2011, 08:38 PM   |  #10  
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Have you checked the scheduler you are using? It almost sounds like the phone is decreasing the priority devoted to decoding the mp3 too much or it is giving too much cpu to the ui. Drivers

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