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  #1  
Old 20th January 2007, 10:34 PM
yegor yegor is offline
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Default jointstereo is off.... sounds horrible (high pitched clipping)

I got the Motorolla BT headphones, paired them. With jointstereo = 1, i got mono sound, but there was no high pitched clipping. I disabled it, and set the quality to "exellent" via the hermes tweak program. I am getting stereo, but Im also getting very high pitched clipping sound, which makes any song virtually un-listenable due to the high pitched noise on the high notes. I also tried applying the reg values seen here: http://forum.xda-developers.com/showthread.php?t=284974 with no apparent result.
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  #2  
Old 21st January 2007, 12:58 AM
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anonimo anonimo is offline
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I am using a SonyEricsson stereo BT headset and the sound is reasonably good. The only thing I tweaked is that I set the jointstereo key to 0.
Try to find the right combination of volume in both devices, it might improve things... Clipping could be in your headphones because the signal from the Trinity is too high?
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Old 21st January 2007, 08:51 AM
yegor yegor is offline
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No that wont/didnt help. Its there even at the lowest sound setting. Its really noticable on about 70% of the songs, the other 30% are more or less ok. I tried removing higher frequences via an EQ in TCPMP, but the clipping is present on all frequencies.

The headset is totally useless for skype as well. Its so choppy, you cant understand anything.

Why is trash like this released?
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Old 21st January 2007, 09:07 AM
golemgolem golemgolem is offline
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I have the very same problem with iTech S35 headset...

No way to find a right combination of BitPool value an MaxBitPool value...

The problem is the MS BT stack. In my previous PDA Magician I installed Widcomm BT stack whit excellent results.

Now I'm waiting for the Widcomm BT stack development, hope to solve the problem.

Look at Hermes forum. Superdave is working on it...
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Old 21st January 2007, 09:52 AM
yegor yegor is offline
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Im thinking of getting the Jabra headphones, because people claimed that they have no high pitched noise.
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Old 24th January 2007, 11:16 AM
Menneisyys Menneisyys is offline
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Tested (I have loads of other A2DP devices and a high-quality A2DP heapdhone - the Plantronics Pulsar 590A) the Trinity in stereo mode instead of the default mono. Awful, in no way better than AKU2...
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Old 24th January 2007, 03:47 PM
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neofix neofix is offline
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Trying to use the DS-970 from SE, but when setting the joint stereo to 0, the clipping comes, unless I use bitpool as low as 30, and the sound is then terrible! *argh* And with joint stereo, the highest bitpool I can use is 34, more then this and it starts to skip... *argh*

Tried almost everything, but I can't get it to stream out full stereo! *argh argh*

[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\WaveDev]
Priority256=149
"IClass"="{A32942B7-920C-486b-B0E6-92A702A99B35}"
"Order"=0
"Index"=1
"Dll"="wavedev.dll"
"Prefix"="WAV"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Bluetooth\A2 DP\Settings
UseJointStereo=1
MaxSupportedBitPool=34


[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Bluetooth\Au dioGateway]"Capability"=37
"BTAGExtModule"="BTAGExt.dll"
"SupportCLI"=0
"BTAGPBModule"="\Windows\BthAGPhonebook.dll"
"NoRoleSwitch"=1
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HTC P3600 NOR
ROM: 1.16.409.2
Date: 10/24/06
Radioversion: 1.22.01.11
Protocol: 32.52.7020.01H
ExtRom: 1.16.409.101
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  #8  
Old 25th January 2007, 10:39 PM
mihaig mihaig is offline
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Quote:
Originally Posted by Menneisyys View Post
Tested (I have loads of other A2DP devices and a high-quality A2DP heapdhone - the Plantronics Pulsar 590A) the Trinity in stereo mode instead of the default mono. Awful, in no way better than AKU2...
I also have 590A. After manually setting joint stereo to 0 i got stereo but not a very good quality sound plus occasionally skip mainly when using headset buttons.

Today I did a hard reset and installed fit4cat hermes tweaks program. I enabled stereo, set the sound to Excellent, did a soft reset and... the sound is great, no more skipping. Much better sound quality than with the joint stereo hack alone.

Still not as good as the mp3 player on my se p900 but getting closer.

update: 5-6 hours of continuous music listening until now and still no problem. hermes tweak program did a good job for me

Last edited by mihaig; 26th January 2007 at 10:09 AM.. Reason: update
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  #9  
Old 26th January 2007, 07:24 PM
yegor yegor is offline
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Skipping problem is easily fixed, while the high pitched clipping is not.

Its horrible.
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  #10  
Old 26th January 2007, 08:14 PM
mihaig mihaig is offline
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Your problem is related to the headset you're using or maybe software version. I have no pitching sound issues.
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