motorola ht820 sound quality issue! - JAMin, XDA Neo, S200 General

hello everyone,
i FINALLY got my bt headset working and now im able to listen to mp3 in stereo quality
but the quality is a really big disappointment! During the playback there is some kind of a noise in the background, its hard to describe how it sounds, but its aweful certainly and makes the listening to music painful! it only happens in certain sound frequencys, especially those where there is a human voice.
I have no problem with bass, or instrumentals only. The hardware buttons for forward / back and so on works fine, there is some stuttering from time to time, i can bear that. But that background noise is unbearable.
What might be the problem? did I forget to install some protocol? Or does the motorola just suck? (hardware problem?)
I would be glad if someone can come up with an answer!

ok,
let me clarify about the noise: its a high frequent sharp sound, just ANNOYING!

Dumb question : you have checked the audio files are otherwise good ? It sounds similar to a 'cooked' mp3 file.

hey, i did check the audio files, and they are fine!

I just found out that it is a common problem having the high pitch noise while listening to mp3 via bluetooth.
After reading this:
http://forum.xda-developers.com/showthread.php?p=968791#post968791
I tried out the registry hacks and it DID NOT help! Whenever I tried to add the key:
HKLM/SOFTWARE/Microsoft/Bluetooth/AD2P/Settings/BitPool
(Dword: 60)(Default is 30)
it just automatically disappeared after a softreset, the key isnt there by default.
Im using the lvsw aku 2.3.1 rom.
What can I do? Please HELP!
ps, i found out if i turn down the treble, it reduces the high pitches. but that cant be the real deal! it must be some other way!?
update:
i have installed the aku33_a2dp.cab provided by "joe_dude" and change the registry values like usejointstereo=0
but nothing works, still got this annoying high pitch noise...

Hi savant,
I am using the ht820 with a imate jamin, and have no problem at all. i followed the procedure laid out in the following thread:
http://forum.xda-developers.com/showthread.php?t=263745.
Make sure that you read the complete thread as there is a cab file that edits the registry for you. I tried it and mine worked flawlessly the first time. I am using pocketmusic as my mp3 player.

hello cvrbit!
thank you for replying, the link you gave me is about the installation of a2dp protocoll on the prophet, which I already did.
I have double checked my registry and all the necessary keys are there. I even use a newer a2dp protocoll from the acu 3.3
I searched everywhere on google and in this forum it seems there is no real solution to that.
It does seem that some HT820 user have no high pitch noise issue and some do, I dont know why.

Related

Motorola HT820 + Trinity

Would the Motorola HT820 headphones work on Trinity?
They're working fine for me; the only tweak I did was to disable the JointStereo so I have proper stereo audio - there are a million threads about that around here, it's in the registry.
I have the SYN0948D model of the HT820, which I think is the newest, for previous ones there's a flash firmware update that may fix some skipping.
oh! Mind answering some questions for me?
How are they for music? Sound good? Any major problems? I use TCPMP for music.... will the controls work that are on the headphones themselves? How about the battery life (of the phone and the headphones?).
It seems the headphones also have a mic? Does that work with the phone?
Id appreciate if you could answer these for me... thanks!
The sound quality for music is certainly not what I'd call perfect.
Put it this way: I attached them using the supplied 2.5 -> 3.5 mil connector to my high-end audio card in my PC, and they sounded pretty good for headphones of their size.
However, when running over Bluetooth there is a noticeable drop in audio fidelity. I don't know whether to attribute that to the Trinity or to the headphones, but I suspect the Trinity. Maybe it's downmixing the audio?
There is a lot of A2DP tweaking you can do to find the best balance between audio quality and skipping/reception; I left it fairly close to the defaults for now, and I'll probably play with it more later.
The mic works with the phone and the audio quality for voice calling is outstanding. It sure makes a difference to hear a person in both ears - when I use them I almost never have to ask a person to repeat themselves. I haven't heard what anyone else sounds like when calling from the Ht820s, but friends say that they can hear a slight echo depending on the room I'm in. Makes sense because the room I usually call from is a smallish office/den with wood floors and lots of echoes.
I am going to fire up TCPMP right now to try to play a song with it. I've been using PocketMusic but it sucks balls...
Plays the song just fine, but it doesn't seem to support the next/prev track buttons at all. I tried to map them in the Hot Keys section, no dice.
PocketMusic and WMP both seem to work with the buttons, for what that's worth.
If you need anything else, just PM me like last time.
Yah I tried pocketmusic... it blows. I use tcpmp for everything. I suppose I can just use the controls on the phone itself.
I currently use the shure buds.... I hope Im not too used to the great quality ive been getting on them.

MP3 Quality problems

I have noticed that after switching to the Dopod test rom with GPS, the quality of the sound I got from my mp3's was severely degraded. It had a nice deep bass quality on the old HTC rom when plugged into the aux input on my car stereo. Now on the new rom it sounds like all the low register sounds have been cut out and it sounds really tinny and hollow.
The only other thing I could think of is that I got one of the HTC Y cables for allowing charging and audio out at the same time. I don't know what to blame since I used the new rom and the new cable at the same time.
Could anyone tell me if it is more likely a problem with the rom (is anyone else on the Dopod test rom noticing this) or maybe a connection problem caused by the new Y cable? (it fit rather tight on first plug in)
Any thoughts are much appreciated. Even if it's just to say that you sound quality is fine with the new rom. Regards.
same problem
after one week of nice using of the new GPS activated ROM , yesterday evening I noticed the same .
Using my bluetooth stereo headset , I noticed that really the quality has been degraded in comparison with the performance with the origina HTC ROM.
I hope that the next new rom upgrade will fix this point !!!
Thanks tower. At least I know I'm not going crazy!
Anyone else? Maybe you haven't checked yet...
Bump
This is a pretty big issue as far as I can see! Anybody? I've added a poll...
I agree.
I used the new Dopod ROM with GPS (1.23.707.4).
the sound is completely lacking bass for mp3. it sounds like tin can.
My previous ROM (french 1.15.406.2) was much better in this aspect.
I am thinking downgrading because of that but I would like to keep the GPS so I am wondering if Dopod ROM 1.23.707.2 is OK with mp3.
I also have to add that m4a files (aac) are OK. Plenty of bass for them.
It is strange because if something was wrong with codec only media player would be affected by the problem. tcpmp, coreplayer use their own codec. but yet the problem is also there.
I downgraded to 1.23.707.2.
mp3 problem is still there.
It seems to be less obvious though. But maybe it's just me trying to find differences...
I will use aac (sound is perfect with it) until problem is fixed
I will try to export registry settings and compare with original ROM.
You should add a different poll:
If mp3 quality is indeed degraded, would you choose GPS over better MP3 quality or the opposite?
what happen with the last "test rom"
did naybody test the audio performances of the last " new test GPS rom" ?
is it nice as the "original HTC ROM " ?
THkx
meroupow said:
I will use aac (sound is perfect with it) until problem is fixed
Click to expand...
Click to collapse
I converted a couple of my tracks with deeper bass to aac so I could test this theory and found no appreciable difference in quality. It doesn't even sound like the bass is present at all! Maybe I'm doing something wrong with my encoding...but I don't think so. Crossing my fingers for an eventual HTC fix...then this device would be truely perfect IMHO.
@meroupow: Thanks for the suggestion anyway!!!
Just flashed the final Dopod ROM 1.23.707.6.
Still the same problem with mp3 and DIVX files (as sound is mp3...).
Also I am sure that m4a files are fine. I used itunes to convert mp3 and the resulted file has got normal bass and is perfectly fine.
Also for video I use MP4 ASP IPOD profile and the sound is OK.
So I can listen to music and watch videos.
Therefore I will keep the ROM with GPS.
Also I noticed that the sound is much more stronger with the Dopod ROM than my original french ROM.
Here in europe there are laws for music players to limit the max level of sound.
I am very glad to see it's only controlled by software by HTC.
For Ipods I think it's controlled at hardware level and there is nothing to do...
@ meroupow
I used dbpoweramp to convert my mp3's to aac (m4a), and got no results. I will try iTunes and see if I get any better results. At least I'll know that I did the same thing you did! I am really jealous...I can't even stand listening on my car stereo anymore - I just get really pissed and shut it off!
But I wouldn't give up the GPS for it - and I don't think I should have to!
By the way, I also flashed to the Dopod ROM 1.23.707.6.
ok now I find no bass at all even with aac...
I use version 1.23.707.6.
I have been messing a lot this week end with ROMs (1.23.707.4 then 2 then 6) and I started to encode aac a lot because it was fine.
And now I am completely unable to get the bass back.
I am not even sure when I lost it.
It maybe a soft I installed or something in the extended ROM.
Maybe I will try a hard reset with soft reset to prevent ext ROM to install...
No luck with iTunes either. I am as "bassless" as most of my wife's arguments!
Come on HTC...get that new rom ready!
Did anyone try to alter the registry yet? I noticed some bass-keys that are set to 0:
HKCU\ControlPanel\AudioAdvContrl\Bass : 0
HKCU\ControlPanel\AudioAdvContrl\SuperBass : 0
HKCU\ControlPanel\AudioAdvContrl\Treble : 0
HKCU\ControlPanel\AudioAdvContrl\ToneEnable : 1
Maybe these help?
oVan said:
Did anyone try to alter the registry yet? I noticed some bass-keys that are set to 0:
HKCU\ControlPanel\AudioAdvContrl\Bass : 0
HKCU\ControlPanel\AudioAdvContrl\SuperBass : 0
HKCU\ControlPanel\AudioAdvContrl\Treble : 0
HKCU\ControlPanel\AudioAdvContrl\ToneEnable : 1
Maybe these help?
Click to expand...
Click to collapse
Thanks for looking these up, oVan. I'll give this a try to see if it helps. I'll also temporarily roll back to the HTC ROM to check these settings for comparison.
prsnow said:
Thanks for looking these up, oVan. I'll give this a try to see if it helps. I'll also temporarily roll back to the HTC ROM to check these settings for comparison.
Click to expand...
Click to collapse
@prsnow
I'll be interested in your results! I had a couple of seconds at work to mess with these values, and indeed they seemed to make some sort of audio difference. I'd love to be able to copy the values from the original HTC rom, but I thought I read that I wouldn't be able to roll back even to check them because the bootloader version on the Dopod rom is now too high (I paid for the CID unlock). Maybe I misunderstood. I wish you success and anxiously await the results!!
prsnow said:
Thanks for looking these up, oVan. I'll give this a try to see if it helps. I'll also temporarily roll back to the HTC ROM to check these settings for comparison.
Click to expand...
Click to collapse
I still have the original ROM and these registry values are the same as you have now.
but maybe the old rom ignored them and the new rom uses them
Yes, the old ROM has the exact same values. Has anyone tried changing these values with any promising results?
Ok, I got my bass back with aac and ROM 1.23.707.6.
You have to use windows media player. ;-)
Windows media player for pocket pc only played mp3 and wma before but for trinity they added support for mp4 asp and aac for video recording through ATI imageon encoder/decoder.
Thus I think when sound goes through imageon it is not degraded.
only uses imageon for video and aac is bassless.
same for mortplayer and all other softwares.
Somebody can confirm wmp+aac is working?

8525 with wm6, bluetooth suddenly bad

Forgot I'm a member here...
Hay guys. I updated my 8525 to WM6 around Thanksgiving, and everything was great. I had no problems at all. I decided to whip out my old i-phono stereo bluetooth headset and try it out with the superior A2DP quality on WM6. It worked really well, though I decided to go ahead and remove the BitPool and MaxSupportedBitPool registry keys as well as most people suggest for increased quality. It worked really well up until yesturday when I tried using my headset, and everything went wrong. When the headset syncs with the phone, the phone starts facing a lot of slow down. The worst thing is that when I try to play music, the music stutters hella bad, and the quality is very low. It's almost like the phone is super busy type of poor playback, which can happen even without using bluetooth, though the pronlem is exasgerbated when trying to stream music data to the headset.
Short of a hard reset, I haven't a clue what to do, or why it is doing it all of a sudden. I've already tried the task manager fix, and related .cab fix, but it did nothing for me. Really ticks me off....
None of the genius minds here has an answer?

Audio problem with built in fm radio

Hi, Trying again in this forum as no answers in Themes and software one.
Audio booster works well with music player - really makes a difference.
But sometimes I like to listen to the built in FM radio - It's great for commuting. The problem is the sound is quite low and the Audio booster makes no difference to it. I tried SRS WOW HD but that produced no sound untill i tweaked the registry - then I got sound but no ability to enable SRS.
I know this is fairly low on peoples priority list but please, if anyone has any ideas, I'd be really gratefull
have u installed HD tweak, it has options to increase sound level and improve radio reception.
Thanks Zesper,
Yeah - tried that but no joy playing thru ear phones - it's still pretty quiet
Toggs said:
Audio booster works well with music player - really makes a difference.
But sometimes I like to listen to the built in FM radio - It's great for commuting. The problem is the sound is quite low and the Audio booster makes no difference to it.
Click to expand...
Click to collapse
To be honest, it doesn't make much sense as the System volume controls both music and radio and if I turn the radio up fully on mine, it'll probably burst my eardrums it's that loud.
Perhaps you have a hardware problem, but you could try a hard reset just to be sure it's not the software configured incorrectly somewhere. Try the radio out before installing anything else.
I too find the radio volume to be too low. No such problem with music player.
I have the same problem. Audio Booster don't work with FM Radio.
Probably something wrong with Dutty's V3.3 XT ROM, in my previous ROM there was not those problems.
optxperiabeta02
I got this file from a Russian website. It worked very well on my Xperia. You'll probably have to turn down the system volumes a fair bit though.

Bluetooth Volume Issues

Hello everyone,
after thoroughly searching the forum, i think nobody had the problems I am experiencing right now, so here are my issues:
1. Is there any way to decrease the volume of the device with bluetooth headsets? I have 2 headset (Plantronics Discovery 925 and Jabra BT3030) and both are imho way to loud. Especially when I'm listening music with the Jabra (and my UE Super.fi 5 Pro headphones) only the 2 lowest settings are bearable, when the phone is in the lowest setting!! Looks like the efficiency of my headphones is way higher than the stock ones...
2. Some time ago another User asked for the HTC Calendar.cab, but nobody had it. Is there any way, this has changed , or maybe there is a module for the Dusk theme? This is the last thing that i need to be completely satisfied with my HD...
ROM: Stock (Actual Version) WM6.1
Dusk Manila 12 Tabs
The second issue is now fixed, i just replaced the calendar with thumbcal.
Can nobody help me with the bluetooth volume?
nueDynamicClock v1.3, Bluetooth Audio Beeping...
I must say I thought this would be an easy thing to do, to make the bluetooth volume higher was solved before...
I have another question: Is there any way to link GProfile with nueDynamicClock v1.3?? It would be an extremely good feature, which would improve my battery life... For an Example when I listen to music over Bluetooth I need 122.88MHz, to use the phone for the rest of the time in Idle 19.20MHz!!
Any Help would be really appreciated
EDIT: I forgot to mention: the Jabra is always "beeping" at a high frequency, is there any way to solve this? It gets a bit on my nerves...

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