Doubt about Bluetooth audio - Redmi K20 / Xiaomi Mi 9T Questions & Answers

A group question, does anyone know a way to increase the audio power in the Mi9T?
-I have some Anker Soundcore Life 2 and the audi is heard softly ...

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eperez98 said:
A group question, does anyone know a way to increase the audio power in the Mi9T?
-I have some Anker Soundcore Life 2 and the audi is heard softly ...
Click to expand...
Click to collapse
Just switch region to United States and it should help a little.

Pedro452 said:
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Just switch region to United States and it should help a little.
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Click to collapse
how exactly should this help? Any technical details?

londonhilton said:
how exactly should this help? Any technical details?
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Click to collapse
I can't tell you how but I did it and the sound through earphones on 3.5mm is a bit louder and better so my guess is it works for Bluetooth as well. Also in developer settings there's an option called "Deactivate Bluetooth max volume" or something like that (I'm roughly translating it from my language) anyway try that and let me know how it goes as I don't have Bluetooth earphones to try myself.

Pedro452 said:
I can't tell you how but I did it and the sound through earphones on 3.5mm is a bit louder and better so my guess is it works for Bluetooth as well. Also in developer settings there's an option called "Deactivate Bluetooth max volume" or something like that (I'm roughly translating it from my language) anyway try that and let me know how it goes as I don't have Bluetooth earphones to try myself.
Click to expand...
Click to collapse
Probably good old confirmation bias - based on the superlative of an idiotic approach to "test" audio-related matters - by listening/thinking/feeling (instead of measuring)...
At least regarding the "3.5mm volume output increased after switching region to USA" claim (tested using UA Apollo > Logic and multiple EU regions/USA): Zero difference.

callmeWhiskers said:
Probably good old confirmation bias - based on the superlative of an idiotic approach to "test" audio-related matters - by listening/thinking/feeling (instead of measuring)...
At least regarding the "3.5mm volume output increased after switching region to USA" claim (tested using UA Apollo > Logic and multiple EU regions/USA): Zero difference.
Click to expand...
Click to collapse
You can go **** yourself with that "I know everything hence I'm better" and it would do you good to rechoose your words and maybe be a bit more humble as that stupid attitude won't get you anywhere. Good day

Related

iROCK! miniature FM transmitter

Hi Guys,
I replied to this quote, then realised that I'd never seen the iROCK! mentioned generally here:-
I have an early version which works great either battery or car adaptor (tho never in this country obviously!!! :wink: )
barney withers said:
I'm trying to use my XDA2 as a MP3 player and want to take an audio feed from the XDA2 and put it into my hifi. The only way I can think of is to use the internal serial port and convert it to twin phono's but not sure if this will work. Any bright lights out there know the answer?
Click to expand...
Click to collapse
You could also try the amazing iROCK! which you plug into you earphone socket & it transmits on one of 4 FM frequencies to your nearest radio.
(it's illegal in the UK unfortunately, but available from USA etc.)
Don't know where you are located. If ya get caught over here, I never suggested this Guv! :wink:
http://www.myirock.com/players/newproducts.asp
Interesting, but unfortunately "the product is not approved to be shipped outside us and canada".
toon6 said:
Interesting, but unfortunately "the product is not approved to be shipped outside us and canada".
Click to expand...
Click to collapse
Got mine from a visiting American, only use it 'on the move' :twisted: Not suggesting anyone else do the same, of course.
you can get these on ebay, I bought 2, shipped from hong kong
Quick question - They all seem to have 3.5mm jacks. Is there a version with 2.5mm jack?
you can get converters from 2.5 to 3.5 many many places
http://www.holomaxx.com/trade/images/product_oem-generic_35to25.jpg
http://www.expansys-usa.com/product.asp?code=ARKCMSF121
Has anybody tried the car baby? its small rechargeable unit that clips over the speaker and transmits on fm band, all audio will then come from speakers in car or in house on the radio. I found it to work well as long as you kept the volume low on the pda as too much volume causes distortion. It is very cheap and very effective as a wireless audio transmitter and doubles up as a hands free for the phone also.
Rudegar said:
you can get converters from 2.5 to 3.5 many many places
http://www.holomaxx.com/trade/images/product_oem-generic_35to25.jpg
Click to expand...
Click to collapse
Thanks for the input. I am not sure which generic 2.5 to 3.5 works and which does not. Obviously the 2.5 jack in the XDA has the extra contacts for phone off/on button. Does this cause any issues? I think I have seen a reference where the poster was mentioning hearing both left & right channels mixed on his right earphone when audio is piped into a good quality headphone using a 2.5 to 3.5 converter.
i doubt it but not 100% sure
i got the original QTEK converter myself

How good (or bad) is the Trinity

OK I see that some of you already got the device. My wife wants to replace her Nokia N80 for the white version. Now I previously had an Orange SPV M3100 (HTC Hermes) & had no end of problems with that sold it & now happily using an Asus P525. So how about the the Trinity.
-Is it stable?
-Does A2DP & AVCRP work properly as in having proper stereo output?
-Does the A2DP reconnect automatically to WMP after receiving a call (the -Hermes never did, had to restart everything).
-How's wifi reception (the Hermes was crap). She uses wifi a lot as we have 250mins free BTOpenzone minutes a month.
-I looked at the HTC website but it seems they do not supply firmware upgrade support for their devices. So where can you get them officially?
Fill me in guys. Thanks
Is it stable?
I don't feel it's very stable when coming to the phone part. If I've used the device for a while, I often have to hard-reboot it for the phone part to work again(it just stands "calling", and nothing happends)
-How's wifi reception (the Hermes was crap). She uses wifi a lot as we have 250mins free BTOpenzone minutes a month.
The WiFI reception on my phone is very good. I've actually managed to connect to hot-spots which my laptop didn't manage to connect... *me like*
-I looked at the HTC website but it seems they do not supply firmware upgrade support for their devices. So where can you get them officially?
In Norway you get the official firmware updates/rom from the local distributor.(Dangaard and Brightpoint)
What about other features, like those related to the cameras?
How is visiophony with the front camera?
How is the picture quality of the back camera? Most of the reviews are made with good light conditions. What about the pictures in low light condition?
Movies? Are they correct?
Battery life with that 400 MHz processor compared to Prophet?
Could anyone post pictures/movies made with Trinity?
The wifes P3600 arrived this morning. Been playing with it all for a while & here's my 1st impressions.
Good
Looks nice & shiny
Small size
Excellent loud clear external speaker
Nice & responsive
Phone reception & general operation is fine
3G works well
Bad
Shiny surface = fingerprint magnet
MS bluetooth stack, better than before but still lacking
A2DP implementation. Not real stereo, only mono out from each channel
Also when disconnectd from WMP it doesn't auto reconnect.
In summary if you used previous HTC devices before then you'll be familiar with this one. When used as a pda & phone it does most things as expected, the menus & general operation are same as before.
But its going back, one of the main reasons being the crap A2DP. Wifey uses music player a lot on her 1 hour daily commute & the fact that sound quality is rubbish (low volume & no stereo) & no option to connect a wired headphones as theres no headphone jack. The same problem as the Hermes in that once disconnected from WMP it doesn't auto reconnect. Have to go into Bluetooth manger to re establish the connection.
Also comparing it to my Asus P525 other than the smaller size, 3G, louder external speaker & looks a bit nicer, in all other depts the Asus is as good & some areas much much better.
Well, my opinion is that the camera sucks... Was on a party this weekend _with_ good lighting, all the picutures came out blurry *argh* (could be it was too much light tough?...)
The videotelephony-part on the other hands is quite good(for videotelephone, NOT for taking still-pictures).
And I also don't like the 2-7 sec. delay when you try to call someone... *argh*
neofix said:
Well, my opinion is that the camera sucks... Was on a party this weekend _with_ good lighting, all the picutures came out blurry *argh* (could be it was too much light tough?...)
The videotelephony-part on the other hands is quite good(for videotelephone, NOT for taking still-pictures).
And I also don't like the 2-7 sec. delay when you try to call someone... *argh*
Click to expand...
Click to collapse
2 to 7 second delay? It sounds like a ROM upgrade will probably be coming to fix these issues...same story different cover.
zen123 said:
A2DP implementation. Not real stereo, only mono out from each channel
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Click to collapse
This sounds new to me. I am using a SonyEricsson stereo BT thingy with my Qtek S200 (with A2DP hack) and as far as I can hear the output is stereo not mono from each channel.
I love mine compared to my Exec! Quicker and sleeker.
And got my 4GB miniSD this morning and it works fine
anonimo said:
This sounds new to me. I am using a SonyEricsson stereo BT thingy with my Qtek S200 (with A2DP hack) and as far as I can hear the output is stereo not mono from each channel.
Click to expand...
Click to collapse
Yes, proper stereo could be possible with a registry hack but how many end users are to know that? Only the hardcore users frequent forums such as this & get to learn a lot about their devices. Assuming it can be done then why didn't HTC enable it in the first place? Mention a registry hack to the vast majority of users out there & I'm pretty sure you'll be met with a lot of blank expressions & ??????
With the aesthetic design of the trinity I think HTC are trying to market it to more mainstream audience, thats why my wife likes the look of it, but in all honesty how many of these new users will know how to exploit the device to the full. My wife never visits these forums & even her 8 month old Nokia N80 is still out of the box stock.
zen123 said:
Yes, proper stereo could be possible with a registry hack but how many end users are to know that?
Click to expand...
Click to collapse
I thought the registry hack was only to enable A2DP on those devices where the manufacturer had disabled it and the end result of a hacked S200 would be the same of a standard TyTn or a standard P3600... Are you sure the P3600 output is not stereo?
anonimo said:
I thought the registry hack was only to enable A2DP on those devices where the manufacturer had disabled it and the end result of a hacked S200 would be the same of a standard TyTn or a standard P3600... Are you sure the P3600 output is not stereo?
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Pretty sure its not stereo, either that or the stereo separation is really poor because it sounded like mon to me. In saying that though when I paired my iTech R35 stereo bluetooth clip with it there was the option to tick headset mode & stereo mode but its too late now I've sent it back today.
The only dislike on my new P3600 is the position of penon the bottom! . I've used many pda, and the pen was on top! But for the rest I love it!!!!
zen123 said:
Pretty sure its not stereo, either that or the stereo separation is really poor because it sounded like mon to me. In saying that though when I paired my iTech R35 stereo bluetooth clip with it there was the option to tick headset mode & stereo mode but its too late now I've sent it back today.
Click to expand...
Click to collapse
You are right the stereo bluetooth output is not stereo. This is ridiculous. I hope this can be fixed with some registry hacking otherwise HTC has really screwed this device big time.
One more thing, the smooth black coating is comming of from the bottom where the stylus is placed.... That's s REAL bad thing, since this will eventually tear up more and more of the coating... And I've only had it for two weeks
default A2DP registry settings for Trinity is:
UseJointStereo = 1
please change to:
UseJointStereo = 0
that will fix the "mono sound" issue.
Question
So far what i read, the software for this phone 3600 is not fully stable,
Camera still delay..
Some bugs
additional question following,
Delay of standard programs opening?
How about the sounds quality (loudness and clearness) is it very good?
which one is really better if compare 3600 and 3300(GPS enabled), which should i buy... -_-"
Thank you in advance..
fantastic device
Got my Trinity since yesterday. I had several phones and pda before (Dell Axim x51v was the last one) but the Trinity is the best until now. small enough, fast enough... if I only could get MMS to work for vodafone germany...
saminegm said:
Got my Trinity since yesterday. I had several phones and pda before (Dell Axim x51v was the last one) but the Trinity is the best until now. small enough, fast enough... if I only could get MMS to work for vodafone germany...
Click to expand...
Click to collapse
Did you try these (manual entry and cab for Vodafone):
https://shop.dangaard.de/files/Qtek/Qtek.htm
Tytn and Trinity 3G/UMTS should be the same
So far...the trinity is my new favorite thing..very stable (have had to soft reset twice to get the Wifi signal running after a sync while wifi was on) and lots of fun. Phone is great and signal with one bar or less is still usable - where my old motorola was no good with a weak signal...and i can now make and take calls from my office - where previously there was no chance with the motorola. This device does everything I bought it for -combine my PDA and phone into one device...
where to buy
DaveUK said:
I love mine compared to my Exec! Quicker and sleeker.
And got my 4GB miniSD this morning and it works fine
Click to expand...
Click to collapse
Can you please said where did you buy the miniSD? Thanks

Recommendations for X7501 BT Headset

I'm going to be getting my HTC X7501 Advantage from Amazon in about two weeks and wanted to know from current owners what bluetooth headsets you'd recommend.
I understand that this phone doesn't have a vibrate mode. Should I get a BT headset that vibrates? How about a display? What other factors are important? I've never owned a headset, BT or otherwise, so I'm new to all of this.
If you have any specific headsets that work well with the HTC X7500/X7501 Advantage, please post.
Thank you.
A lot of them here
http://forum.xda-developers.com/search.php?searchid=4010633
whoster69 said:
I'm going to be getting my HTC X7501 Advantage from Amazon in about two weeks and wanted to know from current owners what bluetooth headsets you'd recommend.
I understand that this phone doesn't have a vibrate mode. Should I get a BT headset that vibrates? How about a display? What other factors are important? I've never owned a headset, BT or otherwise, so I'm new to all of this.
If you have any specific headsets that work well with the HTC X7500/X7501 Advantage, please post.
Thank you.
Click to expand...
Click to collapse
Jabra BT8010 is very highly recommended. It has Caller ID (showing contact names when used with Jetware) and also vibrate. Second choise would be i.Tech Clip D with the same Caller ID feature, but not vibrate.
victoradjei said:
A lot of them here
http://forum.xda-developers.com/search.php?searchid=4010633
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Click to collapse
Wow, I didn't know you could search that way! On forums and subforums with keywords! Thanks victoradjei!
I've performed searches and read a bunch but thought I'd ask here as well, in case someone mentions something that I've missed.
Thank you too coyotte! I've seen a lot of people recommend the Jabra BT 8010. I've often wondered how useful the caller ID would be when this thing is stuck in my ear right? Or is it that people have this out when they get a call (I guess that makes more sense since people don't want to wear it all the time LOL!). How do people carry this along with their phone so they can get feel the vibrate and see the caller ID?
Thanks again both of you!
Aliph Jawbone FTW. Sound quality is more important to me than displays or vibration.
whoster69, I don't know if you've already seen this, but I came across this link to a demo of the Jabra BT8010 and it looks interesting:
http://www.ultramobilegeek.com/2007/06/jabra-bt8010-review-great-umpc-toy.html
I too have an HTC X7501 on order from Amazon (shipping est. 2-3 wks.) and was also wondering how I was to use its phone capabilities. I'm a total newb to all matters pc phone-related so I may be in left field here, but I think I'll be able to: 1) buy a BT headset w/ callerID & vibration functions, 2) keep headset in my shirt pocket or another readily accessible place, 3) be alerted to calls via the X7501's ringer function, 4) field calls by pulling the headset and checking the callerID on the headset's LED screen, and 5) answering the call by popping the headset in my ear and talking away or refusing the call by some other such means (I suppose you can push a button on the headset to have the call go directly to voice mail.) Anyway, just a newbie thinking out loud but, hopefully, posting a link to some info someone may find useful.
Jefson said:
whoster69, I don't know if you've already seen this, but I came across this link to a demo of the Jabra BT8010 and it looks interesting:
http://www.ultramobilegeek.com/2007/06/jabra-bt8010-review-great-umpc-toy.html
I too have an HTC X7501 on order from Amazon (shipping est. 2-3 wks.) and was also wondering how I was to use its phone capabilities. I'm a total newb to all matters pc phone-related so I may be in left field here, but I think I'll be able to: 1) buy a BT headset w/ callerID & vibration functions, 2) keep headset in my shirt pocket or another readily accessible place, 3) be alerted to calls via the X7501's ringer function, 4) field calls by pulling the headset and checking the callerID on the headset's LED screen, and 5) answering the call by popping the headset in my ear and talking away or refusing the call by some other such means (I suppose you can push a button on the headset to have the call go directly to voice mail.) Anyway, just a newbie thinking out loud but, hopefully, posting a link to some info someone may find useful.
Click to expand...
Click to collapse
Thanks for the link Jefson. Yes I had seen that. I thought it was pretty useful. So far at least, I'm leaning toward the Jabra BT8010. While there seem to be headsets out there that have better clarity or noise cancellation (Jawbone) and others that have many of the functions BT8010 (BlueAnt V12), none seem to have the completeness of the feature set of the Jabra BT8010.
Have there been any people who have tried the Jabra BT8010 and didn't like it? If so, why didn't you like it? I know it's kind of big and a few have complained that it's not perfect for listening to music (something about the range not being enough). I'd be curious to see what people who have used it think of it and how practical it is to use with the HTC Advantage.
Regarding how you want to use it Jefson, I agree. I've never used a headset at all and I'm trying to figure out, ergonomically what will work. If I get a call, will it ring on the headset, the phone or both? Is it reasonable to expect that I can whip out the headset and see who is calling and then decide to take the call or not? And if I do take it can I get it put on in a reasonable amount of time to answer the call?
Anyone with some experiences with the HTC Advantage/Athena please post and let us know how this works and if our ideas are reasonable or not.
Thanks again everyone for your comments. They are helpful!
You might want to check the BlueAnt V12. Vibrate, LCD caller id (numbers only), works well with VC1.6. Good price. I like mine.1
wgary said:
You might want to check the BlueAnt V12. Vibrate, LCD caller id (numbers only), works well with VC1.6. Good price. I like mine.1
Click to expand...
Click to collapse
Thanks Gary. It's one I'm looking into.
What is VC1.6?
I may be jumping the gun a bit, but I just ordered both the Jabra BT8010 and the BlueAnt V12 from Amazon and they are slated to arrive August 1st. I'm going to see how easy and convenient (for me, at least) they are to use and which one I prefer with my AT&T 8525 (UTC Hermes). I'm assuming the experience will carry over, at least to some extent, to the X7501. Anyway, in the near term I may be able to answer, remembering my newbie status, some basic questions regarding use of the two devices.
whoster69 said:
Thanks Gary. It's one I'm looking into.
What is VC1.6?
Click to expand...
Click to collapse
Microsoft VoiceCommand 1.6
Jefson said:
I may be jumping the gun a bit, but I just ordered both the Jabra BT8010 and the BlueAnt V12 from Amazon and they are slated to arrive August 1st. I'm going to see how easy and convenient (for me, at least) they are to use and which one I prefer with my AT&T 8525 (UTC Hermes). I'm assuming the experience will carry over, at least to some extent, to the X7501. Anyway, in the near term I may be able to answer, remembering my newbie status, some basic questions regarding use of the two devices.
Click to expand...
Click to collapse
Excellent Jefson! I was thinking of doing the same thing! My X7501 will be shipping any day now so I'm hoping I'll get to test it with them fairly soon (though I don't have a cell plan yet -I plan on testing the PDA stuff first and deciding on whether or not to keep the phone before committing to a cell plan). I'm looking forward to hearing your results Jefson!
Anyone know of any headsets that are going to be coming out in the near future that are worth considering?
Great info here about the Jabra BT8010, can anyone compare to the Jawbone
in terms of call quality?
Like the Athena, the Jabra's convergence features seal the deal.
Unless there is another headset out there that has a display, and vibrate mode with stereo bt, it is in a class by itself.
If some other model comes out, I would like an internal earbud.
Keith Walker
keithwwalker said:
in terms of call quality?
Like the Athena, the Jabra's convergence features seal the deal.
Unless there is another headset out there that has a display, and vibrate mode with stereo bt, it is in a class by itself.
If some other model comes out, I would like an internal earbud.
Keith Walker
Click to expand...
Click to collapse
I agree Keith. I just thought I'd ask. Yesterday I heard about the Jabra BT8040, but it doesn't have the features of the 8010 it seems. Too early to tell for sure though.

Improve sound quality via BT A2DP

Does anybody know how to improve sound quality for playing music over A2DP profile with Parrot handsfree? On Rhodium i applied some tweaks for quality improve and it was clear and nice to listen, but Leo is not so nice to hear
Thx a lot
I had to tweak my diamond too, looked for tweaks on the HD2 but couldnt find them, but the sound quality is way better on my HD2. I dont think it needs the tweeks tbh.
If i take both, TP2 and HD2 to my car, let play the same song and im switching between HTC's then has got TP2 much more clear and brilliant sound, without any quiet cracklings from tweeter speaker like it is on HD2 :-(
Same problem here, sound quality for a2dp is not what it should be. I tried adding the LineSpeed registry setting, it did improve the overall quality, but did not remove the cracking noise - and in my case I still have frequent skipping and gaps in the audio playback. Have not yet had a reply for Tech Support, and if/when I do, I don't think it'll be a very intelligable one...
Yop, i think too, that the answer will be unusable, or maybe they tell you that u should do a Hard rst :-D
First time i connected it to HF and let music play i thought that is a bad quality song, but it isn't :-(
Anyone idea?
I know there are some settings to definately improve the sound of A2DP. I've added them on my previous HD, and worked perfectly after that! I just found some things you might try (I just applied them myself as well, but havent tested them yet; I'm almost sure they'll work):
http://forum.xda-developers.com/showthread.php?t=308752&highlight=A2DP+settings+bitpool
If I'll find the previost post which I applied in the past on my HD, I'll let you know. If the one I just posted will work, I'll let you know as well of course, because the litteral and figural crappy sound of A2DP is something I hate as well...
Edit:
Take a look at those settings as well from J-A-J-O at page 6:
http://forum.xda-developers.com/showthread.php?p=1677577#post1677577
Again, I don't know exactly if it were those settings, but they sound familiar to me. I'm also busy trying to get the best sound quality via bluetooth out of my HD2
More info about the settings:
http://forum.xda-developers.com/showthread.php?t=310438
Kind regards,
GreenFrog
The XDA tweaks are rubbish and do not work. I currently have a call out with HTC.
I have removed all reg tweaks from my HTC and now can get A2DP working on my parrot ONLY in the following situation:-
(1) Reboot HD2 (hold end key and select off. then switch on)
(2) Allow to connect to Parrott (will connect handsfree first)
(3) Open bluetooth from settings and select stereo audio and select connect.
(4) select handsfree and select disconnect.
(5) Press PLAY on the parrott kit
By doing this I get no skipping at all and the quality is good. I have no tweaks running.
This is obv crap and is why I have been speaking to HTC all week.
Steps 1-5 have to be strictly followed for this to work.
The BT tweaks mentioned on this forum do not work. They only appear to work as you have rebooted. After using the HD2 for a while and then connecting A2DP, skipping will occur again.
Try steps above and it will work.
Interesting! I'll try that on mine. Greenfrog all of those links and bitpool settings relate to the Microsoft Bluetooth stack. However the HD2 uses the Widcomm stack so those registry settings can't be made.
I too am fed up of the bluetooth sound quality. How can they assume we'll be happy with this mediocre sound?! I can't see why with a 1Ghz processor it skips.
Have you guys tried the A2DP with the latest 1.61 ROM? I'm still on 1.43....
When I find my 'goldcard' that I made I'll try it on 1.61 and let you know
We'll get there in the end....this is really my only bugbear with the HD2, so it would be good to get it fixed!!!
There got to be a way!
I, too, am really p***ed off by the bad audio quality i get using stereo blutooth. It's really an issue with the HTC HD2 and apparently no pro reviews pointed it out!!! I use it with the sony DR-50 which are one the best A2DP headphones out there, but the sound is horrible Please help...
I'm too suffering from the A2DP situation...
The Linespeed registry hack helps me on some devices ( HKML\Software\Widcomm\Plugins\AV add DWORD Linespeed with value between 64 and 512, the higher the better sound but higher probabilty for skipping).
With Linespeed = 320 sound is great and I have no skipping with a Sony DR-BT160AS. But: My Motorola S9 badly skips unless I have it very close to the HD2. Linespeed = 256 is working ok with both devices...
BUT:
I also have a blueLino A2DP Receiver which has a bad quality on both settings, at least on some songs. That's really disturbing.
Just a quick update, I've just flashed to 1.61 and it makes no difference. Default A2DP sound quality is unacceptable. Grr
purnelld said:
The XDA tweaks are rubbish and do not work. I currently have a call out with HTC.
....
The BT tweaks mentioned on this forum do not work. They only appear to work as you have rebooted. After using the HD2 for a while and then connecting A2DP, skipping will occur again.
Try steps above and it will work.
Click to expand...
Click to collapse
-----------------------------------------------------
Well, first I have to say I don't have the 'skipping' issue at all. I have my HD2 connected via bluetooth to my Pioneer DEH-P7100BT car radio. I have a clear connection when calling, but when playing music via bluetooth, I have the 'hissing' issue.
Next is that I have to admit that when I changed the settings according to my previous solution, did work a little, but not as it supposed to. When I had my previous Touch HD if found a link which worked perferctly for me! When I changed to those settings, the hissing were gone completely and the sound quality improved to CD level. Although, I'm still searching those ones again for my HD2 at the moment....
So, conclusion this far is that it totally depends on the hardware which you are connected to as well.
Regards,
GreenFrog
@Greenfrog:
I guess the bitpool settings which worked well on my HD as well, only work when using the MS Bluetooth stack. The HD2 uses the WIDCOMM Bluetooth stack, I haven't found a noticable difference.
The LineSpeed registry setting does improve overall audio quality, but I still have skipping and playback gaps. Very poor performance for the performance beast the HD2 is. I urge everyone to report this to HTC (I did) - this is really unacceptable.
I will also report this to HTC. I am so frustrated by it tbh
As Moses posted...I had linespeed set up on my TP2 and the sound was great, but now i have no time to test it now, can someone other test regitry key?
Bluetooth settings
Can be found here HKLM\Software\WIDCOMM\
A2DP Tweak Provided by R_phAn (Please note this will not work with all devices)
As we know from the past, each device has it's own preferences and capabilities (So you'll have to play around)
Managed to improve soundquality by adding DWORD 'LineSpeed' to HKLM\Software\WIDCOMM\Plugin\AV\ with a value of 320.
it is posted here for TouchPro2: http://forum.xda-developers.com/showthread.php?t=524655
Edit: I tryied it tomorrow morning and it is still the horrible quality, poor music quality and during the call skipping :-/
jonboyuk said:
...all of those links and bitpool settings relate to the Microsoft Bluetooth stack. However the HD2 uses the Widcomm stack so those registry settings can't be made.
Have you guys tried the A2DP with the latest 1.61 ROM? I'm still on 1.43....
When I find my 'goldcard' that I made I'll try it on 1.61 and let you know
We'll get there in the end....this is really my only bugbear with the HD2, so it would be good to get it fixed!!!
Click to expand...
Click to collapse
Okay, thanks a lot for this update! I was really unaware about the different stack, so I don't have to look further for the the previous links anymore... I'll try to add linespeed as well to see if it works with my Pioneer car radio. I hope it will...
There should be an answer for sure for this issue. I also cannot understand why it have to be this difficult. The previous solution did work very well. Why have they changed to the other stack anyway? Does someone know that?
I'm running the 1.48 ROM btw.
GreenFrog
I found one thing, i'm using SPB Radio for online streaming, when im listening in my car streamed radio then the sound quality is excelent...? How is that possible?
That's a very good question.
I experimented a bit with different quality settings during mp3 encoding. I found out that there indeed is a connection between the quality settings of the mp3 file and the badness of the sound quality, at least to a specific degree.
The most important setting seemed to be the stereo setting. If I set a song to "Joint Stereo" its by far better than normal stereo, although not perfect, yet. That's very confusing.
Do you know the settings of the radio channels you can stream with good quality? Maybe that would be worth a test.
--Update--
So I had a predictably useless response from HTC. Namely 'have you tried unpairing and repairing' and 'your device may not be fully compatible, please check our website for a list of compatible devices'.
Useless indeed. Their compatible devices amount to 3 items! The phone is either A2DP or it isn't. There are no compatibility options - it's happening to us all.
So, I haven't mustered up the energy to continue onto the next pointless exchange of basic trial and error possibilities. No doubt their next reply will be "have you tried rebooting the phone"...
Anyway, I digress. I noticed something today. I put on a new album to my SD card and out of nowhere the skipping was worse than ever. Audiomanager is always on the lookout for new songs as you may have realised. When you have music playing, a small circle rotates to show the player is searching. During searches whether or not you've introduced new mp3's to your device, it always makes the skipping far worse. When my circle had come to a stop, then the audio was fine....with very rare pauses and skips.
Still there but much less obvious.
Well that's my latest update and I will continue my investigation. I wonder if this skipping occurs in other music programs? ie wmp or pocket player? Has anyone tried?
Great work, guys. Nice to see a lot of people looking for a solution. I REALLY want to get this A2DP thing working right, it is bugging me a lot, and I'd like it to be fixed when I'm going on vacation (I'll be driving to two straight days, and would love to listen to my own music then). That'll be in about six weeks, so there's still some time left.
I'll try SPB radio myself, see if that causes the same amount of skipping. It could be that it is not the BT link causing the skipping and pauzes, but the audiomanager itself. That would be a bummer, because fixing that is probably way beyond what we can do here, and we'll have to hope for a HTC fix or a custom rom with an older and better working version of the audiomanager.
In my search for possible solutions, I found the priority of the A2DP can be altered. I've added the reg Dword value "Priority256" to HKLM/Drivers/BuiltIn/BtA2dpSnd, with different values. If the value is too high (150+), nothing changes. Set it too low - I tried 60 - and BlueTooth fails to start altogether. I've now set it 149, and it seemed to work, but haven't done extensive testing to see if the skips/pauzes don't return. Will get back on that.
jonboyuk said:
--Update--
(...)
I wonder if this skipping occurs in other music programs? ie wmp or pocket player? Has anyone tried?
Click to expand...
Click to collapse
I've tried PocketMusic, qualitywise no difference. I don't remember if it had the same skipping / pauzes problem, but the problem for me was it doesn't work with the AVRCP, so I can't play/pauze/ff/rew with my remote, and having to use the screen while driving is a pain - I've mounted my device quite high. I was really hoping to use the inbuilt musicplayer

Sony MW600

For anyone who is interested i have a sony mw600 bluetooth headset which i have tried with different platforms on the HD2 with varying success.
However i now have wp7 mango installed and it works almost perfectly with the headset and is even showing the song titles.
Only issue i find is that sometimes when you use voice command it will call the number but not transfer the audio to the headset - but you can then transfer in call by just pressing the call button
mango seems to be running really well on the hd2 now.
many thanks to all the developers and everyone on this site
Hi redsufi!
In the matter of fact I am very interested that you have the MW600. Your timing also was perfect. I know it's a bit hassle but I wonder if you could help me with any of these things concerning the MW600?
GoogleBroughtMeHere said:
Hello!
To those of you with the MW600 here, I have a couple questions to you:
1) Can you use this as a microphone only device for let's say Skype and other voice communication programs (Ventrilo etc)? Meaning you wouldn't have any earbuds/headset plugged in the MW600 but only use its built in bluetooth microphone and listen through other (wireless) headphones that are plugged straight into the PC?
In other words: does the MW600 work as a microphone without having anything plugged into it? Could someone please test that? I would love to have a wireless mic on my shirt somewhere.
2) How good is the range inside a normal house? Does a single wall block almost all of it or can you wander around many rooms?
3) It was somewhat covered here but would you recommend it for its microphone quality or are there better ones around?
4) I realize this isn't under the Galaxy Tab section, but has anyone tried this device with that? How was it?
Thanks a lot in advance!
Click to expand...
Click to collapse
Hi there
I dont really use skype as its not available with windows phone 7 yet but with normal voice calls you can use the microphone wihtout the headphones attached so don't see that it would be a problem.
The range i think is 10metres and its fine through walls only when you get to the limit it just cuts off -
i find the quality of the mic and with listening to music is great
regarding the galaxy tab dont have one of these so you could try googling it
its a sony product so usually would only have full suppport of all the features with another sony product but all the functions work fine with wp7 on hd2 as well as wm6.5 - there were some issues wiht various android and nodo builds.
Alright, sounds good. Those helped a ton, thank you very much for the information!
Enjoy your MW600. I will soon probably too.
Works great with the Galaxy tab
Caller ID on WP7?
I have one(i.e. MW600)...It didn't display caller ID with WP7...rest is good ... does anybody know any fix or am I missing something.
I tried
DFT ,
elMInStER.blackSideSeven.1.12.7401,
BOYPPC-SHIFTPDA-Build 7.0.7392.0 -V5 , to name a few.

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