[SOLVED] Call Quality (unrelated to robot voice) - HD2 Android Q&A, Help & Troubleshooting and Genera

So I have installed Android on my HD2 that I picked up off of craigslist last week. All in all it runs excellent, but I have been plagued with 1 bug that I just can't seem to fix.
When I make or recieve a call, the call quality on my HD2 sounds great, but the person on the other line gets a reasonably loud amount of static on their line. In addition, the other party will also have a slight echo. With the echo and the static, it is pretty difficult for the other person to hear me, and have a normal conversation.
I have tested the phone when in WinMo and neither line has any static or echo, so it would seem to be a problem within the android software.
Here's what I am running:
Radio 2.15.50.20 (upgraded from 2.08.50, didn't affect call quality)
Latest Energy WinMo Rom
HD2ONE CM 6.1 Stable
Has anyone else had any issues like this? If so I would greatly appreciate your opinions.
edit:
I have been discussing the issues with a co-worker, and after a few tests we are pretty confident that the microphone on the HD2 is acting like it is in speakerphone mode (like the gain on the mic is cranked to the max).
Also, I tested the quality of the mic using the the sound recorder, and it sounds crystal clear.
edit 2:
After digging through tons of threads I finally found an answer. Anyone else having this issue take a look at this:
http://forum.xda-developers.com/showthread.php?t=860850 and
http://forum.xda-developers.com/showthread.php?t=805002
All that was required was the following commands in the terminal emulator
su
mv system/etc/firmware/default.acdb system/etc/firmware/default.bak
reboot and hopefully your problem is solved, if not take a look at one of those links above, you may need to copy over a new default.acdb

Related

Htc hd2 sound quality

When I talk on this phone, the sound is very poor... Although not too loud (like other complaints) but the sound crackles at high frequencies... The speakerphone is even worse...
Is anyone aware of some tweaks to improve communication sound on this phone?
Can AudioBooster be set up to work with the phone's sound not only the music player? Any other options ???
Thank you in advance.
Sui Generis said:
When I talk on this phone, the sound is very poor... Although not too loud (like other complaints) but the sound crackles at high frequencies... The speakerphone is even worse...
Is anyone aware of some tweaks to improve communication sound on this phone?
Can AudioBooster be set up to work with the phone's sound not only the music player? Any other options ???
Thank you in advance.
Click to expand...
Click to collapse
I think the high volume on this phone is artificially boosted over what it's meant to be, i.e. HTC have modified the audiopara (or something like that) in the Windows folder to try and boost the speakers sound over what it's meant to be.
(Something that ROM coookers figured out on the Diamond I think).
I think, maybe someone can reduce those values back to normal? The speaker will be a little quieter, but it won't crackle or distort as much.
Sui Generis said:
When I talk on this phone, the sound is very poor... Although not too loud (like other complaints) but the sound crackles at high frequencies... The speakerphone is even worse...
Is anyone aware of some tweaks to improve communication sound on this phone?
Can AudioBooster be set up to work with the phone's sound not only the music player? Any other options ???
Thank you in advance.
Click to expand...
Click to collapse
How big are these sound crackes...are these continous or at high volume ...
hi
i have the same problem , maybe ill try lower the sound down a bit? or opfully there might be a patch to fix this ?
same problem here
same problem... crackling noise in speaker. Many seem to have this :/
I have same problem and I hope someone will fix this.
Any news?
YES
Change radio!!! without 576MB RAM fix
sound quality
same here the sound quality from both the earpiece and loudspeaker is very poor quality ihave had my phone replaced 3 times and its the same on all , very dissapointing on a phone of this quality bearing in mind its main function is as a phone !!
Zenk_77 said:
YES
Change radio!!! without 576MB RAM fix
Click to expand...
Click to collapse
Which radio do you recommend? I have Leo_RADIO_2.07.50.27_2 and a terrible sound while on the phone.
Sound is to loud, impossible to lower volume enough. Much distortion even at lowest volume (which still is to loud). Bad sound in cable handsfree and BT handsfree.
Soundquality while playing music on the other hand is perfect in speaker, handsfree and BT handsfree.
Suggestions?
Since sound is often a pretty subjective matter, so I'd like to interject that the phone network only transmits from around 300 Hz to 3,000 Hz. Therefore the sound of a voice over your phone will never sound as clear and nice as it should, let alone like the 192 kbps-MP3-file you are playing
If it's worse compared to other phones however it's, as stated above, likely a problem with the radio. I use the 2.08.50.08_2 from [REF]The HTC HD2 Radio ROM Thread and have a quite decent quality.
I agree totally - if it sounds good or bad is individually. But, the sound quality in my HD2 is far worse than in my 5 years old SonyEricsson, and when I borrowed a Nokia the other day I was surprised how good (clear, crisp, distorsion free) a cell phone can sound.
I have a lot of distorsion and all too loud sound. Often I have to hold my phone 20 cm away from my ear just to avoid getting half deaf..
Thanks for the tip, I'll try the 2.08.50.08_2 Radio and hope for a better sound
you can try this hotfix...worked very well @my hd2
i got this from another forum.
little info: some users said that the soundlevel is now always set up to 100%...but try it on your own!
Köttel said:
you can try this hotfix...worked very well @my hd2
i got this from another forum.
little info: some users said that the soundlevel is now always set up to 100%...but try it on your own!
Click to expand...
Click to collapse
Thanks, trying it now, will report back after tomorrow's hardcore testing at work..
Return it if you can...
I had Nokia E71 before and it's speaker is fo another level better than HD2... BUT, question is: when I'm gonna use speakerphone on my HD2? ... almost never
Seems better, but a little to subjective at the moment. Will keep trying and report back!
Definitely better after the patch. Quite good actually. I have not seen any side effects yet, only clear sound, and better volume.
Thanks for the hotfix!
Will try it on my colleague's phone also now.
sound quality
I used the hotfix as well but it appears to have made no difference whatsoever to the quality of sound during calls , so my phone is going back to htc again and if it returns with the same issues i will ask for a replacement as due to the ammoun of posts on here this is a major flaw in the phone and a highly irritating one too , i love this phone but the audio quality during calls is appalling in comparison to all my previous phones .
After a couple more days of testing I found out that the patch gave no effect at all. BUT: I found out another thing: Even though the system volume is at lowest according to the meter, if you increase, you actually lower the volume. So, if you during a call first increase and then decrease the volume, it gets acceptable. Still to loud though.
So, it seems like what HTC really should do is to get the dialer use the sound mixer properly. Today it is obviously oversteering which creates distorsion.
this is a war we won't win
Stor-Anders said:
After a couple more days of testing I found out that the patch gave no effect at all. BUT: I found out another thing: Even though the system volume is at lowest according to the meter, if you increase, you actually lower the volume. So, if you during a call first increase and then decrease the volume, it gets acceptable. Still to loud though.
So, it seems like what HTC really should do is to get the dialer use the sound mixer properly. Today it is obviously oversteering which creates distorsion.
Click to expand...
Click to collapse
I've bought my HD2 back in Dec the 11th and since then I've been in contact with HTC about fixing this problem. They've given me a debug tool to run on my device, sent the logs twice and so far they've done nothing about it. I've given up. What I do for outgoing calls, while it rings I turn the volume all the way up and then all the way down before the other party answers. doing this you get a decent sound. Can't do much about the incoming calls,
As far as flashing different radios and roms... I've flashed about 30time already. tried all the possible radio/rom combinations but with only slight different results. Nothing to brag about!
the fix I attached helps a little bit!
If anybody finds and cure let us all know! please!!!!!

Crackling in voice calls

I know that other posts on this topic exist, but I've done a bit of digging and believe the problem doesn't lie with the speakers, so hence, new post. Sorry it's so long...
I've had my HD2 a week now and have noticed the same problem as some others here (it's the crackling during calls, it's driving me nuts, even on the lowest volume setting). But something about the "quality" of the distortion got me thinking (ie it didn't sound quite like what I would expect from a speaker taken beyond its capabilities).
I therefore tried a few different things to try and see where the problem was:
First I needed to identify if this was source related, therefore I tried playing different things through the earpiece. I downloaded audioroute from xda (I forget where) and tried routing all sorts of things through the earpiece. I tried music, skype, video and normal voice calls and the only one that caused crackling appeared to be the normal voice calls. I made sure my sources were loud enough to rival the loud calls, but no matter how hard I tried, it was only the calls that caused crackling (at least the type that was p****** me off)!
Next I tried to see if it mattered which output I routed the sound through. I tried the earpiece, the back speaker and the headphone jack (with both the supplied headphones and some good quality Sennheisers). Again, I found that all sources, other than the normal voice calls, were fine. What surprised me though, was that the normal voice calls taken through the headphones crackled too (not just through the earpiece and back speaker).
Finally, I tried to determine the effect of volume on the crackling. To my surprise, I found that with my Sennheisers, the crackling did not appear to get worse with increasing volume. I chose the Sennheisers here because they could handle volumes way in excess of what the phone could produce.
These tests lead me to conclude that the audio path including the amplifier and speakers in the phone, may not be to blame. I also believe the problem is voice call specific. My understanding of what happens to a normal voice signal is somewhat limited, but here's what I think. I reckon the digital signal processing in the decoder for the phone signal may be to blame, as it has to pass through this BEFORE moving through the rest of the audio path (the volume independence was the clincher). This does provide some hope of a fix though, since the decoder is probably in software so can be modified. I'm thinking radio ROM here though, so not something we can hope to mod ourselves.
Anyway, sorry for the long post, if you're still with me, what do you think? Am I talking a load of bull. Can any of you replicate what I've found?
Interesting post, I have the same issue with my HD 2, definitely gone backwards from my previous phone which was an N95, I'm always adjusting the volume to reduce the distorted crackle when talking to people, the speaker phone is borderline crap as well, at least with the N95 you can actually hear a little bass.
when you say crackling do you mean like the person talkin on the other line says your voice gets messed up ? because this has been a problem with my hd2 since i baught it...about 1 month ago and im running 1.66 latest official WWE rom....
I had this problem with my first HD2 and also with two replacements phones from my provider T-Mobile in the UK. These phones were running ROM 1.43.
I have found the problem is completely fixed (on the same handset), by updating to the new 1.66 ROM.
I didnt really understand how to flash my phone with a new ROM despite reading a few posts. However, after following the thread (The Complete HSPL Video Guide - 621930 - in the HD2 ROM Development forum), I realised it was very easy, and had successfully flashed to the new ROM within an hour.
I have had and still have this problem. I havecontacted HTC, flashed different ROMs, and have had a replacement but the problem still persists. I am learning to live with it as the good out weigh the bad.
Thanks for all who have replied so far. I like the phone too and don't intend to change to any other, but may consider sending it back for repair. I also have a rattle (not the volume switch though, this is coming from near the rear speaker, this definitely doesn't seem right). I run the 1.66 WWE official ROM and it hasn't fixed the problem for me when I moved from 1.48 which it shipped with.

Volume on my incredible is too loud :(

I just got an HTC incredible, but it's crazy loud - the lowest call volume setting is loud enough that it's a little unpleasant to talk on it.
Are there any technical fixes I could do for this? I'm running a rooted stock ROM right now, and I have adb working although I'm not completely sure what to use it for other than installing apps.
I would imagine that there must be some kind of configuration file somewhere which sets overall speaker gain. Any thoughts?
Hmm, the only solution I can think of is to go with a bluetooth headset, but maybe someone smarter can provide a cost-free solution.

My #1 concern with Android builds at the moment: Volume.

I know at first many complained of speaker volume being too low. So developers did something. What exactly was done?
I have noticed 3 things with all builds I have tried:
1. When making/recieving calls the initial volume is random, either too soft or too loud. The volume indicator (one that comes up when volume buttons are pushed) never seem to relate to the actual volume level. Often the volume indicator is all the way down while the volume is all the way up. And in order to turn it down I have to adjust the volume indicator all the way up and then move it back down which works. Weird.
2. In-call audio sounds bad compared to WinMo. It sounds harsh, like its very slightly distorted. Its as if there are audio/eq settings in Android that don't match the hardware.
3. Finally, why this is my biggest concern, I blew out my outside speaker when on speaker phone in Android (there was a little pop sound in the middle of a call, I could not hear rings or anything after that, in WinMo as well). I am starting to see others report this. Luckily I got it replaced. But I am now scared to do speaker phone in Android. I have used speaker phone with WinMo plenty with no issues.
I used to have inconsistent sound issues in some builds, I used Louder Volume Hack from the market to modify the volume for headset, bluetooth and in call boost (Range) and it works pretty fine. As for the external speaker, I can't really say... I haven'T noticed.
I have this problem too! My speaker phone blew up while I was using Mdeejay eVo Sense v. 2.3 rEVOlution. I'm pretty sad because I can't even get notifications anymore or rings. I have to leave my phone on vibrate. Speaker doesn't even work on winmo either. I tried task 29, new winmo rom, new android rom and tried to factory reset and nothing work. I'm pretty sure my speaker is done.
Froystone 2.3 on 7.6 the sound volume was great. No problems however going to evolution 2.3 I notice I struggle to hear on some calls.
i get great sound in skinnyevo by phireMOD. havent tried speakerphone though, doubt ever will after reading this thread.
I haven't had any issues with my speaker.
Sent from my HTC HD2 using XDA App
My number 1 concern too.
I use the HD2 for navigation and playing around. I have a e71 for phonecalls.
The speakervolume with the latest kernels is an absolute dissaster for me.
I don't see any developers reacting on this issue reported by several people which frightens me a bit.
I dont mean to curb people from using their speaker phone. I am just one experience. But I wanted to see if anyone else had the the same problem. Particularly the not-so-great sounds issue in general.
What build was running when You had speaker failure ?
Try the [UPD][BUILD][01.11.10]|<<Mdeejay FroYo Sense Series>>|2.29.405.2\
Next Sense 2.7
Very loud. I had the same problem but this one is 1/2 volume just to be tolerable.
Jmarley said:
What build was running when You had speaker failure ?
Click to expand...
Click to collapse
Mattc froyo sense 1.8.
alantak said:
Mattc froyo sense 1.8.
Click to expand...
Click to collapse
Ok, not one I tried but I hope this turns out to be bad luck and not a general problem !
You say others have had a similar problem ?
from a electronics point of view an impedance miss match speaker/amp would generally damage the amp before the speaker, speakers normally let You know if You are "over driving" them a good while before they burn out
I highly doubt the speaker loss is a general problem. But the less-than-stellar sound seems to be a general problem, and I am wondering if they could be related.
If I had the time I would dig into the builds myself to see how the sound settings are handled n such.
I just put XAndroid 2.2 (Froyo) on my Tilt2 and got it working - I always use the speaker phone when making calls... was very exited to see that it works - until I realized that when the speaker is on in a call - I can hear them - but they cannot hear me. If I turn off the speaker - we can talk again - but for some reason - speaker for me is mute for them... not sure where to post this as a possible bug.
I used this package: XDANDROID.2.2.1.AOSP.FRX03.21.11.10.FULL_PACKAGE
on an AT&T Tilt2 (Rhodium) running Windows mobile, I believe 6.5.
thanks for your patience - this is a big place - and it hard to find my way around.
updated my zimage and the speaker now works
thank you to everyone!

ACER A500 Microphone Fix?

Hi, guys Ive been looking for microphone fix on my A500 , when i record any video it has this loud background noise...which in fact my room is silent , also when I'm recording videos outside & using Skype . Im using HC 3.2.1 rooted with thor's CMW ver 1.5 . I been searching the forum for a fix but i cant find it or so as I read that they will fix this issue on HC 3.2, but still i get this issues . Is this a Hardware problem or OS issue?
Also can I still return this tablet to walmart & get a refund? I already exchange the first 1 cuz It got a charging issue. SO basically I'm returning an exchange tablet. It hasn't been 14 days yet. as they mentioned for returns & refunds.
Thanks.
hatyrei said:
Hi, guys Ive been looking for microphone fix on my A500
Click to expand...
Click to collapse
Funny, I was coming here to ask for help about something similar...
In my case, I have a refurbished A500 which has been awesome so far, with the exception of the microphone. It records terribly, lots of noise and distortion in any recording I make (using Recorder as the test app I made a short .amr recording which I attach 7zip-compressed).
A friend has an A500, and it doesn't seem to display this issue. While it's no deal-breaker (I can live without recording audio...playback of tv shows loaded on the card works better-than-fine!), I'm wondering if there's anything I can do to fix it, or at least make it a little less...noisy.
I believe the culprit has to do with the speakers creating feedback. The workaround is to use headphones. Hope this works for you.
Take a look here:
http://forum.xda-developers.com/showthread.php?t=1065219
tabasco22 said:
Take a look here:
http://forum.xda-developers.com/showthread.php?t=1065219
Click to expand...
Click to collapse
I did read that entire thread, which only tells me there are multiple unrelated issues around audio recording on the A500...these issues seem to get all mixed-together in that thread, with people who only care about Skype focusing on that and cross-talking to people who have completely different recording issues. I was hoping this thread could avoid the whole need-to-use-Skype distraction and focus on the specific issue of seemingly over-driven recordings. (With the refurb, I'm also out of the whole keep-complaining-to-acer-until-they-do-something-to-fix-it focus there seems to be on that thread. I can't really complain, and any warranty I had expired a while ago.)
The earlier suggestion to use a headset is, however, something I should have considered first (even read in the earlier Skype-centric thread), and am a little embarrassed I didn't. Sometime this weekend I'll pick up a cheap 3.5 mic/headphone set and see if that makes any difference. If it does, and the recordings though it are cleaner, I can be more comfortable it will work for one thing I care about...using the A500 with the SquareUp CC processor.
Mic - Solution for me.
Problem: Microphone recordings sound terrible. Soft, Choppy, Mechanical, like a bad cell call, bathroom (NOT the severe helicopter sound as others have reported). My hypothesis like others have suggested, seems to be noise cancellation issues. Especially since the issues vary app to app. These mics are right beside each other and I assume they're pretty much hearing the same thing, and the rear is trying to cancel what it hears, which is the same as the front! End result being filtering what it hears, ie filtering everything? FAIL.
Test 1: Using Recorder and Skype Test call, I tested different distances talking to the front/back, covering front mic, covering back mic, case on, case off, headphones plugged in/out, etc. In some instances you could hear some, and other hear nothing, some sound ok, some sound horrible. I wasn't satisfied with ANY.
Test 2: Popped off back of tablet and disconnected REAR facing mic. They are side/side, make sure you disconnect the correct one, the one with the diaphragm pointing out. Simple connector. Then tried Recorder/Skype Test call and both sounded Excellent. I have not tried a call with Skype, just the test. EDIT: Tested a real Skype call last night. No sound issues on my end or other end.
Conclusion: Removal of rear mic provided the best quality. There is zero filtering/cancellation/etc.
Gotta try this
Hmm!
Should of thought of this myself. Going to give it shot and post back later!
Unhooked the rear mike --it helps the front m ike is usable now. Not perfect but works.
So for me
1 Run Flexreaper ICS by Civato = better mike
2 Drill hole for front mike = not as muffled
3 Disconnect rear mike= almost as good as a phone but not as sensitive.
Okay on recording and search but Skype still noisy without headset.
Damn connectors were a pain to unhook.
appoaf said:
Problem: Microphone recordings sound terrible. Soft, Choppy, Mechanical, like a bad cell call, bathroom (NOT the severe helicopter sound as others have reported). My hypothesis like others have suggested, seems to be noise cancellation issues. Especially since the issues vary app to app. These mics are right beside each other and I assume they're pretty much hearing the same thing, and the rear is trying to cancel what it hears, which is the same as the front! End result being filtering what it hears, ie filtering everything? FAIL.
Test 1: Using Recorder and Skype Test call, I tested different distances talking to the front/back, covering front mic, covering back mic, case on, case off, headphones plugged in/out, etc. In some instances you could hear some, and other hear nothing, some sound ok, some sound horrible. I wasn't satisfied with ANY.
Test 2: Popped off back of tablet and disconnected REAR facing mic. They are side/side, make sure you disconnect the correct one, the one with the diaphragm pointing out. Simple connector. Then tried Recorder/Skype Test call and both sounded Excellent. I have not tried a call with Skype, just the test. EDIT: Tested a real Skype call last night. No sound issues on my end or other end.
Conclusion: Removal of rear mic provided the best quality. There is zero filtering/cancellation/etc.
Click to expand...
Click to collapse
I did and I agree this is a fix if you want to use recorder, Skype, talk, tango, etc. But I also learned to forget using the video camera UNLESS you have it using the rear camera (this is one you use by default when you Skype). Looks like it uses the microphone that points in the direction of the active camera.
So I would suspect the noise cancelling algorithm settings are to blame for poor sound recordings.
I solve this issue by using my stereo earphone with mic that came with my Nokia phone. I have tried a bluetooth stereo headset with mic and another wired earbuds with mic, there was either still a lot of noise or the sound level was very low. Basically, it is the same as using a headset. Finally I found one earphone with mic that works well. I actually have two of the same earbuds from 2 identical Nokia 5230. I tested them on two Iconia A500 with voice chat and video chat, it works very well both ways. I have also tried to turned off the Dolby Mobile as suggested by someone. It actually makes it worse and the sound level went down a lot.
acer a501 microphone fix
hi all
today i finally got to the bottom of the microphone issue
versions 3.x had some issues with the mic that cant be fixed - tried different internal and external mics but no good - i thought it was a hardware issue
and not able to solve but after ota update of ics the external mic is perfect - crystal clear and no noise and heaps of level.
the internal mic is crap so i decided to change the microphone with anything i could find - it has to be electret mic.
I had a few lying around and some worked well and some did not - i eventually found one that worked really well will heaps of level - the
only prob was that it was twice the size of the original.
i had to cut some of the plastic away but eventually got it installed.
The internal mic works great now - much better than the muffled one that came with the unit.
I left the second mic connected as it seems to make no difference in or out.
So what i have found -
firmware on 3.x no good for mic
ics makes mic work well if you use exeternal.
internal mic - get rid of it as it is useless.
hope this helps someone as i spent lots of time trying to fix this
OK but...
jzaiter said:
hi all
today i finally got to the bottom of the microphone issue
versions 3.x had some issues with the mic that cant be fixed - tried different internal and external mics but no good - i thought it was a hardware issue
and not able to solve but after ota update of ics the external mic is perfect - crystal clear and no noise and heaps of level.
the internal mic is crap so i decided to change the microphone with anything i could find - it has to be electret mic.
I had a few lying around and some worked well and some did not - i eventually found one that worked really well will heaps of level - the
only prob was that it was twice the size of the original.
i had to cut some of the plastic away but eventually got it installed.
The internal mic works great now - much better than the muffled one that came with the unit.
I left the second mic connected as it seems to make no difference in or out.
So what i have found -
firmware on 3.x no good for mic
ics makes mic work well if you use exeternal.
internal mic - get rid of it as it is useless.
hope this helps someone as i spent lots of time trying to fix this
Click to expand...
Click to collapse
HoneyComb 3.2 disconnected the rear microphone, Resulted in Better Quality without helicopter noise specially better for skype Etc.
Video recording still Just hardly acceptable. but quality is still bad.
Wont buy from acer anymore.

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