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I'll ask this again....by changing the bit pool ....what does this do????
Max bit pool and bit pool????
I have no idea exactly what it does, but I've fiddled with a2dp enough to know that in my experience, turning the bitpool off, or deleting the registry entry greatly reduces skipping while playing music through a bluetooth headset.
Hi there
last week I got a new Samsung Galaxy S GT I-9000, and although I am generally happy with it, I am very disappointed with the ADC recording quality.
As others, I noticed it after asking a friend to film me playing at a gig, and the audio was completely unuseable.
After digging around and some experiments I found so far 2 serious issues:
1 - As others pointed out, the microphone input level seems to be unadjustable. I have digged around in the hidden menus, where I could find a way to adjust the input level for speech calls but not for audio recording.
(Audio -> Handset ->I2S1 Rx Gain, although I am not sure if the signal clips before or after that point when doing audio recording ).
2 - This is an issue I have not seen documented anywhere: no matter what application I use, I am not able to record at any higher sampling rate than 22.050kHz. This is with both handset and headset microphone. But what is probably worse, is that the signal is not (or not very well) low pass filtered (antialised) before being downsampled!! I tried recording a frequency sweep from 0 to 16kHz, and the first 8kHz (11025 Hz inn 22050 Hz sampling rate mode) were Ok, the next 8kHz (11025Hz) where aliased like hell. Try record a 10 khz and a 12 kHz tone at 11khz adc rate and you will get a 10khz back in both cases, almost at the same amplitude ! Not sure why I can't acces 48kHz, as I read somewhere that the audio chipset should support that.
Anyone know if there is a fix for either?
Just uploaded the recorded sample for reference.
This was a 100Hz to 16kHz frequency sweep of 30 seconds.
The test setting was far from ideal (just played it out on my PC) but it gives an indication. Note that aliasing is so bad that even harmonic distortion gets aliased, and it becomes really loud when all harmonics get imaged back to the same frequency by the aliasing process. If the situation is not fixed, there is no hope for high quality audio for the galaxy... Anyone knows if with 2.2 upgrade this will work?
Do HTC desire or wildfire have similar issues? I am seriously considering swapping before my 14 days trial runs out: no point in having HD video (main selling point of the phone) if the audio is close to unuseable (and I don't want to go to Apple just yet)
The voice quality on my Galaxy S is really bad. I've had several people say to me that on calls it's difficult to understand what I'm saying and that the sound is either muffled or distorted.
I tried some recordings with the voice recorder app and these two don't sound clear at all.
Could this be caused by the same thing you're mentioning, or do I have a problem with my phone?
How do other people find the call quality (that is, someone listening to you calling *from* your Galaxy.)?
Meza1 said:
The voice quality on my Galaxy S is really bad. I've had several people say to me that on calls it's difficult to understand what I'm saying and that the sound is either muffled or distorted.
I tried some recordings with the voice recorder app and these two don't sound clear at all.
Could this be caused by the same thing you're mentioning, or do I have a problem with my phone?
How do other people find the call quality (that is, someone listening to you calling *from* your Galaxy.)?
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I think this is related to the same bugs mentioned as the subject of this thread.
BTW, it looks like HTC desire has the same issue wrt video recording, so it might be an Android issue rather than a Samsung one...
You can find some additional details in the modaco forum, on thread samsung-galaxy-s-i9000-mic-sensitivity-recording.
(can't add the link here)
ilcello said:
(...)
2 - This is an issue I have not seen documented anywhere: no matter what application I use, I am not able to record at any higher sampling rate than 22.050kHz. (...)
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After flashing the european firmware JM1 from Kies I am able to record at 44.1 kHz now!
Haven't checked aliasing yet.
I'm on JM2 and this is a topic that I would very much be interested in.
Sent from my GT-I9000 using XDA App
There is another older post but still active here:
http://ip208-100-42-21.static.xda-developers.com/showthread.php?t=721069
Same problem gggrrr
I recorded a friend of mine singing last night and the audio on the video is terrible and i mean really terrible, the picture is fine but the audio, nope.
I have heard that there is a way to load in a new kernal to be able to change the sensitivity of the mic but i'm not sure if that is the way to go or not, i just want to be able to record video that sounds good, please help.
Flash a kernel with voodoo sound. Then the audio quality will be amazing
Sent from my GT-I9000 using XDA App
Read this thread
http://forum.xda-developers.com/showthread.php?t=806195&page=103
I've used voodoo sound ever since I go this phone. You don't even have to flash a kernel anymore, supercurio's made it even easier, as long as you have root just go onto the market and buy Voodoo Control Plus and unlock the true audio capabilities of your Galaxy S
I started out with JPY and using Tape Machine I've been able to record just fine at 44100Hz. Same with JVB.
Thanks for that, i installed voodoo control plus, really easy to do, at a gig tonight so i will record and see what the sound is like on the video, thanks again
russellhearn69 said:
Thanks for that, i installed voodoo control plus, really easy to do, at a gig tonight so i will record and see what the sound is like on the video, thanks again
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Thank supercurio not me
I just acquired a Cricket Zio yesterday and have been playing around with it for the past 24 hours or so. Got the CWM "easy" working, reset it to the factory 2.2.1 stock Cricket ROM (from this thread) and then installed OpenZio 2.1.2 without any issues. Runs fine at 729 MHz, again without issues.
But the one thing that's disappointing me - and I mean seriously disappointing me - is the absurdly low audio volume. Videos, music, streams, doesn't matter, it's just insanely low. Now, before anyone jumps to conclusions, I've got an HD2 that I've tweaked to hell and back oh, hundreds of times (currently the one listed in my sig), and we all know the HD2 can really crank out the sounds without problems. I have a set of Koss earbuds (IEMs, they go into the ear canal and seal it off), and I've got a set of Koss KSC-75 earclips (my primary listening device).
With either of those plugged into the HD2 or any other device I own, like my Dell Axim X51v, my original Motorola Droid, and several other devices including an iPod touch too, those earbuds and earclips bring out all the sound quality the device is capable of, without issues.
But I plug them into the Zio and it's... well... meh. With bleh on top of that...
I located the Louder Volume Hack in the hopes it would help, but it doesn't matter which version I try or on either ROM (stock Cricket or OpenZio) it just FCs and never runs.
So my question is: for those people that I've read posts by that say the Zio has 'excellent audio quality' I have to ask: am I missing something someplace?
I've enabled Stagefright (on the stock Cricket ROM and on OpenZio also), makes zero difference in audio quality or audio volume, although it does seem to smooth things out a bit. Let's face it: I don't know why people keep calling this phone "a beast" 'cause I see no evidence of it. But for $50 and a pure fully working fully functional Android phone, it's doing just fine.
Yes, I wish it had multitouch, yes I wish it was bigger, and yes, I wish it was faster (even overclocked and with all the tweaks I've been reading about it's still rather perversely sluggish even though the Quadrant scores put it above the original Nexus One, go figure).
But what I'd really love is to do something about that audio, boost it up in some manner that I might not be aware of just yet. The HD2? Oh, man that can push my KSC-75 earclips so high I can't tolerate it.
And again, I understand this is actually a very low quality Android phone, but can anyone make any suggestions that might help with the low audio volume issue? All the settings are maxed out and it's still just incredibly low (and yes, it's fairly tinny with hardly any bass at all but that's secondary to the actual volume itself needing some healthy raising).
If anyone has any advice, I'm listening... figuratively speaking.
I have noticed that after i flashed to openzio, awesome rom btw my volume is lower then what it was with the stock rom. Like for an example if i put the ringer volume to one notch below half way the ringer will not sound and the phone just vibrates. With the stock rom i can turn the ringer all the way down to it activates the vibrate only mode and then go up 2 notches and the phone would still play the ring tone on the incoming call. With openzio the volume meter has to be at least half way or over half way for the ringtone to sound.
Hi, this is my first post
I'm doing a work about sound frequency so i downloaded this "speedy spectrum analyzer" app (definitely worth its price, but you can easily find it...you know how...) and started testing with some youtube videos about human hearing frequencies (i cant post links but it's named "hearing test HD" on YT) the app is very accurate but... around 7.5 Khz the graph peak dies, seems like the microphone can't handle upper frequencies. The fact is that i need measurements from 10 to 20 Khz.
The thing i want to ask is if it is the microphone that cuts at 7.5 Khz or it's the OS that cuts noise and stops hearing at that certain frequency.
I've got nexus one with CM10.1 VJ Jelly Bean 4.2.1 v4.7
Also i would like to know if i can do anything to modify frequency values from my phone.
Last but not least i would ask you to try yourself if your Nexus One, maybe with another ROM, can handle some different frequencies.
I'm sorry for my english, i'm italian. Thank you in advance
P.S.: If something in this post sounds incomplete or wrong, feel free to correct me everytime.
Couple of questions. So far, I absolutely love my Nexus 6, however I have a couple of questions/quibbles.
Firstly, the volume on this thing. How quiet/loud is it supposed to be? When it's in the low end scales it's very, very quiet, middle is passable, loud is good, but is the quieter levels supposed to be so quiet? I compared it to an iPad 3 and that speaker is louder overall, I assumed the Nexus 6 would be louder everywhere (highest level very loud, lower end quiet but loud enough to hear) than the 3 year old iPad?
Secondly, the microphone. I'm a little confused by it. In videos I've recorded the mic volume is good enough, but using WhatsApp I things I've recorded sound quiet, at least compared to iPhone recordings (friends have iPhone's), and then it's slightly better in "Easy Voice Recorder", unless I whack up the gain on it.
What's the deal? Or are all Nexus 6's like this?
Also, what's the battery life supposed to be like?
I'm on fairly low brightness, auto adaptive brightness or whatever is off. Unplugged at 8am, its been 12 hours. On 22%. Used the phone 20mins browsing internet going to work, stuck in my drawer till 1pm with occasional checks, 20mins used it playing Jetpack Joyride/internet browsing, home from about 4, been playing music on and off through Google Play, couple of YouTube videos, browsing the web etc, nothing too intensive, and I'm on 22%. Does that sound right?
Anybody?
Yeah, you my friend have had the 2 most common problems with the nexus which come standard with the device. For battery, you need to get a kernel with intelliplug and enable it over the stock mp decision. You can even overclock with battery life better than stock. (Like me) For audio, try to find a kernel with faux sound, download viper4android for music, and change some values around in mixer.paths.xml. You need to be rooted with a recovery first before any of this. The problem with video recording is that it is also recorded in mono instead of stereo. Weird but I have been able to fix all of these problems now. If you need any help, quote me. Please give a thanks if I solved your issues.
Thanks for reply.
So what I've described aren't necessarily problems as such, they're just standard on the phone? The battery is okay it's just not amazing. I'm on 50% now, unplugged 14 hours ago, used it for a bit of internet browsing, texting. Was on standby for about 9 hours and was on a call this morning for about half an hour and then I've done some more browsing and texting today. I'm also on adaptive brightness.
Does this sound right?
And the microphone, if I use it on WhatsApp, people keep saying it sounds clear, it's just very low. But again, if I record a video it comes through fine.
Is this normal to Nexus 6's or is there something wrong with my mic?
really low here to in whatsapp, can somone please help us? i do not want to have to send my phone back!
OvEr_KiLL said:
really low here to in whatsapp, can somone please help us? i do not want to have to send my phone back!
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Same issue here. The mic volume in all IM apps like whatsapp, Skype and etc are very very low. However the voice in the recorded video is OK.
helloworld1 said:
Same issue here. The mic volume in all IM apps like whatsapp, Skype and etc are very very low. However the voice in the recorded video is OK.
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yep thats what im getting....anyone else?
Yeah that's really annoying. The problem is, that the N6 use the mic at the bottom on the rear site. If want to make a videochat with the frontcam it's really stupid.
Normally it use the rear mic to reduce background noise. But this seems to work only with telephone calls?
Did anyone ever solve this problem?
Would a Bluetooth headset be a "fix"?
wrsg said:
Did anyone ever solve this problem?
Would a Bluetooth headset be a "fix"?
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It is default mechanism.
You can install 3rd party Sound recording app and forward recordings to them.