Database Develop

[Q] Bad sound quality in phone calls

Hi.
I saw several threads on the matter but with no solution and they're from September 2010... maybe some new info has emerged...
I just bought the Captivate (not using with AT&T). It was with android 2.1 and with a decent outgoing sound quality.
I upgraded to 2.2 (installed [ROM] Obsidian V4.2) and now the outgoing phone calls are with bad quality.
The incoming sound is perfect. People tell me I sound bad as if from a very distant and deep submarine... I tried re-surfacing but alas it didn't help...
Is there any solution? driver? another ROM proved with quality? since at first it worked fine I imagine it's a software not hardware problem.
Thanks in advance.

I found that most of the newer 2.2 roms are based on the I9000UGJK3 modem and kernel which allows us to have HSUPA, but call quality suffers greatly. Until theres a source released for us cappy users, we're stuck with this issue. I went back to cog 2.16 because of that

Actually that new modern you mentioned is part of my daily driver. You just have to make sure you paiute the current modem with the correct rom.failure to do so will result in the results you have received.
Sent from my SAMSUNG-SGH-I897 using XDA App

and how do i do so?.... yeah I'm somewhat of a noob...

What the what??
adamholden85 said:
Actually that new modern you mentioned is part of my daily driver. You just have to make sure you paiute the current modem with the correct rom.failure to do so will result in the results you have received.
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
I am also having horrendous call quality issues with that I9000UGJK3 setup.

So basically no one knows what can be done and I'm stuck with an amazing phone that can't be used as a phone....
Not able to use warranty - bought in the states and not living there....
ANY ideas???

Random76 said:
So basically no one knows what can be done and I'm stuck with an amazing phone that can't be used as a phone....
Not able to use warranty - bought in the states and not living there....
ANY ideas???
Click to expand...
Click to collapse
Obsidian hasnt been updated in some time. Try http://forum.xda-developers.com/showthread.php?t=863776, this rom is my fav so far, call quality much better, not great but better, FAST and has all the eye candy plus more. remember to flash to stock first, JF6 then master clear, use this http://forum.xda-developers.com/showthread.php?t=731989

perfect
I finally installed this one
http://forum.xda-developers.com/showthread.php?t=848115
sound is perfect.

Do any custom ROMs support the Audience chip?

Disclaimer: I am still running stock 2.1. Still in "look before you leap" aka "educate thyself" mode on here. Read read read...
Anyhow, one thing I've searched for and not really seen talked about much is the the fact that the Captivate, unlike other Galaxy S models, has a unique voice-processing chip... the A1026... dubbed the "Audience" chip:
http://www.audience.com/about/1026.php
Most of the popular ROMs these days (aside from Cognition, which seems to have stopped development in-favor of Perception, which is also I9000-based) are I9000-based, and the I9000 didn't have the Audience chip. Combine this with continued mention of sound-quality issues with the mic (such as this video review of Perception 10) and I have to wonder if they're related.
I searched for threads about Audience and hardly found anything (beyond mention that since the chip wasn't used, the processing ends up having to be done by the modem), nor did I see any mention of it in any of the ROM-specific threads. So I created this thread to ask: Do any of the ROMs specifically add in support for this unique part of the Captivate's hardware, or are we sacrificing that and totally missing out on it? If it's not being used, is there no way to incorporate this back in? So much progress has been made merging other Captivate-specific things back into the I9000 ROMs (most-recently, haptic feedback on the Home button) that I hope this can be done sometime.
Thoughts?

I honestly don't know. It doesn't seem like it is a high priority.
I just wanted to comment on the lack of development on Cognition... I don't think DG has favored it over Perception, I just think there isn't much more that can be done with it until the Captivate finally gets an official gingerbread.

rootnik said:
I honestly don't know. It doesn't seem like it is a high priority.
I just wanted to comment on the lack of development on Cognition... I don't think DG has favored it over Perception, I just think there isn't much more that can be done with it until the Captivate finally gets an official gingerbread.
Click to expand...
Click to collapse
.......yeah he said gingerbread

rootnik said:
I honestly don't know. It doesn't seem like it is a high priority.
I just wanted to comment on the lack of development on Cognition... I don't think DG has favored it over Perception, I just think there isn't much more that can be done with it until the Captivate finally gets an official gingerbread.
Click to expand...
Click to collapse
.......yeah he said gingerbread

Bump, since this really didn't get sorted out. Does anyone know?

sremick said:
Bump, since this really didn't get sorted out. Does anyone know?
Click to expand...
Click to collapse
Cognition 3.04 has the "Noise Suppression" option, but I do not know whether it is hardware or software-based. At one point the thread said it was software-based, and now the thread makes no mention of it at all.
I've personally just decided to go and hack apart the stock Rogers 2.2 ROM to my liking, because my girlfriend complains she can't hear me due to background noise every time she calls me on seemingly any ROM.

Auridran said:
Cognition 3.04 has the "Noise Suppression" option, but I do not know whether it is hardware or software-based. At one point the thread said it was software-based, and now the thread makes no mention of it at all.
I've personally just decided to go and hack apart the stock Rogers 2.2 ROM to my liking, because my girlfriend complains she can't hear me due to background noise every time she calls me on seemingly any ROM.
Click to expand...
Click to collapse
Evidence seems to indicate that you must run a Captivate ROM, kernel, and modem in order for the Audience noise cancellation to work correctly. It probably is not necessary to use a Captivate modem, but there are other incompatibilities that will cause problems if you do not use both kernel and modem from the same source (Captivate or i9000). The audience chip requires drivers that are in the kernel and ROM support in the phone application to enable noise cancellation.
It appears that the Google Nexus One also uses an Audience chip, so I posed the question in another thread asking if it can be back-ported (since the source and binary drivers are all available for the GN1).

I have been wondering the same thing about the A1026 chip. From reading some of DesignGear's comments in other threads he says that the Rogers Captivate does not have the A1026 chip which means that Cognition 3.04 is not using it. Then the next question is does the Armani Captivate or the Chinese Captivate have the A1026 chip?

+1 to the Armani captivate question. Would Andromeda possibly have this? Personally I have been asked if I switched phones by callers when I flashed Andromeda. They say it sounds a lot clearer. Not louder, but clearer. huh.

nbarsotti said:
I have been wondering the same thing about the A1026 chip. From reading some of DesignGear's comments in other threads he says that the Rogers Captivate does not have the A1026 chip which means that Cognition 3.04 is not using it. Then the next question is does the Armani Captivate or the Chinese Captivate have the A1026 chip?
Click to expand...
Click to collapse
According to nkrick's testing, the Rogers 2.2 does have noise cancellation, it just doesn't work on the Rogers Captivate.
shiftylock said:
+1 to the Armani captivate question. Would Andromeda possibly have this? Personally I have been asked if I switched phones by callers when I flashed Andromeda. They say it sounds a lot clearer. Not louder, but clearer. huh.
Click to expand...
Click to collapse
I don't believe it does. It doesn't have the option in the settings menu, anyway.

Ok I have Cog 3.4 and it does have Noise suppression and i have tested it by calling someone from a noisy location and then turned it off and called them back and they said the could tell a big difference with it turned off. So from my testing it works fine.

edog45 said:
Ok I have Cog 3.4 and it does have Noise suppression and i have tested it by calling someone from a noisy location and then turned it off and called them back and they said the could tell a big difference with it turned off. So from my testing it works fine.
Click to expand...
Click to collapse
Where is that option?
Maybe Supercurio should look into this

sgh-897 or sgh-896?
edog45 said:
Ok I have Cog 3.4 and it does have Noise suppression and i have tested it by calling someone from a noisy location and then turned it off and called them back and they said the could tell a big difference with it turned off. So from my testing it works fine.
Click to expand...
Click to collapse
Do you have an AT&T captivate (897) or a Rogers Captivate (896)?

edog45 said:
Ok I have Cog 3.4 and it does have Noise suppression and i have tested it by calling someone from a noisy location and then turned it off and called them back and they said the could tell a big difference with it turned off. So from my testing it works fine.
Click to expand...
Click to collapse
I can corroborate edog45 findings. I just wanted to let you guys know that the noise suppression option in the Cognition 3.04 ROM definitely makes an impact on call quality with my SGH-i897. I don't know if its hardware or software based but with back to back calls with my wife she noticed much lower background noise with the option on. I am running a pure Cognition 3.04, no different kernels or modems.

I have an AT&T captivate and the option can be found under call settings---Voice call.

nbarsotti said:
I can corroborate edog45 findings. I just wanted to let you guys know that the noise suppression option in the Cognition 3.04 ROM definitely makes an impact on call quality with my SGH-i897. I don't know if its hardware or software based
Click to expand...
Click to collapse
Bingo. While this setting appears in other phones, it is unclear whether this is referring to enabling of the A1026 Audience chip, or whether it's some sort of software-based audio processing.
Considering we have the source for the A1026 Captivate driver, I don't get why it can't be incorporated into the I9000 ROMs built from source...

sremick said:
Bingo. While this setting appears in other phones, it is unclear whether this is referring to enabling of the A1026 Audience chip, or whether it's some sort of software-based audio processing.
Considering we have the source for the A1026 Captivate driver, I don't get why it can't be incorporated into the I9000 ROMs built from source...
Click to expand...
Click to collapse
Which source code are you referring to? i897 Eclair 2.1 source code or Nexus One Froyo 2.2 source code? I didn't think rogers or armani Froyo 2.2 source code had A1026 drivers.

nbarsotti said:
Which source code are you referring to? i897 Eclair 2.1 source code or Nexus One Froyo 2.2 source code? I didn't think rogers or armani Froyo 2.2 source code had A1026 drivers.
Click to expand...
Click to collapse
Yeah, as far as anyone has been able to tell there isn't source code for the drivers, though there are references to the Audience chip in the Rogers 2.2 source.
Either way, I heard no discernible difference with it on or off with a Rogers phone, so I think it's either hardware-enabled or it does nothing.

Noise suppression with JJ4 modem
I just flashed Cognition 3.04 and flashed the JJ4 modem. (signal strength appears to be better, but data speeds crawled)
I made VM recordings with noise suppression option off and on, while playing music and TV sound on.
Off: Voice was clear, I could hear some noise from the music playing, but it was not a distraction to hearing my voice.
On: Voice was intelligible, but sounded muffled with some hiss/interference. The noise from the music and TV was close to being completely cancelled.
Sidenote: Here is the link to Audience's website that shows which devices have the processor:
http://www.audience.com/about/enabled-products.php

So I have to ask again. I jabr Cognition 3.04. Where do I find this Boise suppression option?
Sent from my SAMSUNG-SGH-I897 using XDA App

Captivate vs I9000 Based Roms

What's the difference between ROMs that are based on the Captivate such as Cognition vs ROMs that are based on i9000 such as Perception? They both function more or less the same according to my usage.

geokilla said:
What's the difference between ROMs that are based on the Captivate such as Cognition vs ROMs that are based on i9000 such as Perception? They both function more or less the same according to my usage.
Click to expand...
Click to collapse
One of the main diff is that Captivate based roms are 2.2 as where i9000 roms are based on 2.2.1. Some give you more options then others as I hear only certin things are available with 2.2.1.

Usually the i9000 roms are faster, and also allow do HSUPA.
Sent from my SAMSUNG-SGH-I897 using Tapatalk

zelendel said:
One of the main diff is that Captivate based roms are 2.2 as where i9000 roms are based on 2.2.1. Some give you more options then others as I hear only certin things are available with 2.2.1.
Click to expand...
Click to collapse
Like what? They both look the same to me, but I haven't gone in depth in terms of usage and stuff.
sixstringsg said:
Usually the i9000 roms are faster, and also allow do HSUPA.
Sent from my SAMSUNG-SGH-I897 using Tapatalk
Click to expand...
Click to collapse
I'm pretty sure HSUPA depends on the modem.

geokilla said:
Like what? They both look the same to me, but I haven't gone in depth in terms of usage and stuff.
Click to expand...
Click to collapse
have a look here for the updates. I think one of the main things in 2.2.1 were the exchange policies as Android is working its way to be more business friendly and Develoment minded.
http://en.wikipedia.org/wiki/Android_(operating_system)

zelendel said:
<snip> I think one of the main things in 2.2.1 were the exchange policies <snip>
Click to expand...
Click to collapse
Yeah, I can't connect to my work email using the 2.2 email, 2.2.1 email works fine however.

yes interesting i have cong 4 was wounding same thing still a bit fuzzy

Captivate better for me
I've found my phone works smoother with a captivate based rom.
Cognition is all captivate and things seem to work better
less force closes and unresponsive touch screen issues on my 1007 revision captivate, as well as dramatically less dropped calls
I lose HSUPA, but I'd rather have stability.
Cognition 3.04 with the stock rogers modem and with DA_G's gps fix also gives me pretty impressive gps performance on my captivate
I already paid for touchdown so exchange isn't an issue for me.

HSUPA comes with the modem, not the ROM. Just flash the correct HSUPA modem and you're good to go.
For a normal user perspective, so basically there's little to no change. What about bluetooth? I need that for driving and atm, Cognition + Firebird/Speedmod does not support bluetooth calling.

bump on the bluetooth question and of course on any other things you noticed

Ok, a couple points here:
1) I recently flashed a Captivate-based ROM for the first time in months, after flashing every i9000 reorient out there a dozen times. WOW. What the heck was I doing? At stock clock speeds (with a custom existz kb1 kernel and voodoo fs), the speed and smoothness and snappiness and sound quality and battery life of my device completely blows all i9000 ROMs I used out of the water. Maybe it's just my individual results, but it seems to me that there are still, despite all the much-appreciated hard work of kernel devs and ROM chefs, a ton of problems with how i9000 hardware works on the i897. It's great that I could get better dl/ul speedtest results on the HSUPA, or better Quad/Linpacks with OC, but in practicality, the process of downloading and installing an app on kb1 without OC is still WAY faster. The only ROM that compares is CM7. I'm not anyone's Director of Development, but I'd urge the devs here to focus on i897-based code and binaries whenever possible.
2) When I was using Cappy ROMs before, I know I had to use Bluetooth Launch and set it to the Voice Search VoiceRecognition Activity, thus enabling all Google Voice Actions including dialing over bluetooth. Today I'm going to play around and see if I can still get that working or perhaps tie it to the Voice Dialer app instead.

[Q] Increasing in call volume?

As the title says, how do I do this? (is it possible). I'm currently on serendipity 7 and I love the rom. Problem I have is the same prob I have with all GB roms, and most I9000 roms, (I'm an I897), call quality. Through trial and error I have found that jl2 and jl3 modems offer the best quality for myself and the people I am speaking with, however I would really like to increase the volume in my earpiece. It's ok, but it's a lot lower than any kb1 I've used. I have the volume all the way up, and sometimes it's a struggle to hear the person I am speaking with. I have sgs tools and I've investigated in the volume controls of the audio section. Problem is there are so many options for tweaking and I don't want to just go in and start increasing numbers that I don't know what they're for. Any guidance on which numbers I should increase to hopefully solve this issue? Also, galaxy tuner gives me issues, mostly just not working, so I don't think this is an option. Any advice would be greatly appreciated. And yes, I searched this before posting, and didn't find what I was looking for.

There's a Serendipity sticky in this forum for exactly these kinds of ROM-specific questions. Please use them. <---Smiley to avoid being characterized as a "****" again.

Not calling you a ****, but if you read my post, my question isn't rom specific. It's referring to all GB roms and I9000 roms in my experience. Can anyone else help?
Sent from my SGH-I897 using XDA App

Cdub3 said:
Not calling you a ****, but if you read my post, my question isn't rom specific. It's referring to all GB roms and I9000 roms in my experience. Can anyone else help?
Sent from my SGH-I897 using XDA App
Click to expand...
Click to collapse
In-call volume is a known Cappy problem that is fixed in many of the custom ROMs available here. Some do a better job than others, but it is a ROM-specific issue.

I say try a rom that is based on kb1 the official froyo build. The kb1 kernel had the proper drivers fire the audience chip used in the captivate. The I9000 uses a different chip so all I9000 roms will not have the use of the audience chip for noise cancellation.
Roms like cognition and fusion might be worth a shot.

Thanks studacris. I actually am running cog 4 on my other cappy, I just love using my gb cappy more. Just hoping there was a way to get same/similar call volume as my cog phone. So is tweaks with sgs tools useless with the gb/I9000 roms? Are you the captivate creator? You know everything bout this phone! Lol!
Sent from my SGH-I897 using XDA App

Lol. I have no idea about the sgs tools tweaks, I get about 1 call a week never really looked into it myself.
I don't blame you for wanting gb it's pretty sweet, I haven't gone to froyo since I made the jump. If you want audience chip support and gingerbread goodness keep an eye on this thread http://forum.xda-developers.com/showthread.php?t=1125596

This should be in the sticky, thread closed.

[Q] Modems how do they work?

so i have a captivate, i love it. however my carrier has limited service where i live. i have seen people say they get better download and upload speed with different modems and i myself have flashed different modems and used speedtest app to see these differences. my question(s) are really as follows
can a modem give you better reception?
is it possible to make your antenna in your phone work harder to pick up better signal strength?
in general is there a way i can learn how modems work?
thanks smart peeps!
Gorship

bump
bump for hope.

Gorship said:
so i have a captivate, i love it. however my carrier has limited service where i live. i have seen people say they get better download and upload speed with different modems and i myself have flashed different modems and used speedtest app to see these differences. my question(s) are really as follows
can a modem give you better reception?
is it possible to make your antenna in your phone work harder to pick up better signal strength?
in general is there a way i can learn how modems work?
thanks smart peeps!
Gorship
Click to expand...
Click to collapse
First, a modem us the binary file that runs the antenna. So if we were able to control and edit the binary (which we can't) you could potentially make the antenna "work harder".
so a modem works by controlling, software wise, the frequencies the antenna uses. For example, I9000 modems tell the antenna to also pick up hsupa, and that is why I9000 based roms have faster data. The modem needs to also be compatible with the kernel so it can run properly. This is why e can't use modems like JK4 on captivate based Roms.
flashing a modem can increase signal. It is all about where you are though. JK4, which is a great modem in Boston, might not be a great modem in San Francisco, or Detroit.
there is a sticky thread in the development section for this with a website that will help you pick out a new modem. Make sure it is compatible with your kernel first.
Sent from my GT-I9000 using XDA App

There is not an easy answer to this (I don't think) but here is an interesting read that may be of some help (or at least an interesting read )...
http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Linux.Wireless.modem.html

4-2ndtwin said:
There is not an easy answer to this (I don't think) but here is an interesting read that may be of some help (or at least an interesting read )...
http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Linux.Wireless.modem.html
Click to expand...
Click to collapse
as detailed as it can get..thanks for the read...

viny2cool said:
as detailed as it can get..thanks for the read...
Click to expand...
Click to collapse
True... Detailed.. However, mostly irrelevant..
When you flash a modem, you're flashing an operating system for the communications chip. It's an entire stand-alone operating system designed to minimalistically receive and transmit data. The communications chip is capable of running an entire device. This is evidant when you examine the binary. It contains keyboard, mouse and display drivers.
When the Captivate was released, it was released as a 3G device, not H, so its communications chip was configured to work as a 3G modem. This was likely a marketing decision as "3G" was all the rave at the time.
A modem won't improve your reception unless your old modem was configured incorrectly
As far as signal strength, it won't improve unless your old modem was configured incorrectly.
There are several tweaks which are applied in each version of modem firmware for different devices. Unfortunately, the communications chip is locked down/Closed-source Qualcrap.. So, we will never fully understand what configurations are available, nor can we do anything other than test and see which one works more effectively.

hey thank you so much guys, this is really interesting, sadly a little depressing but interesting. i have one last question then, since i am running my i897 captivate... with the ICS rom, does this mean i should use i9000 or i897 modems? i heard that i9000 modems were just better then i897 so i am using them... but if the above is true, i shoud be using i897 to get proper configuration of my device.
you guys are all awesome and ill be mashing the thanks button!
<3 Gorship

U have to use the specific modems for ICS... See here... http://forum.xda-developers.com/showpost.php?p=16843698&postcount=1
And more specifically...See this page... http://soggycashew.weebly.com/cm7miui--ics-modems.html

yea im flashing a few of the ics i897 vs the i9000 i was using... still though... i have full bars with my old blackberry bold 9000 compared to my cappy which has 1 or 2... i dont understand why.