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How to lower the microphone gain?

I need to lower the microphone gain.
My audio codec is clipping becouse of incoming PCM samples saturated from
the mic. I don't need AGC becouse it doesn't work well with my app.
I just need to manipulate the mic gain via software.
Is there a way to do it? I'm using waveform audio api ti capture voice.
Actually the gain is too loud !!!
Thanks.

Anyone knows?

OK, I don't have the answer. But since no one is responding I'll try to give a few ideas that might help.
First, I have a hp6315 and an apache. Under settings, they both have a utility to enable/disable AGC. The ipaq's utility is labeled "ipaq audio" if you disable agc, you can then configure the microphone gain. This gain is stored in the registry. I think searching for gain or audio will find it. The apache doesn't have this. searching for audio, gain, wav, volume in the apache registry doesn't find anything that looks like microphone gain. I guess this is a "value added" thing from hp. But you could try searching anyway.
Then there's the mixer API. This is the way that user level apps are meant to control the audio. Works great on the desktop. Use mixerGetNumDevs() to find out how many devices you can control. On the h6315 mixerGetNumDevs returns 0. I haven't tried the apache, but I can remember a few years ago reading that many (most?) devices return 0. Oh well, hopefully you'll have better luck. However, there are two mixers that are implemented on the pocketPC the question is how to access them.
see this link for info on the mixers
http://blogs.msdn.com/medmedia/archive/2007/01/12/what-do-you-mean-by-mixer.aspx
Here's a link that shows the relationship between the mixer api and the other mixers, wavedev2 mixer, and software mixer.
http://msdn2.microsoft.com/en-us/library/ms923709.aspx
You'll notice that the the mixer api interacts with the mixer in the device driver not the software mixer in the WaveAPI.dll. You'll so notice that this section on audio drivers has pages for MDD/PDD drivers and Unified Audio Model (UAM) drivers. Platform Builder for WinCE 5.0 comes with a sample for each of these model drivers. Both models handle WAV_IOControl Messages. There are two types of messages, IOCTL_MIX_MESSAGE for the mixer, and IOCTL_WAV_MESSAGE for the rest of the driver. It looks like these IOCTL_MIX_MESSAGE are the way the mixer API controls the mixer. In the MDD/PPD sample they can be used to set WPDMX_MIC_VOL and WPDMX_LINEIN_VOL. In the UAM driver it's AC97_MIC_VOL and AC97_LINEIN_VOL. Perhaps sending the right IOCTL will solve the problem.
This blog entry
http://blogs.msdn.com/medmedia/archive/2007/01/03/windows-ce-audio-driver-samples.aspx
seems to say that a wavedev2 sample is available now. Also, while the WinCE 5.0 page above only metions two models the corresponding wince 6.0 also talks about wavedev2. I suspect if you got the current version of platform builder for WinCE 6.0 (trial version is free) you would have get the sample code for wavedev2, which is likely to be the best documentation of how this works. Amazingly, the drivers aren't that hard to read.
Both of the functions waveInMessage() and waveInSetProperty() are available to user apps. Hopefully both should be able to change the microphone gain if you can set the parameters properly. While most of these things are about windows CE, I think most (or all) apply to windows mobile 5.
Windows mobile 5, likely uses wavedev2 devices not MDD/PDD or UAM drivers.
Another interesting page about wavedev2 audio is here:
http://blogs.msdn.com/medmedia/archive/2007/01/04/the-wavedev2-gainclass-implementation.aspx
If your able to succeed or even learn more, be sure to post it back here.
I said a lot so I probably got something wrong. Anyone, please feel free to correct anything.

mixerGetNumDevs() returns 0 on my device
I can't find any registry entry which suggests microphone gain manipulation.
Perhaps i just need to send a waveInMessage properly.
I'm getting confused, should i implement a driver for this?
How do i know what kind of driver is running on my device and what messages
does it accept?
Thanks.

i think this may be what you need(?)
use a registry editor, (phm do a good free one)
hkey_local_machine/software/htc/audiogain (and audiogain 0 and 1 and 2)
try playing with the settings in there, soft reset to take effect

I don't have that keys on my HTC, should i create it?
Do you mean audiogain0 audiogain1 audiogain2?
Thanks.

see the attached screenshot, if you don't have those settings to adjust, a similar/same question was asked last night in a other thread, with different answers here
http://forum.xda-developers.com/showthread.php?t=306655

Looks like the cab file from the link provided by bbobeckyj just sets those audiogain registry settings. I don't have those settings on my apache. I don't think adding will help, but "you never know".
If you want to use waveInMessage() or waveInSetProperty() search for them at microsoft. You'll find there are a few parameters that you don't know. Read though the sample drivers that you can get with platform builder. See what values they expect, and which one cause them to change the microphone level. Try calling the function with values from the sample driver. While there is no guarantee that they use the same values, it's like that they do. I would start with the wavedev sample.
I don't know why microsoft doesn't seem to allow access to the source without agreeing to download all of platform builder, but it looks like that's the only way to get it. You can download the trial version for free. The source often helps if your trying to fingure out how something really works.

Uhmmm, i havn't found any download link about platform builder for windows CE 6.0. I've only found the 5.0.
Should't the trial be free?
Thanks.

I need to fix audio gain in my Itel Experience Phone (Windows Mobile 6.0 Pro)?
Please help.

I need to mute mic while on a call. Anyone has a idea of how may i do it?
Thanks

moved to the right forum, please post in the correct forums.

Hyperlink code to force ftp download

What is the proper format for html hyperlink code that will cause a file to download to the phone and not have the browser try to open it? I have files that are text, they are GPS files, but they don't have a TXT extension and IE keeps opening the files as text.
If it matters (but I don't think so) I'm running a reasonably stock HTC WM 6.0 ROM on a Hermes.
Regards,
GPSGary

You want to do this server-side? Or client-side?

FTP download code
I'm trying to write html code that will cause a file on my web site to download directly to the phone file directory without the browser trying to open it. It would be extra useful if I could make it download to a specific existing directory.
Regards,
GPSGary

Well, I hate to say this but you can't. That's the simple answer.
The complicated answer is that you need to set up some sort of server-side script to place the headers manually, or you need to modify some of the settings for your server's remote access handler. On Apache servers, this can be done via a file called .htaccess.
If you have a .htaccess file that you can modify, just enter this at the top of it:
Code:
RewriteEngine on
RewriteCond %{REQUEST_URI} \.(gps|cab)$
RewriteRule .* - [T=application/octet-stream,L]
Note that I didn't know the extension you're talking about so I put "gps" up there. I also added "cab" because many servers have a tendency to not send the proper headers for cab files. Feel free to add other extensions using this same method.
Again, this is assuming you have an Apache server, and you have the privileges to modify a .htaccess file.

Forcing ftp type download
No Apache server so isn't there some other way?
Anyone got a good Java script?
Regards,
GPSGary

Hi there,
as far as I know, you don't need java:
ftp-links are always proposed to "Save File", so your link should be ftp://www.domain.com/folder/filename.txt
This will cause any browser to download the file instead of opening it.
In that case, you definitely need an real ftp access to your file ... (ftp = FIleTransferProtocol).
Best regards,

I've encountered this before and resorted to zipping the file. You can also spoof the system by renaming the file to *.AAA The user, of course, will have to rename the file on their end. I have better luck with .zip unless it's for my own use. Any file which is recognized natively by the browser will open within the browser. This includes .txt, .htm, .html, and any other file associations you've successfully loaded.

gepp said:
No Apache server so isn't there some other way?
Anyone got a good Java script?
Regards,
GPSGary
Click to expand...
Click to collapse
That's what I'm tellin' ya. It's IMPOSSIBLE to do this with client-side scripting, i.e., Javascript.
I'd like to help you get this resolved. Can you clarify some things for me?
Are you using Geocities, Fortunecity, Google Pages, or one of the other free site services out there?
Do you understand the distinction I'm making between client-side and server-side scripting?
What server software are you using, if not Apache?
Are you able to utilize a PHP or Perl engine? (I can tell you how to send the file headers manually through either of those.)
I promise I'm not trying to be rude or anything. I just want to make sure we're both on the same page here. I can tell you the best way of getting this resolved, but I need to know where you stand, and I need to know the extent of your web development knowledge.

PHP or Perl will work
I'm on a Yahoo small business server. I've used PHP so that will work on my site and I know enough to fiddle with it if need be. Less proficient with Perl but have some exposure.
Regards,
GPSGary

Awesome. That works. Here is what you will basically be doing with PHP then.
PHP:
ob_start()
$GPSFile = '/path/to/file.gps'; //This is where the file is located on your Yahoo Business server
$DownloadName = "File.gps"; //This is the name that pops up when you're prompted to download the file (it can be different than the name above).
$TypeOfFile = 'text/plain'; //If you still have issues, change this to 'application/octet-stream'
header("Cache-Control: public, must-revalidate");
header("Pragma: hack");
header("Content-Type: " . $TypeOfFile);
header("Content-Length: " .(string)(filesize($GPSFile)) );
header('Content-Disposition: attachment; filename=' . $DownloadName);
header("Content-Transfer-Encoding: binary\n");
od_end_clean();
readfile($GPSFile);

DRMMiddleware & mHub available in cabs?

I'm looking for these versions:
"DRMMiddleware"="1_5_19122329_00"
mHub 6.57.090121.E1
Not sure if these can be installed in cab format or if they have to be cooked in.

It's usually a good idea to cook those in as there are usually other dependency packages required. AFAIK, it's also not advised to mix'n'match some packages because of the nature of their function.
That said, I have the "DRMMiddleware_1_5_19122329_00" package but mine is paired up with "mHubVO_1_75_090515_X0"; can you provide some specifics about the ROM(s) that might contain the package combination you are after?
Cheers,

whats the purpose of DRMMiddleware??
i always associated DRM = evil for music i rightfully purchased

Pretty much right on the money; problem is you need the middleware present as anything audio/video passes through those libraries.
Fun huh?

hilaireg said:
It's usually a good idea to cook those in as there are usually other dependency packages required. AFAIK, it's also not advised to mix'n'match some packages because of the nature of their function.
That said, I have the "DRMMiddleware_1_5_19122329_00" package but mine is paired up with "mHubVO_1_75_090515_X0"; can you provide some specifics about the ROM(s) that might contain the package combination you are after?
Cheers,
Click to expand...
Click to collapse
I have a question. mHubVO_1_75_090515_X0 contains voAMRNBDec.dll and voAMRNBEnc.dll so 2 files while mHubVO_1_73_090424_X0 contains 23 *.dll files. Why is that? I tend to use 1.73 and do I have to switch to 1.75 if I use DRMMiddleware_1_5_19122329_00?
BTW what is LockStreamDRM_1_2_081216_O9_02? Can I remove it? and the same question about DRM in SYS...

WINCE satnav ceFFM-0.3.5 got running

Really this should be on the developers forum, but I cannot post there.
New 7" Chinese satnav, WINCE6.0.
cdFFM-0.3.5 put on TF card and run.
Errors in lines 2251, 2277, 2264, 2270, 2258 for info seem to be links, probably already there - pointing elsewhere.
After reboot many menu items don't work, run MortScript.exe (in root directory of ceFFM), this will allow the scripts to work thereafter, and the menu items work (note some are dummies - useful for modding).
It doesn't boot unless you do the simple kludge below.
To boot into ceFFM use "Navi Path" button to point Navigation to CEMenu.exe (in root directory of ceFFM), then check button takes you to cdFFM, then you can use "Navi Path" button to "Auto run GPS when startup" and you are straight into ceFFM.
[My path was SDMMC\cdFFM-0.3.5\CEMenu.exe, for example].
You then need to edit the navigator link in the programs directory.
In my case it was iGO8 so I edited SDMMC\cdFFM-0.3.5\PROGRAMS\iGO8.lnk to point to my navigator program like this:
23#"\SDMMC\iGO8\iGO8.exe"
The 23# is the number of characters in "\SDMMC\iGO8\iGO8.exe" (+1 for some reason)
Please note that quite a lot of the menu items in ceFFM are capable of brikking your device.

Now a question
OK, I know its poor form to reply to your own post but...
Two things still not sorted for this satnav:
1) A 480x800 version of NaviPlayer. I don't know how to set the skins to work.
2) The satnav will not load .CAB files. Even if I put wceload.exe and run it pointing to the required file, it just claims the .CAB file is not valid. I've tried quite a few, and I think they are. I presume its a means to prevent people modifying the device. Stand alone .exe's work just fine. Anyone got a fix for this, its really irritating!

If wceload.exe fails, and then probably only signed .CAB-files are accepted. Workaround: Allow installing unsigned .CAB-files. You do this by editing device's registry as
following:
[HKEY_LOCAL_MACHINE\Security\Policies\Policies]
"00001001"=dword:00000001
"00001005"=dword:000000DE
"00001006"=dword:00000001
"00001017"=dword:00000010
"0000101a"=dword:00000001
"0000101b"=dword:00000001
HTH

jwoegerbauer said:
If wceload.exe fails, and then probably only signed .CAB-files are accepted. Workaround: Allow installing unsigned .CAB-files. You do this by editing device's registry as
following:
[HKEY_LOCAL_MACHINE\Security\Policies\Policies]
"00001001"=dword:00000001
"00001005"=dword:000000DE
"00001006"=dword:00000001
"00001017"=dword:00000010
"0000101a"=dword:00000001
"0000101b"=dword:00000001
HTH
Click to expand...
Click to collapse
That's neat...
OK, not that unexpectedly I find no entry \security\policies\polices .
"security" is found:
use\comm\security
machine\comm\security providers
machine\comm\security
machine\software\microsoft\Rpc\securityService
value: machine\software\Rpc ="DCOM Security"
machine\software\internet explorer\security
value: machine\software\internet explorer\security\basic = "security name"
machine\software\internet explorer\security\NTLM = "security name"
"policies" doesn't appear at all.
I found a reference to "username = guest", but neither appeared anywhere else.
I did spot in machine\OEM that value "app" is a path that points to the OEM menu system (main.exe).
May be possible to intercept here (if you wanted).
root\.cab is set to name "@"=64 value "cabfile"
hmmm... nothing that leaps out at you ...
bother!

farmeroz said:
That's neat...
OK, not that unexpectedly I find no entry \security\policies\polices .
Click to expand...
Click to collapse
Create it!

OK I did that, rebooted.
A bit scary as I haven't added such things before...
Still doesn't work.
Attempting to 'run' nitro.cab (nitrogen renamed) fails
However the OS claims that there is no application associated with 'nitro'.
However .CAB is a cabfile under \root\
and a cabfile default icon is \SDMMC\ceFFM-0.3.5\system\wceload.exe,-101
shell\open\command is \SDMMC\ceFFM-0.3.5\system\wceload.exe\"%1\"
So (whilst I haven't a clue) I would expect .cab files to be spotted.

farmeroz said:
OK I did that, rebooted.
A bit scary as I haven't added such things before...
Still doesn't work.
Attempting to 'run' nitro.cab (nitrogen renamed) fails
However the OS claims that there is no application associated with 'nitro'.
However .CAB is a cabfile under \root\
and a cabfile default icon is \SDMMC\ceFFM-0.3.5\system\wceload.exe,-101
shell\open\command is \SDMMC\ceFFM-0.3.5\system\wceload.exe\"%1\"
So (whilst I haven't a clue) I would expect .cab files to be spotted.
Click to expand...
Click to collapse
Use Win32 "MSCEInf" utility (it's freeware, google for it) to extract any .CAB file, if "wceload" doesn't work for you. After having extracted the .CAB, you are able to copy the application/data to any location of your choice at mobile device.

Oooh... That looks like a solution....
Didn't work. Can't see why though.
Hmmm. That editor shows (XML)
[Version]
Signature = "$Chicago$"
CESignature = "$Windows CE$"
Provider = "BenThon"
surely chicago is a win9x version?

I thought I had, but reading the long Nitrogen thread I don't think I did.
There doesn't seem to be a version for wince5/6, that's downloadable from anywhere, even though it exists somewhere because people have run on wince5 systems. Microfi is overworked...
I was somewhat under the impression that mobile was +- same as CE, but clearly not.
Signature="$Chicago$"
simply tells you the machine's OS the cab was built on[
I guessed that, sadly after I had posted.
Basically for my satnav I need a music player to play in the background, easily reachable from iGo8 (using megaduck99 skin, I have now got just how I want it!) nav screen and back. Really all I ever want to do is skip to the next track, as with 1000+ MP3's, sometimes you just aren't in the mood for some of them. Naviplayer (if it had an 800x480 skin) is finger usable for this whilst driving. Then (with bluetooth) I can just plug the satnav into my car radio (FM is rather poor quality) and utter perfection .... (who needs CD's these days?).
I'll have to have another stab at working out how to run the skins on naviplayer.
Your front end, particularly with the wealth of apps, is excellent. I have now put it on a no-name 7" netbook I use to backpack with, and now realise how slow it is compared to the more modern ones. Good enough for emails etc though.
NB I have been starting (manually) by running CEMenu.exe rather than ceFFM, is that what you intended?

To reskin NaviPlayer it merely suffices to have a folder named "mpskin" containing the files for the required skin copied from the examples given.
Its not immediately obvious because there is no default skin file provided (eg the small gold one it defaults to).
The fonts aren't quite right, either size or location
I have come across a bug in some of the apps. If I open notepad and the file-open, the entry box is not within the screen just far enough off that you can't grab it to pull it down. This is also the case in word. Doubtless somewhere there is a file that sets the position, any ideas? Annoying because I can't edit the mpskn.skn file....

Modified MP3P.SKN inside NAVIPLAYER\MPSKIN
This should work for all the 'Simple 3.1" skins.
If you want a button to appear when minimised you will have to adjust the button size/position/etc .
This is done in/with [MAIN_MIN_WINPOS]
If you have a larger button (as I do) then you will need to make a button of the appropriate size to replace the one in
BACK_MIN.BMP
I haven't done one yet, for iGO8 it will need to be under the bluetooth one, and similar size.
Hope this is useful.
NB I have no loader files for NaviPlayer (last good mod), I got it included in ceFFM.
;====Modified MP3P.SKN
[MP3 INFO]
MP3_Ver=1.0
[MAIN_WINPOS]
Width=800
Height=480
[MAIN_MIN_WINPOS]
Left=66
Top=0
Width=60
Height=24
WidthOne=1
[TRACK_POS]
Left=572
Top=129
Width=60
Height=14
SubValue=17
[TIME_POS]
Left=188
Top=129
Width=90
Height=14
SubValue=17
[SEEK_POS]
Left=212
Top=152
Width=373
Height=9
[INFO_POS]
Left=280
Top=189
Width=150
Height=9
;SubValue=0
[STATUS_POS]
Left=387
Top=375
Width=64
Height=38
[TITLE_POS]
Left=218
Top=65
Width=366
Height=20
[VOLBAR_POS]
Left=466
Top=272
Width=162
Height=6
[PEEK_POS]
Left=173
Top=250
Width=250
Height=28
SubValue=7
[VOLSLIDER_POS]
Left=466
Top=271
Width=162
Height=10
SubValue=3
;[TIMESLIDER_POS]
;Left=216
;Top=179
;Width=369
;Height=10
[PLAYOPT_POS]
Left=561
Top=184
Width=147
Height=12
SubValue=30
;====================
;Button Position
;====================
[BT_PLAY_POS]
Left=331
Top=330
Width=140
Height=150
[BT_STOP_POS]
Left=474
Top=285
Width=178
Height=49
[BT_PREV_POS]
Left=147
Top=396
Width=180
Height=84
[BT_NEXT_POS]
Left=474
Top=396
Width=178
Height=84
[BT_OPEN_POS]
Left=0
Top=102
Width=140
Height=73
[BT_MODE_POS]
Left=661
Top=342
Width=139
Height=138
[BT_ALBUM_POS]
Left=0
Top=182
Width=140
Height=73
[BT_EFFECT_POS]
Left=660
Top=485
Width=130
Height=70
[BT_EQ_POS]
Left=661
Top=182
Width=139
Height=73
[BT_PRESET_POS]
Left=661
Top=261
Width=139
Height=73
[BT_MULTI_POS]
Left=0
Top=23
Width=140
Height=73
[BT_VOLDN_POS]
Left=147
Top=342
Width=180
Height=50
[BT_VOLUP_POS]
Left=474
Top=342
Width=178
Height=50
[BT_MUTE_POS]
Left=0
Top=261
Width=140
Height=73
[BT_EXIT_POS]
Left=661
Top=23
Width=139
Height=73
[BT_MINIMIZE_POS]
Left=661
Top=102
Width=130
Height=73
[BT_SHUF_POS]
Left=0
Top=342
Width=140
Height=138
[BT_MIN_NORMAL_POS]
Left=0
Top=0
Width=60
Height=24
[BT_MIN_NEXT_POS]
Left=62
Top=0
Width=4
Height=24
[BT_MIN_MUTE_POS]
Left=68
Top=0
Width=4
Height=24
;==============================
; IMAGE LIST
;==============================
[IML_NUMBER]
Width=16
Height=12
[IML_STATUS]
Width=32
Height=38
[IML_PLAYOPT]
Width=49
Height=12
;==============================
; COLOR Type : BGR (0xffffff)
;==============================
[COLOR]
Info=0xffffff
Title=0xffffff
Seek=0xffffff
PeekLeft=0xffffff
PeekRight=0xffffff
VolumeBar=0xd14a00
;==============================

farmeroz said:
Please note that quite a lot of the menu items in ceFFM are capable of brikking your device.
Click to expand...
Click to collapse
You really experienced it? If so then you should specify them here to clarify things.
ceFFM's Original Thread

jwoegerbauer said:
You really experienced it? If so then you should specify them here to clarify things.
ceFFM's Original Thread
Click to expand...
Click to collapse
Sorry for the delay, HDD MBR problems....
No, I didn't brick my machine, I am very cautious. However being able to play with the registry, hexeditors etc, is potentially hazardous.
Hmm, on reflection its a combination of not knowing what they all do, and not knowing my way round winCE. Ie ignorance.

String not closed
China gps KENMOO 7', wince 6. Hello, excuse my English. Trying to install ceFFM, the installation begins, but then the message: String not closed (mising quote)
Line 3631 (\ SDMMC \ ceFFM.mscr)
If (key EQ "Startup), and it's over. I can modify anything? Installing on SDcard. Thank you.

mtce-utils configuration help (intents)

Hello,
I am wondering whether anybody can provide some clarifications regarding the mtce-utils configuration. More precisely, I would like to know if it is possible to assign intents to hardware (SWC of front panel) keys, and if so, how.
I have set most things up in mtce-utils/settings.ini according to the built-in documentation (comments in the configuration file), including app_xxx type of assignments (of apps to keys). In the old days of Xposed-mtc-keys one could also use intent_xxx assignments to associate intents instead of apps; however these do not appear to work in mtce-utils (this, or I am doing something wrong).
So, my main question is, can intents be assigned to buttons using mtce-utils, and if so how? As a more general question, is there any further documentation available for this module other than the comments in the configuration file? Advice is much appreciated.

sbruda said:
Hello,
I am wondering whether anybody can provide some clarifications regarding the mtce-utils configuration. More precisely, I would like to know if it is possible to assign intents to hardware (SWC of front panel) keys, and if so, how.
I have set most things up in mtce-utils/settings.ini according to the built-in documentation (comments in the configuration file), including app_xxx type of assignments (of apps to keys). In the old days of Xposed-mtc-keys one could also use intent_xxx assignments to associate intents instead of apps; however these do not appear to work in mtce-utils (this, or I am doing something wrong).
So, my main question is, can intents be assigned to buttons using mtce-utils, and if so how? As a more general question, is there any further documentation available for this module other than the comments in the configuration file? Advice is much appreciated.
Click to expand...
Click to collapse
Did you ever get an answer? I would like to know the same thing. If you found a way to do that please send me a message

panteryx_26 said:
Did you ever get an answer? I would like to know the same thing. If you found a way to do that please send me a message
Click to expand...
Click to collapse
As a matter of fact I found this resource (thanks @Xorit); I don't speak Russian but Google Translate produces a decent result. I have not had the time to test it, but in a nutshell the old "intent_xxx = string" setting should continue to work as it did in the previous (and now obsolete) mtc-keys module.

Could one of you post the mcte utils module? Can't find it to download anywhere...
Thank you!

Here is xposed-mtce-utils.apk v1.12:
xposed-mtce-utils v1.12

jtrosky said:
Here is xposed-mtce-utils.apk v1.12:
xposed-mtce-utils v1.12
Click to expand...
Click to collapse
could you load it up one more time?

Hey guys,
I can't find a working download respectively no download source for the latest mtce-utils. Can some1 give me a hint or upload the file, please?
Thanks in advance...