TO USE THIS MOD, I NEED ALL OF YOU TO USE FX FILE EXPLORER AND ITS FILE EDITOR TO EDIT THE MIXER_PATH FILE. MULTIPLE USERS HAVE REPORTED ERRORS WHEN THEY USE OTHER FILE MANAGERS. I HAVE TESTED THIS ON CM11, GUMMY, MOKEE, AND CR-DROID AND IT WORKS...BUT I DIDN'T HAVE ANY AUDIOMOD ENABLED LIKE VIPER4A. I DONT LIKE HAVING AUDIOMODS SO IF THEY KINDA HAVE CONFLICTS WITH AUDIOMODS I WILL NOT DO ANYTHING ABOUT IT.
I HAVE TESTED VALUES UP TO 30 AND!!!!! 20 IS THE MAXIMUM! GOING OVER 20 MAKES THE SOUND VOLUME LOWER FOR WHATEVER REASON SO SPARE THE EFFORT. FOR THE LATEST XPERIENCE KERNEL, DO NOT GO BEYOND 14 PLEASE, OR ELSE IT WONT WORK WITH FAUXSOUND. THANKS.
(OKY YOU MUST BE ROOTED BLA BLA BLA BLA HAVE A FILEXPLORER THAT CAN ROOT EXPLORE BLA BLA BLA)
now starting
1- open the explorer and got to /system/etc/
2- scroll down till u find this file mixer_paths.xml and open it as text (ES File)
3- now scroll down till u find this line <!-- These are actual sound device specific mixer settings -->
under it look for this
<path name="headphones">
<ctl name="SLIM RX1 MUX" value="AIF1_PB" />
<ctl name="SLIM RX2 MUX" value="AIF1_PB" />
<ctl name="SLIM_0_RX Channels" value="Two" />
<ctl name="RX1 MIX1 INP1" value="RX1" />
<ctl name="RX2 MIX1 INP1" value="RX2" />
<ctl name="CLASS_H_DSM MUX" value="DSM_HPHL_RX1" />
<ctl name="HPHL DAC Switch" value="1" />
<ctl name="RX1 Digital Volume" value="58" />
<ctl name="RX2 Digital Volume" value="58" />
<ctl name="HPHL Volume" value="11" />
<ctl name="HPHR Volume" value="11" />
CHANGE THE BOLDED VALUES TO ANYTHING THATS NOT OVER 20. YOU CAN PUT 20 FOR MAXIMUM GAIN. DONT CHANGE ANYTHING ELSE PLS. DONT CHANGE ANYTHING ELSE. AFTER CHANGING, REBOOT AND YOU WILL NOTICE THE DIFFERENCE WHEN YOU PLAY MUSIC VIA HEADPHONES. REMEMBER, AFTER MAKING THE CHANGES, SAVE.
SOURCE: http://forum.xda-developers.com/showthread.php?t=2583408
UPDATE!!!
EVERYONE! STOCK ROM and OMNI ROM CAN USE THIS CONFIG TOO, AND CAN GO UP TO 30! (BUT NOT CM AND ITS DERIVATIVES IE THE ROMS AT THE BEGINING OF THIS POST..STILL MAX 20) REMEMBER TO SAVE DEFAULT VALUES IN CASE YOU NEED TO CHANGE EM' BACK!
Do you save after u change and reboot or do you just change the vaules and reboot
Causes music player fc and no sound at all on my Gummy ROM with furnace 1.3.1 but I will keep trying Low headphone volume has been my only complaint about custom roms but I'm glad the issue is getting recognized and solutions start to come up. Thank you!
Update: Flashed a fresh new gummy, did this trick and now it works! There are a few very minor derps with V4A but it's totally bearable
Xavier, you should save when you make the change.
Xavier102296 said:
Do you save after u change and reboot or do you just change the vaules and reboot
Click to expand...
Click to collapse
Obviously you have to save.
If you don't save, then the values will be as same as they were before
Changed the values in cm11 didn't really notice to much of a difference
Xavier102296 said:
Changed the values in cm11 didn't really notice to much of a difference
Click to expand...
Click to collapse
try going to 20 which is the maximum
hottu_doggu said:
Causes music player fc and no sound at all on my Gummy ROM with furnace 1.3.1 but I will keep trying Low headphone volume has been my only complaint about custom roms but I'm glad the issue is getting recognized and solutions start to come up. Thank you!
Update: Flashed a fresh new gummy, did this trick and now it works! There are a few very minor derps with V4A but it's totally bearable
Xavier, you should save when you make the change.
Click to expand...
Click to collapse
I prefer sound to be stock EQ wise, but hey, to each and their own! well for me this solution beats having to fork out money to use that fauxsound app that in turn has to be used with kernels with that support that thing
OldYellowBricks said:
I prefer sound to be stock EQ wise, but hey, to each and their own! well for me this solution beats having to fork out money to use that fauxsound app that in turn has to be used with kernels with that support that thing
Click to expand...
Click to collapse
Editing mixer_paths.xml turned up the volume but the sound quality seemed worse. I read your post and just got FauxSound since it was really cheap and flashed xperience kernel. It does a great job at boosting the volume. What's interesting is that analog output gain defaults to -6. Setting it to 0 (tough you can set it to +6) makes it so much better and louder without affecting the quality. Why is it so that no custom rom's kernel have this feature or the analog output set to 0 or whatever the stock rom is using? I feel like we should be able to have MotoG's stock sound volume on custom roms without having to flash custom kernel and buying any apps. I'm not complaining, I have this issue solved for me, I'm just curious.
hottu_doggu said:
Editing mixer_paths.xml turned up the volume but the sound quality seemed worse. I read your post and just got FauxSound since it was really cheap and flashed xperience kernel. It does a great job at boosting the volume. What's interesting is that analog output gain defaults to -6. Setting it to 0 (tough you can set it to +6) makes it so much better and louder without affecting the quality. Why is it so that no custom rom's kernel have this feature or the analog output set to 0 or whatever the stock rom is using? I feel like we should be able to have MotoG's stock sound volume on custom roms without having to flash custom kernel and buying any apps. I'm not complaining, I have this issue solved for me, I'm just curious.
Click to expand...
Click to collapse
I Swear dog, i feel you, but on my side, there's no quality distortion of any sort. I changed to CM and then Gummy because there was this Moto G stock rom bug where speakers wouldn;t work after unplugging headphones (you'd have to reboot). Google that up. The problem I had wit the faux app was the settings wouldn;t stick after booting. That drove me crazy up until i found this solution, but hey, to each and their own. Thanks for sharing, man
hottu_doggu said:
Editing mixer_paths.xml turned up the volume but the sound quality seemed worse. I read your post and just got FauxSound since it was really cheap and flashed xperience kernel. It does a great job at boosting the volume. What's interesting is that analog output gain defaults to -6. Setting it to 0 (tough you can set it to +6) makes it so much better and louder without affecting the quality. Why is it so that no custom rom's kernel have this feature or the analog output set to 0 or whatever the stock rom is using? I feel like we should be able to have MotoG's stock sound volume on custom roms without having to flash custom kernel and buying any apps. I'm not complaining, I have this issue solved for me, I'm just curious.
Click to expand...
Click to collapse
and, by right, the faux settings should be able to be modded via init.d scripts but after googling, I found out that the fauxsound thing has been coded to not allow init.d. It needs the app. In other words, no app, no fauxsound settings.
hottu_doggu said:
Editing mixer_paths.xml turned up the volume but the sound quality seemed worse. I read your post and just got FauxSound since it was really cheap and flashed xperience kernel. It does a great job at boosting the volume. What's interesting is that analog output gain defaults to -6. Setting it to 0 (tough you can set it to +6) makes it so much better and louder without affecting the quality. Why is it so that no custom rom's kernel have this feature or the analog output set to 0 or whatever the stock rom is using? I feel like we should be able to have MotoG's stock sound volume on custom roms without having to flash custom kernel and buying any apps. I'm not complaining, I have this issue solved for me, I'm just curious.
Click to expand...
Click to collapse
and tbh, i do admit that the fauxsound tweaks (volume boost wise) do sound maybe 20% better compared to this thing over here
OldYellowBricks said:
and, by right, the faux settings should be able to be modded via init.d scripts but after googling, I found out that the fauxsound thing has been coded to not allow init.d. It needs the app. In other words, no app, no fauxsound settings.
Click to expand...
Click to collapse
Not true. I use init.d scripts to mod my faux sound settings. [emoji6] and they work flawlessly.
Moto.G_XT1031_CrDroid.B10_Furnace.1.3.1
justin1221 said:
Not true. I use init.d scripts to mod my faux sound settings. [emoji6] and they work flawlessly.
Moto.G_XT1031_CrDroid.B10_Furnace.1.3.1
Click to expand...
Click to collapse
if so please share it with me bcs Ive been having no avail with init.d :crying: here's a source. Can you share your init.d lines?
http://forum.xda-developers.com/goo...018-nexus-5-3-4-hybrid-uv-oc-t2509655/page440
Pm me if u need the scripts.
Moto.G_XT1031_CrDroid.B10_Furnace.1.3.1
on mixer_paths.xml i put the value 30 and its amazing sound, loud and clear...and the bass? wooow!!!! thanks man
woozie.2007 said:
on mixer_paths.xml i put the value 30 and its amazing sound, loud and clear...and the bass? wooow!!!! thanks man
Click to expand...
Click to collapse
WEIRD ive tried 30 or any value above 20 and it made sound become less loud than stock. What rom are you using? thank you
OP updated with better instructions
stock asia retail dual sim, i am very heppy with this sound, no distortion, very clear and low frecv bass
OldYellowBricks said:
WEIRD ive tried 30 or any value above 20 and it made sound become less loud than stock. What rom are you using? thank you
Click to expand...
Click to collapse
Yea same here, nothing about 20 worked. 20 us great though.
woozie.2007 said:
stock asia retail dual sim, i am very heppy with this sound, no distortion, very clear and low frecv bass
Click to expand...
Click to collapse
ok now i get it. This config is for CM dervivatives. there you go, EVERYONE! STOCK ROM CAN USE THIS CONFIG TOO, AND CAN GO UP TO 30! Will update OP. Thank you!
Related
Superb headphone volume boost for the Note 12.2 and it's dead easy to do.
Rooted of course, go to System> Etc and open default_gain.conf
Modify the following lines in the first "headphone" section to the below:
{ "HPOUT1L input 1 volume", 50},
{ "HPOUT1R input 1 volume", 50},
Reboot and it's loud as hell with no distortion. It's set really low because of the usual health and safety crap.
I use ES file explorer, open it with ES Note Editor and remember in ES root explorer settings to select Mount R/W
Hope this helps!
Keith
Sweet!! Does this improve the sound of the device internal speakers?
Sent from my SM-T900 using xda premium
Pretty sure the Headphone hack doesn't affect the speakers.
Sent from my SM-P900 using Tapatalk
No, this is for headphone output only.
You can amend other parts of the file for speakers, but be careful you don't blow them.
Also keep a backup of the original file in case you screw anything up!
kradcliffe said:
Superb headphone volume boost for the Note 12.2 and it's dead easy to do.
Rooted of course, go to System> Etc and open default_gain.conf
Modify the following lines in the first "headphone" section to the below:
{ "HPOUT1L input 1 volume", 50},
{ "HPOUT1R input 1 volume", 50},
Reboot and it's loud as hell with no distortion. It's set really low because of the usual health and safety crap.
I use ES file explorer, open it with ES Note Editor and remember in ES root explorer settings to select Mount R/W
Hope this helps!
Keith
Click to expand...
Click to collapse
I can't find that file...
I have P905, rooted
You need to have system root access and go back to device rather than the SD card
kradcliffe said:
You need to have system root access and go back to device rather than the SD card
Click to expand...
Click to collapse
I have root access and I've searched for that file in system/etc as you said, as far as I know system folder can be found only on device; anyway I want to try something, could you, please, send me that file? I'll try to copy it to that location and see. Thank you!
Here is the modified file. Just unzip
Keith
kradcliffe said:
Here is the molded file. Just unzip
Keith
Click to expand...
Click to collapse
Thank you Sir for providing the file. I have a P905 as well and could not find the file you described to modify.I will use attempt to use the file also depending on the results that gtm55 gets from that experiment. I did not find or identify the speaker file to hack either do you have that file as well.
Thanks again for sharing.
kradcliffe said:
Here is the molded file. Just unzip
Keith
Click to expand...
Click to collapse
Thank you!
Tried, but unfortunately "0" effect... We have to find another trick for the P905
Can't understand why the P905 would be any different. All Samsung devices I've had in a while have had a similar file.
Keith
My note 3 (SM-N9005) doesn't have it either, maybe lte devices have another configuration...
Sent from my SM-N9005 using XDA Premium 4 mobile app
I don't have it either on my SM-N9005 Note 3 or on my SM-P905 Note Pro.
Maby it's only on exynos based devices and not in SD.
Qualcomm based (mostly LTE) models have very different file structure - this is because Qualcomm provides System-on-a-chip solution including gpu/soundboard/radio devices, not only cpu, so every important component has to be configured in DIFFERENT way than elsewhere...
gtm55 said:
I have P905, rooted
Click to expand...
Click to collapse
Could you kindly provide me with the method you used to root the device? Tnx!
Sry for OT
cavkic said:
Could you kindly provide me with the method you used to root the device? Tnx!
Sry for OT
Click to expand...
Click to collapse
CF Autoroot
Sent from my SM-N9005
So has anyone figured out how to hack this yet???? ive been looking every where for a volume hack and this is the only thing ive found.
@esgie, you seem like the person who would know where this file would be for us to change, any solutions????
sonny24 said:
So has anyone figured out how to hack this yet???? ive been looking every where for a volume hack and this is the only thing ive found.
Click to expand...
Click to collapse
I haven't personally tested this, but what about opening /system/etc/mixer_paths.xml
Then finding this:
Code:
<!-- Play Scenario -->
<path name="speaker">
<path name="spk" />
<ctl name="RX4 Digital Volume" value="83" />
<ctl name="RX6 Digital Volume" value="83" />
<ctl name="LINEOUT3 Volume" value="19" />
<ctl name="LINEOUT4 Volume" value="19" />
</path>
<path name="headset">
<path name="ear" />
<ctl name="HPHL Volume" value="20" />
<ctl name="HPHR Volume" value="20" />
<ctl name="RX1 Digital Volume" value="77" />
<ctl name="RX2 Digital Volume" value="77" />
<ctl name="COMP1 Switch" value="1" />
</path>
If I'm right, for headset "HPHL Volume" stands for left side volume and HPHR for right, and increasing these (to 25 or so??) you can increase headphone playback volume
For speakers it might be RX* Digital Volumes.
But like I said, I have not tested this so I can't know exactly what this do
Yup, been using it for a moment, even 88 seems clear and significantly louder.
Also, in the nearest neighborhood of above lines of xml file there are adjustable values for different scenarios like dock or bluetooth speaker etc.
I still recommend ViPERs audio btw
esgie said:
Yup, been using it for a moment, even 88 seems clear and significantly louder.
Also, in the nearest neighborhood of above lines of xml file there are adjustable values for different scenarios like dock or bluetooth speaker etc.
I still recommend ViPERs audio btw
Click to expand...
Click to collapse
In fact I can't find any way to increase bluetooth volume (I got SM-P905). With V4A I can boost it up a little, but not enough.
More about it HERE
If you know how to increase volume max level for BT playback any help will be appreciated
anyone know?
jogson said:
anyone know?
Click to expand...
Click to collapse
Its impossible to change hardware of devices but there are many equalizer software (Like DSP manager)& many 3rd party Music player that helps to increase little bit volume.
in kitkat i was able to change by changing the permission in root file
jogson said:
anyone know?
Click to expand...
Click to collapse
The procedure is the same as it was for KITKAT.
go to system > etc > mixer_paths.xml.
grant permissions.
open using editor and change all values to 88.
Only for RX3 Digital Volume, chnage the value to 91.
Save and you are done.
Please note that you need to be rooted.
Hardware can't be tweaked simply. U can also increase the speaker volume by rooting there are many apps which do the same. But I think that u shouldn't do that since this may hamper the speaker and other hardware bcuse the low speaker is due to some reason. But tweaking it just a lil bit is an okay job
Regards
Hello,
Is there a way to reduce the sensitivity of the microphone when recording a video?
Every concert or Music is distorred.
Withe the Galaxy S3 it was possible by using the Boeffla Kernel. But it doesn't exists for the I9506.
Thanks
which rom are you using?
for CM-Roms i confirm that, its awful.
you have to modify mixer_paths.xml but I already tried this and still getting bad results. this is the reason i am thinking of returning to stock rom soon.
edit: maybe i give fauxsound a try..
In Dehaws kernel is a possibility to reduse sound levels. Inc.camera microphone, with faux sound or kernel audiitor. But then u need to be in DeHawk rom. Or compatible rom.
I'm on stock rom 5.01. Debloated and rooted with Xposed Framework!
The phone is also capable of AGC (auto gain control) but it probably must be supported by the app. RecForge-II (audiorecorder) does support it for example. Maybe try some other video recorders.
I adjusted the values in the mixer_paths.xml file.
Under the "Recording Scenario" I changed all the values from 84 to 65.
This did help.
Default values: https://www.youtube.com/watch?v=IpxeCCrD7eU
"Fixed" values: https://www.youtube.com/watch?v=n9QNj6ecpkU
http://i.imgur.com/IyOGFZF.png
Note that the second video is still slightly distorted soundwise, but it's exactly as I hear it in my car... VERY loud, to the point of uncomfortable
i can't take a look to the video because of the GEMA in GErmany.
So i have edited the xml file.
Will give it a try at the next rehearsal or concert
THX in advance
hehe i also wanted to look into the vids, but as located in germany, there are licensing troubles too.
Put an 'ss' in front of the url to 'ssyoutube'.
DualJoe said:
Put an 'ss' in front of the url to 'ssyoutube'.
Click to expand...
Click to collapse
??? Doesn't work!!!
There are a lot of users with uneven speakers, some have even exchanged their phones and still had the same problem with their second device. So I don't see the point in exchanging mine atm.
Using power amp I fixed my issue by panning my sound a little more to my bottom speaker, however this only works when listening to music.
Since the fix for music was so simple, is there anyone that can make a mod to change the phones speaker balance for the whole system?
I tried viper4android which has channel pan, but that setting is not available for phone speakers. Is there any other solution?
jamespat93 said:
There are a lot of users with uneven speakers, some have even exchanged their phones and still had the same problem with their second device. So I don't see the point in exchanging mine atm.
Using power amp I fixed my issue by panning my sound a little more to my bottom speaker, however this only works when listening to music.
Since the fix for music was so simple, is there anyone that can make a mod to change the phones speaker balance for the whole system?
I tried viper4android which has channel pan, but that setting is not available for phone speakers. Is there any other solution?
Click to expand...
Click to collapse
I do not have a 6P, but I still follow especially audio-related posts with interest.
One solution (root required!) would be to first play around with the audio mixer while playing music (or other audio material). First, go here and download the tinymix_lollipop.tar.gz file from the second post. This is the user-space mixer interface that at least on my Nexus 5 also works on Marshmallow. Copy the binary (tinymix) from that archive to, for instance, /system/bin and make executable (permission 755). Once installed, go to a root shell on your phone and execute
Code:
tinymix "Left Speaker Gain" X
and/or
Code:
tinymix "Right Speaker Gain" Y
where X and Y seem to be 20 by default. Carefully (!) change X and Y independently of each other until you find a satisfactory balance. I'd suggest you go one "tick" at a time and initially lower the gain instead of increasing it. Without having looked at the device-specific kernel, I don't know what the range of this mixer control is, but you can find out by issuing
Code:
tinymix "Left Speaker Gain"
Note X and Y that sound good to you and hard-code them, I believe, in the "speaker-gain-default" section of your /system/etc/mixer_paths.xml file and reboot.
chdloc said:
I do not have a 6P, but I still follow especially audio-related posts with interest.
One solution (root required!) would be to first play around with the audio mixer while playing music (or other audio material). First, go here and download the tinymix_lollipop.tar.gz file from the second post. This is the user-space mixer interface that at least on my Nexus 5 also works on Marshmallow. Copy the binary (tinymix) from that archive to, for instance, /system/bin and make executable (permission 755). Once installed, go to a root shell on your phone and execute
Code:
tinymix "Left Speaker Gain" X
and/or
Code:
tinymix "Right Speaker Gain" Y
where X and Y seem to be 20 by default. Carefully (!) change X and Y independently of each other until you find a satisfactory balance. I'd suggest you go one "tick" at a time and initially lower the gain instead of increasing it. Without having looked at the device-specific kernel, I don't know what the range of this mixer control is, but you can find out by issuing
Code:
tinymix "Left Speaker Gain"
Note X and Y that sound good to you and hard-code them, I believe, in the "speaker-gain-default" section of your /system/etc/mixer_paths.xml file and reboot.
Click to expand...
Click to collapse
Thank you so much! this is extremely helpful and seems like it will be a great solution. I'm trying to go through the steps now but just need a little help.
I download tinymix_lollipop.tar.gz, extracted the tinymix file and copied it to system/bin. Then I changed its permissions to 755 to make it executable like you said. Next I tried to use terminal emulator and typed 'tinymix "Left Speaker Gain" 1' just to test it. However it just gives me the error message 'failed to open mixer'. I'm rooted and made the file executable so I'm not sure why it didn't work?
jamespat93 said:
Thank you so much! this is extremely helpful and seems like it will be a great solution. I'm trying to go through the steps now but just need a little help.
I download tinymix_lollipop.tar.gz, extracted the tinymix file and copied it to system/bin. Then I changed its permissions to 755 to make it executable like you said. Next I tried to use terminal emulator and typed 'tinymix "Left Speaker Gain" 1' just to test it. However it just gives me the error message 'failed to open mixer'. I'm rooted and made the file executable so I'm not sure why it didn't work?
Click to expand...
Click to collapse
Before executing tinymix you need to make sure that this particular shell session has been granted root privileges. You need to type
Code:
su
in your terminal emulator to accomplish that. The prompt should switch to #
chdloc said:
Before executing tinymix you need to make sure that this particular shell session has been granted root privileges. You need to type
Code:
su
in your terminal emulator to accomplish that. The prompt should switch to #
Click to expand...
Click to collapse
Yeah its working perfectly now thanks! Just going to play with it a bit till I find settings I'm happy with but this is exactly what I was looking for!
The range is 0-31 so does that mean its safe to put the gain anywhere between those numbers?
jamespat93 said:
The range is 0-31 so does that mean its safe to put the gain anywhere between those numbers?
Click to expand...
Click to collapse
Who knows? I'm guessing things will start to audibly distort at gains higher than 20, maybe even to the point of physical damage at the top end.
Wow guess I'll be leaving it below 20 then, but seriously thanks again!
jamespat93 said:
Yeah its working perfectly now thanks! Just going to play with it a bit till I find settings I'm happy with but this is exactly what I was looking for!
The range is 0-31 so does that mean its safe to put the gain anywhere between those numbers?
Click to expand...
Click to collapse
What values did you end up using? And just to confirm....the top speaker is left?? because my top speaker is way louder than my bottom...so should I increase the bottom "1" or decrease the top speaker "-1". Also I'm assuming you can do a negative gain right?
bsg411 said:
What values did you end up using? And just to confirm....the top speaker is left?? because my top speaker is way louder than my bottom...so should I increase the bottom "1" or decrease the top speaker "-1". Also I'm assuming you can do a negative gain right?
Click to expand...
Click to collapse
Yeah top speaker gain is for the left speaker. The gain is '20' at default and it changes to whatever number you change it to. So to reduce it just change it to any number below 20. I changed my left speaker gain to 16.
Also elemental kernel now has left and right speaker gain controls too.
jamespat93 said:
There are a lot of users with uneven speakers, some have even exchanged their phones and still had the same problem with their second device. So I don't see the point in exchanging mine atm.
Using power amp I fixed my issue by panning my sound a little more to my bottom speaker, however this only works when listening to music.
Since the fix for music was so simple, is there anyone that can make a mod to change the phones speaker balance for the whole system?
I tried viper4android which has channel pan, but that setting is not available for phone speakers. Is there any other solution?
Click to expand...
Click to collapse
How did you install Viper4android and get channel pan? I installed using this http://forum.xda-developers.com/nex...er4android-t3250579/post65464645#post65464645
and the setting seems to be missing!
Hello, I've found a solution for the no sound on HBO MAX problem.
Root is needed OR to modify the system.img and upload it to the device.
You need to find this file /etc/media_codecs.xml and edit it.
Search for a line with this sentence OMX.google.eac3.decoder, my is <MediaCodec name="OMX.google.eac3.decoder" type="audio/eac3" />
You need to remove the whole line, or to change it to comment like this <!--<MediaCodec name="OMX.google.eac3.decoder" type="audio/eac3" />--> then save the file.
Reboot the device and sound should work in HBO MAX.
There is an option in droidlogic settings on some devices that limits audio that can have the same effect of forcing aac.
Yes there is, but it doesn't work on my device for some reason.