How To Disable the noise cancellation

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pmadej15

Member
May 26, 2009
9
1
It was recently posted in the general section that if you edit /system/build.prop from "media.a1026.enableA1026=1" to "media.a1026.enableA1026=0" it should disable the noice cancelling mic. I have not tried it myself yet but it should work. You need to re-edit the file if you want to re-enable the mic.
 
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FormelLMS

Retired Recognized Developer
Oct 28, 2009
2,647
376
Thank you very very much.
This works!!

Now I can place calls in my car, plugged in to the AUX Jack and others can hear what I say.

I haven't found it yet in the forum... :)
 

msn0005

Senior Member
Aug 24, 2008
75
1
Hong Kong
Samsung Galaxy Z Fold3
It was recently posted in the general section that if you edit /system/build.prop from "media.a1026.enableA1026=1" to "media.a1026.enableA1026=0" it should disable the noice cancelling mic. I have not tried it myself yet but it should work. You need to re-edit the file if you want to re-enable the mic.

Hi, How exactly do you do that? I am using a Samsung Galaxy S. Please help.
 

FormelLMS

Retired Recognized Developer
Oct 28, 2009
2,647
376
Your phone must be rooted.
Open root explorer, navigate to /system/

Mount your System r/w and open the build.prop with a long press and choose "open in text editor"

Then scroll to the correct line, delete the "1" and change it to an "0".
Then save and exit and don't forget to reboot your phone.
 

K2340

Member
Jun 9, 2008
15
0
I have an Android G1 devphone in my possession and the /system/build.prop doesn't contain that string.

Any ideas on turning off the noise canceling mic?

Thanks!

/system/build.prop
Code:
# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=CRC1
ro.build.display.id=dream_devphone-userdebug 1.5 CRC1 150275 test-keys
ro.build.version.incremental=150275
ro.build.version.sdk=3
ro.build.version.release=1.5
ro.build.date=Wed Jul  1 13:38:12 PDT 2009
ro.build.date.utc=1246480692
ro.build.type=userdebug
ro.build.user=android-build
ro.build.host=apa3.mtv.corp.google.com
ro.build.tags=test-keys
ro.product.model=Android Dev Phone 1
ro.product.brand=android-devphone1
ro.product.name=dream_devphone
ro.product.device=dream
ro.product.board=trout
ro.product.manufacturer=HTC
ro.product.locale.language=en
ro.product.locale.region=US
ro.board.platform=msm7k
# ro.build.product is obsolete; use ro.product.device
ro.build.product=dream
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=dream_devphone-userdebug 1.5 CRC1 150275 adp,test-keys
ro.build.fingerprint=android-devphone1/dream_devphone/dream/trout:1.5/CRC1/150275:userdebug/adp,test-keys
# end build properties
#
# system.prop for dream
#

rild.libpath=/system/lib/libhtc_ril.so
wifi.interface = tiwlan0
# Time between scans in seconds. Keep it high to minimize battery drain.
# This only affects the case in which there are remembered access points,
# but none are in range.
wifi.supplicant_scan_interval = 45

# density in DPI of the LCD of this board. This is used to scale the UI
# appropriately. If this property is not defined, the default value is 160 dpi.
ro.sf.lcd_density = 160

#
# ADDITIONAL_BUILD_PROPERTIES
#
ro.config.notification_sound=F1_New_SMS.ogg
ro.com.google.locationfeatures=1
ro.com.android.wifi-watchlist=GoogleGuest
ro.com.android.dateformat=MM-dd-yyyy
ro.com.android.dataroaming=true
ro.com.google.clientidbase=google
ro.ril.hsxpa=1
ro.ril.gprsclass=10
ro.setupwizard.mode=OPTIONAL
ro.url.legal=http://www.google.com/intl/%s/mobile/android/android-dev-phone-legal.html
ro.url.legal.android_privacy=http://www.google.com/intl/%s/mobile/android/android-dev-phone-privacy.html
keyguard.no_require_sim=true
ro.config.sync=yes
net.bt.name=Android
dalvik.vm.stack-trace-file=/data/anr/traces.txt
 

K2340

Member
Jun 9, 2008
15
0
G1 doesn't have such mic, I believe.

Oh really? It's the best hypothesis that I've got.

I'm trying to make an app that is a dumb microphone that records all background noise (to be processed later) and the phone seems to ignore anything that isn't my voice. Even when I blast music and stick the phone next to the speaker, the phone records the music in very very low volume. Same thing happens if I try the Voice Search app (can tell volume based on the amplitude graph shown) and if I record video. All audio but voice is either ignored or hush hush in videos.

I can only think that it is a noise canceling mic destroying the background noise.

Any ideas?
 

Jack_R1

Senior Member
Aug 9, 2009
4,362
964
HW "voice recognition" processing that doesn't use second mic, most probably.
I've checked the net, and saw no mention of G1 noise cancellation capabilities anywhere.
 

festethejeste

New member
Apr 10, 2009
3
0
Toronto
this works

this works. I have an n1 and did this quick mod and now I can talk and drive without any problems. I have my phone hooked up via headphone jack to the stereo and it sits about 2 feet away from me.

Thanks for help guys !
 

Aerohix

New member
Apr 2, 2011
3
0
Florianópolis, SC
It was recently posted in the general section that if you edit /system/build.prop from "media.a1026.enableA1026=1" to "media.a1026.enableA1026=0" it should disable the noice cancelling mic. I have not tried it myself yet but it should work. You need to re-edit the file if you want to re-enable the mic.
How do I get permission to edit the file? Please
 
Last edited:

holyguyz

Senior Member
Mar 23, 2010
155
9
Paradise
It was recently posted in the general section that if you edit /system/build.prop from "media.a1026.enableA1026=1" to "media.a1026.enableA1026=0" it should disable the noice cancelling mic. I have not tried it myself yet but it should work. You need to re-edit the file if you want to re-enable the mic.

Hi pmadej. I couldn't find it on my SGS2. And I even try to manually type in the line, but with no hope. Do you know how to disable it on SGS2? Thanks in advance.
 
Last edited:

neo24gr

Senior Member
Nov 20, 2013
61
3
hello.
can anyone help me how to do that on lenovo a706?
i have low level mic problem when calling..and i thing is noise cansellation.
please help me on this..
thank you
 

denis23ru

New member
Dec 20, 2013
4
0
People, and how do you not to disable noise cancelation, but fix it to do less noise canceling? Is there a mod for Nexus 5?
 

Ryan87B

Member
Jun 26, 2013
13
0
On my build.prop I can't find "media.a1026.enableA1026=1". If I add this line to my build,prop it will work?
 

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  • 1
    Yes, the title says it.
    Anybody an idea how to disable it?
    1
    Yes, easy to answering:
    http://xdaforums.com/showthread.php?t=700018

    It's a real annoying problem by making calls with plugged in car radio or headset.
    (Look at the Link) :)
    1
    It was recently posted in the general section that if you edit /system/build.prop from "media.a1026.enableA1026=1" to "media.a1026.enableA1026=0" it should disable the noice cancelling mic. I have not tried it myself yet but it should work. You need to re-edit the file if you want to re-enable the mic.