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imx6q android mic record is silent

Question asked by Ashutosh Srivastava on Oct 6, 2015
Latest reply on Dec 20, 2016 by Rohit Patle

Hi,

 

I am stuck with audio recording through MIC_IN in sabreauto_6q with android 5.0.2

   we have tried to record through android sound Recorder app and tinycap.

1)  In SoundRecorder app the needle is not deflecting... but the recording continues and onplay it plays silence

   

   2)In Tinycap  it captures few frames but on playback its complete silence

                           #tinycap /data/test.wav -d 1 -c2                    

                              Capturing sample: 2 ch, 44100 hz, 16 bit

                              Captured 577536 frames

 

Please help us with fix or debussing on above issue.

 

Other observation is recording through LINE_IN is successful  and audio playback is also working.

 

Details on make  configuration:

PLATFORM_VERSION_CODENAME=REL

PLATFORM_VERSION=5.0.2

TARGET_PRODUCT=sabreauto_6q

TARGET_BUILD_VARIANT=eng

TARGET_BUILD_TYPE=release

TARGET_BUILD_APPS=

TARGET_ARCH=arm

TARGET_ARCH_VARIANT=armv7-a-neon

TARGET_CPU_VARIANT=cortex-a9

TARGET_2ND_ARCH=

TARGET_2ND_ARCH_VARIANT=

TARGET_2ND_CPU_VARIANT=

HOST_ARCH=x86_64

HOST_OS=linux

HOST_OS_EXTRA=Linux-3.13.0-32-generic-x86_64-with-Ubuntu-12.04-precise

HOST_BUILD_TYPE=release

BUILD_ID=1.0.0-ga-rc4

OUT_DIR=out

 

environment set :

# setenv bootargs 'console=ttymxc3,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off vmalloc=400M androidboot.console=ttymxc3 consoleblank=0 androidboot.hardware=freescale cma=384M androidboot.selinux=disabled'

 

#cat /proc/asound/cards                           

0 [cs42888audio   ]: cs42888-audio - cs42888-audio

                  cs42888-audio
1 [imxspdif   ]: imx-spdif - imx-spdif
                  imx-spdif

 

 

 

 

Thanks in advance ...

Outcomes