Is It Possible to Record Audio Through Android Emulator?
10,493
Solution 1
YES, you can, just enable "Virtual microphone uses host audio input". Also, the app should ask for permission, you should allow it to use your audio.
Image of How to enable Android emulator audio
To make sure that the problem is not your app, you can go to google chrome in the emulator and use this web app -> https://online-voice-recorder.com/ just to make sure that the audio recording is working.
Solution 2
No. It is not possible to use the emulator for recording sound. You will have to code the logic of your program and then to deploy the actual apk to your phone, in order to test its functionality.
check this link as an official reference: http://developer.android.com/intl/es/guide/topics/media/audio-capture.html
Solution 3
Recording audio is possible at least in the standard 2.3.3 emulator on Windows 7; I have tried it and it works. However, the recorded audio did sound a bit weird (slow) in my case. I did not investigate the cause.
You need to add audio recording + playback support to the emulator (Android SDK and AVD manager -> Virtual devices -> Edit -> Hardware -> New). Then use the [MediaRecorder API][1] to record (MediaRecorder.AudioSource.MIC).
Code is:
fMediaRecorder= new MediaRecorder();
fMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
fMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_NB);
fMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
fMediaRecorder.setAudioChannels(1);
fMediaRecorder.setAudioSamplingRate(8000);
fMediaRecorder.setOutputFile(fTmpFile.getAbsolutePath());
fMediaRecorder.prepare();
fMediaRecorder.start();
You also need
< uses-permission android:name="android.permission.RECORD_AUDIO"/>
in your AndroidManifest.xml.
Works for me, but Audio IS distorted.
Author by
Sam
Updated on October 19, 2022Comments
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Sam over 1 year
I am Working On a Medical Project and the app can able to record the conversation between doctor and patient and send it for Transcription.
Assignment : Basically App is for Recording and Playing the recorded audio.
Problem : When ever recording starts, it records 10-20 seconds after that LogCat Shows:05-07 11:42:52.502: W/MediaProfiles(6321): could not find media config xml file 05-07 11:42:52.522: I/MPEG4Writer(6321): limits: 2147483647/0 bytes/us, bit rate: 12200 bps and the estimated moov size 3072 bytes 05-07 11:42:52.532: E/AudioFlinger(6321): Error reading audio input 05-07 11:42:58.432: W/AudioRecord(6321): obtainBuffer timed out (is the CPU pegged?) user=00000000, server=00000000 05-07 11:42:58.432: E/AudioFlinger(6321): Error reading audio input 05-07 11:43:03.403: W/AudioRecord(6321): obtainBuffer timed out (is the CPU pegged?) user=00000000, server=00000000 05-07 11:43:03.403: E/AudioFlinger(6321): Error reading audio input 05-07 11:43:03.403: A/AudioSource(6321): frameworks/base/media/libstagefright/AudioSource.cpp:327 timestampUs > mPrevSampleTimeUs 05-07 11:43:03.612: I/DEBUG(31): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 05-07 11:43:03.612: I/DEBUG(31): Build fingerprint: 'generic/sdk/generic:2.3.3/GRI34/101070:eng/test-keys' 05-07 11:43:03.612: I/DEBUG(31): pid: 6321, tid: 6442 >>> /system/bin/mediaserver <<< 05-07 11:43:03.612: I/DEBUG(31): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr deadbaad 05-07 11:43:03.622: I/DEBUG(31): r0 deadbaad r1 0000fef8 r2 00000027 r3 00000000 05-07 11:43:03.632: I/DEBUG(31): r4 00000080 r5 afd46668 r6 40806d78 r7 40806d7c 05-07 11:43:03.632: I/DEBUG(31): r8 a2f51fa1 r9 0000fd28 10 00100000 fp 00000001 05-07 11:43:03.632: I/DEBUG(31): ip ffffffff sp 408068e0 lr afd19d8f pc afd15ef0 cpsr 00000030 05-07 11:43:03.922: I/DEBUG(31): #00 pc 00015ef0 /system/lib/libc.so 05-07 11:43:03.922: I/DEBUG(31): #01 pc 00001440 /system/lib/liblog.so 05-07 11:43:03.922: I/DEBUG(31): code around pc: 05-07 11:43:03.932: I/DEBUG(31): afd15ed0 68241c23 d1fb2c00 68dae027 d0042a00 05-07 11:43:03.932: I/DEBUG(31): afd15ee0 20014d18 6028447d 48174790 24802227 05-07 11:43:03.932: I/DEBUG(31): afd15ef0 f7f57002 2106eb56 ec92f7f6 0563aa01 05-07 11:43:03.932: I/DEBUG(31): afd15f00 60932100 91016051 1c112006 e818f7f6 05-07 11:43:03.932: I/DEBUG(31): afd15f10 2200a905 f7f62002 f7f5e824 2106eb42 05-07 11:43:03.942: I/DEBUG(31): code around lr: 05-07 11:43:03.942: I/DEBUG(31): afd19d6c 230ed505 21005ec0 f7f12202 89a2ebec 05-07 11:43:03.942: I/DEBUG(31): afd19d7c 1c294804 81a04010 5ea0220e f7f11c32 05-07 11:43:03.942: I/DEBUG(31): afd19d8c bd70eb72 ffffefff 1c04b510 5ec0230e 05-07 11:43:03.942: I/DEBUG(31): afd19d9c eb58f7f1 db032800 180b6d21 e0036523 05-07 11:43:03.952: I/DEBUG(31): afd19dac 4b0289a2 81a34013 46c0bd10 ffffefff 05-07 11:43:03.952: I/DEBUG(31): stack: 05-07 11:43:03.952: I/DEBUG(31): 408068a0 00000008 05-07 11:43:03.952: I/DEBUG(31): 408068a4 afd18407 /system/lib/libc.so 05-07 11:43:03.952: I/DEBUG(31): 408068a8 afd42604 /system/lib/libc.so 05-07 11:43:03.952: I/DEBUG(31): 408068ac afd46784 05-07 11:43:03.952: I/DEBUG(31): 408068b0 00000000 05-07 11:43:03.952: I/DEBUG(31): 408068b4 afd19375 /system/lib/libc.so 05-07 11:43:03.952: I/DEBUG(31): 408068b8 00000009 05-07 11:43:03.963: I/DEBUG(31): 408068bc afd183d9 /system/lib/libc.so 05-07 11:43:03.963: I/DEBUG(31): 408068c0 afa01199 /system/lib/liblog.so 05-07 11:43:03.963: I/DEBUG(31): 408068c4 00000000 05-07 11:43:03.963: I/DEBUG(31): 408068c8 afd46668 05-07 11:43:03.963: I/DEBUG(31): 408068cc 40806d78 05-07 11:43:03.963: I/DEBUG(31): 408068d0 40806d7c 05-07 11:43:03.963: I/DEBUG(31): 408068d4 afd18677 /system/lib/libc.so 05-07 11:43:03.963: I/DEBUG(31): 408068d8 df002777 05-07 11:43:03.963: I/DEBUG(31): 408068dc e3a070ad 05-07 11:43:03.963: I/DEBUG(31): #00 408068e0 408068dc 05-07 11:43:03.963: I/DEBUG(31): 408068e4 00000001 05-07 11:43:03.972: I/DEBUG(31): 408068e8 a303abbe /system/lib/libstagefright.so 05-07 11:43:03.972: I/DEBUG(31): 408068ec 0000000c 05-07 11:43:03.972: I/DEBUG(31): 408068f0 40806914 05-07 11:43:03.972: I/DEBUG(31): 408068f4 fffffbdf 05-07 11:43:03.972: I/DEBUG(31): 408068f8 00000001 05-07 11:43:03.972: I/DEBUG(31): 408068fc 40806914 05-07 11:43:03.972: I/DEBUG(31): 40806900 a303abbe /system/lib/libstagefright.so 05-07 11:43:03.972: I/DEBUG(31): 40806904 afa01443 /system/lib/liblog.so 05-07 11:43:03.983: I/DEBUG(31): #01 40806908 40806914 05-07 11:43:03.983: I/DEBUG(31): 4080690c afa01443 /system/lib/liblog.so 05-07 11:43:03.983: I/DEBUG(31): 40806910 40806d2c 05-07 11:43:03.983: I/DEBUG(31): 40806914 6d617266 05-07 11:43:03.983: I/DEBUG(31): 40806918 726f7765 05-07 11:43:03.983: I/DEBUG(31): 4080691c 622f736b 05-07 11:43:03.983: I/DEBUG(31): 40806920 2f657361 05-07 11:43:03.983: I/DEBUG(31): 40806924 6964656d 05-07 11:43:03.983: I/DEBUG(31): 40806928 696c2f61 05-07 11:43:03.983: I/DEBUG(31): 4080692c 61747362 05-07 11:43:03.983: I/DEBUG(31): 40806930 72666567 05-07 11:43:03.983: I/DEBUG(31): 40806934 74686769 05-07 11:43:03.992: I/DEBUG(31): 40806938 6475412f 05-07 11:43:03.992: I/DEBUG(31): 4080693c 6f536f69 05-07 11:43:03.992: I/DEBUG(31): 40806940 65637275 05-07 11:43:03.992: I/DEBUG(31): 40806944 7070632e 05-07 11:43:03.992: I/DEBUG(31): 40806948 3732333a 05-07 11:43:03.992: I/DEBUG(31): 4080694c 6d697420 05-07 11:43:05.342: I/BootReceiver(61): Copying /data/tombstones/tombstone_03 to DropBox (SYSTEM_TOMBSTONE) 05-07 11:43:05.372: W/IMediaDeathNotifier(386): media server died 05-07 11:43:05.372: I/ServiceManager(28): service 'media.audio_flinger' died 05-07 11:43:05.372: I/ServiceManager(28): service 'media.audio_policy' died 05-07 11:43:05.372: I/ServiceManager(28): service 'media.player' died 05-07 11:43:05.372: I/ServiceManager(28): service 'media.camera' died 05-07 11:43:05.382: W/AudioSystem(61): AudioFlinger server died! 05-07 11:43:05.382: W/AudioSystem(61): AudioPolicyService server died! 05-07 11:43:05.632: D/dalvikvm(61): GC_CONCURRENT freed 1046K, 47% free 4504K/8391K, external 3520K/3903K, paused 8ms+19ms 05-07 11:43:06.072: I/(6479): ServiceManager: 0xad50 05-07 11:43:06.072: D/AudioHardwareInterface(6479): setMode(NORMAL) 05-07 11:43:06.072: I/CameraService(6479): CameraService started (pid=6479) 05-07 11:43:06.082: I/AudioFlinger(6479): AudioFlinger's thread 0xc658 ready to run 05-07 11:43:06.908: E/AudioService(61): Media server died. 05-07 11:43:06.912: E/AudioService(61): Media server started. 05-07 11:43:06.922: D/AudioHardwareInterface(6479): setMode(NORMAL) 05-07 11:43:06.922: W/AudioPolicyManagerBase(6479): setPhoneState() setting same state 0Code:
protected String doInBackground(MediaRecorder... params) { mFileName = Environment.getExternalStorageDirectory().getAbsolutePath(); mFileName += "/_audioDirectory/" time +"/"+f_Name+ ".mp3"; mRecorder = new MediaRecorder(); mRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT); mRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT); mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT); mRecorder.setOutputFile(mFileName); try { mRecorder.prepare(); } catch (Exception e) { Log.e(LOG_TAG, e.toString()); } mRecorder.start(); Log.i("recording starts", "now"); return "success"; }I gone through Android Documentation and its clearly mention MediaRecorder does not work on the emulator.Right Now i dont have android phone to test.
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Sam about 11 yearsyeah i'm using android-2.3.3.also same problem dear
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secr almost 4 years@Nirav That sounds promising. However, I am on windows 7 64bit thinkpad, have tried following your instructions but in tools, AVD manager, virtual device -there is nothing that like "New" you mention. There is "verify configuration" where you can change the system, gfx, ram, and other specs, but not audio settings. Uses permission in manifest file - this is clear, and so is the code, going to dart file, I believe. Can you clarify the missing part please? thanks
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Cleaton Pais over 2 yearsI attempted this but it does not seem to work
