Improve Audio Recording quality in android?

Question

I am using the MediaRecorder for audio recording in android. I receive very poor audio quality when I record. I checked iPhone recording, and it is very good, but in android I receive horrible sound.

For sound recording I use:

 recorder = new MediaRecorder();
 recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
 recorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);
 recorder.setAudioEncoder(MediaRecorder.AudioSource.DEFAULT);
 recorder.setOutputFile(path);
 recorder.prepare();
 recorder.start();

How do I improve Audio Recording quality?

possible duplicate of [very poor quality of audio recorded on my droidx using MediaRecorder, why?](http://stackoverflow.com/questions/5010145/very-poor-quality-of-audio-recorded-on-my-droidx-using-mediarecorder-why) — Jacob, Feb 23 '12 at 03:19

Praveenkumar · Accepted Answer · 2012-02-22T09:29:59.690

7

Try this one -

recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setAudioEncoder(MediaRecorder.getAudioSourceMax());
recorder.setAudioEncodingBitRate(16);
recorder.setAudioSamplingRate(44100);
recorder.setOutputFile(path);
recorder.prepare();
recorder.start();

edited Feb 22 '12 at 09:29

answered Feb 22 '12 at 06:21

Praveenkumar

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i have tried it and now it raise another problem... it not record the voice – Nikunj Patel Feb 22 '12 at 09:05
Have you give the permission in `Manifest.xml` – Praveenkumar Feb 22 '12 at 09:06
ya ... record audio and writeexternal – Nikunj Patel Feb 22 '12 at 09:16
For, my code it's not working na? Just checkout my updated code. – Praveenkumar Feb 22 '12 at 11:38
hi ! now it s working now it play but not getting any difference. so how can i improve my sound quality? – Nikunj Patel Feb 22 '12 at 11:45
can you tell me what i do to remove background noice? – Nikunj Patel Feb 22 '12 at 13:00
Background noice? That means? – Praveenkumar Feb 23 '12 at 09:03
when you record sound, background noise also record .... so how to prevent from this> – Nikunj Patel Feb 24 '12 at 05:17
That how can we reduce that. Because, that's also a sound. If you want to reduce that. You must record the voice with alone or record with empty room. I think so. – Praveenkumar Feb 24 '12 at 05:48
I tried this recorder.setAudioEncoder(MediaRecorder.getAudioSourceMax()); but this gives me IllegalStateException(invalid audio encoder) can you tell me how to improve sound quality and its playback quality – Himanshu Agarwal Jul 03 '14 at 10:13
`recorder.setAudioEncodingBitRate(16);` That would set the bitrate to 16 bits per second, which is really bad.. – James Goodwin Jul 08 '15 at 11:23
It gives `java.lang.IllegalArgumentException: Invalid audio encoder` – Max Sep 03 '16 at 07:27
3

To clarify, you should probably do something like `recorder.setAudioEncodingBitRate(16 * 44100);` rather than using 16. 16 is probably the bit depth but far too low for the bit rate. – Grant Mar 22 '17 at 02:49

score 0 · Answer 2 · answered Feb 22 '12 at 06:07

0

Android has mainly supported 3 sound formats (i mean from creation point of view) : 3gp, mp4 and amr. Actually all there quality is very poor, so nothing to do about that.

Anyway you can use external mp3 codecs or save it as wave file. Sounds will be more clear but such codec(wav) will require large voice file in comporations of three formats mentioned above.

answered Feb 22 '12 at 06:07

Jviaches

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i am not agree with you because in coding world, this is possible – Nikunj Patel Feb 22 '12 at 06:32
I would like to know how then – Jviaches Feb 22 '12 at 18:12
as SpK told ... . . . and still not i am satisfied with his answer,i will try to more explorer... – Nikunj Patel Feb 23 '12 at 05:13

Improve Audio Recording quality in android?

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