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Editorial Team
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Asked: 2026-06-03T08:08:10+00:00

I successfully record sound on an Android 2.3.4 device (full settings are: AudioSource.MIC +

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I successfully record sound on an Android 2.3.4 device (full settings are: AudioSource.MIC + 44100Hz + AudioFormat.CHANNEL_IN_MONO + AudioFormat.ENCODING_PCM_16BIT).

I also properly write the PCM data to a WAV file.

The problem is that there are those noises which makes the recording terrible.

The attached file shows exactly what I mean. Notice the obvious spikes.

I have tested the same recording (the music in the attached file) with some sound recording apps on the market, and they record in a perfect way, without noises at all – how is it done? Is it a setting I should set (I use AudioRecord)? Should I manually filter those noises with some algorithm? What should I be looking for?

If the attached file is not downloading for some reason or link is simply broken just let me know with a comment.

Thanks!

Edit #1:
I’m with Galaxy S2.

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1 Answer

  1. Editorial Team

    I think 44100Hz is too much for your phone capability, and in general, for all phones capabilities: mobile phones are not HI-FI.

    Try with 8000Hz.

    Then you can change this value until you find an acceptable recording quality.

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