Android application has the option of changing the following frequencies: 11025, 16000, 22050, 44100. With the 3 buttons, you can start, stop and play your sound recording. Application (app) for mobile phone can be downloaded from HERE. After downloading, it copies itself to the mobile phone and install. Project with all files (source code) can be given on request. For further questions leave a message.
Sound recording with different frequencies
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