Hello,how can I separate the audible samples from unaudible or less audible samples in audio file. I want to hide my secret message in less audible samples on the basis of frequency. So basically how can I find the frequency of samples.

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I am doing thesis in Audio Steganography. How can i separate the audible portion of sample from inaudible or very less audible samples. The data has to hidden in inaudible samples so that there would be less distortion.

Answers (1)

Carlos on 3 Apr 2014
The human ear can hear signals within 20 Hz to 20 kHz range. So you can apply a bandpass filter in this frequency range. If you are only interested in human voice the range would be 300 Hz to 3400 Hz

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