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Given the digital speech signal in the file guitatune.wav, Write a MATLAB program to a) Read the audio file and find sampling frequency. b) Quantize (using 4-bit quantizers to obtain the quantized signal ,assuming the signal range is from 1 TO −1 volts c) plot the original speech, quantized speech, and quantization error. d) Calculate the SQNR.

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    $\begingroup$ This is not a "do my homework site". To get an answer here you need to provide details on where you are confused exactly and show some effort. $\endgroup$ – Engineer Feb 23 at 11:59
  • $\begingroup$ And please don't use caps lock when typing in titles. Use title case. $\endgroup$ – TimWescott Feb 24 at 16:01

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