Handy audio Processing scripts for Matlab and C usage

Matlab scripts to convert an amount of samples from a .wav file to raw data file (e.g ,.txt,.dat), then create C file and format the txt data into a double array.

Samples_to_raw

• Extracting sample values from wav file to raw data file:
• Input arguments: samples_to_raw(input_file_name, num_samples_to_extract, output_file_name)
• The output file is automatically created, and saved in current folder.
• Example input: samples_to_txt("test.wav", 500, "test.txt")
• The wav file should be located in the same folder as the script.

  --- NOTE ---

  Only even values are valid to be written in the output file, if a odd number is passed as argument the output array will contain the number-1.

Raw_to_C

• Extracting the raw values and format them into double array variable in C syntax, creating a new output file ready to be used as an extern variable for audio analysis and experiments.
• Input arguments: raw_to_c(input_file_name, output_file_name)
• The output file is automatically created,
• Example input: raw_to_c("test.txt","test.c")
• Example structure of the output file: double test[500] = { //values };