Audification Routines in MATLAB and IDL


The following IDL Code will write one-dimensional Input_Data to an audio file with the name Audified_Data.wav:


dataparam = Input_Data; Change to your vector name
ScaledData = -32768+65535.*(dataparam-min(dataparam))/max(dataparam-min(dataparam)); scales the data appropriately
write_wav,'Audified_Data.wav',ScaledData,44100; Writes Audio


Matlab 2013 and future releases: The following code will write one-dimensional Name_Of_Vector to an audio file with the name Audified_Data.wav:


Input_Data = Name_Of_Vector; %Change to vector name
minC = min(Input_Data(:,1)); %Finds min data value
maxC = max(Input_Data(:,1)); %Finds max data value
ScaledData = 2*(Input_Data(:,1) - minC)./(maxC-minC) - 1; %Scales data between -1 and 1
fs = 44100; %Sets sample frequency
bits = 16; %Sets bit depth
audiowrite(ScaledData(:,1),fs,bits,'Audified_Data.wav'); %Writes Audio


Matlab 2012 and earlier:
The wavwrite function should be used in place of audiowrite. 

Here is a page with helpful information on the WAVE file format:
https://ccrma.stanford.edu/courses/422/projects/WaveFormat/