Aldo wrote a great module Win32::Sound. I have been struggling with making an example using 16bit sound though and i would dig some help from any monk willing. Here's the example included with Win32::Sound distro. It generates a 8 bit sound in stereo. 
use Win32::Sound;
    # Create the object
    $WAV = new Win32::Sound::WaveOut(44100, 8, 2);
    $data = ""; 
    $counter = 0;
    $increment = 440/44100;
    # Generate 44100 samples ( = 1 second)
    for $i (1..44100) {
        # Calculate the pitch 
        # (range 0..255 for 8 bits)
        $v = sin($counter/2*3.14) * 128 + 128;
        # "pack" it twice for left and right
        $data .= pack("cc", $v, $v);
        $counter += $increment;
    }
    $WAV->Load($data);       # get it
    $WAV->Write();           # hear it
    1 until $WAV->Status();  # wait for completion
    $WAV->Save("sinus.wav"); # write to disk
    $WAV->Unload();          # drop it

[download]
Above example works great. My questoin is how to do this with 16bit sound. 16 bit sound has a range of 65335 values. It is stored different from 8bit as a signed integer value -32768 <-> 32767. Zero (no sound is 0). My best guess is to use pack i but i know it is not correct. The below example tries to make a 16 bit mono wav file the same way Aldo's 8bit example works. One 16bit sound is stored in 2 bytes while 8bit sound is stored in one. The pack i line is the line that needs correcting. WAV files are stored in little endian order. 
use Win32::Sound;
    # Create the object
    $WAV = new Win32::Sound::WaveOut(44100, 16, 1);
    $data = ""; 
    $counter = 0;
    $increment = 440/44100;
    # Generate 44100 samples ( = 1 second)
    for $i (1..44100) {
        # Calculate the pitch 
        # (range 0..65335 for 16 bits)
        $v = int(sin($counter/2*3.14) * (65335/2));
        #signed integer (v) range -32768 <-> 32767
        $data .= pack("i", $v);
        $counter += $increment;
    }
    $WAV->Load($data);       # get it
    $WAV->Write();           # hear it
    1 until $WAV->Status();  # wait for completion
    $WAV->Save("sinus.wav"); # write to disk
    $WAV->Unload();          # drop it

[download]
Thanks for reading.
jtrue

In reply to Win32::Sound 16 bit example by true

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