DZone Snippets: play code

Play audio with a Ruby shell script

jrobertson (James Robertson) — Wed, 09 Jul 2008 19:15:45 GMT

Play an ogg file from the command-line using the program ogg123 from the software package 'vorbis-tools'.



#!/usr/bin/ruby



#file: ogg-play.rb



`ogg123 #{ARGV[0]} > /dev/null 2>&1`

e.g.



wget http://upload.wikimedia.org/wikipedia/en/4/4d/Elo_blue_sky.ogg

./ogg-play.rb Elo_blue_sky.ogg

Play MP3 files

mstampar (Miroslav Stampar) — Tue, 24 Apr 2007 22:44:44 GMT



public class Player

{

  private string _command;

  private bool isOpen;

 [DllImport("winmm.dll")]

private static extern long mciSendString(string strCommand,StringBuilder strReturn,int iReturnLength, IntPtr hwndCallback);

  

public Player()

 {

   

 }

public void Close()

 {

  _command = "close MediaFile";

  mciSendString(_command, null, 0, IntPtr.Zero);

       isOpen=false;

 }



public void Open(string sFileName)

 {

  _command = "open \"" + sFileName + "\" type mpegvideo alias MediaFile";

  mciSendString(_command, null, 0, IntPtr.Zero);

  isOpen = true;

 }



public void Play(bool loop)

 {

  if(isOpen)

  {

   _command = "play MediaFile";

   if (loop)

    _command += " REPEAT";

    mciSendString(_command, null, 0, IntPtr.Zero);

   }

 }



}

Generate and play midi on mobile phone

korakot (Korakot Chaovavanich) — Wed, 10 Aug 2005 00:37:27 GMT

From a previous snippet, you can play any sound file
(including midi) with pys60.
http://bigbold.com/snippets/posts/show/400

Now, what if you can generate a midi file as well?
I found a pure python midi file library.
http://www.mxm.dk/products/public/pythonmidi

I modify it a bit, just to make a single file for easy download.
http://larndham.net/service/pys60/smidi.py
With it, you can play a single note with the following code.



>>> import smidi

>>> m = smidi.MidiOutFile('C:\\out.mid')

>>> m.header()

>>> m.start_of_track()

>>> m.update_time(0)

>>> m.note_on(note=0x40)  # single note

>>> m.update_time(192)

>>> m.note_off(note=0x40) # stop it after 192

>>> m.update_time(0)

>>> m.end_of_track()

>>> m.eof()



>>> from audio import Sound

>>> s = Sound.open('C:\\out.mid')

>>> s.play()

>>> s.close()

These 10 lines can be made into a simple function.
Then, you can just type a line and play any note you like
on you mobile phone.



>>> from smidi import play

>>> play([(64,192), (32, 192)])

Ah... so pythonic. ^_^