Play Two Sounds Simultaneusly

Play two sounds simultaneusly

Reference PresentationCore and WindowsBase and try this...

var p1 = new System.Windows.Media.MediaPlayer();
p1.Open(new System.Uri(@"C:\windows\media\tada.wav"));
p1.Play();

// this sleep is here just so you can distinguish the two sounds playing simultaneously
System.Threading.Thread.Sleep(500);

var p2 = new System.Windows.Media.MediaPlayer();
p2.Open(new System.Uri(@"C:\windows\media\tada.wav"));
p2.Play();

EDIT
I received a downvote probably because at first glance this looks like it will play the second sound after the first is finished. It doesn't, they are played by windows asynchronously. The sleep is there so if you test this code verbatim you can hear the sounds play together, it wouldn't be noticeable without the delay since they are the same sound.

This code demonstrates the two sounds playing on separate threads on top of each other, which is sort of pointless since the playback doesn't block anyway

new System.Threading.Thread(() => {
        var c = new System.Windows.Media.MediaPlayer();
        c.Open(new System.Uri(@"C:\windows\media\tada.wav"));
        c.Play();
    }).Start();

System.Threading.Thread.Sleep(500);

new System.Threading.Thread(() => {
        var c = new System.Windows.Media.MediaPlayer();
        c.Open(new System.Uri(@"C:\windows\media\tada.wav"));
        c.Play();
    }).Start();

http://msdn.microsoft.com/en-us/library/system.windows.media.mediaplayer.stop.aspx
The class also has the control you need to stop playback

play multiple sounds simultaneously in javascript

You can use the Audio constructor

const music = new Audio('myPathTo/music.mp3')
const soundEffects = new Audio('myPathTo/effects.mp3')

and then

music.play()
soundEffects.play()

Play 2 sounds simultaneously with multiprocessing in python

If you want to have any control over the relative timing of the two sounds (for example, they should start simultaneously), using multiple processes is probably not a good solution. You should be mixing the signals within your application and writing out a single audio stream.

Since you are using audiolab, you already have the data in numpy arrays. This gives you all the flexibility you need to mix audio:

frames1, fs1, encoder1 = audiolab.wavread('audio1.wav')
frames2, fs2, encoder2 = audiolab.wavread('audio2.wav')
mixed = frames1 + frames2

audiolab.play(mixed, fs=44100)

If this causes the audio signal to clip (you hear clicks / pops), you may need to pre-scale the data before mixing:

mixed = frames1 / 2 + frames2 / 2

.. and if the sounds do not have equal length, it may take a little more work:

mixed = np.zeros(max(len(frames1), len(frames2)), dtype=frames1.dtype)
mixed[:len(frames1)] += frames1 / 2
mixed[:len(frames2)] += frames2 / 2

How to play two sounds simultaneously using Media Foundation

Could you elaborate a bit more ?

For example, you can restart a IMFMediaSource to reapeat it :

IMFMediaSource::Start :

Starts, seeks, or restarts the media source by specifying where to start playback.

Or you can simply stop the source and then start again :

IMFMediaSource::Stop

When a media source is stopped, its current position reverts to zero. After that, if the Start method is called with VT_EMPTY for the starting position, playback starts from the beginning of the presentation.

PS : I agree with Mgetz, if you only play simple wav files, XAudio2 is an option. Tell us your audio file format.

Play multiple sound at the same time

With JavaScript and the HTML5 Audio API you could do something like this:

var snd1  = new Audio();
var src1  = document.createElement("source");
src1.type = "audio/mpeg";
src1.src  = "audio/Dombra.mp3";
snd1.appendChild(src1);

var snd2  = new Audio();
var src2  = document.createElement("source");
src2.type = "audio/mpeg";
src2.src  = "audio/(TESBIHAT).mp3";
snd2.appendChild(src2);

snd1.play(); snd2.play(); // Now both will play at the same time

I have tested this in Chrome v. 20, and it seems to work :)

The <source> tag is used to specify different formats of the same file - such that the browser can choose another format as fallback in case the first one is not supported. That is why your own suggested solution does not work.

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