c# - Midi-dot-net playing notes simultaneously and to high delay -

after resolving problem noteon key event (thank justin) noticed 2 problems: high delay , impossible playing simultaneously.

firstable use if statment:

if (nutka == "a0" && msg.velocity != 0) {     clock.schedule(new noteonmessage(outputdevice, channel.channel1, pitch.a0, 80, 2)); } 

and works excelent, no delay, allows me use midi pitch not .wav files.

when use other possibility play note (from files added resources):

soundplayer notea0 = new soundplayer(properties.resources.a0); notea0.play(); 

looks , works ok soundplayer don't allow me play notes simultaneously.

another way trying wmp library:

var notea0 = new wmplib.windowsmediaplayer(); notea0.url = @"c:\sounds\piano\a0.wav"; 

ok... plays simultaneous kind funny thing happens, more notes play bigger delay (delay between press key , hear sound) have , programm stuck on playing (still got noteon messages)...looks memory buffer gone or that?

the last thing trying check directx library:

audio notea1 = new audio(@"c:\sounds\piano\a1.wav"); notea1.play(); 

build , compile - no problems, without errors, when pressed key on midi device, application returns message:

an unhandled exception of type 'system.badimageformatexception' occurred in midi.dll additional information: not load file or assembly 'microsoft.directx.audiovideoplayback.dll' or 1 of dependencies.  not valid win32 application. (exception hresult: 0x800700c1) 

my question is - possible add files (.wav) solution resources , play them simultaneously delay allow me play normal piano? normal piano mean low delay, unnoticeable delay.