How to play a changing sound based on input value.

Please re-explain what you are trying to do with input/output for sound.

I think they need some sort of method like this:

Sub PlaySound(ByVal Frequency As Integer, ByVal Duration As Single)
    PlayPitchedSound(Frequency, Duration)
End Sub

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I've no idea how to implement playing a specific sound at a set frequency/pitch in VB.NET... used to know it in QBasic though :P

... so im interested in knowing the answer to this too

I should say that the PlayPitchedSound should be replace with some API call im guessing... im just writing out some naff pseudo code to maybe give you some idea of what I think they're after (if that makes sense)

 Below is my code to play the sounds. I split a 4 seconds wav file (which has different pitches from low to high) to 200 wav files. I play each wav file according to the num. But it sounds awful. It is not very smooth. I want to make it sound like the 4 second wav file.

    Public Const SND_ASYNC = &H1 ' play asynchronously
    Public Const SND_LOOP = &H8 ' loop the sound until next sndPlaySound
    Public Const SND_NOSTOP = &H10 ' don't stop any currently playing sound
    Public Const SND_NOWAIT = &H2000 ' don't wait if the driver is busy


    Private Declare Function PlaySound Lib "winmm.dll" Alias "PlaySoundA" (ByVal lpszName As String, ByVal hModule As Integer, ByVal dwFlags As Integer) As Integer


 PlaySound(Path & "Meter Wave" & CType(num, String) & ".wav", 0, SND_ASYNC Or SND_LOOP)

I would have thought there would be some API somewhere which works like the sound command (i forget the actual name) that was in QBasic... you could give a frequency in Hz... and the duration, and it would play that "note" for that set duration.

In QBasic, that gave you a continuous fluid note rather than a "joint" note... and obviously gave you more choice over the notes.

Hopefully someone knows of a similar API or command that can be brought into VB.NET

I think you will have to make(record) a wave that will have the sounds that you need. then call playsound to read only that small part of the wave file. I do that with a number grid program to read numbers.

Planocz,

Can you tell me how to read only small part of a wave file in VB .NET? Thanks