Audio Programming in C++

Question

I wanna know how can I create sounds in LINUX with different frequencies using C++ libraries ? Is there any library for audio programming ( specially creating sounds with different freqs ) in C++ ?

How can I simulate piano and other musical instruments(MIDI) sounds using C++.

[EDIT] for example I want to create A Major with different sounds ( Violin, Piano, Guitar etc. )

I want to write something like this function:

void playNote( char type, double freq )

for example the A note below middle C is at 220 Hz. Middle C is at about 262 Hz (261.6).

so this should play Middle C for the Piano: ( 'P' means Piano for example )

playNote( 'P',  261.6 );

NOW , I want to know is there any library that could help me playing with notes and freqs ?

(I'm using G++ in Ubuntu 9.10 (Karmic Koala))

Answer 1

A quick googling gave following link where the same has been discussed. http://www.daniweb.com/forums/thread15252.html#

Hope it helps.

Answer 2

OpenAL and FMOD are two popular libraries which can simulate waveforms.

ALUT (part of OpenAL) has a function...

ALuint alutCreateBufferWaveform (ALenum waveshape,
                                 ALfloat frequency,
                                 ALfloat phase,
                                 ALfloat duration);

However, for simulating musical instruments you will need a library that can handle MIDI information. The MIDI format stores data as musical notes. There should be a number of good libraries that can handle MIDI which would make it easy to simulate instruments.

Answer 3

You could try using csound it's a little hard to understand but you can simulate any instrument you want and you can use csound API in C++.

Answer 4

I think C++ is not suitable language for your purpose, use Python instead. take a look at this link. Use csound API for Python.

Answer 5

For something very simple indeed (to start and stop a tone at a particular frequency), there's libbeep!

For a demo of this,

$ apt-get install beep

and try out the beep program.

Answer 6

The Synthesis ToolKit would be a good starting point:

https://ccrma.stanford.edu/software/stk/