Sound

DirectMusic & DirectSound

Sound Formats

Wav Midi (Musical Instrument Digital

Interface) DLS (Downloadable Sounds) DirectMusic Producer Segments Loader for new formats

DirectMusic vs DirectSound

DirectMusic more oriented to high level playing of arrangements and compositional effects (MIDI, DLS)

DirectSound has sound recording and low level buffer operations (full duplex capabilities)

Playing Audio Files Initialize: create instances of the loader,

the performance, and initialize the performance

Load a File: load the file and get an interface to that interface (segment)

Play the File: download all kind of settings from the segment to the performance, and play the segment

Close Down: close all the stuf

SoundData Flow

SoundInput

SoundInternal

SoundOutput

Elements of a DirectMusic ApplicationKey concepts and code objects of DirectMusic: Loader Segments and Segment States Performance Messages Performance Channels Downloadable Sounds Instruments and Downloading Audio paths and Buffers Audio Scripts

SoundData Flow

Key concepts and code objects• Loader • Segments and Segment States • Performance • Messages • Performance Channels • Downloadable Sounds • Instruments and Downloading • Audio paths and Buffers • Audio Scripts

Assignments (Problems) 1,3, and 5: add before the includes of

dmusici.h and dmusicc.h: typedef unsigned long DWORD; typedef DWORD * DWORD_PTR

Assignment 2 has compilation errors that we have to solve, so do not compile yet, but browse through the code only. Look at the MMP2003 web-page tomorrow for an update on this!