Framework for dealing with wave files
Objective-C
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WaveTools.xcodeproj
WaveTools
WaveToolsTests
README.markdown

README.markdown

WaveTools

WaveTools is a framework for manipulating audio files; WAVE files (.wav) in particular.

DWTWaveChunk

The DWTWaveChunk family of classes provides information about the chunks in a RIFF WAVE file. To read a WAVE file, use

NSData* fileData = [NSData dataWithContentsOfFile:@"myfile.wav"];
NSArray* chunks = [[DWTWaveChunk class] processChunksInData:fileData];
NSAssert([chunks count] == 1, @"A valid WAV file has only one chunk");
DWTWaveChunk* firstChunk = [chunks objectAtIndex:0];
NSAssert([firstChunk.chunkID isEqualToString:@"RIFF"], @"expected a RIFF chunk");

You can then use the RIFF chunk (which is firstChunk in the above code snippet) and its subchunks to explore the contents of the WAVE file.

See the Wave Explorer application for an application using the framework DWTWaveChunk classes.

Math functions

There are a few miscellaneous math functions available in DWTMath.h.

Future Functionality

I plan to add sample rate conversion, dithering, and more chunk types. The goal of the chunk types is to be able to read region definitions from the file, and possibly adjust them when sample rate converting the file.