Lab 6: AC97-lite PCM audio

Generated folder: labs/audio/

Lab 6 introduces audio as a stream of samples. You fill an audio buffer with PCM data and ask the runtime to play it.

The analogy with graphics helps. A framebuffer becomes an image; an audio buffer becomes pressure changes in the air. In both cases the device consumes bytes in a format, and the program must produce those bytes consistently.

Concept	Meaning
PCM sample	numeric amplitude at one point in time
sample rate	samples per second
channel count	mono or stereo layout
buffer	mapped memory for samples
byte count	amount the device should consume

Learn PCM audio, complete the tasks, run the checks, and compare with modern audio stacks.

TIP

Audio bugs are often unit bugs: samples, frames, channels, and bytes are not interchangeable.