NESdev Wiki, “APU DMC”

Cite as: NESdev Wiki, “APU DMC”
Original: https://www.nesdev.org/wiki/APU_DMC
sha256: 8f72a2f55549bb699dac6d9fc49aa5d6a252806d059b85d038f9ae7dbd2f2d4f
Version: oldid 23783
Archived: https://web.archive.org/web/20260810115101/https://www.nesdev.org/wiki/APU_DMC
Accessed: 2026-10-21
Licence: none stated on the page
Credit: NESdev Wiki editors (nesdev.org); see the page history.
Notes: Read from the Wayback capture of 2026-08-10 (revision 23783). Used for the rate table and the sample address and length formulas.

Cited on

The delta modulation channel (DMC) plays 1-bit delta-encoded samples from $$ C 000 + 64 A$ , $16 L + 1$ bytes long, at one of 16 rates; a program can also load its 7-bit output level directly through `$4011`.	`leadOverviewOverviewPitch table`	Wiki
The 16 sample entries play 9 recordings, some reused at a lower rate or cut short; their rate bytes are `$0F` (33,144 Hz) for most, and `$0E` (24,858 Hz) or `$0D` (21,307 Hz) for some of the reused copies.	`Pitch table`	Code