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NES DPCM pitch/note table.

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Electric Keet 2023-07-19 09:50:49 -07:00
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@ -83,45 +83,6 @@ reference: [NESdev](https://www.nesdev.org/wiki/APU_Noise)
## length counter table
<!-- organized by input value... of little use -->
<!--
value | raw | NTSC | PAL | Dendy | NTSC 5-step | PAL 5-step | Dendy 5-step
-----:|----:|------:|------:|------:|------------:|-----------:|-------------:
`00` | 10 | 83ms | 100ms | 84ms | 104ms | 125ms | 105ms
`01` | 254 | 2.1s | 2.5s | 2.1s | 2.6s | 3.2s | 2.7s
`02` | 20 | 166ms | 200ms | 168ms | 208ms | 250ms | 210ms
`03` | 2 | 17ms | 20ms | 17ms | 21ms | 25ms | 21ms
`04` | 40 | 333ms | 400ms | 336ms | 417ms | 500ms | 421ms
`05` | 4 | 33ms | 40ms | 34ms | 42ms | 50ms | 42ms
`06` | 80 | 667ms | 800ms | 673ms | 833ms | 1.0s | 841ms
`07` | 6 | 50ms | 60ms | 50ms | 63ms | 75ms | 63ms
`08` | 160 | 1.3s | 1.6s | 1.3s | 1.7s | 2.0s | 1.7s
`09` | 8 | 67ms | 80ms | 67ms | 83ms | 100ms | 84ms
`0A` | 60 | 500ms | 600ms | 505ms | 625ms | 750ms | 631ms
`0B` | 10 | 83ms | 100ms | 84ms | 104ms | 125ms | 105ms
`0C` | 14 | 117ms | 140ms | 118ms | 146ms | 175ms | 147ms
`0D` | 12 | 100ms | 120ms | 101ms | 125ms | 150ms | 126ms
`0E` | 26 | 217ms | 260ms | 219ms | 271ms | 325ms | 273ms
`0F` | 14 | 117ms | 140ms | 118ms | 145ms | 175ms | 147ms
`10` | 12 | 100ms | 120ms | 101ms | 125ms | 150ms | 126ms
`11` | 16 | 133ms | 160ms | 135ms | 167ms | 200ms | 168ms
`12` | 24 | 200ms | 240ms | 202ms | 250ms | 300ms | 252ms
`13` | 18 | 150ms | 180ms | 151ms | 188ms | 225ms | 189ms
`14` | 48 | 400ms | 480ms | 404ms | 500ms | 600ms | 505ms
`15` | 20 | 167ms | 200ms | 168ms | 208ms | 250ms | 210ms
`16` | 96 | 800ms | 960ms | 807ms | 1.0s | 1.2s | 1.0s
`17` | 22 | 183ms | 220ms | 185ms | 229ms | 275ms | 231ms
`18` | 192 | 1.6s | 1.9s | 1.6s | 2.0s | 2.4s | 2.0s
`19` | 24 | 200ms | 240ms | 202ms | 250ms | 300ms | 252ms
`1A` | 72 | 600ms | 720ms | 606ms | 750ms | 900ms | 757ms
`1B` | 26 | 217ms | 260ms | 219ms | 271ms | 325ms | 273ms
`1C` | 16 | 133ms | 160ms | 135ms | 167ms | 200ms | 168ms
`1D` | 28 | 233ms | 280ms | 235ms | 292ms | 350ms | 294ms
`1E` | 32 | 267ms | 320ms | 269ms | 333ms | 400ms | 336ms
`1F` | 30 | 250ms | 300ms | 252ms | 313ms | 375ms | 315ms
-->
<!-- organized by resulting times... more useful! -->
value | raw | NTSC | PAL | Dendy | NTSC 5-step | PAL 5-step | Dendy 5-step
-----:|----:|------:|------:|------:|------------:|-----------:|-------------:
`03` | 2 | 17ms | 20ms | 17ms | 21ms | 25ms | 21ms
@ -161,21 +122,24 @@ reference: [NESdev](https://www.nesdev.org/wiki/APU_Length_Counter)
## DPCM frequency table
value | NTSC | PAL
------|----------:|----------:
`00` | 4181.7Hz | 4177.4Hz
`01` | 4709.9Hz | 4696.6Hz
`02` | 5264.0Hz | 5261.4Hz
`03` | 5593.0Hz | 5579.2Hz
`04` | 6257.9Hz | 6023.9Hz
`05` | 7046.3Hz | 7044.9Hz
`06` | 7919.3Hz | 7917.2Hz
`07` | 8363.4Hz | 8397.0Hz
`08` | 9419.9Hz | 9446.6Hz
`09` | 11186.1Hz | 11233.8Hz
`0A` | 12604.0Hz | 12595.5Hz
`0B` | 13982.6Hz | 14089.9Hz
`0C` | 16884.6Hz | 16965.4Hz
`0D` | 21306.8Hz | 21315.5Hz
`0E` | 24858.0Hz | 25191.0Hz
`0F` | 33143.9Hz | 33252.1Hz
value | NTSC freq | NTSC note | PAL freq | PAL note
-----:|----------:|:----------:|----------:|:----------:
`00` | 4181.7Hz | C-8 - 2¢ | 4177.4Hz | C-8 - 4¢
`01` | 4709.9Hz | D-8 + 4¢ | 4696.6Hz | D-8 - 1¢
`02` | 5264.0Hz | E-8 - 3¢ | 5261.4Hz | E-8 - 4¢
`03` | 5593.0Hz | F-8 + 2¢ | 5579.2Hz | F-8 - 3¢
`04` | 6258.0Hz | G-8 - 4¢ | 6023.9Hz | G-8 - 70¢
`05` | 7046.4Hz | A-8 + 2¢ | 7044.9Hz | A-8 + 1¢
`06` | 7919.4Hz | B-8 + 4¢ | 7917.2Hz | B-8 + 3¢
`07` | 8363.4Hz | C-9 - 2¢ | 8397.0Hz | C-9 + 5¢
`08` | 9419.9Hz | D-9 + 4¢ | 9446.6Hz | D-9 + 9¢
`09` | 11186.1Hz | F-9 + 2¢ | 11233.8Hz | F-9 + 9¢
`0A` | 12604.0Hz | G-9 + 8¢ | 12595.5Hz | G-9 + 7¢
`0B` | 13982.6Hz | A-9 - 12¢ | 14089.9Hz | A-9 + 1¢
`0C` | 16884.6Hz | C-10 + 15¢ | 16965.4Hz | C-10 + 23¢
`0D` | 21306.8Hz | E-10 + 17¢ | 21315.5Hz | E-10 + 18¢
`0E` | 24858.0Hz | G-10 - 16¢ | 25191.0Hz | G-10 + 7¢
`0F` | 33143.9Hz | C-11 - 18¢ | 33252.1Hz | C-11 - 12¢
reference: [NESdev](https://www.nesdev.org/wiki/APU_DMC#Pitch_table)