104
edits
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Line 398:
Line 398: − + − + Line 420:
Line 420: − + +
PCM to ADPCM
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|-
| 1
| 1
| Given Framespeed.
| Current Framespeed.
| This is the speed of the flipnote. It's in the range of 1-8. To get the correct value, you must take 8, and subtract the decimal value of this byte.
| This is the speed of the flipnote. It's in the range of 1-8. To get the correct value, you must take 8, and subtract the decimal value of this byte.
|-
|-
| 1
| 1
| Current Framespeed when BGM was recorded.
| Given Framespeed when BGM was recorded.
| This is the speed of the flipnote when the BGM was recorded/modified. It's in the range of 1-8. This is used to resample the sound to the new speed. To get the correct value, you must take 8, and subtract the decimal value of this byte.
| This is the speed of the flipnote when the BGM was recorded/modified. It's in the range of 1-8. This is used to resample the sound to the new speed. To get the correct value, you must take 8, and subtract the decimal value of this byte.
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|-
*Then comes sound effect #3(if used)
*Then comes sound effect #3(if used)
The sound data appears to be PCM, 1 channel, 8 bits per sample, at 4096 Hz. When played back with these parameters, the audio is quite audible, BUT there is a lot of background hiss. Perhaps there is a low pass filter on the DSi audio output?
The sound data seems to be a variant of VOX ADPCM @ around 8KHz.
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