Changes

178 bytes removed ,  23:17, 17 November 2014
PCM to ADPCM
Line 398: Line 398:  
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| 1
 
| 1
| Given Framespeed.  
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| 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.
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| 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)
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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?
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The sound data seems to be a variant of VOX ADPCM @ around 8KHz.
    
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