Quote:
Originally Posted by dale116dot7  To multiply with sufficient precision to do a linear interpolate, I would guess that four lines of code are likely needed for each chorus certainly on something like the PCM70 or 480L. But the 224 uses a 6-bit multiplier which would be on the ragged edge of being able to pull off a chorus in two lines. |
Ragged edge is probably good enough for this application. The SST-282 that Casey brought up used NO interpolation for its modulated feedback taps. It just went ahead and moved them.
Casey's interpolation example used 32 discrete steps between samples. This was probably not meant to be an ideal example, of course. It seems like the 224 might have 64 possible steps for its interpolation if using the two line chorusing, which may produce acceptable results.
Sean