[sdiy] FW: Kawai K3 - Bandlimited Waveforms

[Paul Maddox]

Karl,

> Its interesting to note that the K3 does a poor job in this
> sample table per octave switching, one can very easily hear
> when a table are swapped in and out.

ahhh, I thought so.

> Btw, should phase accumulator NCO's be wieved as
> variable sample rate or fixed rate NCO's?

it depends IMHO.
:-)

If the output of the NCO is used directly, I would say it's fixed rate.
If the NCO is used to drive an eeprom/lookup ram/etc I would suggest
the "pair" be considered variable rate.


> I was thinking of the aliasing on an NCO using low rate
> versus one that uses a high rate (1Mhz or more).

For example, in the monowave, I consider it variable rate, with a
limit of just under 1Mhz, of 4Khz at audio rate.

Paul