so was (or is) it Line6 or was it someone else? (this is my excuse
for responding when i said you could have the last word.)
i sayed:
"was" is not the same as "is".
On Dec 28, 2010, at 6:54 PM, Nigel Redmon wrote:
It "was" designed in. It "is" in products that I could go buy at
guitar center today. Anyway, moot point--I've never maintained that
it couldn't be done a different way, and better.
"... I can tell you that windowed sinc is involved..."
sounds pretty affirmative. it's involved. not maybe involved nor
sometimes involved.
The English language does not make such assumptions in the absence
of limiting qualifiers.
:-\
okay...
so which is more faithful to that maxim?
1. "... I can tell you that windowed sinc is involved..." when one
allows that it might not be involved.
or
2. "YES necessarily, if it's half-band." when one makes no promises if
it's not half-band.
Most of the keyboard samplers ever built use linear interpolation.
Yuck.
i'm with you there. unless a lot of memory was spent on expanding the
sample file or, using a Creative term, the "wavetable" by a factor of,
say, 64x or 128x or 256x using decent interpolation. if you did that
when loading a particular instrument or keyzone sample file (and
adjust the phase-increment in the phase accumulator proportionately),
then linear interpolation wouldn't sound half-ba_d. but it would use
a bit more real-estate on silicon than a little interpolation engine
in an ASIC or FPGA. but if i were doing this with a SHArC or
something, i might consider expanding or interpolating the sampled
sounds or tones by a large factor during Program Load (it might take a
little too much time for some users) into memory if RAM is considered
cheap, and then use linear interpolation during the real-time
playback. each voice would cost less (that using polyphase FIR
interpolation in realtime) and i could get more polyphony with each
DSP. but there would be a delay cost at Program Load time.
bestest,
--
r b-j r...@audioimagination.com
"Imagination is more important than knowledge."
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