On 12/23/2013 07:20 PM, Steve Morris wrote:
Hi Joel,
I'm not much help on knowing how to implement this in Chuck but I am
curious what kind of pitch extraction algorithm you intend to use.
I've reviewed quite a few but never found one I really liked. It is a
tricky problem (What is the difference between a chord and an note
from an instrument with harmonics? Theoretically not much.) but based
on the number of commercial packages that claim to be doing score
extraction I assume there has been some progress since the last time I
checked.
I've been very impressed with Katja's helmholtz~ pitch tracker in Pd; I
wrote an implementation in RTcmix but I think it can be very useful in
ChucK. I'm not so interested in polyphonic score extraction; I know
there has been success in the proprietary sphere but I think that
monophonic tracking is sufficient to produce some interesting work in ChucK.
-Steve (aka zencuke)
PS. I've looked but I've found very little public documentation for
any kind of ChucK extension capabilities whether at the C++ level or
ChucK (ChuGin etc.) level. Most of the support focus (documentation
etc) seems to be on naive users and/or beginners. That's good but it
sort of leaves users trying to do sophisticated things out in the
cold. ChucK seems more targeted as a classroom teaching vehicle than
as a serious music tool.
It is of course a very good tool for teaching music coding, but I see no
reason that it can't be a serious music tool as well. It's a young
language, and definitely needs a documentation push (there is a new book
and, thanks to Coursera, the beginnings of a coding community). But the
new developments in 1.3 (String parsing, Serial, and ChuGins) have great
potential.
There doesn't seem to be much interest in developing and supporting a
serious ChucK user community. I'm learning that there are quite a few
serious users but they mostly seem to work in isolation. I like ChucK
but I'm thinking of switching to SuperCollider for serious work and
only using ChucK for quick simple experiments. The SuperCollider
community seems to encourage serious users. At least the advanced
interfaces are documented.
On Mon, Dec 23, 2013 at 6:04 PM, Joel Matthys <[email protected]
<mailto:[email protected]>> wrote:
I'm trying to implement a good pitch tracker as a ChuGin. Is there
any kind of tutorial or walk-through that anyone has done?
A few questions:
- Is it possible to create a UAna ChuGin or must it be a UGen?
- How do you suggest implementing an FFT-based instrument which
uses 1024 or 2048 sample frames for analysis?
- Besides the CCRMA paper and the source code, is there any
documentation of ChuGin programming?
Thanks!
Joel
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