Saxophone physical model.
in RTcmix/insts/stk
MSAXOFONY(outsk, dur, AMP, FREQ, NOISEAMP, maxpressure, REEDSTIFF, APERTURE, BLOWPOS[, PAN, BREATHENV])
CAPITALIZED parameters are pfield-enabled for table or dynamic control (see the maketable or makeconnection scorefile commands). Parameters after the [bracket] are optional and default to 0 unless otherwise noted.
| Param Field | Parameter | Units | Dynamic | Optional | Notes |
|---|---|---|---|---|---|
| p0 | output start time | seconds | no | no | |
| p1 | duration | seconds | no | no | |
| p2 | gain | absolute, for 16-bit soundfiles: 0-32768 | yes | no | |
| p3 | frequency | Hz | yes | no | |
| p4 | noise gain | 0.0-1.0 | yes | no | |
| p5 | max pressure | 0.0-1.0 | no | no | |
| p6 | reed stiffness | 0.0-1.0 | yes | no | |
| p7 | reed aperture | 0.0-1.0 | yes | no | |
| p8 | blow position | 0.0-1.0 | yes | no | |
| p9 | pan | 0-1 stereo; 0.5 is middle | yes | yes | default: 0.5 |
| p10 | breath pressure | reference to a pfield table-handle | yes | yes | if 0, value defaults to 1.0 |
Parameters labled as Dynamic can receive dynamic updates from a table or real-time control source.
Author: Brad Garton, based on code from the Synthesis ToolKit
MSAXOFONY is the “Saxofony” physical model in Perry Cook and Gary Scavone’s STK, the Synthesis ToolKit.
MSAXOFONY – it’s a late, smoky night in the Naked City. Echoing through the alleyway, diffracted by several dozen fire escapes, comes the throaty, creaky/squeaky sound of a lazy blues… from a laptop!
Well, not really – but someday. MSAXOFONY implements a physical model of a sax. Yeah, daddy-oh.
Here’s what Gary says about “Saxofony”:
The model is similar in many ways to the MCLAR and MBLOWHOLE models.
Be aware that some combinations of parameters will yield no sound. The ‘physics’ have to work correctly!
The optional ‘breath pressure table’ (p8, “BREATHENV”) functions independently of an amplitude-control envelope used in p2 (“AMP”). This allows you to design sharp attacks, etc.
MSAXOFONY can produce other mono or stereo output.
very basic:
rtsetparams(44100, 2)
load("MSAXOFONY")
breathenv = maketable("line", 1000, 0,1, 2,0)
MSAXOFONY(0, 3.5, 20000.0, 243.0, 0.2, 0.7, 0.5, 0.3, 0.6, 0.5, breathenv)
MSAXOFONY(4, 3.5, 20000.0, 149.0, 0.2, 0.7, 0.5, 0.3, 0.6, 0.5, breathenv)
slightly more advanced:
rtsetparams(44100, 2)
load("MSAXOFONY")
noiseamp = maketable("line", 1000, 0,1, 1,0, 2,1)
aperture = makeLFO("sine", 2.0, 0.1, 0.7)
blowpos = maketable("line", 1000, 0,0.5, 1,0.2, 3,0.8)
MSAXOFONY(0, 3.5, 15000.0, 243.0, noiseamp, 0.7, 0.5, aperture, blowpos)
amp = maketable("line", 1000, 0,0,1,1, 2,0)
freq = makeLFO("sine", 4.0, 145, 150)
reed = makeLFO("sine", 1.5, 0.1, 0.9)
pan = maketable("line", 1000, 0,0.5, 1,1, 2,0, 2.5,1)
MSAXOFONY(4, 3.5, amp*10000.0, freq, 0.2, 0.7, reed, 0.3, 0.6, pan)
bamp = maketable("line", 1000, 0,0, 2,1, 10,1, 11,0)
MSAXOFONY(8, 3.5, 20000.0, 178.0, 0.2, 0.7, 0.5, 0.3, 0.6, 0.5, bamp)
maketable, CLAR, MLOWBOTL, MBLOWHOLE, MBOWED, MBRASS, MCLAR, METAFLUTE