Physical model flute.
in RTcmix/insts/std
SFLUTE(outskip, dur, noiseamp, length1 (samples), length2 (samples), amp[, pan])
VSFLUTE(outskip, dur, noiseamp, length1low (samples), length1high (samples), length2low (samples), length2high (samples), amp, vibfreq1low (Hz), vibfreq1high (Hz), vibfreq2low (Hz), vibfreq2high (Hz)[, pan])
BSFLUTE(outskip, dur, noiseamp, length1low (samples), length1high (samples), length2low (samples), length2high (samples), amp[, pan])
LSFLUTE(outskip, dur, noiseamp, length1 (samples), length2 (samples), amp[, pan])
METAFLUTE is a family of instruments implmenting a physical model of a flute. The different versions allow for pitch-bending (BSFLUTE, vibrato (VSFLUTE), and an ‘unarticulated’ (legato) attack (LSFLUTE – SFLUTE is the basic model).
SFLUTE
| Param Field | Parameter | Units | Dynamic | Optional | Notes |
|---|---|---|---|---|---|
| p0 | output start time | seconds | no | no | |
| p1 | duration | seconds | no | no | |
| p2 | noise amplitude | relative to overall amplitude; usually 0-1 | no | no | |
| p3 | length1 | samples, usually 5-200 | no | no | |
| p4 | length2 | samples, usually 5-200 | no | no | |
| p5 | amplitude multiplier | relative multiplier of input signal | no | no | |
| p6 | pan | 0-1 stereo; 0.5 is middle | no | yes | default: 0 |
Because this instrument has not been updated for pfield control, the older makegen control envelope sysystem should be used:
Assumes function table 1 is the noise amplitude envelope function table 2 is the overall amplitude envelope
Parameters after the [bracket] are optional and default to 0 unless otherwise noted.
Author: Brad Garton
VSFLUTE
| Param Field | Parameter | Units | Dynamic | Optional | Notes |
|---|---|---|---|---|---|
| p0 | output start time | seconds | no | no | |
| p1 | duration | seconds | no | no | |
| p2 | noise amplitude | relative to overall amplitude; usually 0-1 | no | no | |
| p3 | length1 low value | samples, usually 5-200 | no | no | |
| p4 | length1 high value | samples, usually 5-200 | no | no | |
| p5 | length2 low value | samples, usually 5-200 | no | no | |
| p6 | length2 high value | samples, usually 5-200 | no | no | |
| p7 | amplitude multiplier | relative multiplier of input signal | no | no | |
| p8 | vibrato frequency 1 low value | Hz, usually < 20 | no | no | |
| p9 | vibrato frequency 1 high value | Hz, usually < 20 | no | no | |
| p10 | vibrato frequency 2 low value | Hz, usually < 20 | no | no | |
| p11 | vibrato frequency 2 high value | Hz, usually < 20 | no | no | |
| p12 | pan | 0-1 stereo; 0.5 is middle | no | yes | default: 0 |
Because this instrument has not been updated for pfield control, the older makegen control envelope sysystem should be used:
assumes function table 1 is the noise amplitude envelope function table 2 is the overall amplitude envelope, function table 3 is the vibrato waveform for length1 (between p3 and p4), function table 4 is the vibrato waveform for length2 (between p5 and p6)
Parameters after the [bracket] are optional and default to 0 unless otherwise noted.
Author: Brad Garton
BSFLUTE
| Param Field | Parameter | Units | Dynamic | Optional | Notes |
|---|---|---|---|---|---|
| p0 | output start time | seconds | no | no | |
| p1 | duration | seconds | no | no | |
| p2 | noise amplitude | relative to overall amplitude; usually 0-1 | no | no | |
| p3 | length1 low value | samples, usually 5-200 | no | no | |
| p4 | length1 high value | samples, usually 5-200 | no | no | |
| p5 | length2 low value | samples, usually 5-200 | no | no | |
| p6 | length2 high value | samples, usually 5-200 | no | no | |
| p7 | amplitude multiplier | relative multiplier of input signal | no | no | |
| p8 | pan | 0-1 stereo; 0.5 is middle | no | yes | default: 0 |
Because this instrument has not been updated for pfield control, the older makegen control envelope sysystem should be used:
assumes function table 1 is the noise amplitude envelope function table 2 is the overall amplitude envelope, function table 3 is the control envelope for length1 (between p3 and p4), function table 4 is the control envelope for length2 (between p5 and p6)
Parameters after the [bracket] are optional and default to 0 unless otherwise noted.
Author: Brad Garton
LSFLUTE
| Param Field | Parameter | Units | Dynamic | Optional | Notes |
|---|---|---|---|---|---|
| p0 | output start time | seconds | no | no | |
| p1 | duration | seconds | no | no | |
| p2 | noise amplitude | relative to overall amplitude; usually 0-1 | no | no | |
| p3 | length1 | samples, usually 5-200 | no | no | |
| p4 | length2 | samples, usually 5-200 | no | no | |
| p5 | amplitude multiplier | relative multiplier of input signal | no | no | |
| p6 | pan | 0-1 stereo; 0.5 is middle | no | yes | default: 0 |
Because this instrument has not been updated for pfield control, the older makegen control envelope sysystem should be used:
assumes function table 1 is the noise amplitude envelope function table 2 is the overall amplitude envelope
Parameters after the [bracket] are optional and default to 0 unless otherwise noted.
Author: Brad Garton
METAFLUTE is a physical modeling instrument based on Perry Cook’s original “Slide Flute” waveguide model. METAFLUTE has several variants: a simple flute model (SFLUTE), a model with pitch-bending (BSFLUTE), and a model with wavetable-defined vibrato (VSFLUTE). These could be consolidated into a single instrument with pfield control. Hasn’t happened yet, but probably should, because there really isn’t an equivalent in the STK instruments (MBLOWBOTL, etc.).
LSFLUTE does the same thing as SFLUTE, but without reinitializing the internal buffers, allowing you to get legato and slurred-note effects – just like a REAL flute!
The METAFLUTE instruments are older, reflected in the use of the old makegen control envelope and waveform table system as well as the use of different instruments to accomplish tasks (pitch bending, vibrato) that could easily be handled via pfield controls. The modeled flutes are also tricky to use; the tuning is dependent on the length of the slides and the ‘context’ of the note when it is played.
Specifying pitch via two slide lengths isn’t optimum, but that’s the way the model was constructed. (remember this was one of the first ones Perry did) Here is a rough tuning-table for length1 and length2 to produce a given note:
c8 == middle "C", 8.00 in oct.pc
note length1 length2
g7 112 25
ab7 106 24
a7 100 19
bb7 95 21
b7 89 19
c8 84 18
db8 79 23
d8 75 19
eb8 70 15
e8 67 16
f8 63 19
gb8 59 17
g8 56 17
ab8 53 25
a8 50 16
bb8 47 12
b8 44 11
c9 42 10
db9 39 10
d9 37 8
eb9 35 9
e9 33 18
f9 31 18
gb9 29 39
g9 28 14
ab9 26 15
a9 24 17
bb9 23 14
b9 22 34
c10 21 9
These are approximate (in fact, they were done “by ear”), so your mileage may vary.
LSFLUTE will not work if more than one SFLUTE is active. An SFLUTE note has to precede it, although it can have 0 duration. To be honest, LSFLUTE isn’t all that effectve (and I’m not sure it functions properly).
SFLUTE:
rtsetparams(44100, 2)
load("METAFLUTE")
makegen(1, 24, 1000, 0,1, 1.5,1)
makegen(2, 24, 1000, 0,0, 0.05,1, 1.49,1, 1.5,0)
SFLUTE(0, 1.5, 0.1, 40, 28, 7000)
SFLUTE(1.5, 1.5, 0.1, 40, 22, 7000)
VSFLUTE:
rtsetparams(44100, 2)
load("METAFLUTE")
makegen(1, 7, 1000, 1, 1000, 1)
makegen(2, 7, 1000, 1, 1000, 1)
makegen(3, 10, 1000, 1)
makegen(4, 10, 1000, 1)
VSFLUTE(0, 3.5, 0.1, 60,62, 30,40, 5000, 1.0,4.0, 1.0,5.0)
VSFLUTE(4, 3.5, 0.1, 48,50, 30,45, 5000, 4.0,7.0, 3.0,5.0)
BSFLUTE:
rtsetparams(44100, 2)
load("METAFLUTE")
makegen(1, 7, 1000, 1, 1000, 1)
makegen(2, 7, 1000, 1, 1000, 1)
makegen(3, 7, 1000, 0, 500, 1, 500, 0)
makegen(4, 7, 1000, 0, 1000, 1)
BSFLUTE(0, 1.5, 0.1, 40,50, 28,40, 5000)
LSFLUTE:
rtsetparams(44100, 2)
load("METAFLUTE")
makegen(1, 24, 1000, 0, 1, 1.5, 1)
makegen(2, 24, 1000, 0, 1, 1.5, 1)
SFLUTE(0.000000, 0.100000, 0.050000, 100.000000, 100.000000, 5000.000000)
LSFLUTE(0.000000, 0.280000, 0.040000, 50.000000, 16.000000, 5000.000000)
LSFLUTE(0.280000, 0.280000, 0.040000, 50.000000, 26.000000, 5000.000000)
LSFLUTE(0.560000, 0.280000, 0.040000, 20.000000, 46.000000, 5000.000000)
LSFLUTE(0.840000, 0.280000, 0.040000, 50.000000, 16.000000, 5000.000000)
makegen, CLAR, MBLOWBOTL, MBLOWHOLE, MBRASS, MCLAR, MSAXOFONY