The John W. Coltman Archive

5.01

Acoustic properties of pipes

11/9/59 - 12/20/59

5.02

Played frequencies of flute specimens

9/ /64 - 10/ /64

5.03

Resonance and sounding frequencies

11/24/65/ - 1/2/66

5.04

Acoustic properties of pipes

1/3/66-11/6/66

5.05

Impedance of jet, strobe photos of jet

2/8/67 - 1/7/68

5.06

Phase velocity on jet, Q of pipes, characterizing instruments

1/27/68 - 1/7/68

5.07

Experiment on double organ pipe. Publication 1.05

1/30/69 - 10/6/69

5.08

Experiment on mouth resonance effects. Publication 1.09

3/19/69 - 4/23/69

5.09

Test flutes of different materials, side holes, artificial blowing

1/12/70 - 8/12/70

5.10

Jet drive mechanisms in edge tones

8/30/70 - 12/12/70

5.11

Finger holes in the Boehm flute

1/30/71 - 3/20/71

5.12

Drive mechanisms in organ pipes

1/16/71 - 12/3/71

5.13

Acoustically excited free jet

1/8/72 - 2/11/72

5.14

Notes from 2/11/72 to 3/9/73 are missing.

2/11/72-5/2/73

5.15

Further calculations on organ pipe drives

5/2/73-10/27/73

5.16

The Intonation of Antique and Modern Flutes

12/19/73 -3/26/74

5.17

Resonances, blowing effects, intonation

12/3/73 - 5/24/74

5.18

Finger holes, keys and cavities

4/20/74 - 9/ /74

5.19

Murray Flute - Armstrong prototype

15/13/74 - 8/25/74

5.20

Non-Linear effects in closed tubes

12/ /74 - 1/12/75

5.21

Fifty Flutists -- Tests of flute at NFA Convention

1/27/75- 11/19/75

5.22

Cooper Scale flutes

11/05/74 - 8/15/76

5.23

No cavity flute, Cooper-Powell, misc. calculations

10/21/75 - 1/14/76

5.24

Jack Moore and his flutes

2/12/76 - 11/1/76

5.25

Analyses of lossy flute using Smith chart impedance diagram

3/30/76 - 11/1/76

5.26

A new C# for the Boehm Flute

4/19/76 - 10/15/76

5.27

Alto Saxophone Measurements

12/9/76 - 5/ /77

5.28

Tee head, flute designs, cork considerations

12/22 /76 - 12/28/77

5.29

Wavelength, multiphonics, flute in F and piccolo, porosity in wall

2/3/78 - 10/8/78

5.30

Scales of various flutes, High E modes, jet wave analysis

1/ /79 - 9/4/79

5.31

Intonation studies of Alto Saxophones for Conn Artley Division

4/13/79 - 7/2/79

5.32

Momentum transfer in jet excitation of flute-like instruments

12/7/79 - 5/23/80

5.33

Correspondence with William Strong

12/15/80- 5/2/80

5.34

The trumpet as a parametric oscillator

3/15/81- 7/1/81

5.35

Conical bores, Powell dimensions, blown resonator, E5 tone

1/25/81 - 6/28/81

5.36

Bore size, mode inharmonicity, recurved head, some flutes

8/25/81 -12/11/82

5.37

Theobald Boehm and the scale of the modern flute, Part 1

11/25/81 - 6/28/819

5.38

Theobald Boehm and the scale of the modern flute, Part 2.

7/30/82 - 6/3/83

5.39

Recurved heads, Emerson, Moore, & Wimberly flutes, tone holes

7/12/83 -12/21/83

5.40

Coltman scale, Wimberly

4/6/84 - 4/19/84

*

5.41

Alto Flutes

4/10/83 - 3/18/95

*

5.42

Coltman design of alto flute for Emerson

4/16/84 - 7/2/84

5.43

Recorder stability, Shakuhachi head, trill key positions

3/19/84 - 8/28/85

5.44

Drelinger headjoint, jet excursions, Tom Green flute

3/29/85 - 5/26/85

5.45

Smooth bore flute, split E, stepped head joint, Wimberly #42

3/2/85 - 6/9/86

5.46

Time domain simulation of the flute, Part 1

6/ /83 - / /84

5.47

Time domain simulation of the flute, Part 2

9/4 /84 - 2/11/91

5.48

Behavior of acoustically excited jet, Part 1

11/ /87 - 1/3/89

5.49

Behavior of acoustically excited jet, Part 2

2/6/89 - 5/14/89

5.50

Behavior of acoustically excited jet, Part 3

5/5/89 - 9/25/91

5.51

Behavior of acoustically excited jet, Part 4

9/30/91 - 11/1/91

5.52

Q & A on Flute acoustics

12/18/88 - 11/1/90

*

5.53

Bass and Contra-bass flutes

9/ /83 - 3/26/96

5.54

Leak, inverted cone, BASIC programs, mode stretch, spectra

3/3/87 - 9/25/91

*

5.55

Piccolo studies, Armstrong, Conn, several others

10/25/89 - 1/15/90

*

5.56

Piccolo bench measurements

3/11/90 - 7/15/90

5.57

Hirschberg correspondence on jets, organ pipes

12/6/90 - 5/31/92

5.58

Tube resonances, losses in the Boehm flute

5/19/92 - 4/15/93

5.59

Conical and cylindrical piccolo spectra (Rhian Kenny)

5/29/91 - 7/17/91

5.60

Repeated impulse (spark) impedance method

2/5/92 - 4/21/92

5.61

Spectra of Goosman, Powell headjoints, Emerson flutes

3/20/92 - 5/26/92

5.62

Scale design of Boehm flute, Charles Teach'em Howe

5/23/93 - 12/26/93

5.63

Just noticeable differences in the timbre of the flute

10/7/94 - 3/28/96

5.64

Diameter, phase, oboe reed

12/21/94 - / /97

5.65

Mode spacing and the sound of early flutes

9/7/95 - 9/22/95

5.66

Losses in Bassoon pads, instrument bores

5/9/94 ---- / /97

5.67

Head joint designs

6/23/95 - 10/18/99

5.68

Wolfe and Smith - Acoustic impedance spectroscopy

5/10/96 - 5/30/97

5.69

Flute intonation in performance

9/17/97 - 5/17/98

5.70

Phelan, Hirshberg, Landell

11/16/93 - 5/7/99

5.71

Double Helmholz experiment , flow, Ocarina aperture losses

8/10/99 - 2/01/01

5.72

Loss in apertures, transmission lines, stepped bores, pad losses

3/05/01- 3/13/02

5.73

Loss in apertures, bamboo resonator, acoustics, humidity loss

5/06/02 - 6/18/03

5.74

Toroid height, ocarinas, NY flutes, marimba resonators, C hole, miter bend, shakuhachi head, quena, keratoscope, Newgrange cave

7/1/03 - 2/03/06

5.75

Piccolo design

5/02/03 - 8/27/04