SE8404798L - PROCEDURE AS WANTED FOR AN ACOUSTIC SWITCHING SYSTEM CONSISTING OF A STRICT UPPENDING ON A RESONANCE BOTTLE BRINGING TO SELF-TURN - Google Patents
PROCEDURE AS WANTED FOR AN ACOUSTIC SWITCHING SYSTEM CONSISTING OF A STRICT UPPENDING ON A RESONANCE BOTTLE BRINGING TO SELF-TURNInfo
- Publication number
- SE8404798L SE8404798L SE8404798A SE8404798A SE8404798L SE 8404798 L SE8404798 L SE 8404798L SE 8404798 A SE8404798 A SE 8404798A SE 8404798 A SE8404798 A SE 8404798A SE 8404798 L SE8404798 L SE 8404798L
- Authority
- SE
- Sweden
- Prior art keywords
- change
- string
- over switch
- sounding
- board
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10G—REPRESENTATION OF MUSIC; RECORDING MUSIC IN NOTATION FORM; ACCESSORIES FOR MUSIC OR MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR, e.g. SUPPORTS
- G10G7/00—Other auxiliary devices or accessories, e.g. conductors' batons or separate holders for resin or strings
- G10G7/02—Tuning forks or like devices
Abstract
The invention refers to a procedure with which a string mounted on a sounding-board is made to oscillate itself with its fundamental tone or is adjustable with some of the string's natural overtones and includes a magnetic, piezoelectric, or electric condenser microphone (1a, 1b or 1c) for intercepting the shift within the tone frequency area as well and an amplifier (2) connected to this for amplifying the intercepted shifts, in part with the aid of an octave change-over switch (4) and a tone change-over switch (5) adjustable band-pass filter (3), which is designed to let the intended oscillating frequencies of the tones through by means of the change-over switches, in part an amplifier (9) with logarithmic amplifying characteristics, adjustable maximum output voltage, phase regulation controlled by an octave change-over switch (4) with manual fine-tuning (10) and in part a change-over switch (11) for alternative feedback of the oscillatory energy via a speaker (12), sounding-board (15) and sound step (16) to the string (14) or via a magnetic driver device (13) directly contact-free affecting the string, at which self-oscillation is attained at the right phase position in the feedback oscillation. With the use of an electric condenser microphone (1c) or speaker (12) coarse regulation of the phase position occurs also with distance adjustment between this and the sounding-board (15).<IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8404798A SE8404798L (en) | 1984-09-25 | 1984-09-25 | PROCEDURE AS WANTED FOR AN ACOUSTIC SWITCHING SYSTEM CONSISTING OF A STRICT UPPENDING ON A RESONANCE BOTTLE BRINGING TO SELF-TURN |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8404798A SE8404798L (en) | 1984-09-25 | 1984-09-25 | PROCEDURE AS WANTED FOR AN ACOUSTIC SWITCHING SYSTEM CONSISTING OF A STRICT UPPENDING ON A RESONANCE BOTTLE BRINGING TO SELF-TURN |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8404798D0 SE8404798D0 (en) | 1984-09-25 |
SE441712B SE441712B (en) | 1985-10-28 |
SE8404798L true SE8404798L (en) | 1985-10-28 |
Family
ID=20357124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8404798A SE8404798L (en) | 1984-09-25 | 1984-09-25 | PROCEDURE AS WANTED FOR AN ACOUSTIC SWITCHING SYSTEM CONSISTING OF A STRICT UPPENDING ON A RESONANCE BOTTLE BRINGING TO SELF-TURN |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE8404798L (en) |
-
1984
- 1984-09-25 SE SE8404798A patent/SE8404798L/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE441712B (en) | 1985-10-28 |
SE8404798D0 (en) | 1984-09-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4245540A (en) | Sound sustaining device for musical instruments | |
SE8700009L (en) | CONTROLLED POWER CONVERTER | |
DK0847674T3 (en) | Musical instruments incorporating speakers | |
WO2000013392A8 (en) | Piezoelectric vibrational and acoustic alert device | |
DK0477591T3 (en) | amplifier unit | |
US2001392A (en) | Method and apparatus for the production of music | |
SE8404798L (en) | PROCEDURE AS WANTED FOR AN ACOUSTIC SWITCHING SYSTEM CONSISTING OF A STRICT UPPENDING ON A RESONANCE BOTTLE BRINGING TO SELF-TURN | |
GB2036406A (en) | Electroacoustic device for an alarm watch | |
US4023162A (en) | Electronic buzzer | |
DK77888D0 (en) | CIRCUIT FOR THE REPRESSION OF Vibrations | |
GB2335820A (en) | Speaker device with hemispherical piezoelectric diaphragm operated below resonance | |
BR9004306A (en) | PIEZO-ELECTRIC SPEAKER FOR HIGH FREQUENCIES PERFECTED | |
US2152177A (en) | Sound-wave generator | |
ES2206348T3 (en) | DIALECTRIC RESONATOR OSCILLATOR AND VOCAL CONTROL DEVICE. | |
US2613568A (en) | Musical sound generating device | |
GB2248950A (en) | A voltage step up regulator | |
KR950022554A (en) | Goldo phone | |
JP2625801B2 (en) | Electric musical instrument | |
FR2291675A1 (en) | Loud-speaker enclosure - has main section with loud-speaker and two tuned complementary sections to improve acoustic characteristics | |
AU4915699A (en) | Acoustic resonator with bored open volume | |
USRE29010E (en) | Oral cavity size controlled musical sound apparatus and method | |
JPH0432874Y2 (en) | ||
JPH0711757B2 (en) | Portable musical instruments | |
JPS5941198B2 (en) | sound device | |
SU1754098A1 (en) | Device for microwave reflexotherapy |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 8404798-4 Effective date: 19891006 Format of ref document f/p: F |