IT1258548B - Electronic device for autoregulation of the acoustic pressure of music, especially for ballrooms - Google Patents

Electronic device for autoregulation of the acoustic pressure of music, especially for ballrooms

Info

Publication number
IT1258548B
IT1258548B ITBO920215A ITBO920215A IT1258548B IT 1258548 B IT1258548 B IT 1258548B IT BO920215 A ITBO920215 A IT BO920215A IT BO920215 A ITBO920215 A IT BO920215A IT 1258548 B IT1258548 B IT 1258548B
Authority
IT
Italy
Prior art keywords
program
acoustic pressure
pressure
intervention
time
Prior art date
Application number
ITBO920215A
Other languages
Italian (it)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to ITBO920215A priority Critical patent/IT1258548B/en
Publication of ITBO920215A0 publication Critical patent/ITBO920215A0/en
Publication of ITBO920215A1 publication Critical patent/ITBO920215A1/en
Application granted granted Critical
Publication of IT1258548B publication Critical patent/IT1258548B/en

Links

Landscapes

  • Auxiliary Devices For Music (AREA)

Abstract

The device provides a microphone 1, which picks up the acoustic pressure, followed by an amplifier 2 and by program-controlled preselectable weighting filters 3. The signal picked up is then processed by a logarithmic amplifier to linearize the values in dB. The signal then goes to a converter 5 (RMS detector) and, having been transformed into a dc voltage proportional to the acoustic pressure, it arrives at an integration circuit 6 which averages out the measurement over time. Finally, the signal arrives at a microprocessor 7, programmable by keypad 8 and visualising on a display 9 the various functions, then intervening, based on a clock 10, to activate the digital outputs 11, the analog output 12, and the data on a printer 13. Said outputs in digital and analog mode can control the VCA which is amplified and controlled 14 to regulate the acoustic pressure in relation to the specified program. In order to program the device, using a keyboard 8 with key head, the program is activated and the sampling times are set: the waiting time before the intervention, the intervention time to reset the pressure, and the maximum allowable pressure is determined. One then programs the intervention time as a function of the time intervals and selects the weighting filter 3, the constant 6, the printer if any, and the clock 10. <IMAGE>
ITBO920215A 1992-05-27 1992-05-27 Electronic device for autoregulation of the acoustic pressure of music, especially for ballrooms IT1258548B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITBO920215A IT1258548B (en) 1992-05-27 1992-05-27 Electronic device for autoregulation of the acoustic pressure of music, especially for ballrooms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO920215A IT1258548B (en) 1992-05-27 1992-05-27 Electronic device for autoregulation of the acoustic pressure of music, especially for ballrooms

Publications (3)

Publication Number Publication Date
ITBO920215A0 ITBO920215A0 (en) 1992-05-27
ITBO920215A1 ITBO920215A1 (en) 1993-11-27
IT1258548B true IT1258548B (en) 1996-02-27

Family

ID=11338325

Family Applications (1)

Application Number Title Priority Date Filing Date
ITBO920215A IT1258548B (en) 1992-05-27 1992-05-27 Electronic device for autoregulation of the acoustic pressure of music, especially for ballrooms

Country Status (1)

Country Link
IT (1) IT1258548B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016184A1 (en) * 2004-03-30 2005-11-03 Beyer Dynamic Gmbh & Co Method for preventing hearing damage and hearing protection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016184A1 (en) * 2004-03-30 2005-11-03 Beyer Dynamic Gmbh & Co Method for preventing hearing damage and hearing protection device
DE102004016184B4 (en) * 2004-03-30 2008-06-26 Beyer Dynamic Gmbh & Co Method for preventing hearing damage and hearing protection device

Also Published As

Publication number Publication date
ITBO920215A0 (en) 1992-05-27
ITBO920215A1 (en) 1993-11-27

Similar Documents

Publication Publication Date Title
EP0693249B1 (en) Adaptive gain and filtering circuit for a sound reproduction system
DE3669250D1 (en) VIDEO SIGNAL LEVEL CONTROL.
DK0578021T3 (en) Hearing aid
CA2001484A1 (en) Ghost cancelling device
IT1258548B (en) Electronic device for autoregulation of the acoustic pressure of music, especially for ballrooms
DK559587D0 (en) TONE CONTROL SYSTEM FOR EXAMPLED DATA SIGNALS
ATE193797T1 (en) HEARING AID WITH IMPROVED PERCENTILE GENERATOR
WO2003085484A3 (en) Apparatus for neuromuscular measurement and control
KR960701408A (en) METHOD FOR ADJUSTING AN ADAPTIVE EXPONENTIAL FILTER
ES2040645A2 (en) Sound alarm and sound level limiting device
JPS554532A (en) Device for displaying electronic level by liquid crystal
JPS55161452A (en) Tone ringer
KR940008866B1 (en) Automatic control apparatus for buzzer sound
JPS57131193A (en) Audio device
KR930006541Y1 (en) Speech recognition device of isolating word
JPS6413262A (en) Digital sound recording device
JPS63122352A (en) Setting device for modem output level of communication equipment
JPS5651611A (en) Ad converter for fetching air flow sensor output
JPS5689196A (en) Microphone device
JPS55124027A (en) In-room sound field parameter measuring apparatus
JPH07333366A (en) Pressure measuring apparatus
JPS54133810A (en) Automatic merit calculation unit
JPS57103494A (en) Remote control device
GB2267569A (en) Stroboscope control
JPS6437666A (en) Digital signal processor

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970530