DK680674A - - Google Patents
Info
- Publication number
- DK680674A DK680674A DK680674A DK680674A DK680674A DK 680674 A DK680674 A DK 680674A DK 680674 A DK680674 A DK 680674A DK 680674 A DK680674 A DK 680674A DK 680674 A DK680674 A DK 680674A
- Authority
- DK
- Denmark
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
- G01H3/10—Amplitude; Power
- G01H3/12—Amplitude; Power by electric means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/16—Spectrum analysis; Fourier analysis
- G01R23/20—Measurement of non-linear distortion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/30—Monitoring or testing of hearing aids, e.g. functioning, settings, battery power
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Analogue/Digital Conversion (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK358576A DK358576A (da) | 1974-01-03 | 1976-08-09 | Omsetterkredslob navnlig til akustiske testsystemer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US430462A US3922506A (en) | 1974-01-03 | 1974-01-03 | Acoustical testing system |
Publications (1)
Publication Number | Publication Date |
---|---|
DK680674A true DK680674A (da) | 1975-09-01 |
Family
ID=23707658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK680674A DK680674A (da) | 1974-01-03 | 1974-12-27 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3922506A (da) |
DE (1) | DE2461070C2 (da) |
DK (1) | DK680674A (da) |
NL (1) | NL7416771A (da) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4065647A (en) * | 1974-01-03 | 1977-12-27 | Frye G J | Automatic acoustical testing system |
US4020298A (en) * | 1975-09-15 | 1977-04-26 | Hearing Evaluation & Acoustic Research, Inc. | Apparatus for testing acoustical attenuation of hearing protectors |
GB1579735A (en) * | 1976-03-19 | 1980-11-26 | Nat Res Dev | Frequency response testing apparatus |
NL7706698A (nl) * | 1976-07-19 | 1978-01-23 | Frye G J | Automatische acoustische beproevingsinrichting. |
DE2830837C2 (de) * | 1977-07-15 | 1983-06-09 | Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa | Verfahren und Vorrichtung zur Messung der Kennwerte eines Lautsprechers |
US4191864A (en) * | 1978-08-25 | 1980-03-04 | American Hospital Supply Corporation | Method and apparatus for measuring attack and release times of hearing aids |
US4346268A (en) * | 1981-01-30 | 1982-08-24 | Geerling Leonardus J | Automatic audiological analyzer |
FR2546652B1 (fr) * | 1983-05-27 | 1985-08-09 | Michas Frederic | Banc d'essai pour chaines electroacoustiques et notamment pour appareils de correction auditive |
DE3709556A1 (de) * | 1987-03-24 | 1988-10-13 | Paul Dipl Ing Dr Ing Scherer | Verfahren und vorrichtung zur bestimmung der linearen verzerrungen einer elektroakustischen uebertragungsstrecke |
US4807165A (en) * | 1987-10-30 | 1989-02-21 | Crown International, Inc. | Method for the determination and display of signal arrival time, intensity and direction |
US5386475A (en) * | 1992-11-24 | 1995-01-31 | Virtual Corporation | Real-time hearing aid simulation |
US5644505A (en) * | 1995-04-07 | 1997-07-01 | Delco Electronics Corporation | Universal audio analyzer |
DK1250829T3 (da) * | 2000-01-25 | 2003-09-22 | Widex As | Fremgangsmåde og system til generering af et kalibreret lydfelt |
DE10202852B4 (de) * | 2002-01-24 | 2011-12-22 | Bundesrepublik Deutschland, vertr. d. d. Bundesministerium für Wirtschaft und Technologie, dieses vertr. d. d. Präsidenten der Physikalisch-Technischen Bundesanstalt | Verfahren zur Prüfung und/oder Einstellung der Übertragung von Körperschall in einen oder aus einem Probekörper und Körperschall-Bauelement |
US20070276285A1 (en) * | 2003-06-24 | 2007-11-29 | Mark Burrows | System and Method for Customized Training to Understand Human Speech Correctly with a Hearing Aid Device |
WO2005125002A2 (en) * | 2004-06-14 | 2005-12-29 | Johnson & Johnson Consumer Companies, Inc. | Low-cost hearing testing system and method of collecting user information |
US10546514B2 (en) | 2016-02-26 | 2020-01-28 | Usg Interiors, Llc | Mobile demonstration device for sound-reducing tiles |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2629000A (en) * | 1950-05-26 | 1953-02-17 | Rca Corp | Distortion analyzing apparatus |
US3327071A (en) * | 1964-01-27 | 1967-06-20 | Gen Radio Co | Method of and apparatus for computation particularly suited for microphone absolute calibration |
US3289102A (en) * | 1965-04-29 | 1966-11-29 | Bell Telephone Labor Inc | Variable frequency phase shift oscillator utilizing field-effect transistors |
US3692959A (en) * | 1970-10-28 | 1972-09-19 | Electone Inc | Digital hearing aid gain analyzer |
US3668556A (en) * | 1971-05-11 | 1972-06-06 | Ohmega Lab | Automatic gain control circuit |
-
1974
- 1974-01-03 US US430462A patent/US3922506A/en not_active Expired - Lifetime
- 1974-12-23 DE DE2461070A patent/DE2461070C2/de not_active Expired
- 1974-12-23 NL NL7416771A patent/NL7416771A/xx not_active Application Discontinuation
- 1974-12-27 DK DK680674A patent/DK680674A/da not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE2461070A1 (de) | 1975-07-10 |
NL7416771A (nl) | 1975-07-07 |
US3922506A (en) | 1975-11-25 |
DE2461070C2 (de) | 1983-10-20 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AHB | Application shelved due to non-payment |