GB374115A - Improvements in condenser microphones - Google Patents
Improvements in condenser microphonesInfo
- Publication number
- GB374115A GB374115A GB673931A GB673931A GB374115A GB 374115 A GB374115 A GB 374115A GB 673931 A GB673931 A GB 673931A GB 673931 A GB673931 A GB 673931A GB 374115 A GB374115 A GB 374115A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- gauze
- solid
- microphone
- air
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
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
- H04R19/00—Electrostatic transducers
- H04R19/04—Microphones
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
374,115. Microphones. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and OLIVER, D. A., of General Electric Co., Wembley, Middlesex. March 4, 1931, No. 6739. [Class 40 (iv).] Relates to a condenser microphone of the type in which one part of the back electrode is impermeable and the remaining part is permeable to air and consists in forming the part which is permeable to air of conducting gauze. The back electrode may be constituted by a solid annulus, the central opening of which is covered with gauze, or alternatively by a solid disc surrounded by gauze, the solid central portion being preferably considerably smaller than the diaphragm. Such a microphone is stated to have a response curve high at both ends of the audible range but low in the middle. This curve can be improved if a peak is introduced at intermediate frequencies by providing a resonant air chamber immediately in front of the diaphragm by setting the diaphragm back a short distance from the front surface of the microphone according to the desired magnitude of the effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB673931A GB374115A (en) | 1931-03-04 | 1931-03-04 | Improvements in condenser microphones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB673931A GB374115A (en) | 1931-03-04 | 1931-03-04 | Improvements in condenser microphones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB374115A true GB374115A (en) | 1932-06-06 |
Family
ID=9819896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB673931A Expired GB374115A (en) | 1931-03-04 | 1931-03-04 | Improvements in condenser microphones |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB374115A (en) |
-
1931
- 1931-03-04 GB GB673931A patent/GB374115A/en not_active Expired
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