RU94037385A - Microphone amplification system - Google Patents
Microphone amplification systemInfo
- Publication number
- RU94037385A RU94037385A RU94037385/28A RU94037385A RU94037385A RU 94037385 A RU94037385 A RU 94037385A RU 94037385/28 A RU94037385/28 A RU 94037385/28A RU 94037385 A RU94037385 A RU 94037385A RU 94037385 A RU94037385 A RU 94037385A
- Authority
- RU
- Russia
- Prior art keywords
- signals
- microphones
- differential amplifier
- microphone
- amplification
- Prior art date
Links
Abstract
FIELD: acoustics, amplification of signals of sound frequencies and acoustic signals. SUBSTANCE: while microphone amplification system operates its microphones receive background signals having same level in similar manner. Two approximately identical signals go from both microphones to inputs of differential amplifier and differential amplifier subtracts them mutually. Since specified signals are almost equal signal of back-ground sounds is practically not available across output of amplifier. Voice when microphones are used acts on them in greater degree as holes and microphones are close to mouth of speaker which leads to disbalance of differential amplifier. EFFECT: improved degree of amplification.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94037385/28A RU94037385A (en) | 1994-09-26 | 1994-09-26 | Microphone amplification system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94037385/28A RU94037385A (en) | 1994-09-26 | 1994-09-26 | Microphone amplification system |
Publications (1)
Publication Number | Publication Date |
---|---|
RU94037385A true RU94037385A (en) | 1997-05-27 |
Family
ID=48432598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU94037385/28A RU94037385A (en) | 1994-09-26 | 1994-09-26 | Microphone amplification system |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU94037385A (en) |
-
1994
- 1994-09-26 RU RU94037385/28A patent/RU94037385A/en unknown
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