CN2155646Y - All-numbers reverberation microphone - Google Patents
All-numbers reverberation microphone Download PDFInfo
- Publication number
- CN2155646Y CN2155646Y CN 93204558 CN93204558U CN2155646Y CN 2155646 Y CN2155646 Y CN 2155646Y CN 93204558 CN93204558 CN 93204558 CN 93204558 U CN93204558 U CN 93204558U CN 2155646 Y CN2155646 Y CN 2155646Y
- Authority
- CN
- China
- Prior art keywords
- microphone
- pin
- circuit
- reverberation
- resistance
- 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 - Fee Related
Links
Images
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model relates to an all-numbers reverberation microphone for kara-ok singing use. The utility model is made by installing a digital reverberator on a normal microphone. The digital reverberator (8) of the all-numbers reverberation microphone comprises an integrated block CI 8864, an audio signal input circuit, a delaying controlling circuit, an oscillating circuit and a coupling and feedback circuit. The microphone and the reverberation are collected to integration by the utility model, and the delaying is 800 ms. High index reverberation effect can be played by a general acoustic device having no reverberation.
Description
The utility model belongs to a kind of sound equipment microphone, is mainly used in karaoke.
The most of two kinds of circuit of MN3207, MN3102 that adopt MAT to produce of existing karaoke machine, this circuit are owing to be analogue device, so peripheral circuit complexity, power consumption are big, and time of delay is shorter, is 51.2ms.
The purpose of this utility model is to provide the digital Reverberation microphone that a kind of peripheral circuit is simple, time of delay is long and volume is little, low in energy consumption.
The purpose of this utility model is achieved in that the top of microphone is moving-coil head MIC(1), on the shell at microphone middle part mains switch (2) is arranged, but and double as reverberation time adjustment knob, on the shell at microphone middle part power supply indicator (9) is housed also, battery (7) is housed in the microphone lower case, the output line that the microphone afterbody passes (5) connects output plug (6), and digital reverberation device (8) is housed in the microphone middle housing.
Digital reverberation device (8) comprises integrated package CI8864, the audio signal input circuit, delay control circuit, oscillating circuit, coupling, feedback circuit, wherein polyphone capacitor C 4 of the microphone MIC in the audio signal input circuit and resistance R 1 are connected on the pre-amplifier input end interface pin 3 of CI8864, by capacitor C 2, coupling adjustable resistance W, the delay control circuit that resistance R 3 polyphones are formed, one end is connected on the pin 5 of CI8864, the other end is connected on the pre-amplifier pin 3 of CI8864, the pin 6 of the resistance R 4 one termination CI8864 of oscillating circuit, the pin 7 of another termination CI8864, coupling, feedback resistance R2 in the feedback circuit and capacitor C 1 also connect, and an end is connected with the pin 4 of CI8864, the pin 3 of another termination CI8864.
Compare with background technology, the utility model has following advantage:
Because the utility model has adopted the CI8864 integrated circuit, make the peripheral circuit of digital reverberation device simple, power consumption is little, rise to 800ms time of delay, and be contained in the less microphone of volume, microphone and reverberation are integrated in one, can make generally, emit the high target reverberation effect not with the stereo set of reverberation.
Below in conjunction with the embodiment accompanying drawing the utility model is described in further detail.
Fig. 1 is the structural representation of digital Reverberation microphone.
Fig. 2 is the circuit diagram of digital reverberation device.
As shown in Figure 1, moving-coil head MIC(1) is contained in the microphone top, on the shell (3) at microphone middle part mains switch (2) is arranged, power supply indicator (9) also is housed on it, microphone lower case (4) is equipped with battery (7), output line (5) is passed by the microphone afterbody and connects output plug (6), and digital reverberation device (8) is inlaid in the shell (3) at microphone middle part.CI8864 is a kind of cmos digital formula delayed audio signal processing apparatus among Fig. 2, and its 1～8 pin and other circuit connecting relation are as follows:
The audio signal input circuit; Microphone MIC polyphone capacitor C 4 and pre-amplifier input resistance R1, the pre-amplifier input end interface pin 3 of connection CI8864.
The pin 5 of delay control circuit: CI8864 is the inhibit signal output, polyphone capacitor C 2, and coupling variable resistor W, and serial resistance R3 connect the pre-amplifier pin 3 of CI8864, adjust the length that W can change the reverberation time, are used for echo and regulate.
The pin 6 series connection oscillation resistance R4 of oscillating circuit: CI8864 connect the pin 7 of CI8864.
Coupling, feedback circuit: feedback resistance R2 and capacitor C 1 also connect, and one is connected on the CI8864 pin 4, and the other end is connected on the pin 3.Can send into audio-frequency power amplifier through the signal that digital delay processing is crossed from the output of 4 pin, adjust the multiplication factor that feedback resistance R2 can change amplifier.
Pin 1 connects power supply, pin 8 ground connection.
Claims (2)
1, a kind of digital Reverberation microphone, the top of microphone is moving-coil head MIC (1), on the shell at microphone middle part mains switch (2) is arranged, but and double as reverberation time adjustment button, on the shell at microphone middle part power supply indicator (9) is housed also, battery (7) is housed in the microphone lower case, and the output line that the microphone afterbody passes (5) connects output plug (6), it is characterized in that: digital reverberation device (8) is housed in the microphone middle housing.
2, digital Reverberation microphone according to claim 1, it is characterized in that: digital reverberation device (8) comprises integrated package CI8864, the audio signal input circuit, delay control circuit, oscillating circuit, coupling, feedback circuit, wherein polyphone capacitor C 4 of the microphone MIC in the audio signal input circuit and resistance R 1 are connected on the pre-amplifier input end interface pin 3 of CI8864, by capacitor C 2, coupling adjustable resistance W, the delay control circuit that resistance R 3 polyphones are formed, one end is connected on the pin 5 of CI8864, the other end is connected on the pre-amplifier pin 3 of CI8864, the pin 6 of the resistance R 4 one termination CI8864 of oscillating circuit, the pin 7 of another termination CI8864, coupling, feedback resistance R2 in the feedback circuit and capacitor C 1 also connect, one end is connected with the pin 4 of CI8864, and the other end is connected on the pin 3 of CI8864.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93204558 CN2155646Y (en) | 1993-03-09 | 1993-03-09 | All-numbers reverberation microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93204558 CN2155646Y (en) | 1993-03-09 | 1993-03-09 | All-numbers reverberation microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2155646Y true CN2155646Y (en) | 1994-02-09 |
Family
ID=33788082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93204558 Expired - Fee Related CN2155646Y (en) | 1993-03-09 | 1993-03-09 | All-numbers reverberation microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2155646Y (en) |
-
1993
- 1993-03-09 CN CN 93204558 patent/CN2155646Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MY120369A (en) | Methods for adjusting audio signals responsive to changes in a power supply level and related communications devices. | |
| CN201328179Y (en) | Controller for vibration music-visic device | |
| CN204669590U (en) | A kind of microphone of real-time, tunable audio | |
| CN2155646Y (en) | All-numbers reverberation microphone | |
| CN110930972A (en) | Multifunctional guitar | |
| CN207502939U (en) | A kind of multi-functional alarm clock | |
| CN2717136Y (en) | Television remote controller radio wave searching apparatus | |
| CN2380267Y (en) | Swimming-training electronic instrument | |
| CN207356454U (en) | A kind of novel sounding rope skipping | |
| CN2301822Y (en) | Multifunctional sound change microphone | |
| CN206506690U (en) | A kind of vacuum tube microphone preamplifier controls circuit | |
| CN206259170U (en) | A kind of low-distortion and low-noise energy-saving type Chinese zither sound pick-up | |
| CN217982842U (en) | Audio recorder based on contact pickup | |
| CN2141630Y (en) | Reverberation karaoke microphone | |
| CN2798475Y (en) | Multifunctional microphone capable of changeable voice recording | |
| CN204131731U (en) | Swimming contest is issued an order speaker system | |
| CN2309800Y (en) | Electronic stethoscope | |
| CN2434850Y (en) | Television set | |
| CN205920325U (en) | Intelligent alarm clock | |
| CN2274855Y (en) | Microphone with special sounding effect | |
| CN2290963Y (en) | Trill megaphone | |
| CN219611956U (en) | Multifunctional Bluetooth sound box capable of accelerating playing | |
| CN217740413U (en) | USB stereo digital capacitance microphone | |
| CN207137234U (en) | A kind of length-adjustable sounding rope skipping | |
| CN216122800U (en) | Wireless microphone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |