CN218416645U

CN218416645U - Multi-functional preceding stage effector

Info

Publication number: CN218416645U
Application number: CN202122971182.5U
Authority: CN
Inventors: 唐晓明; 徐乐; 杨春香; 麦瑞朋
Original assignee: Foshan Huiming Electronic Technology Co ltd
Current assignee: Foshan Huiming Electronic Technology Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2023-01-31
Anticipated expiration: 2031-11-30

Abstract

A multifunctional preceding stage effector comprises a mixer, a microphone audio input module, a music audio input module, two main audio output modules, two surrounding audio output modules, a middle audio output module and a low audio output module; the microphone audio input module comprises a howling suppressor, a microphone 15-section parametric equalizer, a microphone tone modifier and two 3-section equalization high-low pass filters; the music audio input module comprises a music 10-segment parametric equalizer and a music tone changer; the power amplifier equipment has better stereo effect through the two main audio output modules, the two surrounding audio output modules, the middle audio output module and the low audio output module; through mixer, microphone audio input module and music audio input module for the power amplifier has possessed multiple functions such as video broadcast, singing K and listening music, and, makes the power amplifier when guaranteeing microphone sound tone quality, has richened the audio frequency regulation change of power amplifier.

Description

Multi-functional preceding stage effector

Technical Field

The utility model belongs to the technical field of the technique of audio power amplifier equipment and specifically relates to a multi-functional preceding stage effector is related to.

Background

The performance of the power amplifier is embodied in the adjustment of stereo effect and various audio frequencies, and along with the development of the sound industry, meeting places, cinemas or singing have increasingly greater requirements on the multifunction of the power amplifier, and the requirements on the audio frequency adjusting function are also increasingly higher. At present, most power amplifier devices only have the function of music audio frequency adjustment processing, microphone sound cannot be adjusted, and additional combined devices are needed to adjust the microphone sound, so that the occupied space is large; in addition, a few power amplifiers having a microphone sound adjustment function do not process audio signals in place, have little change in audio adjustment, are susceptible to electromagnetic interference, and can generate sound breakdowns.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art, the utility model aims to provide a multi-functional preceding stage effect ware.

In order to achieve the above object, the utility model provides a multifunctional preceding stage effect device, which comprises a mixer, a microphone audio input module and a music audio input module;

the microphone audio input module comprises a microphone signal input channel, a microphone level detector, a noise frequency gate, a howling suppressor, a microphone volume controller, a microphone 15-section parametric equalizer, a microphone frequency divider, a microphone gain controller, a microphone compressor, a microphone tone modifier, an effect total volume controller and two 3-section balanced high-low pass filters, wherein the microphone signal input channel, the microphone level detector, the noise frequency gate, the howling suppressor, the microphone volume controller, the microphone 15-section parametric equalizer, the microphone frequency divider, the microphone gain controller, the microphone compressor and the microphone tone modifier are sequentially connected in series, and the microphone tone modifier is also connected with a frequency mixer and the effect total volume controller respectively; the two 3-segment equalizing high-low pass filters are connected to the total effect volume controller in parallel, and the two 3-segment equalizing high-low pass filters are also respectively connected to the frequency mixer;

the music audio input module comprises an audio signal selector, a music level detector, a music volume controller, a music 10-section parametric equalizer, a music frequency divider, a music gain controller, a music compressor and a music pitch changer which are connected in sequence, and the music pitch changer is also connected with the mixer;

the device also comprises two main audio output modules, two surrounding audio output modules, a middle audio output module and a low audio output module, wherein each main audio output module comprises a main tone 5-section balanced high-low pass filter, a main tone gain controller, a main tone amplitude limiting controller, a main tone mute controller and a main tone output channel which are connected in sequence; each surround audio output module comprises a surround sound 5-section equalization high-low pass filter, a surround sound gain controller, a surround sound mute controller and a surround sound output channel which are connected in sequence; the middle audio output module comprises a middle 5-section balanced high-low pass filter, a middle gain controller, a middle mute controller and a middle output channel which are connected in sequence; the low-frequency output module comprises a low-frequency 5-section parameter equalizer, a low-frequency divider, a low-frequency gain controller, a low-frequency mute controller and a low-frequency output channel.

Further, the two 3-segment equalizing high-low pass filters respectively output ECHO and Reverb sound effects to the mixer.

Further, the audio signal selector is provided with five input interfaces of VOD, DVD, AUX, BLT and USB.

Further, the USB input interface can be connected to a PC device through a USB data line.

The beneficial effects of the utility model are that: the power amplifier equipment has better stereo effect through the two main audio output modules, the two surrounding audio output modules, the middle audio output module and the low audio output module; through mixer, microphone audio input module and music audio input module for the power amplifier has possessed multiple functions such as video broadcast, singing K and listening music, and, makes the power amplifier when guaranteeing microphone sound tone quality, has richened the audio frequency regulation change of power amplifier.

Drawings

Fig. 1 is a schematic diagram of a power amplifier device.

Wherein, the 1-microphone audio input module, the 2-music audio input module, the 3-mixer, the 4-main audio output module, 5-surround audio output module, 6-center audio output module and 7-low audio output module.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are illustrated in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1, in the present embodiment, a multifunctional pre-stage effector includes a mixer 3, a microphone audio input module 1, a music audio input module 2, two main audio output modules 4, two surround audio output modules 5, a center audio output module 6, and a bass output module 7.

In this embodiment, the microphone audio input module 1 includes a microphone signal input channel, a microphone level detector, a noise frequency gate, a howling suppressor, a microphone volume controller, a microphone 15-segment parametric equalizer, a microphone frequency divider, a microphone gain controller, a microphone compressor, a microphone tone adjuster, an effect total volume controller and two 3-segment balanced high-low pass filters, wherein the microphone signal input channel, the microphone level detector, the noise frequency gate, the howling suppressor, the microphone volume controller, the microphone 15-segment parametric equalizer, the microphone frequency divider, the microphone gain controller, the microphone compressor and the microphone tone adjuster are sequentially connected in series, and the microphone tone adjuster is further connected with the mixer 3 and the effect total volume controller respectively. Two 3-segment equalizing high-low pass filters are connected in parallel to the total effect volume controller, and the two 3-segment equalizing high-low pass filters are also connected to the mixer 3, respectively. In the microphone audio input module 1, the microphone sound is sent to the microphone level detector from the microphone signal input channel, then the microphone sound is processed by the microphone level detector, the noise frequency gate, the howling suppressor, the microphone volume controller, the 15-stage parametric equalizer of the microphone, the microphone frequency divider, the microphone gain controller, the microphone compressor and the microphone tone changer and then divided into two paths, one path is to output the microphone direct sound to the mixer 3 through the tone changer, the other path is to output the effect total volume controller and the two 3-stage equalization high-low pass filters through the tone changer, and the two 3-stage equalization high-low pass filters respectively output ECHO and Reverb sound to the mixer 3, wherein ECHO is reverberation, and Reverb is ECHO. In the microphone audio input module 1, a howling suppressor is arranged in front of a microphone 15-section parametric equalizer, so that sound breaking is effectively prevented.

In the present embodiment, the music audio input block 2 includes an audio signal selector, a music level detector, a music volume controller, a music 10-segment parametric equalizer, a music frequency divider, a music gain controller, a music compressor, and a music pitch tuner, which are connected in this order, and the music pitch tuner is also connected to the mixer 3. Furthermore, the audio signal selector is provided with a VOD input interface, a DVD input interface, an AUX input interface, a BLT input interface and a USB input interface, wherein the USB input interface can be connected to the PC equipment through a USB data line, so that the power amplifier equipment can be controlled conveniently and quickly. In the embodiment, the control of the power amplifier device by the PC device belongs to the conventional technology. One of a VOD input interface, a DVD input interface, an AUX input interface, a BLT input interface and a USB input interface is selected as a music source through an audio signal selector, and the selected music source is processed by a music level detector, a music volume controller, a music 10-segment parametric equalizer, a music frequency divider, a music gain controller, a music compressor and a music pitch changer in sequence and then outputs stereo music to the mixer 3. The music tone modifier is arranged on the music audio input module 2, so that the positive and negative 7-level high-fidelity lifting tone modification of stereo music is realized.

In this embodiment, the mixer 3 mixes the received direct microphone sound, echo, reverberation, and stereo music and outputs the mixed sound to the main audio output module 4, the surround audio output module 5, the center audio output module 6, and the low audio output module 7. Each main audio output module 4 comprises a main audio 5-section balanced high-low pass filter, a main audio gain controller, a main audio amplitude limiting controller, a main audio mute controller and a main audio output channel which are connected in sequence, wherein audio subjected to frequency mixing processing is processed by the main audio 5-section balanced high-low pass filter, the main audio gain controller, the main audio amplitude limiting controller and the main audio mute controller in sequence and then is output to a pre-connected main sound box through the main audio output channel; according to different positions, the two main sound boxes are divided into a main left sound box and a main right sound box.

In this embodiment, each surround audio output module 5 includes a ring tone 5-segment equalization high-low pass filter, a ring tone gain controller, a ring tone mute controller and a ring tone output channel, which are connected in sequence, wherein the audio after the frequency mixing processing is processed by the ring tone 5-segment equalization high-low pass filter, the ring tone gain controller and the ring tone mute controller in sequence, and then the audio is output to a pre-connected ring tone sound box through the ring tone output channel; according to different positions, the two ring sound boxes are divided into a ring sound left sound box and a ring sound right sound box.

In this embodiment, the mid-set audio output module 6 includes a mid-set 5-segment equalizing high-low pass filter, a mid-set gain controller, a mid-set mute controller, and a mid-set output channel, which are connected in sequence, where after the audio subjected to the frequency mixing processing is processed by the mid-set 5-segment equalizing high-low pass filter, the mid-set gain controller, and the mid-set mute controller in sequence, the audio is output to a pre-connected mid-set loudspeaker box through the mid-set output channel.

In this embodiment, the bass output module 7 includes a bass 5-stage parameter equalizer, a bass frequency divider, a bass gain controller, a bass mute controller and a bass output channel, wherein the audio after the frequency mixing processing is processed by the bass 5-stage parameter equalizer, the bass frequency divider, the bass gain controller and the bass mute controller in sequence, and is output to a pre-connected bass loudspeaker box through the bass output channel. In the bass output module 7, a good bass effect is ensured by a bass frequency divider and a bass gain controller.

In the embodiment, the two main audio output modules 4, the two surround audio output modules 5, the center audio output module 6 and the low audio output module 7 are used for outputting audio from seven directions respectively, so that the audio omnidirectional stereo effect is realized; in addition, the three-dimensional sound effect is realized, the bass effect is guaranteed, the audio output by the power amplifier is layered, and meanwhile, the occupation of the elements on the space in the power amplifier can be reduced.

In this embodiment, each module and each element can be implemented by designing and building a device circuit and a link circuit in a period supplied by an existing manufacturer, and each module and a signal link thereof can be built according to different periods to meet different application requirements, so that a person skilled in the art can select and use the modules and the signal links in a matched manner as required.

The above-described embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention in any way. Those skilled in the art can make many changes, modifications, and equivalents of the embodiments of the invention without departing from the scope of the invention. Therefore, the content of the technical scheme of the utility model, according to the equivalent change made by the idea of the utility model, should be covered in the protection scope of the utility model.

Claims

1. The utility model provides a multi-functional preceding stage effect ware, including mixer (3), microphone audio input module (1) and tone audio input module (2), its characterized in that:

the microphone audio input module (1) comprises a microphone signal input channel, a microphone level detector, a noise frequency gate, a howling suppressor, a microphone volume controller, a microphone 15-section parametric equalizer, a microphone frequency divider, a microphone gain controller, a microphone compressor, a microphone tone changer, an effect total volume controller and two 3-section balanced high-low pass filters, wherein the microphone signal input channel, the microphone level detector, the noise frequency gate, the howling suppressor, the microphone volume controller, the microphone 15-section parametric equalizer, the microphone frequency divider, the microphone gain controller, the microphone compressor and the microphone tone changer are sequentially connected in series, and the microphone tone changer is also respectively connected with the frequency mixer (3) and the effect total volume controller; the two 3-segment equalizing high-low pass filters are connected to the total effect volume controller in parallel, and the two 3-segment equalizing high-low pass filters are also respectively connected to the frequency mixer (3);

the music audio input module (2) comprises an audio signal selector, a music level detector, a music volume controller, a music 10-section parametric equalizer, a music frequency divider, a music gain controller, a music compressor and a music pitch changer which are sequentially connected, and the music pitch changer is also connected with the mixer (3);

the digital audio signal processing device is characterized by further comprising two main audio output modules (4), two surrounding audio output modules (5), a middle audio output module (6) and a low audio output module (7), wherein each main audio output module (4) comprises a main audio 5-section equalization high-low pass filter, a main audio gain controller, a main audio amplitude limiting controller, a main audio mute controller and a main audio output channel which are sequentially connected; each surround audio output module (5) comprises a surround sound 5-section equalization high-low pass filter, a surround sound gain controller, a surround sound mute controller and a surround sound output channel which are connected in sequence; the middle audio output module (6) comprises a middle 5-section balanced high-low pass filter, a middle gain controller, a middle mute controller and a middle output channel which are connected in sequence; the bass frequency output module (7) comprises a bass 5-section parameter equalizer, a bass frequency divider, a bass gain controller, a bass mute controller and a bass output channel.

2. The multi-functional pre-stage effector as claimed in claim 1, wherein: the two 3-section equalizing high-low pass filters output ECHO and Reverb sound effects to the mixer (3) respectively.

3. The multi-functional pre-stage effector as recited in claim 1, further comprising: the audio signal selector is provided with five input interfaces of VOD, DVD, AUX, BLT and USB.

4. The multi-functional pre-stage effector as claimed in claim 3, wherein: the USB input interface can be connected to the PC equipment through a USB data line.