CN215647305U - Mixed sound self-adaptive adjustment output system and equipment - Google Patents

Abstract

The utility model discloses a mixed sound self-adaptive adjustment output system and a device, wherein the system comprises a first processor module, a second processor module and a control module; the control module is used for carrying out high-low level voltage conversion and controlling the first processor module to enter a sound source priority mode or a sound mixing mode; the second processor is used for adjusting the audio volume in the sound source priority mode or the sound mixing mode; the output end of the control module is connected to the input end of the first processor module, and the output end of the first processor module is connected to the input end of the second processor module; the utility model can switch the sound source priority mode or the sound mixing mode, can realize multi-channel sound mixing and single-channel playing selection under the control instruction of the control module, realizes the self-adaption of multiple channels to adjust the sound mixing proportion, can provide more reliable and stable sound source identification, and can be widely applied to the technical field of electronic circuits.

Description

Mixed sound self-adaptive adjustment output system and equipment

Technical Field

The utility model relates to the technical field of electronic circuits, in particular to a mixed sound self-adaptive adjusting output system and equipment.

Background

In the prior art, audio power amplifier equipment or a system has a function of channel switching; when channel switching is carried out, the equipment or the equipment can carry out forced switching on the currently played sound source and switch to the accessed external sound source; when the external sound source stops playing, the switched original sound source will resume automatic playing.

However, the existing audio switching method has the following disadvantages or shortcomings: the existing audio source switching mode generally only has a priority playing function of a single channel, and audio in a plurality of channels cannot be mixed and further the mixing ratio can not be adjusted.

SUMMERY OF THE UTILITY MODEL

To solve one of the above technical problems, the present invention aims to: provided are a mixed sound adaptive adjustment output system capable of mixing audio in a plurality of channels and adaptively adjusting a mixing ratio, and an apparatus mounting the same.

The technical scheme adopted by the utility model is as follows:

in a first aspect, the present invention provides a mixed sound adaptive adjustment output system, including; the system comprises a first processor module, a second processor module and a control module;

the control module is used for performing high-low level voltage conversion and controlling the first processor module to enter a sound source priority mode or a sound mixing mode;

the second processor is configured to adjust audio volume in the sound source priority mode or the sound mixing mode;

the output end of the control module is connected to the input end of the first processor module, and the output end of the first processor module is connected to the input end of the second processor module.

In some optional embodiments, the system further comprises a signal detection module, an output of the signal detection module being connected to an input of the first processor module.

In some optional embodiments, the system further comprises a comparator unit and a plurality of audio signal channels, wherein an output end of the audio signal channel is connected to an input end of the comparator unit through the signal detection module, and an output end of the comparator is connected to an input end of the first processor module; the output end of the audio signal channel is also connected to the input end of the second processor module through the signal detection module.

In some optional embodiments, the first processor module is a single chip, and the second processor module is a DSP processor.

In some optional embodiments, the single chip microcomputer is connected to the DSP processor through an I2C bus and/or an I2S bus.

In some optional embodiments, the control module is communicatively coupled to the first processor module via a 485 protocol.

In some optional embodiments, the system further comprises at least one speaker unit.

In a second aspect, the present invention provides a mixed sound adaptive adjustment output device, which includes any one of the mixed sound adaptive adjustment output systems in the first aspect.

The utility model has the beneficial effects that: according to the technical scheme, through the two processor modules, the first processor module can switch between a sound source priority mode and a sound mixing mode, and can realize multi-channel sound mixing and single-channel playing selection under the control instruction of the control module; the second processor module can adaptively adjust the mixing proportion according to the number of the current channels of the system, can realize the self-defined mixing of multiple channels, and can provide more reliable and stable sound source identification.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic block diagram of a mixed sound adaptive adjustment output system according to an embodiment of the present invention;

fig. 2 is a schematic circuit diagram of a mixed-sound adaptive adjustment output system according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length," "upper," "lower," "front," "rear," "left," "right," "top," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In a first aspect, as shown in fig. 1, the system for adaptively adjusting and outputting a mixed sound provided by the present invention includes a first processor module, a second processor module, and a control module.

The input end of the control module is connected to the upper computer through an RJ45 interface to realize communication connection, the output end of the control module is connected to the input end of the first processor module, the output end of the first processor module is connected to the input end of the second processor module, the output end of the second processor module is connected to the audio output module or device, and the audio signal subjected to volume modulation is output. In addition, the input end of the first processor module is also connected with an audio input channel for receiving audio signals.

Specifically, in the embodiment, the system can determine the on and off of the pull-up resistor through a peripheral physical switch control module, realize high-low level voltage conversion, and transmit a triggered conversion instruction signal to the first processor module, so that the first processor module enters different modes, or the first processor enters different modes through the RJ 45/485. In the embodiment shown in fig. 2, the high level signal corresponds to the sound source priority mode, i.e. the audio in a single channel is selected for output; the non-high level signal corresponds to a mixing mode, that is, the audio signals in each channel are fused and then output. The audio signals output by the first processor module under the two modes are adjusted in volume through the second processor module according to the specific control instruction; the audio signal with the volume adjusted by the second processing module is output by devices such as a loudspeaker.

As shown in fig. 2, in some possible embodiments, the system further comprises a signal detection module;

in particular, in an embodiment, a signal detection module is mounted in each audio channel, an output of the signal detection module being connected to an input of the first processor module; the method can judge the number of effective channels by identifying sound sources in channels in a sound mixing mode, and finish the self-adaptive adjustment and output of audio signals. Illustratively, each channel is equipped with a signal detection device for detecting signals, when audio signals are detected, the detection module triggers corresponding signal instructions to be transmitted to the first processor module, and the first processor module controls and adjusts the volume of the audio signals in each channel.

In some possible embodiments, the system further comprises a comparator unit and a number of audio signal channels;

each audio signal channel is provided with a signal detection module, namely the output end of the audio signal channel is connected to the input end of the comparator unit through the built-in signal detection module, the output end of the comparator is connected to the input end of the first processor module, and in addition, the output end of the audio signal channel is also connected to the input end of the second processor module through the signal detection module.

Specifically, the comparator unit is configured to select an audio signal channel to be preferentially output in the sound source priority mode, that is, receive an instruction from the first processor module, and output an audio signal in the audio signal channel; in the sound mixing mode, the comparator unit is required to participate, the first processing module determines whether audio signals exist in each channel or not, the signals for adjusting the sound mixing proportion are output to the second processing module, the second processing module directly obtains the audio signals in each audio signal channel, and the volume proportion of sound sources (audio signals) in each channel is adjusted according to the received signals for adjusting the sound mixing proportion. And finally, outputting the adjusted sound mixing signal by the second processor module. Illustratively, the embodiment system includes 3 channels, the first processor recognizes that the device corresponding to the channel is triggered, and adjusts the mixing ratio, wherein the adjusted ratio may include the following cases:

1. triggering the channel A, wherein the channel B, C has no trigger, the audio gain of the channel A is 100%, and the audio gain of the channel B, C is 0;

2. a, B channel triggered, C no trigger. 50% of A channel audio, 50% of B channel audio gain and 0% of C channel audio gain.

3. ABC channels are triggered, the audio gain of the A channel is 33%, the audio gain of the B channel is 33%, and the audio gain of the C channel is 33%.

In some possible embodiments, the first processor module is a single chip microcomputer, and the second processor module is a DSP processor. In addition, as shown in fig. 2, the MCU in the embodiment is connected to the DSP processor through an I2C bus and an I2S bus; in addition, an output pin of the comparator unit (comparator) is connected to an I/O input pin of the MCU, thereby implementing I/O control.

Specifically, the MCU properly reduces the frequency and specification of a Central Processing Unit (CPU), and integrates peripheral interfaces such as a memory (memory), a counter (Timer), a USB (universal serial bus), an A/D (analog/digital) converter, a UART (universal asynchronous receiver transmitter), a PLC (programmable logic controller), a DMA (direct memory access), and even an LCD (liquid crystal display) driving circuit on a single chip to form a chip-level computer; a DSP processor is a processor composed of large or very large scale integrated circuit chips that performs digital signal processing tasks. The I2C (Inter-Integrated Circuit) bus is a two-wire serial bus developed by PHILIPS for connecting microcontrollers and their peripherals, and is a bus standard widely used in the field of microelectronic communication control. The I2S (Inter-IC Sound) bus is a bus standard established by PHILIPS for audio data transmission between digital audio devices, and is dedicated to data transmission between audio devices, and is widely used in various multimedia systems. In the present embodiment, the I2C bus is used for transmitting data, and the I2S bus is used for transmitting audio. In a further embodiment, in the mixing mode, the signal detection module in the embodiment detects a signal, detects that an audio signal exists, the signal detection module is triggered, a trigger instruction is sent to the MCU, and the MCU controls the volume increase and decrease through I2S, and then mixes the audio signal for output.

In some possible embodiments, the control module in the system is in communication connection with the first processor module through a 485 protocol;

specifically, the system of the embodiment supports a 485 protocol, the upper computer realizes software communication with the machine through 485 according to a private protocol, and controls the MCU to enter a preset mode, a sound mixing mode and a sound source priority mode.

In some possible embodiments, the embodiment system further comprises at least one speaker unit;

specifically, as shown in fig. 2, two speakers (speakers) are connected to the LOUT pin and the ROUT pin of the DSP processor, and are used to output audio signals in the mixing mode and the sound source priority mode.

In a second aspect, the present invention further provides a mixed sound adaptive adjustment output device, which includes the mixed sound adaptive adjustment output system in the first aspect.

In summary, compared with the prior art, the utility model has the following characteristics or advantages:

1: the technical scheme of the utility model integrates a priority sound source, self-decides a sound mixing channel and self-adaptively adjusts output;

2: the technical scheme of the utility model can be realized by hardware and/or software, and is stable and reliable.

In the description herein, references to the description of "one embodiment," "another embodiment," or "certain embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (6)

1. A mixed sound self-adaptive adjustment output system is characterized by comprising a first processor module, a second processor module and a control module;

the output end of the control module is connected to the input end of the first processor module, and the output end of the first processor module is connected to the input end of the second processor module;

the system further comprises a signal detection module, wherein the output end of the signal detection module is connected to the input end of the first processor module;

the system also comprises a comparator unit and a plurality of audio signal channels, wherein the output end of each audio signal channel is connected to the input end of the comparator unit through the signal detection module; the output end of the comparator unit is connected to the input end of the first processor module; the output end of the audio signal channel is also connected to the input end of the second processor module through the signal detection module.

2. A mixed sound adaptive adjustment output system according to claim 1, wherein the first processor module is a single chip microcomputer, and the second processor module is a DSP processor.

3. A mixing sound adaptive adjustment output system according to claim 2, wherein the single chip microcomputer is connected to the DSP processor through an I2C bus and/or an I2S bus.

4. A mixed sound adaptive adjustment output system according to claim 3, wherein the control module is in communication connection with the single chip via 485 protocol.

5. A mixing sound adaptive adjustment output system according to any one of claims 1-4, characterized in that, the system further comprises at least one speaker unit.

6. A mixed-sound adaptive adjustment output device, characterized in that the device comprises a mixed-sound adaptive adjustment output system according to any one of claims 1-5.

Images