CN213938305U - Audio matrix host - Google Patents
Audio matrix host Download PDFInfo
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- CN213938305U CN213938305U CN202023276658.5U CN202023276658U CN213938305U CN 213938305 U CN213938305 U CN 213938305U CN 202023276658 U CN202023276658 U CN 202023276658U CN 213938305 U CN213938305 U CN 213938305U
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Abstract
The utility model relates to an audio matrix host, including the host computer, be equipped with the signal conversion unit that is used for connecting each audio input matrix interface in the host computer, signal conversion unit electric connection has audio matrix module and ethernet switch, audio matrix module is connected with output channel through digital analog converter and audio output matrix interface, output channel is connected with at least one first speaker through first power amplifier; the ethernet switch is connected with at least a set of audio playback unit, arbitrary group the audio playback unit is including audio codec, audio codec passes through the second power amplifier and connects the second speaker, and this application adopts audio matrix and ethernet to combine together, has two kinds of audio transmission modes of wired transmission and LAN transmission, both can satisfy closely audio playback demand, also can satisfy remote audio playback needs, has improved audio transmission's suitability greatly, can reach the effect of real-time conveying.
Description
Technical Field
The utility model relates to an audio host computer technical field, in particular to audio matrix host computer.
Background
The audio matrix host can switch the signal source from any input channel to any output channel, and an M multiplied by N matrix is as follows: the device can simultaneously support M-channel signal input and N-channel signal output, and can play a plurality of audios synchronously or asynchronously, so that the device is desirable, convenient and cost-saving. The traditional audio matrix host comprises a plurality of audio input matrix interfaces and audio output matrix interfaces, wherein the audio input matrix interfaces are usually paired behind the audio matrix host, the audio output matrix interfaces are usually arranged in front of the audio matrix host, the audio input matrix interfaces and the audio output matrix interfaces are usually connected by adopting RCA (commonly called lotus head), and when the audio matrix host is used, only a standard audio cable with the lotus head needs to be connected with the corresponding interfaces.
However, when audio is required to be played remotely, the conventional audio matrix host needs to be connected with a plurality of standard audio cables through a plurality of audio output matrix interfaces to complete output, and the standard audio cables have limited length and are very inconvenient for long-distance signal transmission and playing due to the limit influence of the wiring length, so that the applicability is not high.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides an audio matrix host computer can realize wired transmission broadcast and wireless transmission broadcast, and the suitability is high.
The utility model adopts the technical scheme that the audio matrix host comprises a host, wherein a signal conversion unit for connecting each audio input matrix interface is arranged in the host, the signal conversion unit is electrically connected with an audio matrix module and an Ethernet switch, the audio matrix module is connected with an output channel through a digital-to-analog converter and an audio output matrix interface, and the output channel is connected with at least one first loudspeaker through a first power amplifier; the Ethernet switch is connected with at least one group of audio playing units, any group of audio playing units comprises an audio codec, and the audio codec is connected with a second loudspeaker through a second power amplifier.
Preferably, the audio matrix module employs a 16 × 8 matrix.
Preferably, the signal conversion unit comprises an a/D conversion module, and converts a digital signal into an analog signal and transmits the analog signal to the audio matrix module.
Preferably, the signal conversion unit converts the digital signal into an analog signal and converts the audio data into a data format conforming to network transmission, transmits the data format to a designated audio playing unit through an ethernet switch, extracts the received audio digital signal after the audio playing unit completes decoding, and converts the audio digital signal into an audio signal through D/a.
Preferably, the audio matrix module is connected with a plurality of output channels, and any one of the output channels is provided with the first power amplifier, and the first power amplifier is connected with at least two first loudspeakers.
The utility model has the advantages that:
the utility model provides an audio matrix host computer adopts audio matrix and ethernet to combine together, has two kinds of audio transmission modes, one kind is that the audio frequency analog signal who inputs to audio matrix host computer is converted into digital signal through the signal conversion unit, and the passageway of audio transmission is selected to rethread serial ports control audio matrix module to send digital signal to appointed digital analog converter port and carry out signal conversion, export to corresponding output channel and carry out audio playback; the other is that the audio analog signal input to the audio matrix host is digitized through the signal conversion unit and the digital signal is converted into a digital format conforming to network transmission, and the digital format is transmitted to the appointed audio playing unit through the Ethernet switch, and the audio playing unit decodes the digital signal into a corresponding audio signal for playing.
Drawings
Fig. 1 is a schematic connection diagram of the audio matrix host of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the utility model provides an audio matrix host, including host computer 1, be equipped with the signal conversion unit 11 that is used for connecting each audio input matrix interface in the host computer 1, signal conversion unit 11 electric connection has audio matrix module 12 and ethernet switch 7, audio matrix module 12 is connected with output channel through digital analog converter 13 and audio output matrix interface, output channel is connected with at least one first speaker 3 through first power amplifier 2; the Ethernet switch 7 is connected with at least one group of audio playing units, any group of audio playing units comprises an audio codec 4, and the audio codec 4 is connected with a second loudspeaker 6 through a second power amplifier 5.
In more detail, in this embodiment, the audio matrix module 12 adopts an FPGA integrated circuit board, and a 16 × 8 matrix is adopted on the audio matrix module 12, so as to form an audio signal transmission module with 16-channel input and 8-channel output. The signal conversion unit 11 includes an a/D conversion module, and the signal conversion unit 11 converts a digital signal into an analog signal and transmits the analog signal to the audio matrix module 12.
The signal conversion unit 11 can select CobraNet equipment, the signal conversion unit 11 converts digital signals into analog signals and converts audio data into a data format conforming to network transmission, the data format is transmitted to a specified audio playing unit through the Ethernet switch 7, and the audio playing unit extracts received audio digital signals after decoding is completed through the audio codec 4 and converts the audio digital signals into audio signals through D/A.
More in detail, in this embodiment, audio matrix module 12 is connected with 8 output channel, arbitrary all be equipped with on the output channel first power amplifier 2, through first power amplifier 2 is connected with and is no less than two first speakers 3, the quantity of first speaker 3 can be set for according to needs such as broadcast volume of voice, position.
The working principle is as follows:
wired transmission: an input channel is formed by connecting a standard audio cable to an audio input matrix interface, an output channel is formed by connecting the standard audio cable to an audio output matrix interface, an audio analog signal is input to the audio input matrix interface, the audio analog signal is converted into a digital signal through a signal conversion unit, the audio matrix module is controlled by a serial port to select an audio transmission channel, and the digital signal is sent to a specified digital-to-analog converter port for signal conversion and then output to a corresponding output channel for audio playing;
wireless transmission: an input channel is formed by connecting a standard audio cable to an audio input matrix interface, an audio analog signal is input to the audio input matrix interface, the audio analog signal is digitized through a signal conversion unit and is converted into a digital format which accords with network transmission, the digital format is transmitted to a specified audio playing unit through an Ethernet switch, and the audio playing unit decodes the digital signal into a corresponding audio signal to play.
The utility model provides an audio matrix host computer adopts audio matrix and ethernet to combine together, has two kinds of audio transmission modes, and two kinds of transmission methods have contained wire transmission and LAN transmission, both can satisfy closely audio playback demand, also can satisfy remote audio playback needs, have improved audio transmission's suitability greatly, can reach the effect of real-time conveying.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (5)
1. An audio matrix host is characterized by comprising a host (1), wherein a signal conversion unit (11) used for connecting each audio input matrix interface is arranged in the host (1), the signal conversion unit (11) is electrically connected with an audio matrix module (12) and an Ethernet switch (7), the audio matrix module (12) is connected with an output channel through a digital-to-analog converter (13) and an audio output matrix interface, and the output channel is connected with at least one first loudspeaker (3) through a first power amplifier (2); the Ethernet switch (7) is connected with at least one group of audio playing units, any group of audio playing units comprises an audio codec (4), and the audio codec (4) is connected with a second loudspeaker (6) through a second power amplifier (5).
2. An audio matrix host according to claim 1, wherein: the audio matrix module (12) employs a 16 x 8 matrix.
3. An audio matrix host according to claim 1, wherein: the signal conversion unit (11) comprises an A/D conversion module, and the signal conversion unit (11) converts a digital signal into an analog signal and transmits the analog signal to the audio matrix module (12).
4. An audio matrix host according to claim 3, wherein: the signal conversion unit (11) converts digital signals into analog signals, converts audio data into a data format conforming to network transmission, transmits the data format to a designated audio playing unit through an Ethernet switch (7), extracts received audio digital signals after decoding is completed through the audio codec (4), and converts the audio digital signals into audio signals through D/A.
5. An audio matrix host according to claim 1, wherein: the audio matrix module (12) is connected with a plurality of output channels, and any one of the output channels is provided with the first power amplifier (2), and at least two first loudspeakers are connected through the first power amplifier (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023276658.5U CN213938305U (en) | 2020-12-30 | 2020-12-30 | Audio matrix host |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023276658.5U CN213938305U (en) | 2020-12-30 | 2020-12-30 | Audio matrix host |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213938305U true CN213938305U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023276658.5U Active CN213938305U (en) | 2020-12-30 | 2020-12-30 | Audio matrix host |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213938305U (en) |
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2020
- 2020-12-30 CN CN202023276658.5U patent/CN213938305U/en active Active
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