CN207603887U - Multichannel music playing system based on usb bus - Google Patents
Multichannel music playing system based on usb bus Download PDFInfo
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- CN207603887U CN207603887U CN201721538080.1U CN201721538080U CN207603887U CN 207603887 U CN207603887 U CN 207603887U CN 201721538080 U CN201721538080 U CN 201721538080U CN 207603887 U CN207603887 U CN 207603887U
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- usb bus
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Abstract
The utility model discloses a kind of multichannel music playing systems based on usb bus, including controlling host, host is controlled to connect array audio decoding apparatus and array power amplifier through usb bus, array audio decoding apparatus includes distributed multiple audio decoding apparatus, array power amplifier includes distributed multiple power amplifiers, multiple audio decoding apparatus and multiple power amplifiers correspond arrangement, form multiple freestanding audio frequency output channels, control host is used to control each audio frequency output channel synchronous or independently exports voice data stream.Array audio decoding apparatus and array power amplifier are integrated in central controlled control host in a system by usb bus, can extended audio decoding arrays, power amplifier array be facilitated according to actual use channel, and the centralized Control through controlling host, both it can realize the Synchronization Control of multiple audio frequency output channels, and can also realize the independent control of each audio frequency output channel.
Description
Technical field
The utility model is related to music player devices fields, particularly, are related to a kind of multichannel music based on usb bus
Play system.
Background technology
In audio plays application scenarios, what the prior art provided is generally put using CPU, MP3 decoding chip and power
The independent audio playback equipment (as shown in Figure 1) of big module composition or the multichannel formed using the mode that electronic switch switches
Equipment (as shown in Figure 2).For independent audio playback equipment shown in FIG. 1, it is completely independent and cannot easily expands between equipment
It transforms into multiple tracks and leads to audio frequency broadcast system；For the multi-path-apparatus shown in Fig. 2 switched through electronic switch, expansible device channels
Limited amount, realizes circuit comparatively dense and method is complicated, real-time and poor anti jamming capability；Single audio frequency apparatus can only play one
Song can not be realized while independent play-out number of songs or same song be played simultaneously；And nothing between each autonomous device
Method is shared using music sources, can not to the selected songs of each channel, play pause, volume audio is adjusted and the functions such as source of sound selection into
Row centralized management control.
Utility model content
The utility model provides a kind of multichannel music playing system based on usb bus, to solve existing use
The technical issues of multi-path-apparatus circuit of electronic switch suitching type is intensive and complicated, real-time and anti-interference are poor.
The technical solution adopted in the utility model is as follows：
A kind of multichannel music playing system based on usb bus, including being used for central controlled control host, control master
Machine connects array audio decoding apparatus and array power amplifier through usb bus, and array audio decoding apparatus includes dividing
Multiple audio decoding apparatus of cloth, array power amplifier include distributed multiple power amplifiers, multiple audio solutions
Code device and multiple power amplifiers correspond arrangement, form multiple freestanding audio frequency output channels, and control host is used for
It controls each audio frequency output channel synchronous or independently exports voice data stream.
Further, audio decoding apparatus is that the PCM2706 decoding chips of usb bus interface or PCM2902 solutions is configured
Code chip.
Further, power amplifier is dual-channel audio power amplification circuit.
Further, control host is equipped with for receiving the data-interface of audio data sources and/or for obtaining network-side
The network interface of audio data.
Further, data-interface includes：USB interface, SD card interface, TF card interface, solid hard disk interface, CD drive connect
One or more of mouthful, data-interface is through source of sound selection Acquisition Circuit connection control host.
Further, control host connects to play out control at least one audio frequency output channel through communication interface
Control panel.
Further, it controls on host or control panel and sets for source of sound, the sound to corresponding audio frequency output channel
The first adjusting unit that at least one of amount and audio are controlled.
Further, control host is equipped with frequency modulation reception module, and control panel is equipped with to carry out radio station switching
Second adjusts unit.
Further, the telephone line for sensing corresponding audio frequency output channel place room is provided on control panel
Audio frequency output channel is controlled to be placed in the mute module of phone of silent mode in telephony access.
Further, the timing module that time opening is useful on host or wakes up corresponding audio frequency output channel is controlled.
The utility model has the advantages that：
Multichannel music playing system of the utility model based on usb bus, by usb bus by array audio decoder
Device and array power amplifier are integrated in central controlled control host in a system, can be logical according to actual use
Road facilitates extended audio decoding arrays, power amplifier array, and the centralized Control through controlling host, can both realize multiple audio output
The Synchronization Control of channel can also realize the independent control of each audio frequency output channel, so as to meet family, hotel, school, doctor
The large-scale public places such as institute are to the personalized broadcasting demand for control of music.
Other than objects, features and advantages described above, the utility model also has other purposes, feature and excellent
Point.Below with reference to accompanying drawings, the utility model is described in further detail.
Description of the drawings
The attached drawing for forming the part of the application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description do not form the improper restriction to the utility model for explaining the utility model.In attached drawing
In：
Fig. 1 is the principle schematic of existing independent audio-frequence player device；
Fig. 2 is the principle schematic of the existing multi-channel audio playback equipment by electronic switch suitching type；
Fig. 3 is the principle schematic of multichannel music playing system of the preferred embodiment in the utility model based on usb bus.
Reference sign：
10th, host is controlled；20th, usb bus；30th, array audio decoding apparatus；
40th, array power amplifier；50th, audio output interface；
60th, data-interface；70th, network interface.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
With reference to Fig. 3, the preferred embodiment of the utility model provides a kind of multichannel music system based on usb bus 20
System, the present embodiment music playing system are included for central controlled control host 10, and control host 10 is connected through usb bus 20
Array audio decoding apparatus 30 and array power amplifier 40, array audio decoding apparatus 30 include distributed multiple
Audio decoding apparatus, array power amplifier 40 include distributed multiple power amplifiers, multiple audio decoding apparatus and
Multiple power amplifiers correspond arrangement, form multiple freestanding audio frequency output channels, and control host 10 is each for controlling
Audio frequency output channel is synchronous or independently exports voice data stream.
Multichannel music playing system of the present embodiment based on usb bus is filled array audio decoder by usb bus
It puts and is integrated in a system with array power amplifier and central controlled control host, it can be according to actual use channel
Facilitate extended audio decoding arrays, power amplifier array, and the centralized Control through controlling host, can both realize that multiple audio output were led to
The Synchronization Control in road can also realize the independent control of each audio frequency output channel, so as to meet family, hotel, school, hospital
Wait personalized broadcasting demand for control of the large-scale public places to music.
In the present embodiment, each unit in array audio decoding apparatus passes through interface and the expansion interface of usb bus
It is connected, each audio decoding apparatus in array audio decoding apparatus and each power amplification in array power amplifier
Device connects one to one, and the output terminal of each power amplifier connects an audio output interface 50 respectively, so as to form single sound
Frequency output channel.Each audio frequency output channel is used to the audio data sources for controlling host transmission being converted to voice data stream and pass through
Corresponding power amplifying device plays music.Preferably, each power amplifying device distribution is set to each room, and control host 10 is through each sound
Frequency output channel connects the power amplifying device for being divided into each room respectively.
In the present embodiment, control host 10 select high-performance, low-power consumption four core processor of ARM Cortex-A9 frameworks
S5P4418, CPU frequency are up to 1.4GHz, and using 32 risc instruction sets, 28nmHKMG low-power consumption technique makes, possesses powerful
Multimedia performance, system standard configuration 1GB memories, 8GB eMMC support Android 5.1.1, Linux3.4.39, QT4.8.6.
Preferably, audio decoding apparatus is the configuration PCM2706 decoding chips of 20 interface of usb bus or PCM2902 decoding chips, is propped up
Hold HIFI grades of sound quality decoding requirements.Power amplifier is dual-channel audio power amplification circuit, it is preferable that using ST meaning methods
The dual-channel audio power amplification circuit TDA7265 of company's production, makees suitable for high-grade TV and Hi-Fi tone playing equipments
Audio power amplifier.
In the present embodiment, control host 10 is equipped with for receiving the data-interface 60 of audio data sources and/or for obtaining
The network interface 70 of network-side audio data.Preferably, data-interface 60 includes：USB interface, TF card interface, is consolidated SD card interface
One or more of state hard-disk interface, CD drive interface, data-interface 60 is through source of sound selection Acquisition Circuit connection control master
Machine 10, so as to support the importing of a variety of audio data sources.It is highly preferred that control host 10 is also associated with storing audio data
Memory module, the favorite audio data in part is stored in local side, convenient for subsequent calls and broadcasting.
In the present embodiment, the network interface 70 on host 10 is controlled to connect internet, system access router through router
IP address (router needs to open DHCP) can be obtained automatically, and host can obtain network source of sound from network.Preferably, other controls
Terminal processed can also control host by network.The present embodiment controls host 10 to connect internet through network interface 70, can
To further expand the source of audio data sources, online cloud music, voice frequency program, news are provided for the present embodiment play system
A variety of audio datas such as information, AUX, FM, network radio station.
Preferably, control host 10 connects to play out control at least one audio frequency output channel through communication interface
Control panel.In the present embodiment, control panel can be the cell phone apparatus or wall embedded type using Andriod/IOS systems
Panel.Preferably, control panel can be multiple, be divided into different positions, for through host is controlled to correspond to one of setting
Either multiple audio frequency output channels synchronize or independent control so that control is more convenient and flexible.
Preferably, it controls on host 10 or control panel and sets for source of sound, the sound to corresponding audio frequency output channel
The first adjusting unit that at least one of amount and audio are controlled.Preferably, it is corresponding with audio frequency output channel by setting
Multiple first adjust units, so as to realize the independent control to each audio frequency output channel, i.e., independent selection source of sound is adjusted
The operations such as volume and audio EQ are saved, and are not interfere with each other.
Preferably, control host 10 is equipped with frequency modulation reception module, and control panel is equipped with to carry out radio station switching
Second adjusts unit, so as to fulfill the function of radio programme is played through the present embodiment music playing system.
Preferably, it is provided with to sense room where corresponding audio frequency output channel in the present embodiment, on control panel
Telephone line audio frequency output channel is controlled to be placed in the mute module of phone of silent mode in telephony access.In the present embodiment,
Control panel is divided at each room, and the mute module of phone is associated with telephone connection, to sense the electric signal of telephone connection,
Generation control instruction is carried out so that corresponding audio frequency output channel to be controlled to be in SILENT output mode.
Preferably, it is useful for time opening on the present embodiment control host 10 or wakes up determining for corresponding audio frequency output channel
When module, individually to control each audio frequency output channel automatically waking up in setting time or quarter-bell, the present embodiment timing mould
Block is designed based on timing circuit, can be generated instruction control audio frequency output channel and be waken up or export alarm signal, and each
Audio frequency output channel usually in a dormant state, to achieve the effect that save energy and the complex function with timer clock.
From above description it is known that the present embodiment music playing system provides abundant music sources and various tone sources
Selection, a variety of coordinated signals modes, several scenes pattern, and support the on-line/off-line sound of the high tone quality of each channel, lossless format
It is happy to play, and the mute module of system built-in telephony.Each independent play-out channel integrated level is high, passes through usb bus technical communication reality
Shi Gaoxiao and extension convenience can be concentrated or independently quickly control each channel audio decoding device independently play music, realize multichannel
Channel can independently play music and all Channel Synchronous broadcasting same musics of control.System Resources Sharing, sexual valence compare
Height can meet the needs of large-scale public places such as family, hotel, school, hospital are to music higher performance.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of multichannel music playing system based on usb bus, which is characterized in that including being used for central controlled control master
Machine (10), the control host (10) are put through usb bus (20) connection array audio decoding apparatus (30) and array power
Big device (40), the array audio decoding apparatus (30) include distributed multiple audio decoding apparatus, the array work(
Rate amplifier (40) includes distributed multiple power amplifiers, multiple audio decoding apparatus and multiple power amplifications
Device corresponds arrangement, forms multiple freestanding audio frequency output channels, described to control host (10) for controlling each sound
Frequency output channel is synchronous or independently exports voice data stream.
2. the multichannel music playing system according to claim 1 based on usb bus, which is characterized in that
The audio decoding apparatus is that the PCM2706 decoding chips of usb bus (20) interface or PCM2902 decoding cores is configured
Piece.
3. the multichannel music playing system according to claim 2 based on usb bus, which is characterized in that
The power amplifier is dual-channel audio power amplification circuit.
4. the multichannel music playing system according to claim 1 based on usb bus, which is characterized in that
The control host (10) is equipped with for receiving the data-interface of audio data sources (60) and/or for obtaining network-side sound
The network interface (70) of frequency evidence.
5. the multichannel music playing system according to claim 4 based on usb bus, which is characterized in that
The data-interface (60) includes：In USB interface, SD card interface, TF card interface, solid hard disk interface, CD drive interface
One or more, the data-interface (60) through source of sound selection Acquisition Circuit connection it is described control host (10).
6. the multichannel music playing system according to claim 1 based on usb bus, which is characterized in that
The control host (10) connects to play out control at least one audio frequency output channel through communication interface
Control panel.
7. the multichannel music playing system according to claim 6 based on usb bus, which is characterized in that
It is described control host (10) or the control panel on setting for corresponding audio frequency output channel source of sound, volume
And the first adjusting unit that at least one of audio is controlled.
8. the multichannel music playing system according to claim 7 based on usb bus, which is characterized in that
The control host (10) is equipped with frequency modulation reception module, the control panel be equipped with for carry out radio station switching the
Two adjust unit.
9. the multichannel music playing system according to claim 6 based on usb bus, which is characterized in that
It is provided on the control panel and is connect for sensing the telephone line in corresponding audio frequency output channel place room in phone
The mute module of phone that the fashionable control audio frequency output channel is placed in silent mode.
10. the multichannel music playing system according to claim 6 based on usb bus, which is characterized in that
Time opening is useful on the control host (10) or wakes up the timing module of the corresponding audio frequency output channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721538080.1U CN207603887U (en) | 2017-11-17 | 2017-11-17 | Multichannel music playing system based on usb bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721538080.1U CN207603887U (en) | 2017-11-17 | 2017-11-17 | Multichannel music playing system based on usb bus |
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| Publication Number | Publication Date |
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| CN207603887U true CN207603887U (en) | 2018-07-10 |
Family
ID=62759701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201721538080.1U Active CN207603887U (en) | 2017-11-17 | 2017-11-17 | Multichannel music playing system based on usb bus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111901726A (en) * | 2020-07-29 | 2020-11-06 | 广州市迪士普音响科技有限公司 | Automatic silent sound preamplifier system and control method thereof |
| CN113301494A (en) * | 2021-05-25 | 2021-08-24 | 湖北亿咖通科技有限公司 | Audio playing system, control equipment and power amplifier equipment |
| CN114879931A (en) * | 2022-07-11 | 2022-08-09 | 南京芯驰半导体科技有限公司 | Onboard audio path management method and system supporting multiple operating systems |
-
2017
- 2017-11-17 CN CN201721538080.1U patent/CN207603887U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111901726A (en) * | 2020-07-29 | 2020-11-06 | 广州市迪士普音响科技有限公司 | Automatic silent sound preamplifier system and control method thereof |
| CN113301494A (en) * | 2021-05-25 | 2021-08-24 | 湖北亿咖通科技有限公司 | Audio playing system, control equipment and power amplifier equipment |
| CN113301494B (en) * | 2021-05-25 | 2022-09-02 | 亿咖通(湖北)技术有限公司 | Audio playing system, control equipment and power amplifier equipment |
| CN114879931A (en) * | 2022-07-11 | 2022-08-09 | 南京芯驰半导体科技有限公司 | Onboard audio path management method and system supporting multiple operating systems |
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