CN205545875U - Audio frequency actuating system - Google Patents
Audio frequency actuating system Download PDFInfo
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- CN205545875U CN205545875U CN201620146968.XU CN201620146968U CN205545875U CN 205545875 U CN205545875 U CN 205545875U CN 201620146968 U CN201620146968 U CN 201620146968U CN 205545875 U CN205545875 U CN 205545875U
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Abstract
The utility model relates to an audio playback field especially relates to an audio frequency actuating system. Be applied to the sound source to the in -process of playback devices transmission acoustical signal, analog -to -digital conversion module will the sound signal conversion that the sound source produced is data signal, in order to be used for the transmission of acoustical signal, the digital analog conversion module, with analog -to -digital conversion module connects, will data signal conversion moulding plans the signal, remove the response module, respectively with playback devices analog -to -digital conversion module the digital analog conversion module is connected, the sensing playback devices's dynamic change generates the change signal, and utilize change signal conditioning analog signal, so that playback devices will adjust analog signal output.
Description
Technical field
This utility model relates to field of audio play, particularly relates to a kind of audio driven system.
Background technology
The broadcasting of current audio typically requires a drive system and is driven, it usually needs by sound source
The audio conversion of middle storage is changed to digital signal and is transmitted, and is converted on playback equipment the most again
Analogue signal plays out, but the broadcast mode of the Play System of prior art is the most single,
It may be said that its play mode is presetting pattern, it is impossible to enough along with the dynamic change of playback equipment
And change.
Utility model content
The problem existed for prior art, this utility model provides a kind of audio driven system
And method so that the acoustical signal that playback equipment is play can be along with the dynamically change of playback equipment
Change.
This utility model adopts the following technical scheme that
A kind of audio driven system, is applied to the sound source process to playback equipment transmission acoustical signal
In, described audio driven system includes:
Analog-to-digital conversion module, is converted to digital signal by the acoustical signal that described sound source produces, with
Transmission in described acoustical signal；
D/A converter module, is connected with described analog-to-digital conversion module, is changed by described digital signal
Become analogue signal；
Mobile induction module, respectively with described playback equipment, described analog-to-digital conversion module, described
D/A converter module connects, and senses the dynamic change of described playback equipment, generates variable signal,
And utilize described variable signal to regulate described analogue signal, so that described playback equipment will regulation
Described analog signal output.
Preferably, described playback equipment includes L channel unit and R channel unit.
Preferably, described variable signal includes change in gain signal and/or time delay variable signal.
Preferably, described time delay variable signal △ T=D/V*sin θ；
Wherein, θ be the line between described sound source and described L channel unit and described sound source with
The angle of the line between described R channel unit；D is described L channel unit and described right sound
Distance between road unit, V is the speed that described playback equipment dynamically changes.
Preferably, described change in gain signal △ L=20*log (r1/r2)；
Wherein, r1 is the distance between described sound source and described L channel unit；R2 is described
Distance between sound source and described R channel unit.
Preferably, the gain of described R channel unit is that the gain of described L channel unit is with described
The superposition of change in gain signal；
The reproduction time of described R channel unit is reproduction time and the institute of described L channel unit
State the superposition of time delay variable signal.
Preferably, described playback equipment is headset equipment.
A kind of audio driven method, described audio driven method includes:
The acoustical signal that sound source produces is converted to digital signal, by described digital data transmission；
After described digital signal is converted into analogue signal, by a playback equipment output；
One moves induction module senses the dynamic change of described playback equipment, generates variable signal,
The analogue signal of described playback equipment output is regulated according to described variable signal.
Preferably, described playback equipment includes L channel unit and R channel unit, described dynamically
Variable signal includes change in gain signal and time delay variable signal；And
The gain of described R channel unit is that the gain of described L channel unit becomes with described gain
Change the superposition of signal；
The reproduction time of described R channel unit is reproduction time and the institute of described L channel unit
State the superposition of time delay variable signal.
Preferably, described playback equipment is headset equipment.
The beneficial effects of the utility model are:
This utility model moves induction module, moving of real-time sensing playback equipment by setting up one
State changes, when playback equipment is moved or mobile but direction biases, and mobile sense
Answer unit can the parameter of sensing movement in real time, produce a variable signal, and utilize this change
Change signal imitation playback equipment L channel unit and the acoustical signal of R channel unit output, produce one
Stereosonic sound effect, it is possible to preferably increase the experience sense of user.
Accompanying drawing explanation
The detailed description with reference to the following drawings, non-limiting example made by reading, this reality
Will become more apparent by novel and feature, profile and advantage.In whole accompanying drawings identical
The labelling identical part of instruction.Can not be drawn to scale accompanying drawing, it is preferred that emphasis is illustrate
Purport of the present utility model.
Fig. 1 is the structural representation of this utility model a kind of audio driven system；
Fig. 2 is the flow chart of this utility model a kind of audio driven method.
Detailed description of the invention
With specific embodiment, this utility model is further described below in conjunction with the accompanying drawings, but
It is not as restriction of the present utility model.
Embodiment one
The present embodiment provides a kind of audio driven system, as it is shown in figure 1, this audio driven system
Including analog-to-digital conversion module, D/A converter module, mobile induction module, this audio driven system
Can apply to a sound source and transmit the process of acoustical signal to the playback equipment of a wear-type, need
Bright, sound source can be the audio frequency of storage in computer, computer transmit to playback equipment,
Can also be the equipment such as mobile phone, the playback equipment of wear-type can be headband receiver etc., and sound is believed
Number i.e. audio file.
Why need analog-to-digital conversion module and D/A converter module, the audio frequency being because in sound source
File is probably analogue signal, and sound source needs the form with digital signal to pass to playback equipment
Defeated, again digital signal is reduced into analogue signal in playback equipment one end afterwards, by playback equipment
Play back.
Further, the present embodiment also includes moving induction module, and this moves induction module and divides
It is not connected with described playback equipment, described analog-to-digital conversion module, described D/A converter module, sense
Survey the dynamic change of described playback equipment, generate variable signal, and utilize described variable signal
Regulate described analogue signal, so that described playback equipment is by the described analog signal output of regulation.
In the present embodiment, the dynamic change of playback equipment is now exemplified below, and such as one user puts on
Wear-type playback equipment, can be headband receiver, and the shaking the head of this user, putting first-class action can
To see dynamic magically change as, additionally, the displacement that this user occurs can also regard dynamically change as.
Additionally, the headband receiver in the present embodiment is with L channel unit (L channel) and right sound
The stereo formula earphone of road unit (R channel).
Embodiment two
The present embodiment provides a kind of audio driven method, as in figure 2 it is shown, the method includes:
The acoustical signal that sound source produces is converted to digital signal, by described digital data transmission；
After described digital signal is converted into analogue signal, by a playback equipment output；
One moves induction module senses the dynamic change of described playback equipment, generates variable signal,
The analogue signal of described playback equipment output is regulated according to described variable signal.
Now enumerate a real scene system and method for the present utility model is described in detail.
In Fig. 1, r1 is the distance between sound source and L channel unit；R2 is sound source and right sound
Distance between road unit, θ is the line between described sound source and described L channel unit and institute
State the angle of line between sound source and described R channel unit；D be described L channel unit with
Distance between described R channel unit, V is the speed that described playback equipment dynamically changes.
This scene is intended to build virtual reality (Virtual reality, VR) stereosonic sound
Effect, user's headphone, when this user be subjected to displacement or shake the head etc. change time, right
Can there is a change in gain signal relative to L channel in sound channel, or L channel is relative to R channel
A change in gain signal can be there is；In like manner, R channel can also exist relative to L channel and prolongs
Time variable signal, or can there is a time delay variable signal relative to R channel in L channel, it may be assumed that
The gain L2 of described R channel unit is the gain L1 of described L channel unit and described gain
The superposition of variable signal △ L；The reproduction time T2 of described R channel unit is described L channel
The reproduction time T1 of unit and superposing of described time delay variable signal △ T；Or, a described left side
The gain L1 of sound channel unit is that the gain L2 of described R channel unit believes with described change in gain
The superposition of number △ L；The reproduction time T1 of described L channel unit is described R channel unit
Reproduction time T2 superposes with described time delay variable signal △ T's, i.e. there is following equation:
L1=L2+ △ L, T1=T2+ △ T；
Or, L2=L1+ △ L, T2=T1+ △ T；
Wherein, △ T=D/V*sin θ；△ L=20*log (r1/r2).
Further, the change in gain signal △ L in the present embodiment can also be with the frequency of acoustical signal
Rate is correlated with, i.e. high frequency sound signal is different from the change in gain signal of low-frequency acoustic signal.Such as,
The more relatively high acoustical signal of frequency can be less to the regulation of gain, otherwise lower to frequency
Acoustical signal can be larger to the regulation of gain because high frequency sound signal is relative to low frequency
The amplitude of variation of acoustical signal gain may be bigger.
In sum, this utility model moves induction module by setting up one, and real-time sensing is broadcast
Put the dynamic change of equipment, when playback equipment is moved or mobile still direction biasing
Time, mobile sensing unit can the parameter of sensing movement in real time, produce a variable signal, and
Utilize this variable signal simulation playback equipment L channel unit and the sound of R channel unit output
Signal, produces a stereosonic sound effect, it is possible to preferably increase the experience sense of user.
Above preferred embodiment of the present utility model is described.It is to be appreciated that this
Utility model is not limited to above-mentioned particular implementation, the equipment that do not describes in detail the most to the greatest extent and
Structure is construed as being practiced with the common mode in this area；Any it is familiar with this area
Technical staff, without departing under technical solutions of the utility model ambit, may utilize above-mentioned
Technical solutions of the utility model are made many possible variations by the method disclosed and technology contents
And modification, or it being revised as the Equivalent embodiments of equivalent variations, this has no effect on of the present utility model
Flesh and blood.Therefore, every content without departing from technical solutions of the utility model, according to this reality
And repair any simple modification made for any of the above embodiments, equivalent variations by novel technical spirit
Decorations, all still fall within the range of technical solutions of the utility model protection.
Claims (7)
1. an audio driven system, it is characterised in that be applied to sound source and transmit to playback equipment
During acoustical signal, described audio driven system includes:
Analog-to-digital conversion module, is converted to digital signal by the acoustical signal that described sound source produces, with
Transmission in described acoustical signal；
D/A converter module, is connected with described analog-to-digital conversion module, is changed by described digital signal
Become analogue signal；
Mobile induction module, respectively with described playback equipment, described analog-to-digital conversion module, described
D/A converter module connects, and senses the dynamic change of described playback equipment, generates variable signal,
And utilize described variable signal to regulate described analogue signal, so that described playback equipment will regulation
Described analog signal output.
Audio driven system the most according to claim 1, it is characterised in that described broadcasting
Equipment includes L channel unit and R channel unit.
Audio driven system the most according to claim 2, it is characterised in that described change
Signal includes change in gain signal and/or time delay variable signal.
Audio driven system the most according to claim 3, it is characterised in that described time delay
Variable signal △ T=D/V*sin θ；
Wherein, θ be the line between described sound source and described L channel unit and described sound source with
The angle of the line between described R channel unit；D is described L channel unit and described right sound
Distance between road unit, V is the speed that described playback equipment dynamically changes.
Audio driven system the most according to claim 3, it is characterised in that described gain
Variable signal △ L=20*log (r1/r2)；
Wherein, r1 is the distance between described sound source and described L channel unit；R2 is described sound
Distance between source and described R channel unit.
Audio driven system the most according to claim 3, it is characterised in that
The gain of described R channel unit is the gain of described L channel unit and described change in gain
The superposition of signal；
The reproduction time of described R channel unit is that the reproduction time of described L channel unit is with described
The superposition of time delay variable signal.
Audio driven system the most according to claim 1, it is characterised in that described broadcasting
Equipment is headset equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620146968.XU CN205545875U (en) | 2016-02-26 | 2016-02-26 | Audio frequency actuating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620146968.XU CN205545875U (en) | 2016-02-26 | 2016-02-26 | Audio frequency actuating system |
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| Publication Number | Publication Date |
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| CN205545875U true CN205545875U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620146968.XU Active CN205545875U (en) | 2016-02-26 | 2016-02-26 | Audio frequency actuating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792070A (en) * | 2016-02-26 | 2016-07-20 | 钰太芯微电子科技（上海）有限公司 | Audio driving system and method |
-
2016
- 2016-02-26 CN CN201620146968.XU patent/CN205545875U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792070A (en) * | 2016-02-26 | 2016-07-20 | 钰太芯微电子科技（上海）有限公司 | Audio driving system and method |
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