CN113163302B - True wireless multi-sound channel loudspeaking device and multi-sound source sounding method thereof - Google Patents
True wireless multi-sound channel loudspeaking device and multi-sound source sounding method thereof Download PDFInfo
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Abstract
The invention discloses a true wireless multi-sound channel loudspeaking device and a multi-sound source sounding method thereof. The real wireless multi-channel speaker device at least comprises a first sound-producing device and a second sound-producing device. The first and second sound generation devices respectively comprise a first and second sound effect generation module, a first and second sound effect numerical module and a first and second loudspeaking module. The first sound effect numerical value module provides a plurality of control numerical values of first sound effect pronunciation to the first sound effect generation module to generate a first sound effect output signal, so that the first loudspeaker module outputs the first sound effect output signal. The second sound effect numerical value module provides a plurality of control numerical values of second sound effect pronunciation to the second sound effect generation module so as to generate a second sound effect output signal, and the second loudspeaker module outputs the second sound effect output signal.
Description
Technical Field
The present invention relates to a real wireless multi-channel speaker and a multi-sound-source sounding method thereof, and more particularly, to a real wireless multi-channel speaker capable of generating sound effect signals independently in each channel and synchronizing the audio output time axes and a multi-sound-source sounding method thereof.
Background
With the development of technology, many real wireless multi-channel speakers have been developed, which refer to wireless connection between a multi-speaker and a host by using near field communication technologies such as bluetooth, WIFI or NFC, such as real wireless earphones, wireless home theater, and the like. In addition to receiving the sound signal of the external electronic device, a wireless speaker technology capable of automatically generating sound effect has been developed, and this technology can output sound effect when the wireless speaker is not connected to the external electronic device, wherein one application scenario can be that the speaker does not perform bluetooth wireless connection, and can also output natural sound effects of noise shielding and sleep relaxing such as sea wave sound, raindrop sound, and the like. In the prior art, a wireless speaker device capable of generating sound effects is usually configured to generate sound effects from one sound generating end and then transmit the sound effects to another sound generating end. However, this method is too energy consuming and tends to result in insufficient power for the wireless headset. Another technique is that respective vocal end all has the storage audio, and the audio of so storage is limited, is difficult to the customization, is difficult to with user's interaction, and uses natural audio as an example, and the user can make the experience of making an uproar and sleeping disturbed because of constantly listening to repetition, limited natural audio.
Therefore, there is a need to invent a new true wireless multi-channel speaker and a method for generating sound with multiple sound sources thereof to solve the deficiencies of the prior art.
Disclosure of Invention
The main objective of the present invention is to provide a real wireless multi-channel speaker device, wherein each channel can independently generate audio signals and synchronize the time axis of each audio output.
Another main object of the present invention is to provide a method for sounding multiple sound sources for the above device.
In order to achieve the above object, the present invention provides a wireless multi-channel speaker device at least comprising a first sound generating device and a second sound generating device. The first sound producing device comprises a first sound effect generating module, a first sound effect numerical value module, a first wireless transceiver and a first loudspeaking module. The first sound effect numerical value module provides a plurality of control numerical values of the first sound effect pronunciation for the first sound effect generation module so as to generate a first sound effect output signal, and the first loudspeaker module outputs the first sound effect output signal. The second pronunciation device comprises a second sound effect generation module, a second sound effect numerical module, a second wireless transceiver and a second loudspeaking module. The first sound-producing device and the second sound-producing device are connected through the first wireless transceiver and the second wireless transceiver. The second sound effect numerical value module provides a plurality of control numerical values of second sound effect pronunciation to the second sound effect generation module so as to generate a second sound effect output signal, and the second loudspeaker module outputs the second sound effect output signal.
The invention relates to a multi-sound-source sounding method, which comprises the following steps: providing a plurality of control values of the first sound effect pronunciation to a first sound effect generating module through a first sound effect numerical value module so as to generate a first sound effect output signal; enabling the first loudspeaking module to output a first sound effect output signal; providing a plurality of control values of a second sound effect pronunciation to a second sound effect generating module through a second sound effect numerical module so as to generate a second sound effect output signal; and enabling the second loudspeaker module to output a second sound effect output signal.
By the true wireless multi-channel speaker and the multi-sound-source sound production method thereof, each sound channel can independently produce sound effect signals and synchronize the time axis of each audio output, at least a first sound effect output signal and a second sound effect output signal are output, and the sound effect output signals of each sound channel have the difference of time and gain values in the design of stereo output signals, so that a user can obtain better auditory effect.
Drawings
Fig. 1 is a schematic diagram of an architecture of a true wireless multi-channel speaker device according to the present invention.
FIG. 2 is a graph comparing the differences of the embodiments of the present invention.
FIG. 3 is a flowchart of the steps of a first embodiment of the method of synchronizing timelines for multi-source sounding of the present invention.
FIG. 4 is a flowchart of the steps of a second embodiment of the synchronized timeline method of multi-source sounding of the present invention.
FIG. 5 is a flowchart illustrating the steps of a stereo design method for multi-source sounding according to a third embodiment of the present invention.
FIG. 6 is a flowchart illustrating the steps of a stereo design method for multi-source sounding according to a fourth embodiment of the present invention.
Fig. 7 is a flowchart illustrating steps of a fifth embodiment of a stereo design method for multi-source sounding according to the present invention.
Fig. 8 is a flowchart illustrating steps of a sixth embodiment of a stereo design method for multi-source sounding according to the present invention.
Wherein, the reference numbers:
true wireless multi-channel speaker 1
First sound emitting device 10
First sound effect generating module 11
First sound effect numerical value module 12
First speaker module 13
First wireless transceiver 14
Synchronization module 15
Angle detection module 16
Second sound generating device 20
Second sound effect generating module 21
Second sound effect numerical module 22
Second wireless transceiver 24
Detailed Description
To better understand the technical content of the present invention, preferred embodiments are specifically illustrated as follows.
Fig. 1 is a schematic diagram of a structure of a wireless multi-channel speaker device according to the present invention.
In the present embodiment of the present invention, the true wireless multi-channel speaker device 1 can receive the sound signal of the external electronic device (not shown) in a wireless manner. The wireless multi-channel speaker 1 includes at least a first sound generating device 10 and a second sound generating device 20, which are connected by wireless, for example, a wireless earphone, but the present invention is not limited thereto, and the present invention may have a plurality of sound generating devices. The first audio device 10 includes a first audio effect generating module 11, a first audio effect value module 12, a first speaker module 13, a first wireless transceiver 14, a synchronization module 15 and an angle detecting module 16. The second sound generation device 20 includes a second sound effect generation module 21, a second sound effect value module 22, a second speaker module 23 and a second wireless transceiver 24. The first sound emitting device 10 and the second sound emitting device 20 can be wirelessly connected by using a near field communication technology such as bluetooth, WIFI, or NFC through the first wireless transceiver 14 and the second wireless transceiver 24, but the present invention is not limited to the above-mentioned embodiment. In addition to receiving the sound signal of the external electronic device, the first sound generating device 10 and the second sound generating device 20 can generate the sound effect signal independently. The first sound effect numerical module 12 provides a plurality of control values of the first sound effect pronunciation to the first sound effect generating module 11, and the second sound effect numerical module 22 provides a plurality of control values of the second sound effect pronunciation to the second sound effect generating module 21. The first sound effect numerical module 12 and the second sound effect numerical module 22 are the same kind of modules, and can store a plurality of control values of the first sound effect sound and a plurality of control values of the second sound effect sound, which may include stereo configuration values corresponding to each channel number, or first and second preset values as a plurality of control values of the first and second sound effect sounds. The first sound effect numerical module 12 and the second sound effect numerical module 22 can be a random number generator at the same time to generate the first sound effect pronunciation multiple control numerical values or the second sound effect pronunciation multiple control numerical values respectively. In addition, the first sound effect numerical value module 12 and the second sound effect numerical value module 22 can also receive a detector at the same time, for example, the numerical value returned by the angle detection module 16 is used as a plurality of control numerical values of the first sound effect pronunciation or a plurality of control numerical values of the second sound effect pronunciation.
After the first sound effect generating module 11 receives the plurality of control values of the first sound effect pronunciation, a first sound effect output signal is generated by calculation according to the sound channel number preset by the first sound effect generating module 11, so that the first loudspeaking module 13 outputs the first sound effect output signal. Similarly, after the second sound effect generating module 21 receives the plurality of control values of the second sound effect sound, the second sound effect generating module 21 calculates a second sound effect output signal according to the sound channel number preset by the second sound effect generating module 21, so that the second speaker module 23 outputs the second sound effect output signal. The first sound effect output signal and the second sound effect output signal may be noise-shielding and sleep-relaxing sound effects such as sea wave sound, raindrop sound, etc., but the invention is not limited thereto. It should be noted that although the first sound generating device 10 and the second sound generating device 20 may first store the first sound effect sound generating control values or the second sound effect sound generating control values therein, the first sound generating device 10 and the second sound generating device 20 may not directly store the first sound effect output signal and the second sound effect output signal.
It should be noted that, the modules of the real wireless multi-channel speaker device 1 may be configured by a hardware device, a software program combined with the hardware device, a firmware combined with the hardware device, and the like, but the present invention is not limited to the above-mentioned configuration. In addition, the present embodiment only illustrates the preferred embodiments of the present invention, and all possible combinations and modifications are not described in detail to avoid redundancy. However, it should be understood by those skilled in the art that the above modules or elements are not necessarily required. And other more detailed conventional modules or components may be included to practice the invention. Each module or component may be omitted or modified as required, and no other module or component may exist between any two modules.
Please refer to fig. 2 for an embodiment of the present invention and a comparison of the differences thereof, wherein the first embodiment and the second embodiment are methods of synchronizing time axes of multi-sound source sounding without stereo design, wherein one embodiment utilizes transmitting a synchronization control signal to synchronize the time axes, the other embodiment utilizes transmitting a plurality of control values of sound effect sounding to synchronize the time axes, and after a period of time, if there is no transmission record of the plurality of control values of sound effect sounding, the transmission of the synchronization control signal is utilized as an auxiliary synchronization time axis. The third and fourth embodiments are stereo design methods for generating sound by using multiple sound sources transmitting synchronous control signals to synchronize time axes, wherein one embodiment provides stereo configuration via an audio effect generation module, and the other embodiment provides stereo configuration via an audio effect value module. The fifth and sixth embodiments are stereo sound design methods for multi-sound source sounding mainly using a plurality of control values of the transmitted sound effect sounding to synchronize the time axis. Similarly, when no value is transmitted and recorded for a period of time, the transmission synchronization control signal is used as the auxiliary synchronization time axis. In one embodiment, the stereo configuration mode is provided by the sound effect generating module, and in the other embodiment, the stereo configuration mode is provided by the sound effect numerical module.
In order to control the time axis of the multi-channel audio output, the present invention designs a method capable of synchronizing the time axis, taking a two-channel true wireless earphone as an example, and generating a synchronization control signal through the synchronization module 15 of the first sound generating device 10. The synchronization signal is transmitted to the first sound value module 12, and the first wireless transceiver 14 transmits the synchronization control signal to the second wireless transceiver 24, so that the second sound value module 22 of the second sound device 20 obtains the synchronization control signal. The first wireless transceiver 14 and the second wireless transceiver 24 may utilize a near field communication technology such as bluetooth, WIFI, or NFC to transmit the synchronization control signal, but the invention is not limited thereto. The synchronous control signal can control a plurality of control values of the first sound effect pronunciation and a plurality of control values of the second sound effect pronunciation, so that the time axes of the first sound effect output signal and the second sound effect output signal are synchronous, and the time axes of the first sound effect output signal and the second sound effect output signal are the same. Therefore, in this embodiment, the synchronous control signal can enable the first speaker module 13 and the second speaker module 23 to output the first audio output signal and the second audio output signal with the same time axis.
Referring to fig. 3, a flowchart of the steps of a first embodiment of a method for synchronizing a timeline for multi-source sounding according to the present invention is shown. It should be noted that, although the method for adjusting the equalizer of the present invention is described below by taking the above-mentioned true wireless multi-channel speaker 1 as an example, the method for generating multi-source sound of the present invention is not limited to the use of the true wireless multi-channel speaker 1 having the same configuration as described above.
First, in order to control the time axis of multi-channel audio output, the first sound emitting apparatus 10 performs step S301: the synchronization module generates a synchronization control signal.
The synchronization module 15 generates a synchronization control signal, and transmits the synchronization control signal to the second wireless transceiver 24 of the second audio device 20 via the first wireless transceiver 14 of the first audio device 10. Therefore, the second pronunciation apparatus 20 can perform the step S302: the second sound effect numerical value module obtains the synchronous control signal.
At this time, the second sound effect value module 22 of the second sound generating device 20 receives the synchronization control signal. The first sound generating device 10 and the second sound generating device 20 then respectively perform step S303: the first sound effect numerical value module generates a plurality of control numerical values of a first sound effect pronunciation through the synchronous control signal, and the step S304: the second sound effect numerical value module generates a plurality of control numerical values of a second sound effect pronunciation through the synchronous control signal.
The first sound effect value module 12 of the first sound generating device 10 provides a first sound effect sound generation control values to the first sound effect generating module 11 according to the synchronization control signal, and the second sound effect value module 22 of the second sound generating device 20 also provides a second sound effect sound generation control values to the second sound effect generating module 21 according to the synchronization control signal. The first sound effect pronunciation control values and the second sound effect pronunciation control values can be the same values or different values.
Then, step S305 is performed: the first sound effect generating module generates a first sound effect output signal through the first sound effect pronunciation multiple control values and step S306: the second sound effect generating module generates a second sound effect output signal through the second sound effect pronunciation control values.
If the first and second sound effect pronunciations multiple control values are the same, it indicates that the first and second sound effect pronunciations multiple control values contain signal coding information of all channels, making the audio program more flexible. In this embodiment, the first sound effect generating module 11 receives a plurality of control values of the first sound effect sound generation, and then calculates and generates a first sound effect output signal according to the sound channel number. Similarly, the second sound effect generating module 21 receives a plurality of control values of the second sound effect pronunciation, and then generates a second sound effect output signal according to the sound channel number.
If the control values of the first sound effect pronunciation are different from the control values of the second sound effect pronunciation, the control values of the first sound effect pronunciation and the control values of the second sound effect pronunciation only contain the signal coding information of the sound channel, so that the audio generation procedure is more rapid and efficient. In this embodiment, the first sound effect generating module 11 receives a plurality of control values of a first sound effect sound of a dedicated first channel, and then directly calculates and generates a first sound effect output signal. Similarly, the second sound effect generating module 21 receives a plurality of control values of the second sound effect pronunciation of the dedicated second channel, and then can directly calculate and generate a second sound effect output signal.
Finally, step S307 is performed: outputting the first sound effect output signal and step S308: and outputting the second sound effect output signal.
Finally, the first speaker module 13 outputs the first audio output signal, and the second speaker module 23 outputs the second audio output signal.
Therefore, the first sound generating device 10 and the second sound generating device 20 can generate the sound effect signal independently, and the first sound effect output signal and the second sound effect output signal can be the same or different, and the invention is not limited thereto.
In order to control the time axis of the multi-channel audio output, the invention designs another method capable of synchronizing the time axis, taking a two-channel true wireless earphone as an example, a first sound effect numerical value module 12 of a first sound generation device 10 is used for generating a plurality of control numerical values of a first sound effect sound generation and a plurality of control numerical values of a second sound effect sound generation. On one hand, the first sound effect pronunciation control values are transmitted to the first sound effect generation module 11, and on the other hand, the first wireless transceiver 14 transmits the second sound effect pronunciation control values to the second wireless transceiver 24, so that the second sound effect value module 22 of the second pronunciation device 20 obtains the second sound effect pronunciation control values, and then provides the second sound effect generation module 21. At this time, the second sound effect numerical value module 22 only has the function of receiving and transmitting a plurality of sound effect pronunciation control numerical values. The first wireless transceiver 14 and the second wireless transceiver 24 can utilize the near field communication technology such as bluetooth, WIFI or NFC to transmit the second sound effect pronunciation control values, but the invention is not limited thereto. In the process of transmitting the plurality of control values of the second sound effect pronunciation, the transmission time point of the first wireless transceiver of the first sound-producing device and the receiving time point of the second wireless transceiver of the second sound-producing device can be calculated, so that the two devices synchronize the time axis, the first sound effect output signal is synchronized with the time axis of the second sound effect output signal, and the time axes of the first sound effect output signal and the second sound effect output signal are the same. However, if there is no value to be transmitted for a period of time, the method of transmitting the synchronization control signal of the first embodiment can be used as an auxiliary to synchronize the time axis. Therefore, in this embodiment, the first speaker module 13 and the second speaker module 23 can output the first sound output signal and the second sound output signal with the same time axis by using the transmission of the plurality of control values of the second sound generation as the main and the transmission of the synchronous control signal as the auxiliary.
Second embodiment of the invention referring to fig. 4, a flowchart of the steps of the second embodiment of the method for synchronizing time axis of multi-source sounding of the present invention is shown.
First, in order to control the time axis of multi-channel audio output, the first sound emitting apparatus 10 performs step S401: the first sound effect numerical value module generates a plurality of control numerical values of a first sound effect pronunciation and a plurality of control numerical values of a second sound effect pronunciation.
As described in the first embodiment, the control values of the first sound effect sound and the control values of the second sound effect sound may be the same values or different values. At this time, the first sound effect numerical value module 12 generates a first sound effect pronunciation multi-control numerical value and a second sound effect pronunciation multi-control numerical value, and transmits the second sound effect pronunciation multi-control numerical value to the second wireless transceiver 24 of the second pronunciation device 20 through the first wireless transceiver 14 of the first pronunciation device 10.
Therefore, the second sound generation means 20 may perform step S402: the second sound effect generation module obtains a plurality of control values of the second sound effect pronunciation.
At this time, the second sound effect numerical module 22 of the second sound generation device 20 receives the plurality of control numerical values of the second sound effect sound and provides the plurality of control numerical values to the second sound effect numerical module 12.
If there is no transmission record of the control values of the second sound effect sound for a period of time, the method for transmitting the synchronization control signal of the first embodiment can be used as an auxiliary synchronization time axis. The first sound emitting apparatus 10 may perform step S403: the synchronization module generates a synchronization control signal, S405: the first sound effect numerical value module generates a plurality of control numerical values of a first sound effect sound through the synchronization control signal, and the second sound generation device 20 performs the step S404: the second sound effect numerical module obtains the synchronous control signal, S406: the second sound effect numerical value module generates a plurality of control numerical values of a second sound effect pronunciation through the synchronous control signal.
Since steps S403 to S406 are the same as steps S301 to S304, detailed description thereof is omitted.
It should be noted that the first sound generating device 10 and the second sound generating device 20 can perform the steps S407 and S408 directly after the step S402, or can perform the steps after the step S406. Therefore, the first sound generating device 10 and the second sound generating device 20 respectively proceed to step S407: the first sound effect generating module generates a first sound effect output signal through the first sound effect pronunciation control values, S408: the second sound effect generating module generates a second sound effect output signal through the second sound effect pronunciation multiple control values, S409: outputting the first sound effect output signal, S410: outputting the second sound effect output signal.
Since steps S407 to S410 are the same as steps S305 to S308, detailed description thereof is omitted.
The third embodiment of the present invention is described for a stereo design method using multi-tone source sounding which transmits a synchronization control signal to synchronize the time axis. In this embodiment, a stereo configuration mode is provided by the sound effect generating module, and the first sound effect generating module 11 and the second sound effect generating module 21 have a preset stereo configuration processing mode for their channels, and after receiving a plurality of sound effect pronunciation control values from the first sound effect numerical module 12 and the second sound effect numerical module 22, process and generate sounds of different channels respectively. Therefore, in the present embodiment, the first sound effect generating module 11 and the second sound effect generating module 21 are different sound effect generating modules. The first sound effect output signal generated by the first sound effect generating module 11 at least comprises a first stereo output signal, and the second sound effect output signal generated by the second sound effect generating module 21 at least comprises a second stereo output signal, and the first stereo output signal and the second stereo output signal are designed as corresponding stereo output signals. In the third embodiment of the present invention, after the time axis is synchronized, the first stereo output signal outputted by the first speaker module 13 is m seconds later than the second stereo output signal outputted by the second speaker module 23, wherein m is greater than or equal to 0.0000001 seconds and less than or equal to 0.3 seconds. In addition, the gain value of the first stereo output signal output by the first speaker module 13 may be smaller than the gain value of the second stereo output signal output by the second speaker module 23. Therefore, the user will hear the second audio output signal of the second speaker module 23 first and then hear the first audio output signal of the first speaker module 13, and if the sound source moves from the position of the second speaker module 23 to the position of the first speaker module 13, the user will feel the same.
Referring to fig. 5, a flowchart of steps of a method for designing stereo sound generated by multiple sound sources according to a third embodiment of the present invention is shown.
First, in order to control the time axis of the multi-channel audio output, the first sound emitting apparatus 10 performs step S501: the synchronization module generates a synchronization control signal, and the second pronunciation device 20 then executes step S502: the second sound effect numerical value module obtains the synchronous control signal. The following first sound generating device 10 and the second sound generating device 20 then respectively perform step S503: the first sound effect numerical value module generates a plurality of control numerical values of a first sound effect pronunciation through the synchronous control signal, and step S504: the second sound effect numerical value module generates a plurality of control numerical values of a second sound effect pronunciation through the synchronous control signal. The first sound effect pronunciation control values and the second sound effect pronunciation control values can be the same values or different values.
Since steps S501 to S504 are the same as steps S301 to S304, detailed description thereof is omitted.
Then, step S505 is performed: the first sound effect generating module, which has preset the first channel stereo configuration method, generates a first sound effect output signal including a first stereo output signal through the first sound effect pronunciation multiple control values, and step S506: the second sound effect generating module with the preset second channel stereophonic configuration method generates a second sound effect output signal comprising a second stereophonic output signal through a plurality of control numerical values of the second sound effect pronunciation.
If the first and second sound effect pronunciations multiple control values are the same, it indicates that the first and second sound effect pronunciations multiple control values contain signal coding information of all channels, making the audio program more flexible. In this embodiment, after receiving a plurality of control values of a first sound effect pronunciation, the first sound effect generation module 11, which has preset a first channel stereo configuration method, generates a first sound effect output signal including a first stereo output signal according to the channel number calculation. Similarly, after receiving the plurality of control values of the second sound effect pronunciation, the second sound effect generation module 21, which has preset the second channel stereo configuration method, calculates and generates a second sound effect output signal including a second stereo output signal according to the channel number.
If the control values of the first sound effect pronunciation are different from the control values of the second sound effect pronunciation, the control values of the first sound effect pronunciation and the control values of the second sound effect pronunciation only contain the signal coding information of the sound channel, so that the audio generation procedure is more rapid and efficient. In this embodiment, after the first sound effect generating module 11, which has preset the stereo allocation method of the first channel, receives a plurality of control values of the first sound effect pronunciation of the dedicated first channel, it can directly calculate and generate the first sound effect output signal including the first stereo output signal. Similarly, the second sound effect generating module 21, which has preset the stereo configuration method of the second channel, receives a plurality of control values of the second sound effect pronunciation of the dedicated second channel, and then directly calculates and generates a second sound effect output signal including a second stereo output signal.
The first stereo output signal and the second stereo output signal are designed as corresponding stereo output signals. The first sound effect generating module 11 and the second sound effect generating module 21 have a preset audio configuration processing mode for their channels, so that the generated first sound effect output signal and the second sound effect output signal have different channel sound differences.
Finally, step S507 is executed: outputting a second sound effect output signal including a second stereo output signal and step S508: outputting a first sound effect output signal comprising a first stereophonic output signal.
After the time axis is synchronized, the first stereo output signal output by the first speaker module 13 is m seconds later than the second stereo output signal output by the second speaker module 23, where m is greater than or equal to 0.0000001 seconds and less than or equal to 0.3 seconds, so that the user can hear the second stereo output signal of the second speaker module 23 first and then hear the first stereo output signal of the first speaker module 13, but the invention is not limited thereto.
The fourth embodiment of the present invention is explained as a stereo sound design method using multi-source sounding which transmits a synchronization control signal to synchronize the time axis, as well as the third embodiment. In the fourth embodiment, the stereo configuration mode is provided by the sound effect pronunciation multiple control values generated by the sound effect value module, the first sound effect pronunciation multiple control values generated by the first sound effect value module 12 include the first channel stereo configuration code, the second sound effect pronunciation multiple control values generated by the second sound effect value module 22 include the second channel stereo configuration code, and the stereo configuration code represents the corresponding stereo configuration mode of the channel to which the stereo configuration code belongs. Similarly, the control values of the first sound effect pronunciation and the control values of the second sound effect pronunciation may be the same values or different values. Therefore, in the present embodiment, the first sound effect generating module 11 and the second sound effect generating module 21 are the same sound effect generating module.
Therefore, please refer to fig. 6, which is a flowchart illustrating a method for designing stereo sound generated by multiple sound sources according to a fourth embodiment of the present invention.
Compared to the third embodiment shown in fig. 5, the fourth embodiment differs from the steps S503 to S506 in the steps S603 to S606, and the other steps are the same. Therefore, after step S601 and step S602, step S603 is executed: the first sound effect numerical value module generates a first sound effect sound multiple control numerical values including a stereo configuration numerical value through the synchronous control signal, and step S604: the second sound effect numerical value module generates a plurality of control numerical values of a second sound effect pronunciation containing stereophonic configuration numerical values through synchronous control signals.
The difference between the steps S503 and S504 is that the generated first and second sound effect pronunciation control values already include stereo configuration values. Therefore, step S605 is performed subsequently: the first sound effect generating module generates a first sound effect output signal including a first stereo output signal by a plurality of control values of a first sound effect sound including stereo configuration values, and step S606: the second sound effect generating module generates a second sound effect output signal including a second stereophonic output signal through a plurality of control values of a second sound effect sound including the stereophonic configuration value.
If the first and second sound effect pronunciations multiple control values are the same, it indicates that the first and second sound effect pronunciations multiple control values contain signal coding information of all channels, making the audio program more flexible. In this embodiment, after the first sound effect generating module 11 receives the first sound effect sound multiple control values including the stereo configuration value, it calculates the first channel stereo configuration parameter corresponding to the first sound effect sound multiple control value pair according to the channel number thereof, and generates the first sound effect output signal including the first stereo output signal. Similarly, after the second sound effect generating module 21 receives the second sound effect sounding multiple control values including the stereo configuration value, it calculates the second channel stereo configuration parameter corresponding to the second sound effect sounding multiple control value pair according to the channel number, and generates the second sound effect output signal including the second stereo output signal.
If the control values of the first sound effect pronunciation are different from the control values of the second sound effect pronunciation, the control values of the first sound effect pronunciation and the control values of the second sound effect pronunciation only contain the signal coding information of the sound channel, so that the audio generation procedure is more rapid and efficient. In this embodiment, after the first sound effect generating module 11 receives a plurality of control values of a first sound effect pronunciation including a first stereo configuration value of a dedicated first channel, a first sound effect output signal including a first stereo output signal can be directly calculated and generated. Similarly, after the second sound effect generating module 21 receives a plurality of control values of a second sound effect sound including a second stereo configuration value in the dedicated second channel, a second sound effect output signal including a second stereo output signal can be directly calculated and generated.
Therefore, each sound channel can generate a first sound effect output signal comprising a first stereo output signal and a second sound effect output signal comprising a second stereo output signal. Finally, in step S607 and step S608, the first sound effect output signal including the first stereo output signal and the second sound effect output signal including the second stereo output signal are finally outputted.
The fifth embodiment of the present invention is described as a stereo design method for generating sound by using multiple sound sources that mainly use sound effect to generate multiple control values and secondly use synchronous control signals to synchronize the time axis. In this embodiment, the sound effect generating module provides a stereo configuration mode, and the first sound effect generating module 11 and the second sound effect generating module 21 have a preset stereo configuration processing mode for their channels, and process and generate sounds of different channels after the sound effects pronounce a plurality of control values. Therefore, in the present embodiment, the first sound effect generating module 11 and the second sound effect generating module 21 are different sound effect generating modules. The first sound effect output signal generated by the first sound effect generating module 11 at least comprises a first stereo output signal, and the second sound effect output signal generated by the second sound effect generating module 21 at least comprises a second stereo output signal, and the first stereo output signal and the second stereo output signal are designed as corresponding stereo output signals. In the fifth embodiment of the present invention, after the time axis is synchronized, the user will hear the second audio output signal of the second speaker module 23 first and then hear the first audio output signal of the first speaker module 13, as if the sound source moves from the position of the second speaker module 23 to the position of the first speaker module 13.
Referring to fig. 7, a flowchart of steps of a method for designing stereo sound generated by multiple sound sources according to a fifth embodiment of the present invention is shown.
First, in order to control the time axis of the multi-channel audio output, the first sound emitting apparatus 10 performs step S701: the first sound effect numerical value module generates a plurality of control numerical values of a first sound effect pronunciation and a plurality of control numerical values of a second sound effect pronunciation. The first sound effect pronunciation control values and the second sound effect pronunciation control values can be the same values or different values. The second sound generation device 20 may perform step S702: the second sound effect generation module obtains a plurality of control values of the second sound effect pronunciation.
Since steps S701 to S702 are the same as steps S401 to S402, detailed description thereof is omitted.
If there is no transmission record of the control values of the second sound effect sound during a period of time, the synchronous control signal transmission method can be used as an auxiliary synchronous time axis. The first sound emitting device 10 may perform step S703: the synchronization module generates a synchronization control signal, S705: the first sound effect numerical value module generates a plurality of control numerical values of a first sound effect sound through the synchronization control signal, and the second sound generation device 20 performs the step S704: the second sound effect value module obtains the synchronization control signal, S706: the second sound effect numerical value module generates a plurality of control numerical values of a second sound effect pronunciation through the synchronous control signal.
Since steps S703 to S706 are the same as steps S501 to S504, detailed description thereof is omitted.
It should be noted that the first sound generating device 10 and the second sound generating device 20 can perform the steps S707 and S708 directly after the step S702, or can perform the steps after the step S706. Therefore, the first sound emitting device 10 and the second sound emitting device 20 respectively proceed to step S707: the first sound effect generating module, which has preset the first channel stereo configuration method, generates a first sound effect output signal including a first stereo output signal through the first sound effect pronunciation multiple control values, S708: a second sound effect generating module, which is preset with a second channel stereo configuration method, generates a second sound effect output signal including a second stereo output signal through a plurality of second sound effect pronunciation control values, S709: outputting a second sound effect output signal including a second stereo output signal, S710: outputting a first sound effect output signal comprising a first stereo output signal.
Since steps S707 to S710 are the same as steps S505 to S508, detailed description thereof is omitted.
The sixth embodiment and the fifth embodiment of the present invention are described as the stereo sound design method mainly using the multi-sound source for transmitting the plurality of control values with the same sound effect and secondarily using the transmission synchronization control signal to synchronize the time axis. In the sixth embodiment, the stereo configuration mode is provided by the sound effect pronunciation multiple control values generated by the sound effect value module, the first sound effect pronunciation multiple control values generated by the first sound effect value module 12 include the first channel stereo configuration code, the second sound effect pronunciation multiple control values generated by the second sound effect value module 22 include the second channel stereo configuration code, and the stereo configuration code represents the corresponding stereo configuration mode of the channel to which the stereo configuration code belongs. Similarly, the control values of the first sound effect pronunciation and the control values of the second sound effect pronunciation may be the same values or different values. Therefore, in the present embodiment, the first sound effect generating module 11 and the second sound effect generating module 21 are the same sound effect generating module.
Therefore, please refer to fig. 8, which is a flowchart illustrating a sixth embodiment of a stereo design method for multi-sound source sounding according to the present invention.
Compared to the fifth embodiment shown in fig. 7, the sixth embodiment is different from the sixth embodiment in steps S705 to S708 only in steps S805 to S808, and the other steps are the same. Therefore, step S801 is first performed: the first sound effect numerical value module generates a plurality of control numerical values of a first sound effect pronunciation and a plurality of control numerical values of a second sound effect pronunciation, and step S802: the second sound effect generation module obtains a plurality of control values of the second sound effect pronunciation.
Since steps S801 to S802 are the same as steps S401 to S402, detailed description thereof is omitted.
After step S801 and step S802, if there is no transmission record of the control values of the second sound effect sound for a period of time, the method of transmitting the synchronization control signal may be used as an auxiliary synchronization time axis. The first sound emitting device 10 may perform step S803: the synchronization module generates a synchronization control signal, S805: the first sound effect numerical value module generates a plurality of control numerical values of the first sound effect sound including the stereo configuration numerical value through the synchronization control signal, and the second sound generation device 20 performs the step S804: the second sound effect value module obtains the synchronization control signal, S806: the second sound effect numerical value module generates a plurality of control numerical values of second sound effect pronunciation containing stereo configuration numerical values through synchronous control signals.
Since steps S803 to S806 are the same as steps S601 to S604, detailed description thereof is omitted.
It should be noted that the first sound generating device 10 and the second sound generating device 20 can perform the steps S807 and S808 directly after the steps S801 and S802, or can perform the steps S806. Therefore, the first sound generating device 10 and the second sound generating device 20 execute step S807: the first sound effect generating module generates a first sound effect output signal including a first stereo output signal through a plurality of control values of a first sound effect sound including a stereo configuration value, and step S808: the second sound effect generating module generates a second sound effect output signal including a second stereo output signal by generating a plurality of control values through a second sound effect sound including stereo configuration values, and step S809: outputting a second sound effect output signal including a second stereo output signal, S810: outputting a first sound effect output signal comprising a first stereo output signal.
Since steps S807 to S810 are the same as steps S605 to S608, detailed description thereof is omitted.
It should be noted that the method for generating a multi-sound source sound according to the present invention is not limited to the order of the steps in the above six embodiments, and the order of the steps may be changed as long as the object of the present invention is achieved.
In another embodiment of the present invention, the first sound emitting device 10 further includes an angle detecting module 16. The angle detection module 16 may be a gyroscope or an angular accelerometer, but the invention is not limited thereto. When the user wears the first sound generating device 10, the angle detecting module 16 is used to detect the rotation angle or the inclination angle between the first sound generating device 10 and the second sound generating device 20, i.e. to detect whether the user's head is rotated or inclined. If the head of the user rotates or inclines, the first sound effect numerical value module 12 and the second sound effect numerical value module 22 will receive the numerical values returned by the detector as a plurality of first sound effect pronunciation control numerical values or a plurality of second sound effect pronunciation control numerical values, and will generate a plurality of sound effect pronunciation control numerical values according to the head action of the user, so that the plurality of sound effect pronunciation control numerical values of each channel can design the corresponding stereo output signals of the first sound effect output signal and the second sound effect output signal through the rotation angle or the inclination angle. Therefore, the user can hear the first sound effect output signal and the second sound effect output signal matched with the head action. For example, when the user hears the auditory sensation of the first audio output signal and the second audio output signal from left to right, and when the user turns to the left, the first audio generating module 11 can adjust the first audio output signal and the second audio output signal, so that the auditory sensation of the user is from front to back.
As can be seen from the above description, according to the above embodiment, the first sound generating device 10 and the second sound generating device 20 of the wireless multi-channel speaker 1 can generate sound effect signals independently for each channel and synchronize the time axes of the audio outputs, so as to output at least the first sound effect output signal and the second sound effect output signal, and the sound effect output signals of each channel have a difference between time and gain values in the design of stereo output signals, so that users can obtain better hearing effects.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (28)
1. A true wireless multi-channel loudspeaker device, comprising:
a first sound generating device, which comprises a first sound effect generating module, a first sound effect numerical module, a first wireless transceiver and a first loudspeaking module; the first sound effect numerical value module provides a first sound effect pronunciation multiple control numerical values to the first sound effect generating module so as to generate a first sound effect output signal, and the first loudspeaker module outputs the first sound effect output signal; and
a second sound device, which comprises a second sound effect generating module, a second sound effect numerical module, a second wireless transceiver and a second loudspeaking module; the first sound-producing device and the second sound-producing device are connected through the first wireless transceiver and the second wireless transceiver; the second sound effect numerical value module provides a plurality of control numerical values of second sound effect pronunciation to the second sound effect generating module so as to generate a second sound effect output signal, and the second loudspeaker module outputs the second sound effect output signal;
wherein the first sound-generating device provides a synchronization message to the second sound-generating device via the first wireless transceiver;
wherein the first sound-producing device and the second sound-producing device do not receive the first sound-effect output signal or the second sound-effect output signal from any external electronic device.
2. The real wireless multi-channel speaker device as claimed in claim 1, wherein the first sound effect numerical module transmits the second sound effect sound generation control values to the second wireless transceiver via the first wireless transceiver, so that the second sound effect numerical module obtains the second sound effect sound generation control values to provide to the second sound effect generation module, and the output time axes of the first sound effect output signal and the second sound effect output signal are synchronized.
3. The multi-channel audio speaker device as claimed in claim 1, wherein the first audio device further comprises a synchronization module for generating a synchronization control signal to the first audio numerical module, and the first wireless transceiver transmits the synchronization control signal to the second wireless transceiver, so that the second audio numerical module obtains the synchronization control signal to synchronize the output time axes of the first and second audio output signals.
4. The real wireless multi-channel speaker device as claimed in any one of claims 1 to 3, wherein the control values of the first audio sound are the same as the control values of the second audio sound.
5. The real wireless multi-channel speaker device as claimed in any one of claims 1 to 3, wherein the first and second audio sound generation control values are different.
6. The real wireless multi-channel speaker device as claimed in claim 2 or 3, wherein the second sound effect generation module firstly utilizes the transmission sound effect to generate a plurality of control values to synchronize the time axis, and after a period of time, if there is no transmission record of the sound effect to generate a plurality of control values, the second sound effect generation module then utilizes the transmission synchronization control signal to synchronize the time axis.
7. The real wireless multi-channel speaker device as claimed in claim 2 or 3, wherein the first sound effect value module and the second sound effect value module are the same kind of module.
8. The real wireless multi-channel speaker device as claimed in claim 7, wherein the first audio output signal generated by the first audio generating module comprises a first stereo output signal, and the second audio output signal generated by the second audio generating module comprises a second stereo output signal; the first stereo output signal and the second stereo output signal are designed to be corresponding stereo output signals, and after time axis synchronization, the time of the first loudspeaker module outputting the first stereo output signal is m seconds later than the time of the second loudspeaker module outputting the second stereo output signal, wherein m is more than or equal to 0.0000001 seconds and less than or equal to 0.3 seconds.
9. The real wireless multi-channel speaker device as claimed in claim 8, wherein the first audio effect generating module generates the first audio effect output signal to include the first stereo output signal according to a preset stereo configuration of a first channel; the second sound effect generating module enables the generated second sound effect output signal to contain the second stereo output signal according to a preset stereo configuration of a second sound channel.
10. The real wireless multi-channel speaker device as claimed in claim 8, wherein the first audio value module is used to generate a first audio sound configuration value comprising a first channel stereo configuration value, such that the first audio output signal generated by the first audio generating module comprises the first stereo output signal; the second sound effect numerical value module is used for generating a second sound effect pronunciation multiple control numerical values containing a second channel stereophonic configuration numerical value, and the second sound effect output signal generated by the second sound effect generating module can contain the second stereophonic output signal.
11. The multi-channel speaker device as claimed in claim 8, wherein after time synchronization, the gain value of the first speaker module outputting the first stereo output signal is smaller than the gain value of the second speaker module outputting the second stereo output signal.
12. The multi-channel speaker device as claimed in claim 7, wherein the first audio numerical module and the second audio numerical module are both random number generators for generating the first audio sound control values and the second audio sound control values, respectively.
13. The multi-channel audio speaker device as claimed in claim 7, wherein the first audio value module is configured to store a first predetermined value as the first audio sound control values, and the second audio value module is configured to store a second predetermined value as the second audio sound control values.
14. The real wireless multi-channel speaker device as claimed in claim 7, wherein the first sound generating device further comprises an angle detecting module for detecting a rotation angle or an inclination angle, and the first sound effect numerical module and the second sound effect numerical module receive the numerical values returned by the angle detecting module as the first sound effect sound generation control numerical values and the second sound effect sound generation control numerical values, so that the sound effect sound generation control numerical values of each channel can design the stereo output signals corresponding to the first sound effect output signal and the second sound effect output signal through the rotation angle or the inclination angle.
15. A method for producing sound by multiple sound sources is used for a true wireless multi-channel loud speaker device, and is characterized in that the true wireless multi-channel loud speaker device at least comprises a first sound producing device and a second sound producing device, wherein the first sound producing device comprises a first sound effect generating module, a first sound effect numerical value module, a first wireless transceiver and a first loud speaker module, and the second sound producing device comprises a second sound effect generating module, a second sound effect numerical value module, a second wireless transceiver and a second loud speaker module; the first sound-producing device and the second sound-producing device are connected through the first wireless transceiver and the second wireless transceiver; the method comprises the following steps:
providing a first sound effect pronunciation plurality of control values to the first sound effect generating module through the first sound effect numerical value module so as to generate a first sound effect output signal;
enabling the first loudspeaking module to output the first sound effect output signal;
providing a second sound effect pronunciation plurality of control values to the second sound effect generating module through the second sound effect numerical module so as to generate a second sound effect output signal;
enabling the second speaker module to output the second sound effect output signal; and
providing a synchronization message to the second sound-producing device via the first wireless transceiver;
wherein the first sound-producing device and the second sound-producing device do not receive the first sound-effect output signal or the second sound-effect output signal from any external electronic device.
16. The method of multi-source voicing of claim 15, further comprising the steps of:
transmitting the second sound effect pronunciation control values to the second wireless transceiver via the first wireless transceiver, so that the second sound effect numerical module obtains the second sound effect pronunciation control values to provide to the second sound effect generation module; and
the output time axes of the first sound effect output signal and the second sound effect output signal are synchronous.
17. The method of multi-source voicing of claim 15, further comprising the steps of:
generating a synchronization control signal through a synchronization module;
transmitting the synchronization control signal to the second wireless transceiver via the first wireless transceiver so that the second sound effect numerical module obtains the synchronization control signal; and
the output time axes of the first sound effect output signal and the second sound effect output signal are synchronous.
18. The method of claim 15-17, wherein the first and second sound effect sounding control values are the same.
19. The method of any of claims 15-17, wherein the first and second plurality of control values are different.
20. The method of multi-source voicing of claim 16 or 17, further comprising the steps of:
firstly, utilizing a plurality of control values of the sound effect transmission sound to synchronize a time axis;
after a period of time, if there is no control value transmission record of sound effect pronunciation, then the transmission synchronization control signal is used to synchronize the time axis.
21. The method of claim 16 or 17, further comprising the step of setting the first sound effect value module and the second sound effect value module as the same type of module.
22. The method of claim 21,
the first sound effect generating module generates the first sound effect output signal and at least comprises a first stereophonic output signal;
the second sound effect generating module at least comprises a second stereophonic output signal, wherein the first stereophonic output signal and the second stereophonic output signal are designed to be corresponding stereophonic output signals; and
after the time axis is synchronized, the time when the first loudspeaker module outputs the first stereo output signal is m seconds later than the time when the second loudspeaker module outputs the second stereo output signal, wherein m is more than or equal to 0.0000001 seconds and less than or equal to 0.3 seconds.
23. The method of claim 22, further comprising the steps of:
generating a first sound effect output signal according to a stereo configuration preset by a first sound channel of the first sound effect generating module, wherein the first sound effect output signal comprises the first stereo output signal; and
and enabling the second sound effect output signal to contain the second stereophonic output signal according to the preset stereophonic configuration of a second sound channel of the second sound effect generating module.
24. The method of claim 22, further comprising the steps of:
storing a first channel stereophonic configuration value in the first sound effect value module, so that the first sound effect output signal generated by the first sound effect generating module can comprise the first stereophonic output signal; and
storing a second channel stereo configuration value in the second sound effect value module, so that the second sound effect output signal generated by the second sound effect generating module can contain the second stereo output signal.
25. The method of claim 22, further comprising the steps of:
after the time axis is synchronized, the gain value of the first loudspeaking module outputting the first stereophonic output signal is smaller than the gain value of the second loudspeaking module outputting the second stereophonic output signal.
26. The method of claim 21, further comprising the step of generating the first and second control values using a random number generator.
27. The method of multi-source voicing of claim 21, further comprising the steps of:
storing a first preset numerical value as a plurality of control numerical values of the first sound effect pronunciation in the first sound effect numerical value module; and
and storing a second preset numerical value as a plurality of control numerical values of the second sound effect pronunciation in the second sound effect numerical value module.
28. The method of claim 21, further comprising the steps of:
for detecting a rotation angle or an inclination angle; and
the first sound effect numerical value module and the second sound effect numerical value module can receive the numerical value of the rotation angle or the inclination angle as a plurality of control numerical values of the first sound effect pronunciation and a plurality of control numerical values of the second sound effect pronunciation, so that the plurality of control numerical values of the sound effect pronunciation of each sound channel can design a corresponding stereo output signal of the first sound effect output signal and the second sound effect output signal through the rotation angle or the inclination angle.
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