CN113163302B - True wireless multi-channel speaker device and method for producing sound from multiple sound sources - Google Patents

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

True wireless multi-channel speaker device and method for producing sound from multiple sound sources

technical field

The present invention relates to a true wireless multi-channel speaker device and a method for producing sound from multiple sound sources, in particular to a true wireless multi-channel speaker device in which each channel can independently generate sound effect signals and synchronize each audio output time axis and Its multi-source sound method.

Background technique

With the advancement of technology, many true wireless multi-channel speaker devices have been developed, which refer to the wireless connection between multiple speakers and the host using near-field communication technologies such as Bluetooth, WIFI or NFC, such as true wireless headphones, wireless home theater and other devices. In addition to receiving sound signals from external electronic devices, known wireless speaker devices have developed a wireless speaker device technology that can generate sound effects by themselves. This technology can output sound effects when the wireless speaker device is not connected to external electronic devices , one of the application scenarios can be that the speaker device does not have a Bluetooth wireless connection, but it can also output natural sound effects such as the sound of ocean waves and raindrops to block noise and sleep. In the prior art, the wireless speaker device capable of generating sound effects usually generates sound effects from one side of the sound output end, and then transmits the sound effect to the other sound output end. However, this method consumes too much energy, which may easily lead to insufficient power of the wireless earphone device. Another technology is to store sound effects for each sound end. In this way, the stored sound effects are limited, difficult to customize, and difficult to interact with users. Taking natural sound effects as an example, users will continue to listen to repeated, limited sound effects. Natural sound effect, so that the experience of noise masking and sleeping is disturbed.

Therefore, it is necessary to invent a new true wireless multi-channel speaker device and its multi-source sounding method to solve the lack of previous technologies.

Contents of the invention

The main purpose of the present invention is to provide a true wireless multi-channel speaker device, each channel of which can independently generate sound effect signals and synchronize the time axis of each audio output.

Another main purpose of the present invention is to provide a multi-source sounding method for the above-mentioned device.

To achieve the above purpose, the true wireless multi-channel speaker device of the present invention at least includes a first sound emitting device and a second sound emitting device. The first sound producing device includes a first sound effect generating module, a first sound effect value module, a first wireless transceiver and a first speaker module. The first sound effect value module provides a plurality of control values for the first sound effect pronunciation to the first sound effect generating module to generate a first sound effect output signal, so that the first speaker module outputs the first sound effect output signal. The second sound producing device includes a second sound effect generating module, a second sound effect value module, a second wireless transceiver and a second speaker module. The first sounding device and the second sounding device are connected through the first wireless transceiver and the second wireless transceiver. The second sound effect value module provides a plurality of control values for the second sound effect pronunciation to the second sound effect generating module to generate a second sound effect output signal, so that the second speaker module outputs the second sound effect output signal.

The method for producing sound from multiple sound sources of the present invention includes the following steps: providing a plurality of control values for the first sound effect pronunciation to the first sound effect generation module through the first sound effect value module to generate the first sound effect output signal; making the first speaker module output the first sound effect output signal A sound effect output signal; the second sound effect value module provides the second sound effect to emit a plurality of control values to the second sound effect generating module to generate the second sound effect output signal; and makes the second speaker module output the second sound effect output signal.

Through the true wireless multi-channel speaker device and its multi-source sounding method of the present invention, each channel can independently generate sound effect signals and synchronize the time axis of each audio output, and output at least the first sound effect output signal and the second sound effect output signal, and the audio output signal of each channel has a time and gain value difference in the design of the stereo output signal, so that the user can obtain a better auditory effect.

Description of drawings

FIG. 1 is a schematic structural diagram of a true wireless multi-channel speaker device of the present invention.

Fig. 2 is a difference comparison chart of the embodiments of the present invention.

FIG. 3 is a flow chart of the steps of the first embodiment of the method for synchronizing the time axis of multi-source sounds according to the present invention.

FIG. 4 is a flow chart of the steps of the second embodiment of the method for synchronizing the time axis of multi-source sounds according to the present invention.

FIG. 5 is a flow chart of the steps of the third embodiment of the stereophonic design method for multi-sound source sounding according to the present invention.

FIG. 6 is a flow chart of the steps of the fourth embodiment of the method for designing stereo sound from multiple sound sources according to the present invention.

FIG. 7 is a flow chart of the steps of the fifth embodiment of the method for designing stereo sound from multiple sound sources according to the present invention.

FIG. 8 is a flow chart of the steps of the sixth embodiment of the stereophonic design method for multi-sound source sounding according to the present invention.

Among them, reference signs:

True wireless multi-channel speaker device 1

First sounding device 10

The first sound effect generation module 11

The first sound effect value module 12

The first speaker module 13

first wireless transceiver 14

Synchronization module 15

Angle detection module 16

Second sounding device 20

The second sound effect generating module 21

The second sound effect value module 22

Second speaker module 23

Second wireless transceiver 24

detailed description

In order to better understand the technical content of the present invention, preferred specific embodiments are given as follows.

Please refer to FIG. 1 below, which is a schematic structural diagram of a true wireless multi-channel speaker device of the present invention.

In this embodiment of the present invention, the true wireless multi-channel speaker device 1 can receive sound signals from an external electronic device (not shown) in a wireless manner. The true wireless multi-channel speaker device 1 includes at least a first sounding device 10 and a second sounding device 20, which are wirelessly connected, such as true wireless earphones, but the present invention is not limited thereto, and the present invention also There can be multiple sounding devices. The first sound producing device 10 includes a first sound effect generating module 11 , a first sound effect value module 12 , a first speaker module 13 , a first wireless transceiver 14 , a synchronization module 15 and an angle detection module 16 . The second sound producing device 20 includes a second sound effect generating module 21 , a second sound effect value module 22 , a second speaker module 23 and a second wireless transceiver 24 . Between the first sounding device 10 and the second sounding device 20, the first wireless transceiver 14 and the second wireless transceiver 24 can utilize near-field communication technologies such as Bluetooth, WIFI or NFC to wirelessly connect, but the present invention does not rely on the above-mentioned The methods listed are limited. In addition to receiving sound signals from external electronic devices, both the first sound producing device 10 and the second sound producing device 20 can independently generate sound effect signals. The first sound effect value module 12 provides a plurality of control values for the first sound effect generation module 11 to the first sound effect generation module 11 , and the second sound effect value module 22 provides a plurality of control values for the second sound effect generation module 21 . The first sound effect value module 12 and the second sound effect value module 22 are modules of the same type, which can store a plurality of control values for the first sound effect pronunciation and a plurality of control values for the second sound effect pronunciation, which may include various The stereo configuration value corresponding to the channel number, or the first and second preset values are used as the first and the second sound effects to produce a plurality of control values. 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, so as to respectively generate a plurality of control values for the first sound effect utterance or a plurality of control values for the second sound effect utterance. In addition, the first sound effect numerical module 12 and the second sound effect numerical module 22 can also receive detectors at the same time, such as the value returned by the angle detection module 16 as the first sound effect pronunciation multiple control values or the second sound effect pronunciation multiple control values, the present invention does not limit the generation of multiple control values for the first sound effect utterance or multiple control values for the second sound effect utterance.

After the first sound effect generating module 11 receives the first sound effect and pronounces a plurality of control values, it calculates and generates the first sound effect output signal according to the channel number preset by the first sound effect generating module 11, so that the first speaker module 13 outputs the first sound effect output signal. Similarly, after the second sound effect generating module 21 receives the second sound effect to pronounce a plurality of control values, it calculates and generates the second sound effect output signal according to the 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-masking sound effects such as ocean waves, raindrops, etc., but the present invention is not limited thereto. It should be noted that although the first sound producing device 10 and the second sound producing device 20 may first store a plurality of control values for the first sound effect pronunciation or a plurality of control values for the second sound effect pronunciation, the first sound sound device 10 and the second sound effect The second sound output device 20 does not store the first sound effect output signal and the second sound effect output signal directly.

It should be noted that each module of the true wireless multi-channel speaker device 1 can be constructed by hardware devices, software programs combined with hardware devices, firmware combined with hardware devices, etc., but the present invention is not limited to the above-mentioned methods . In addition, this embodiment is only an example of a preferred embodiment of the present invention, and all possible combinations of changes are not described in detail in order to avoid redundant description. However, those skilled in the art should understand that not all the above modules or elements are necessary. And in order to implement the present invention, other more detailed conventional modules or components may also be included. Each module or element may be omitted or modified as required, and there may not be other modules or elements between any two modules.

Here please refer to Fig. 2 to list the embodiment of the present invention and compare its difference, at first the first embodiment and the second embodiment are the synchronous time axis method of the multi-source sound of no stereo design, wherein one embodiment is to utilize transmission synchronization The control signal is used to synchronize the time axis. Another embodiment is mainly to use the transmission of sound effects to pronounce multiple control values to synchronize the time axis. Complemented by synchronized timelines. The third embodiment and the fourth embodiment are the stereo sound design method of multiple sound sources that transmit synchronous control signals to synchronize the time axis. One embodiment provides a stereo configuration method through the sound effect generation module, and the other embodiment uses the sound effect The numerical module provides a stereo configuration method. The fifth embodiment and the sixth embodiment are the stereo sound design method of multi-source sound generation mainly by transmitting sound effects to generate multiple control values to synchronize the time axis. Similarly, when there is no value transmission record for a period of time, the transmission synchronization control signal is used to supplement the synchronization time axis. In one embodiment, the stereo configuration is provided by the sound effect generating module, and in the other embodiment, the stereo configuration is provided by the sound effect numerical module.

In order to control the time axis of 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, a synchronization control signal is generated by the synchronization module 15 of the first sound producing device 10 . This synchronization signal is transmitted to the first sound effect value module 12 on the one hand, and on the other hand, the synchronization control signal is transmitted to the second wireless transceiver 24 by the first wireless transceiver 14, so that the second sound effect value module of the second pronunciation device 20 22 Obtain a synchronous control signal. The first wireless transceiver 14 and the second wireless transceiver 24 can use Bluetooth, WIFI or NFC and other near field communication technologies to transmit synchronization control signals, but the present invention is not limited thereto. The synchronous control signal can control the first sound effect to pronounce multiple control values and the second sound effect to pronounce multiple control values, so that the time axis of the first sound effect output signal and the second sound effect output signal are synchronized, so that the first sound effect output signal and the second sound effect output signal The time axes of the two sound effect output signals are the same. Therefore, in this embodiment, the synchronous control signal enables the first speaker module 13 and the second speaker module 23 to output the first sound effect output signal and the second sound effect output signal with the same time axis.

First Embodiment of the Present Invention Please refer to FIG. 3 , which is a flow chart of the steps of the first embodiment of the method for synchronizing the time axis of multi-source sounds according to the present invention. It should be noted here that although the above-mentioned real wireless multi-channel speaker device 1 is used as an example to illustrate the equalizer adjustment method of the present invention, the multi-source sound production method of the present invention does not apply to the above-mentioned same structure. True wireless multi-channel speaker device 1 only.

Firstly, to control the time axis of the multi-channel audio output, the first sound producing device 10 proceeds to step S301: the synchronization module generates a synchronization control signal.

At this time, the synchronization module 15 generates a synchronization control signal, and transmits the synchronization control signal to the second wireless transceiver 24 of the second sound emitting device 20 through the first wireless transceiver 14 of the first sound emitting device 10 . Therefore, the second sound producing device 20 may execute step S302: the second sound effect value module acquires the synchronization control signal.

At this time, the second sound effect numerical module 22 of the second sound producing device 20 receives the synchronous control signal. The first sound producing device 10 and the second sound producing device 20 will then proceed to step S303 respectively: the first sound effect value module generates a first sound effect to pronounce a plurality of control values through the synchronous control signal, step S304: the second sound effect value module passes the synchronous control signal Generate a second sound effect to pronounce a plurality of control values.

The first sound effect numerical module 12 of the first pronunciation device 10 provides the first sound effect pronunciation multiple control values to the first sound effect generation module 11 according to the synchronous control signal, and the second sound effect numerical module 22 of the second pronunciation device 20 also according to the synchronization The control signal provides the second sound effect to emit a plurality of control values to the second sound effect generating module 21 . The plurality of control values for the first sound effect pronunciation and the plurality of control values for the second sound effect pronunciation may be the same value or different values.

Then proceed to step S305: the first sound effect generating module generates a first sound effect output signal by uttering a plurality of control values through the first sound effect and step S306: the second sound effect generating module generates a second sound effect output by pronouncing a plurality of control values through the second sound effect Signal.

If the multiple control values of the first sound effect pronunciation and the multiple control values of the second sound effect pronunciation are the same, it means that the multiple control values of the first sound effect pronunciation and the multiple control values of the second sound effect pronunciation contain the signal coding information of all channels, so that the generated Audio programs are more flexible. In this embodiment, the first sound effect generating module 11 generates the first sound effect output signal through calculation according to the number of the channel after receiving the first sound effect to produce a plurality of control values. Similarly, the second sound effect generating module 21 generates a second sound effect output signal according to the number of the channel after receiving multiple control values produced by the second sound effect.

If the plurality of control values for the first sound effect pronunciation and the plurality of control values for the second sound effect pronunciation are different, it means that the plurality of control values for the first sound effect pronunciation and the plurality of control values for the second sound effect pronunciation each only contain the signal encoding information of the corresponding channel, Make programs that generate audio faster and more efficient. In this embodiment, the first sound effect generating module 11 can directly calculate and generate the first sound effect output signal after receiving the first sound effect outputting a plurality of control values dedicated to the first channel. Similarly, the second sound effect generating module 21 can directly calculate and generate the second sound effect output signal after receiving a plurality of control values for the second sound effect output dedicated to the second channel.

Finally, proceed to step S307: output the first sound effect output signal and step S308: output the second sound effect output signal.

Finally, the first speaker module 13 outputs the first sound effect output signal, and the second speaker module 23 outputs the second sound effect output signal.

Therefore, both the first sound output device 10 and the second sound output device 20 can independently generate sound effect signals, and the first sound effect output signal and the second sound effect output signal can be the same or different, and the present invention is not limited thereto.

In order to control the time axis of multi-channel audio output, the present invention designs another method capable of synchronizing the time axis. Taking a two-channel true wireless earphone as an example, the first sound effect numerical module 12 of the first pronunciation device 10 generates a first sound effect value module 12. A sound effect emits a plurality of control values and a second sound effect emits a plurality of control values. On the one hand, a plurality of control values of the first sound effect pronunciation are transmitted to the first sound effect generating module 11, and on the other hand, the first wireless transceiver 14 transmits a plurality of control values of the second sound effect pronunciation to the second wireless transceiver 24, so that the first sound effect The second sound effect value module 22 of the second sound effect device 20 obtains a plurality of control values for the second sound effect sound generation, and then provides them to the second sound effect generation module 21 . At this time, the second sound effect value module 22 only has the function of receiving and transmitting multiple control values for sound effect pronunciation. The first wireless transceiver 14 and the second wireless transceiver 24 can use near-field communication technologies such as Bluetooth, WIFI, or NFC to transmit multiple control values for the second sound effect output, but the present invention is not limited thereto. In the process of transmitting multiple control values of the second sound effect pronunciation, it is possible to calculate the transmission time point of the first wireless transceiver of the first sound generation device and the reception time point of the second wireless transceiver of the second sound effect device, thereby synchronizing the two devices The time axis is used to synchronize the time axes of the first sound effect output signal and the second sound effect output signal, so that 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 transmission record for a period of time, the method for transmitting a synchronous control signal in the first embodiment can be used to supplement the synchronous time axis. Therefore, in this embodiment, the first sound effect output with the same time axis can be output by the first speaker module 13 and the second speaker module 23 by mainly transmitting multiple control values of the second sound effect pronunciation and supplemented by synchronous control signals. signal and the second sound effect output signal.

Second Embodiment of the Present Invention Please refer to FIG. 4 , which is a flow chart of the steps of the second embodiment of the method for synchronizing the time axes of multi-source sounds according to the present invention.

Firstly, in order to control the time axis of the multi-channel audio output, the first sound producing device 10 proceeds to step S401: the first sound effect value module generates a first sound effect sound output multiple control values and a second sound effect sound output multiple control values.

As described in the first embodiment, the plurality of control values for the first sound effect output and the plurality of control values for the second sound effect output may be the same value or different values. Now the first sound effect value module 12 produces a plurality of control values for a first sound effect pronunciation and a plurality of control values for a second sound effect pronunciation, and transmits the second sound effect pronunciation multiple control values through the first wireless transceiver 14 of the first sound effect device 10 A control value is sent to the second wireless transceiver 24 of the second sounding device 20.

Therefore, the second sound producing device 20 may execute step S402: the second sound effect generating module acquires a plurality of control values for the second sound effect sound production.

At this time, the second sound effect value module 22 of the second sound effect device 20 receives a plurality of control values for the second sound effect utterance, and provides them to the second sound effect value module 12 .

If there is no transmission record of multiple control values issued by the second sound effect for a period of time, the method for transmitting a synchronous control signal in the first embodiment can be used to supplement the synchronous time axis. The first pronunciation device 10 can proceed to step S403: the synchronization module generates a synchronous control signal, S405: the first sound effect value module generates a first sound effect and pronounces a plurality of control values through the synchronization control signal, and the second pronunciation device 20 proceeds to step S404: the second The second sound effect numerical module obtains the synchronous control signal. S406: The second sound effect numerical module generates a second sound effect and pronounces a plurality of control numerical values through the synchronous control signal.

Since steps S403 to S406 are the same as steps S301 to S304, details are not repeated here.

It should be noted that the first sound emitting device 10 and the second sound emitting device 20 may perform step S407 and step S408 directly after step S402, or may perform step S406 afterward. Therefore, then the first sound producing device 10 and the second sound producing device 20 respectively perform step S407: the first sound effect generating module produces a first sound effect output signal through the first sound effect producing a plurality of control values; S408: the second sound effect generating module passes the second Pronunciation of multiple control values by sound effects to generate a second sound effect output signal. S409: Output the first sound effect output signal. S410: Output the second sound effect output signal.

Since step S407 to step S410 are the same as step S305 to step S308, details are not repeated here.

In the third embodiment of the present invention, a stereophonic design method for multi-source sounding with synchronous time axes by transmitting synchronous control signals is described. This embodiment provides a stereo configuration mode through the sound effect generation module. The first sound effect generation module 11 and the second sound effect generation module 21 have a preset stereo configuration processing method for their channels. 12 and the sound effects of the second sound effect value module 22 produce multiple control values, and then process and generate sounds of different channels. Therefore, in this 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 includes at least a first stereo output signal, and the second sound effect output signal generated by the second sound effect generating module 21 includes at least a second stereo output signal. A 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 synchronizing the time axis, 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 0.0000001 seconds ≤ m ≤ 0.3 seconds. In addition, the gain value of the first stereo output signal output by the first speaker module 13 may also be smaller than the gain value of the second stereo output signal output by the second speaker module 23 . Therefore, the user will first hear the second sound effect output signal of the second speaker module 23 and then hear the first sound effect output signal of the first speaker module 13, just as the sound source moves from the position of the second speaker module 23 The position to the first speaker module 13 is general.

Third Embodiment of the Present Invention Please refer to FIG. 5 , which is a flow chart of the steps of the third embodiment of the method for designing stereo sound from multiple sound sources according to the present invention.

First, to control the time axis of the multi-channel audio output, the first sound producing device 10 proceeds to step S501: the synchronization module generates a synchronous control signal, and the second sound producing device 20 then performs step S502: the second sound effect value module obtains the synchronous control signal. Subsequent first sound effect device 10 and second sound sound device 20 will then proceed to step S503 respectively: the first sound effect numerical module generates a first sound effect and pronounces multiple control values through the synchronous control signal; step S504: the second sound effect numerical module passes synchronous control The signal generates a second sound effect to pronounce a plurality of control values. The plurality of control values for the first sound effect pronunciation and the plurality of control values for the second sound effect pronunciation may be the same value or different values.

Since step S501 to step S504 are the same as step S301 to step S304, details are not repeated here.

Then proceed to step S505: the first sound effect generating module that has preset the first channel stereo configuration method generates a first sound effect output signal including a first stereo sound output signal through the first sound effect pronunciation of a plurality of control values and steps S506: The second sound effect generating module having preset the second channel stereo configuration method generates a second sound effect output signal including a second stereo sound output signal by uttering a plurality of control values through the second sound effect.

If the multiple control values of the first sound effect pronunciation and the multiple control values of the second sound effect pronunciation are the same, it means that the multiple control values of the first sound effect pronunciation and the multiple control values of the second sound effect pronunciation contain the signal coding information of all channels, so that the generated Audio programs are more flexible. In this embodiment, the first sound effect generation module 11, which has preset the stereo configuration method of the first channel, receives the first sound effect and pronounces a plurality of control values, and calculates and generates the output signal including the first stereo sound according to the channel number. The first sound effect output signal. Similarly, the second sound effect generation module 21, which has preset the second channel stereo configuration method, receives the second sound effect to pronounce a plurality of control values, and calculates and generates the second sound effect including the second stereo output signal according to its channel number output signal.

If the plurality of control values for the first sound effect pronunciation and the plurality of control values for the second sound effect pronunciation are different, it means that the plurality of control values for the first sound effect pronunciation and the plurality of control values for the second sound effect pronunciation each only contain the signal encoding information of the corresponding channel, Make programs that generate audio faster and more efficient. In this embodiment, the first sound effect generation module 11, which has preset the first channel stereo configuration method, can directly calculate and generate the first sound effect including the first stereo sound The first sound effect output signal of the output signal. Similarly, the second sound effect generating module 21, which has preset the second channel stereo configuration method, can directly calculate and generate the output signal including the second stereo sound output signal after receiving the second sound effect of the exclusive second channel and pronouncing a plurality of control values. The second sound effect output signal.

The first stereo output signal and the second stereo output signal are designed as corresponding stereo output signals. And the first sound effect generating module 11 and the second sound effect generating module 21 have preset configuration audio processing methods for their respective channels, so the generated first sound effect output signal and the second sound effect output signal will have different channels difference in sound.

Finally, step S507 is performed: outputting the second audio output signal including the second stereo output signal and step S508 : outputting the first audio output signal including the first stereo output signal.

After synchronizing the time axis, 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, wherein 0.0000001 seconds≤m≤0.3 seconds, Therefore, the user will first hear the second stereo output signal of the second speaker module 23 and then hear the first stereo output signal of the first speaker module 13 , but the present invention is not limited thereto.

The fourth embodiment of the present invention and the third embodiment are both described as a stereophonic design method for multiple sound sources that transmit synchronous control signals to synchronize the time axes. The difference is that in the fourth embodiment, the multiple control values of the sound effect pronunciation produced by the sound effect numerical module provide a stereo configuration mode, and the first sound effect pronunciation produced by the first sound effect numerical module 12 includes the first channel stereo sound in the multiple control values Configuration code, the second sound effect output generated by the second sound effect value module 22 includes a second sound channel stereo configuration code among the multiple control values, and the stereo configuration code represents the corresponding stereo configuration mode of the corresponding channel. Likewise, the multiple control values for the first sound effect and the second sound effect can be the same value or different values. Therefore, in this 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 flow chart of the steps of the fourth embodiment of the method for designing stereo sounds from multiple sound sources according to the present invention.

Compared with the third embodiment shown in FIG. 5 , the fourth embodiment is different from step S603 to step S606 from step S503 to step S506 , and other steps are the same. Therefore, step S603 is executed after step S601 and step S602: the first sound effect value module generates a plurality of control values for the first sound effect including the stereo configuration value through the synchronous control signal, and step S604: the second sound effect value module passes the synchronous control signal Generates a second sound effect including stereo configuration values to pronounce a plurality of control values.

The difference from step S503 and step S504 lies in that the multiple control values for the first sound effect pronunciation and the multiple control values for the second sound effect pronunciation already include the stereo configuration value. Therefore, the follow-up can be carried out in step S605: the first sound effect generating module generates a first sound effect output signal including a first stereo sound output signal through the first sound effect pronunciation including a stereo configuration value, and step S606: the second The sound effect generating module generates a second sound effect output signal including a second stereo sound output signal by uttering a plurality of control values through the second sound effect including the stereo configuration value.

If the multiple control values of the first sound effect pronunciation and the multiple control values of the second sound effect pronunciation are the same, it means that the multiple control values of the first sound effect pronunciation and the multiple control values of the second sound effect pronunciation contain the signal coding information of all channels, so that the generated Audio programs are more flexible. In this embodiment, after the first sound effect generation module 11 receives the first sound effect pronunciation multiple control values including the stereo configuration value, it calculates the first sound effect pronunciation multiple control value pair corresponding to the first sound effect pronunciation according to its channel number. One-channel stereo configuration parameters to generate the first audio output signal including the first stereo output signal. Similarly, after the second sound effect generating module 21 receives a plurality of control values of the second sound effect pronunciation including the stereo configuration value, it calculates the second sound channel corresponding to the pairing of the plurality of control values of the second sound effect pronunciation according to its channel number Stereo configuration parameters for generating a second audio output signal including a second stereo output signal.

If the plurality of control values for the first sound effect pronunciation and the plurality of control values for the second sound effect pronunciation are different, it means that the plurality of control values for the first sound effect pronunciation and the plurality of control values for the second sound effect pronunciation each only contain the signal coding information of the corresponding channel, Make programs that generate audio faster and more efficient. In this embodiment, after the first sound effect generation module 11 receives a plurality of control values of the first sound effect output including the first stereo configuration value dedicated to the first channel, it can directly calculate and generate the first stereo output signal including the first stereo sound output signal. an audio output signal. Similarly, after the second sound effect generation module 21 receives a plurality of control values for the second sound effect output including the second stereo configuration value of the dedicated second channel, it can directly calculate and generate the second sound effect output including the second stereo output signal Signal.

In this way, each channel can generate a corresponding first audio output signal including the first stereo output signal and a second audio output signal including the second stereo output signal. Finally, in step S607 and step S608, the first audio output signal including the first stereo output signal and the second audio output signal including the second stereo output signal are finally output.

In the fifth embodiment of the present invention, a stereophonic design method for producing sounds from multiple sound sources, which mainly utilizes transmitting sound effects to produce multiple control values, and secondarily utilizes transmitting synchronous control signals to synchronize the time axis, is described. This embodiment provides a stereo configuration mode through the sound effect generation module. The first sound effect generation module 11 and the second sound effect generation module 21 have a preset stereo configuration processing method for the channels to which they belong. After the sound effect produces multiple control values , each processing the sound of different channels. Therefore, in this 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 includes at least a first stereo output signal, and the second sound effect output signal generated by the second sound effect generating module 21 includes at least a second stereo output signal. A 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 synchronizing the time axis, the user will first hear the second audio output signal of the second speaker module 23 and then hear the first audio output signal of the first speaker module 13, that is, It is as if the sound source moves from the position of the second speaker module 23 to the position of the first speaker module 13 .

Fifth Embodiment of the Present Invention Please refer to FIG. 7 , which is a flow chart of the steps of the fifth embodiment of the method for designing stereo sound from multiple sound sources according to the present invention.

Firstly, to control the time axis of the multi-channel audio output, the first sound producing device 10 proceeds to step S701: the first sound effect value module generates a first sound effect sound output multiple control values and a second sound effect sound output multiple control values. The plurality of control values for the first sound effect pronunciation and the plurality of control values for the second sound effect pronunciation may be the same value or different values. The second sound producing device 20 may execute step S702: the second sound effect generating module acquires a plurality of control values for the second sound effect sound production.

Since step S701 to step S702 are the same as step S401 to step S402, details are not repeated here.

If there is no transmission record of the second sound effect uttering multiple control values for a period of time, the method of transmitting synchronous control signals can be used to supplement the synchronous time axis. The first pronunciation device 10 can proceed to step S703: the synchronous module generates a synchronous control signal, S705: the first sound effect value module generates a first sound effect and pronounces a plurality of control values through the synchronous control signal, and the second pronunciation device 20 proceeds to step S704: the second The second sound effect numerical module obtains the synchronous control signal. S706: The second sound effect numerical module generates a second sound effect and pronounces a plurality of control numerical values through the synchronous control signal.

Since steps S703 to S706 are the same as steps S501 to S504, details are not repeated here.

It should be noted that the first sound emitting device 10 and the second sound emitting device 20 may perform step S707 and step S708 directly after step S702, or may perform step S706 afterward. Therefore, then the first sound producing device 10 and the second sound producing device 20 respectively perform step S707: the first sound effect generating module, which has preset the stereophonic configuration method of the first channel, produces a plurality of control values through the first sound effect sound generation including a first sound effect The first sound effect output signal of a stereo sound output signal, S708: the second sound effect generation module with a preset second channel stereo configuration method, generates a plurality of control values through the second sound effect pronunciation including a second stereo sound output A second sound effect output signal of the signal. S709: Output a second sound effect output signal including the second stereo output signal. S710: Output a first sound effect output signal including the first stereo output signal.

Since step S707 to step S710 are the same as step S505 to step S508, details are not repeated here.

The sixth embodiment of the present invention and the fifth embodiment are also described as a stereophonic design method for multi-source sounding by transmitting multiple control values with the same sound effect and secondly by transmitting synchronous control signals to synchronize the time axis. The difference is that in the sixth embodiment, the multiple control values for sound effect pronunciation generated by the sound effect value module 12 provide a stereo configuration mode, and the first sound effect value generated by the first sound effect value module 12 includes the first channel stereo sound in the multiple control values. Configuration code, the second sound effect output generated by the second sound effect value module 22 includes a second sound channel stereo configuration code among the multiple control values, and the stereo configuration code represents the corresponding stereo configuration mode of the corresponding channel. Likewise, the multiple control values for the first sound effect and the second sound effect can be the same value or different values. Therefore, in this 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 flow chart of the steps of the sixth embodiment of the method for designing stereo sound from multiple sound sources according to the present invention.

Compared with the fifth embodiment shown in FIG. 7 , the sixth embodiment is only different from steps S705 to S708 in steps S805 to S808 , and the other steps are the same. Therefore, first, step S801 will be performed: the first sound effect numerical module generates a first sound effect to pronounce a plurality of control values and a second sound effect to pronounce a plurality of control values and step S802: the second sound effect generating module obtains a second sound effect to pronounce a plurality of control values .

Since step S801 to step S802 are the same as step S401 to step S402, details are not repeated here.

After step S801 and step S802, if there is no transmission record of multiple control values pronounced by the second sound effect for a period of time, the method of transmitting synchronous control signals can be used to supplement the synchronous time axis. The first pronunciation device 10 can perform step S803: the synchronization module generates a synchronous control signal, S805: the first sound effect value module generates a plurality of control values for the first sound effect pronunciation including the stereo configuration value through the synchronization control signal, and the second pronunciation device 20. Go to step S804: the second sound effect value module obtains the synchronous control signal. S806: the second sound effect value module generates a plurality of second sound effect pronunciation control values including the stereo configuration value through the synchronous control signal.

Since steps S803 to S806 are the same as steps S601 to S604, details are not repeated here.

It should be noted that the first sound emitting device 10 and the second sound emitting device 20 may perform step S807 and step S808 directly after step S801 and step S802, or may execute step S806 afterward. Therefore, then the first sound producing device 10 and the second sound producing device 20 will execute step S807: the first sound effect generating module will produce a plurality of control values through the first sound effect comprising a stereo configuration value, and generate a first sound output signal comprising a first stereo sound. The first sound effect output signal, step S808: the second sound effect generating module pronounces a plurality of control values through the second sound effect including the stereo configuration value, and generates a second sound effect output signal including a second stereo sound output signal, step S809: output The second audio output signal including the second stereo output signal, S810: Output the first audio output signal including the first stereo output signal.

Since step S807 to step S810 are the same as step S605 to step S608 , they will not be repeated here.

It should be noted here that the multi-source sound production method of the present invention is not limited to the sequence of steps in the above six embodiments, as long as the purpose of the present invention can be achieved, the above sequence of steps can also be changed.

In another embodiment of the present invention, the first sound emitting device 10 further includes an angle detection module 16 . The angle detection module 16 can be a gyroscope or an angular accelerometer, but the invention is not limited thereto. When the user wears the first sound emitting device 10 , the angle detection module 16 is used to detect the rotation angle or tilt angle of the first sound sound device 10 and the second sound sound device 20 , that is, to detect whether the user's head is turned or tilted. If the user's head is turned or tilted, the first sound effect value module 12 and the second sound effect value module 22 will receive the value returned by the detector as the first sound effect to produce multiple control values or the second sound effect to produce multiple control values. The control value will generate sound effects and pronounce a plurality of control values according to the user's head movement, so that the sound effect of each channel can be pronounced with multiple control values to design the first sound effect output signal and the second sound effect output signal through the rotation angle or the tilt angle. The corresponding stereo output signal of the audio effect output signal. In this way, the user can hear the first sound effect output signal and the second sound effect output signal matched with the head movement. For example, when the user hears the first sound effect output signal and the second sound effect output signal from left to right, when the user's head turns to the left, the first sound effect generating module 11 will adjust the first sound effect output signal and the second sound effect output signal. Two sound effect output signals, so that the user's hearing experience is from front to back.

As can be seen from the above description, according to the above-mentioned embodiment, the first sound emitting device 10 and the second sound emitting device 20 of the true wireless multi-channel speaker device 1 can independently generate sound effect signals for each channel and synchronize the timing of each audio output Axis, output at least the first sound effect output signal and the second sound effect output signal, and the sound effect output signal of each channel will have a difference in time and gain value in the design of the stereo sound output signal, so that the user can get a better hearing effect .

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should all belong to the scope of protection of the appended claims of the present invention.

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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