CN111711888A - Debugging-free digital sound device - Google Patents

Debugging-free digital sound device Download PDF

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Publication number
CN111711888A
CN111711888A CN202010558556.8A CN202010558556A CN111711888A CN 111711888 A CN111711888 A CN 111711888A CN 202010558556 A CN202010558556 A CN 202010558556A CN 111711888 A CN111711888 A CN 111711888A
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China
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digital
component
sound
wireless microphone
digital audio
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CN202010558556.8A
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Chinese (zh)
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金骅泽
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Individual
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Individual
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Priority to CN202010558556.8A priority Critical patent/CN111711888A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • H04R27/04—Electric megaphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/007—Protection circuits for transducers

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

The invention provides a debugging-free digital sound device, which comprises a main control cabinet, wherein the main control cabinet is connected with a loudspeaker assembly; a digital wireless microphone transmitting component, a digital wireless microphone receiving component, a digital audio processing component and a digital power amplifying component are arranged in the main control cabinet; the wireless microphone transmitting component receives the sound signal and transmits the sound signal to the digital wireless microphone receiving component, and the digital wireless microphone receiving component transmits the sound signal to the digital audio processing component; the digital audio processing component is also connected with an external player, and the external player transmits the music signal to the digital audio processing component; the digital audio processing component optimizes and restores the sound signals and the music signals, and then the sound signals and the music signals are subjected to high-fidelity signal amplification through the digital power amplification component and then are transmitted to the loudspeaker component so as to amplify the sound of the sound signals and the music signals. By using the technical scheme of the invention, the sound device has the advantages of no debugging, no screaming, no sound interruption, clear sound, high loudness, quick switching and convenient transportation.

Description

Debugging-free digital sound device
Technical Field
The invention relates to the technical field of sound systems, in particular to a debugging-free digital sound device.
Background
The digital sound box commonly used at present usually needs to be debugged by professional disc-jockey in the use, just can reach good expanding sound effect, and professional disc-jockey talent is in short supply at present. And a city can achieve the debugging level of professional digital sound equipment, and more than a few disc-jockeys, and ordinary users do not know professional frequency characteristics without professional tuning training, and often purchase digital sound equipment but do not achieve ideal use effect. The user does not have professional disc-jockey, and causes in the stereo set use: the method has the following problems of acoustic howling, microphone sound interruption, unclear speaking hearing, damage to acoustic equipment caused by signal overload and the like.
Disclosure of Invention
In order to solve the problem that a sound system cannot be timely and effectively and accurately adjusted in the prior art, the invention provides the debugging-free digital sound device, which can enable the sound device to be free of debugging, free of squeaking, free of sound interruption, clear in sound, high in loudness, fast in switching and convenient to transport.
The specific technical scheme of the invention is as follows:
a debugging-free digital sound device comprises a main control cabinet, wherein the main control cabinet is connected with a loudspeaker assembly; a digital wireless microphone transmitting component, a digital wireless microphone receiving component, a digital audio processing component and a digital power amplifying component are arranged in the main control cabinet; the wireless microphone transmitting component receives a sound signal and transmits the sound signal to the digital wireless microphone receiving component, and the digital wireless microphone receiving component transmits the sound signal to the digital audio processing component; the digital audio processing component is also connected with an external player, and the external player transmits music signals to the digital audio processing component; after the sound signals and the music signals are transmitted to the digital audio processing assembly, the digital audio processing assembly carries out high-fidelity signal amplification on the sound signals and the music signals after the sound signals and the music signals are optimized and restored, and transmits the sound signals and the music signals to the loudspeaker assembly, and the loudspeaker assembly carries out sound amplification on the sound signals and the music signals.
Further, the digital wireless microphone transmitting component converts the audio frequency vibration frequency of the sound signal into a frequency modulation wireless signal, and the digital wireless microphone transmitting component encrypts and transmits the frequency modulation signal to the digital wireless microphone receiving component; the digital wireless microphone receiving component decrypts the encrypted sound signal and converts the encrypted sound signal into an audio signal, and the digital wireless microphone receiving component transmits the audio signal to the digital audio processing component.
Further, the external player is connected to the digital audio processing component through a stereo audio connection line or wireless Bluetooth.
Furthermore, the digital audio processing assembly comprises a digital audio processing chip and an operation panel, and the digital audio processing chip optimizes and restores the sound signal and the music signal; the operation panel is provided with a plurality of mode switching keys, and the modes comprise a lecture conference mode and an entertainment celebration mode.
Further, the plurality of modes comprise 2 lecture conference modes and 2 entertainment celebration modes; the 2 lecture conference modes include a wireless microphone without reverberation effect and a music input combination for 100 square meters of space and a wireless microphone without reverberation effect and a music input combination for 300 square meters of space; the 2 entertainment celebration modes include a wireless microphone with reverberation effect and a music input combination suitable for a 100 square meter space and a wireless microphone with reverberation effect and a music input combination suitable for a 300 square meter space. Therefore, when the user uses the acoustic device, the mode switching can be quickly switched within 1 second by pressing the mode switching key.
Further, the digital audio processing component optimizes and restores the sound signal and the music signal and transmits the sound signal and the music signal to the digital power amplifying component through a stereo audio connecting line; and the digital power amplification component transmits the sound signal and the music signal amplified by the high-fidelity signal to the loudspeaker component through an audio connecting wire.
Further, the digital wireless microphone transmitting component is a head-wearing digital wireless microphone transmitting component, a gooseneck digital wireless microphone transmitting component or a handheld wireless microphone transmitting component.
Further, the external player comprises a computer, a mobile phone or a music player.
Further, the speaker assembly includes a left speaker assembly and a right speaker assembly. Therefore, the square meter can be used in the scenes of business training, lectures, meetings, roadcast, celebration and the like with the area of about 300 square meters. By extending the system to 4 groups of loudspeaker assemblies, the space with the area of about 600 square meters can be used.
Further, the length, width, height and size of the main control cabinet are respectively 600mm, 525mm and 200 mm; the length, width and height of the left loudspeaker component and the right loudspeaker component are 260mm, 260mm and 440mm respectively. The sound device is small in size, convenient to transport, simple in connection and high in integration level.
By using the technical scheme of the invention, professional sound engineer field debugging is not needed, a user can start using the digital sound system only by connecting the left loudspeaker assembly line and the right loudspeaker assembly line and plugging in a power supply, and the user only needs to control the microphone volume and the music volume in the using process, so that the digital sound system can be operated without training any personnel, and the problems of sound system squeaking, microphone sound breaking, unclear speaking and the like in the using process of the digital sound system caused by the absence of the professional sound engineer are effectively solved. The automatic digital audio processing chip of the debugging-free digital sound device has a feedback suppression function, and sound howling is not generated in the using process after strict tests are carried out before the debugging-free digital sound device is sold on the market (the howling is not generated even if a microphone is used in front of a sound box). The wireless microphone transmitting and receiving component uses a digital pilot anti-interference technology, sound can not be cut off within a distance of 100 meters under the condition that the electric quantity of the microphone is sufficient, and the transmission distance can reach 300 meters without signal shielding. The automatic digital audio processing chip has the function of limited protection, and audio signals are strictly controlled within a safety range, so that the debugging-free digital audio device cannot be damaged due to signal overload.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of the operation of an audio device in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an audio device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In a specific embodiment of the present invention, as shown in fig. 1-2, a debugging-free digital audio device 10 includes a main control cabinet 1, wherein the main control cabinet 1 is connected with a speaker assembly 2; a digital wireless microphone transmitting component 3, a digital wireless microphone receiving component 4, a digital audio processing component 5 and a digital power amplifying component 6 are arranged in the main control cabinet 1; the wireless microphone transmitting component 3 receives a sound signal and transmits the sound signal to the digital wireless microphone receiving component 4, and the digital wireless microphone receiving component 4 transmits the sound signal to the digital audio processing component 5; the digital audio processing component 5 is also connected with an external player 7, and the external player 7 transmits music signals to the digital audio processing component 5; after the sound signals and the music signals are transmitted to the digital audio processing component 5, the digital audio processing component 5 optimizes and restores the sound signals and the music signals, then performs high-fidelity signal amplification through the digital power amplification component 6, and transmits the high-fidelity signal to the loudspeaker component 2, and the loudspeaker component 2 performs sound amplification on the sound signals and the music signals.
In the embodiment of the invention, a digital wireless microphone transmitting component 3 converts the audio frequency vibration frequency of a sound signal into a frequency modulation wireless signal, and the digital wireless microphone transmitting component 3 encrypts and transmits the frequency modulation signal to a digital wireless microphone receiving component 4; the digital wireless microphone receiving component 4 decrypts the encrypted sound signal and converts the decrypted sound signal into an audio signal, and the digital wireless microphone receiving component 4 transmits the audio signal to the digital audio processing component 5.
In the embodiment of the present invention, the external player 7 is connected to the digital audio processing device 5 through a stereo audio connection line 71 or wireless bluetooth. The external player 7 is not limited to a computer, a mobile phone, a music player, or the like.
In the embodiment of the present invention, preferably, the digital audio processing component 5 includes a digital audio processing chip and an operation panel 51, and the digital audio processing chip optimizes and restores the sound signal and the music signal; the operation panel 51 is provided with a plurality of mode switching keys 52, and the plurality of modes include a lecture conference mode and a celebration mode. The plurality of modes preferably comprise 2 lecture conference modes and 2 entertainment celebration modes; the 2 lecture conference modes comprise a first mode and a second mode, wherein the first mode is a mode of combining a wireless microphone without reverberation effect and used in a small space of about 100 square meters with a music input, and the second mode is a mode of combining a wireless microphone without reverberation effect and used in a large space of about 300 square meters with a music input; the 2 entertainment celebration modes comprise a third mode and a fourth mode, wherein the third mode is a mode of combining a wireless microphone with reverberation effect and a music input, which is suitable for small space of about 100 square meters; the fourth mode is a mode in which a wireless microphone with reverberation effect suitable for large space use of about 300 square meters is combined with a music input. Therefore, when the user uses the acoustic device, the user can realize the fast mode switching within 1 second by pressing the corresponding mode switching key. The digital audio processing chip preferably has the functions of digital equalization, feedback suppression, line pressing protection, gain setting, channel distribution and the like so as to effectively avoid sound interruption and howling of the sound equipment; the audio signal is strictly controlled within a safe range, and the debugging-free digital sound device cannot be damaged due to signal overload.
Preferably, the digital audio processing component 5 optimizes and restores the sound signal and the music signal and transmits the sound signal and the music signal to the digital power amplifying component 6 through a stereo audio connecting line; the digital power amplifying assembly 6 transmits the sound signal and the music signal amplified by the high fidelity signal to the loudspeaker assembly 2 through the audio connecting line 61.
Preferably, the digital wireless microphone transmitting assembly 3 may be a head-mounted digital wireless microphone transmitting assembly, a gooseneck digital wireless microphone transmitting assembly, or a handheld wireless microphone transmitting assembly. Wherein digital wireless microphone emission subassembly 3 can place in the inside recess structure that corresponds of main control rack 1 to realize the simple clean and tidy of whole main control rack 1, it is integrated high.
As shown in fig. 2, the speaker assembly 2 preferably includes a left speaker assembly 21 and a right speaker assembly 22. The maximum sound pressure level of the debugging-free digital sound equipment is 125dB, and after testing, one set of debugging-free digital sound equipment is marked and matched with two groups of loudspeaker assemblies, so that the debugging-free digital sound equipment can be used in scenes with the area of about 300 square meters, such as business training, lectures, meetings, roadcast, entertainment celebrations and the like. By extending the system to 4 groups of loudspeaker assemblies, the space with the area of about 600 square meters can be used.
In the embodiment of the invention, the length, width, height and size of the main control cabinet 1 are respectively 600mm, 525mm and 200 mm; the length, width and height of the left speaker assembly 21 and the right speaker assembly 22 are 260mm, 260mm and 440mm, respectively. The audio device 10 is compact in size, convenient to transport, simple to connect and high in integration level. The digital audio processing component, the digital audio processing chip and the digital power amplifying component can be arranged in a 1U standard case, so that the high integration of the whole device is further improved.
By using the technical scheme of the invention, a professional sound engineer is not needed to carry out field debugging, a user can start using the digital wireless microphone only by connecting the left loudspeaker assembly line and the right loudspeaker assembly line and plugging in a power supply, and the user only needs to control the volume of the digital wireless microphone transmitting assembly and the volume of music without training any personnel in the using process, so that the problems of sound howling, microphone sound interruption, unclear speaking and the like in the using process of the digital sound caused by the absence of the professional sound engineer by the user can be effectively solved. The automatic digital audio processing chip of the debugging-free digital sound device has a feedback suppression function, and sound howling cannot be generated in the using process through strict tests (the howling cannot be generated even if the microphone is used in front of the sound box). The wireless microphone transmitting component 3 and the wireless microphone receiving component 4 both use digital pilot frequency anti-interference technology, under the condition that the electric quantity of the wireless microphone transmitting component is sufficient, sound can not be cut off within a distance of 100 meters, and the transmission distance can reach 300 meters sound without shielding signals. The automatic digital audio processing chip has a limit protection function, and audio signals are strictly controlled within a safety range, so that the debugging-free digital sound device cannot be damaged due to signal overload.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a debugging-free digital sound device, includes the main control rack, its characterized in that: the main control cabinet is connected with a loudspeaker assembly; a digital wireless microphone transmitting component, a digital wireless microphone receiving component, a digital audio processing component and a digital power amplifying component are arranged in the main control cabinet;
the wireless microphone transmitting component receives a sound signal and transmits the sound signal to the digital wireless microphone receiving component, and the digital wireless microphone receiving component transmits the sound signal to the digital audio processing component;
the digital audio processing component is also connected with an external player, and the external player transmits music signals to the digital audio processing component;
after the sound signals and the music signals are transmitted to the digital audio processing assembly, the digital audio processing assembly carries out high-fidelity signal amplification on the sound signals and the music signals after the sound signals and the music signals are optimized and restored, and transmits the sound signals and the music signals to the loudspeaker assembly, and the loudspeaker assembly carries out sound amplification on the sound signals and the music signals.
2. The debug-free digital audio device of claim 1, wherein: the digital wireless microphone transmitting component converts the audio frequency vibration frequency of a sound signal into a frequency modulation wireless signal, and encrypts and transmits the frequency modulation signal to the digital wireless microphone receiving component;
the digital wireless microphone receiving component decrypts the encrypted sound signal and converts the encrypted sound signal into an audio signal, and the digital wireless microphone receiving component transmits the audio signal to the digital audio processing component.
3. The debug-free digital audio device of claim 1, wherein: the external player is connected to the digital audio processing component through a stereo audio connecting wire or wireless Bluetooth.
4. The debug-free digital audio device according to any one of claims 1 to 3, wherein: the digital audio processing assembly comprises a digital audio processing chip and an operation panel, and the digital audio processing chip optimizes and restores the sound signal and the music signal; the operation panel is provided with a plurality of mode switching keys, and the modes comprise a lecture conference mode and an entertainment celebration mode.
5. The debug-free digital audio device of claim 4, wherein: the plurality of modes comprise 2 lecture conference modes and 2 entertainment celebration modes; the 2 lecture conference modes include a wireless microphone without reverberation effect and a music input combination for 100 square meters of space and a wireless microphone without reverberation effect and a music input combination for 300 square meters of space; the 2 entertainment celebration modes include a wireless microphone with reverberation effect and a music input combination suitable for a 100 square meter space and a wireless microphone with reverberation effect and a music input combination suitable for a 300 square meter space.
6. The debug-free digital audio device of claim 5, wherein: the digital audio processing component optimizes and restores the sound signal and the music signal and transmits the sound signal and the music signal to the digital power amplifying component through a stereo audio connecting line; and the digital power amplification component transmits the sound signal and the music signal amplified by the high-fidelity signal to the loudspeaker component through an audio connecting wire.
7. The debug-free digital audio device of claim 6, wherein: the digital wireless microphone transmitting component is a head-wearing digital wireless microphone transmitting component, a gooseneck digital wireless microphone transmitting component or a handheld wireless microphone transmitting component.
8. The debug-free digital audio device of claim 7, wherein: the external player comprises a computer, a mobile phone or a music player.
9. The debug-free digital audio device of claim 8, wherein: the speaker assembly includes a left speaker assembly and a right speaker assembly.
10. The debug-free digital audio device of claim 9, wherein: the length, width and height of the main control cabinet are respectively 600mm, 525mm and 200 mm; the length, width and height of the left loudspeaker component and the right loudspeaker component are 260mm, 260mm and 440mm respectively.
CN202010558556.8A 2020-06-18 2020-06-18 Debugging-free digital sound device Pending CN111711888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010558556.8A CN111711888A (en) 2020-06-18 2020-06-18 Debugging-free digital sound device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010558556.8A CN111711888A (en) 2020-06-18 2020-06-18 Debugging-free digital sound device

Publications (1)

Publication Number Publication Date
CN111711888A true CN111711888A (en) 2020-09-25

Family

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Application Number Title Priority Date Filing Date
CN202010558556.8A Pending CN111711888A (en) 2020-06-18 2020-06-18 Debugging-free digital sound device

Country Status (1)

Country Link
CN (1) CN111711888A (en)

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