A musical instrument pickup system for live webcasting

Abstract

The present invention discloses a musical instrument pickup system for live streaming, which relates to the technical field of pickup systems. The system solves the problems of inconvenience in recording sound sources from different locations, poor recording quality, and inconvenience in conducting live streaming activities. Its technical key points are: it includes a DSP module, a sound receiving module, an output module, a power supply module, and a control module. The sound receiving module includes a built-in microphone circuit, an external microphone circuit, and a sensor input circuit. The output module includes a digital-to-analog converter, a mobile phone live streaming connection circuit, a pre-stage audio output circuit, and a headphone output circuit. It can respectively utilize the built-in electret microphone, the external microphone, and the pickup to collect audio signals from different locations, thereby recording clearer sound and improving the recording quality. This system achieves the advantages of being able to conveniently record sound sources from different locations and having better recording quality. It has good commercial application prospects and can bring greater convenience to people's entertainment life.

Description

Technical Field

[0001] The present invention relates to the technical field of sound pickup systems, and in particular to a musical instrument sound pickup system for live network broadcasting. Background Art

[0002] With the rapid development of the internet, live streaming has gradually become a popular form of entertainment, with more and more live streamers showcasing their talents, such as guitar playing, to their audiences. Currently, most live streamers prefer to use their mobile phones to record both guitar and vocals using their built-in microphones. While mobile phones are small and portable, they cannot capture sound sources from specific locations during live streams, and recording quality is poor, significantly inconvenient.

[0003] For example, when a host is demonstrating their guitar skills, they need to move the guitar next to their phone so that the phone can clearly pick up the sound. When they're singing, they need to move both the guitar and their mouth next to the phone, which can be inconvenient for their performance and severely limits their range of movement, significantly impacting the interactive effect during the live broadcast. Therefore, existing technologies have problems with live broadcast equipment: it's difficult to record sound sources from different locations, resulting in poor recording quality and inconvenience for live broadcasts. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a musical instrument pickup system for live broadcasting on the Internet, which has the advantages of being able to conveniently record sound sources at different locations, having good recording effects and being convenient for live broadcasting activities.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A musical instrument pickup system for live streaming on the Internet comprises a DSP module, a sound receiving module, an output module and a power module, wherein the power module is electrically connected to the DSP module, the sound receiving module comprises a built-in microphone circuit, an external microphone circuit and a sensor input circuit, wherein the built-in microphone circuit, the external microphone circuit and the sensor input circuit are respectively electrically connected to the DSP module, the built-in microphone circuit is provided with an electret microphone electrically connected thereto, the external microphone circuit is provided with an external microphone input socket, and the sensor input circuit is provided with a pickup input interface, the output module comprises a digital-to-analog converter, a mobile phone live streaming connection circuit, a pre-stage audio output circuit and a headphone output circuit, wherein the digital-to-analog converter and the headphone output circuit are respectively electrically connected to the DSP module, the mobile phone live streaming connection circuit and the pre-stage audio output circuit are respectively electrically connected to the digital-to-analog converter, the mobile phone live streaming connection circuit is provided with a mobile phone connection port, the pre-stage audio output circuit is provided with a power amplifier output interface, and the headphone output circuit is provided with a headphone output interface.

[0007] As a further improvement of the present invention: it also includes a control module, the control module is electrically connected to the DSP module, and the DSP module is electrically connected to the USB connection module.

[0008] As a further improvement of the present invention: the control module is electrically connected to a key input circuit.

[0009] As a further improvement of the present invention: the DSP module is electrically connected to a TF card connection module.

[0010] As a further improvement of the present invention: the DSP module is electrically connected to a Bluetooth connection module.

[0011] As a further improvement of the present invention: the built-in microphone circuit is electrically connected to the DSP module through the external microphone circuit. When the external microphone input socket is connected to the external microphone, the external microphone circuit blocks the built-in microphone circuit from transmitting signals to the DSP module.

[0012] As a further improvement of the present invention: the power supply module includes a lithium battery unit, a charging circuit, a 5V boost circuit, a 12V boost circuit and a 3.3V voltage stabilization circuit; the lithium battery unit is electrically connected to the charging circuit, the 5V boost circuit, the 12V boost circuit and the 3.3V voltage stabilization circuit; the 12V boost circuit is electrically connected to the sensor input circuit; the 5V boost circuit is electrically connected to the built-in microphone circuit, the digital-to-analog converter and the control module respectively; and the 3.3V voltage stabilization circuit is electrically connected to the DSP module.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The built-in electret microphone collects audio signals, which are then transmitted to the DSP module via the built-in microphone circuit, enabling the function of recording sound through the electret microphone. The external microphone input socket is connected to an external microphone, allowing the external microphone to collect audio signals, and the external microphone circuit transmits the audio signals collected by the external microphone to the DSP module, enabling the function of recording sound through the external microphone. The pickup input interface is electrically connected to the pickup installed on the instrument, allowing the pickup to collect audio signals, and the sensor input circuit transmits the audio signals collected by the pickup to the DSP module, enabling the function of recording sound through the pickup.

[0015] The mobile phone connection port is used to connect a mobile phone. The DSP module transmits the audio signal to the digital-to-analog converter. After the audio signal is processed by the digital-to-analog converter, the audio signal is transmitted to the mobile phone connection port through the mobile phone live broadcast connection circuit. The audio signal is transmitted to the mobile phone through the mobile phone connection port. In this way, the sound pickup system can collect sound during the live broadcast using the mobile phone, and the collected sound is converted into an audio signal and transmitted to the mobile phone, so that the audience watching the live broadcast can hear the sound collected by the sound pickup system, thereby achieving the effect of facilitating live broadcast activities.

[0016] The headphone output interface is used to connect headphones. The DSP module transmits the audio signal to the headphone output interface through the headphone output circuit, and then transmits the audio signal to the headphones through the headphone output interface, so that the audio signal output by the DSP module can be played through the headphones, realizing the function of outputting the audio signal. During the live broadcast, the host wearing headphones connected to the headphone output interface can directly hear the sound output by the sound pickup system, which is convenient for the host to audition and can avoid re-recording the sound emitted during the audition process, thereby improving the recording effect and facilitating the live broadcast.

[0017] The power amplifier output interface is used to connect the power amplifier. The DSP module transmits the audio signal to the digital-to-analog converter. After the audio signal is processed by the digital-to-analog converter, the audio signal is transmitted to the power amplifier output interface through the pre-stage audio output circuit. The audio signal is transmitted to the power amplifier through the power amplifier output interface, so that the audio signal output by the DSP module can be played through the power amplifier when needed, which facilitates live broadcast.

[0018] This sound pickup system can collect audio signals from different locations through a built-in electret microphone, an external microphone connected to the external microphone input socket, and a pickup connected to the pickup input interface. This makes it easy to collect the sounds of musical instruments and the host during live broadcasts. The sound pickup component can be placed closer to the sound source, thereby recording clearer sound and improving the recording quality. This system can easily collect sound sources from different locations and achieves better recording quality. It has good commercial application prospects and can bring greater convenience to people's entertainment life.

[0019] The USB connection module is connected to an external USB memory, so that the control module can control the DSP module to write the audio signal to the external USB memory, thereby quickly storing the audio in the USB memory, making it convenient to use. The control module can also control the DSP module to play the audio data preset in the USB memory, so that the accompaniment audio data preset in the USB memory can be used to play the accompaniment.

[0020] By connecting to the TF card storage through the TF card connection module, the control module can control the DSP module to write the audio signal to the TF card storage, thereby quickly storing the audio in the TF card storage, making it convenient to use. The control module can also control the DSP module to play the audio data preset in the TF card, thereby realizing the function of playing accompaniment by presetting the accompaniment audio data in the TF card.

[0021] By connecting the Bluetooth connection module to an external Bluetooth module, the control module can control the DSP module to transmit the audio signal to the external Bluetooth module, and then the recorded audio signal can be quickly transmitted through the Bluetooth connection module, which is convenient to use.

[0022] When an external microphone is electrically connected to the external microphone input, the external microphone circuit electrically connects to the external microphone and blocks the internal microphone circuit from transmitting audio signals to the DSP module. When the user does not need to use an external microphone for recording, the internal microphone circuit can transmit audio signals to the DSP module, enabling recording via the built-in electret microphone. When the user does need to use an external microphone for recording, the internal microphone circuit is blocked from transmitting audio signals to the DSP module, preventing the electret microphone from affecting the recorded sound quality and quality, thereby improving recording quality and facilitating recording.

[0023] The charging circuit charges the lithium-ion battery cells, storing electrical energy in them. The lithium-ion battery cells power the 12V boost circuit, the 5V boost circuit, and the 3.3V voltage regulator circuit. The 12V boost circuit raises the voltage to 12V, which powers the sensor input circuit. The 5V boost circuit raises the voltage to 5V, which powers the built-in microphone circuit, digital-to-analog converter, and control module. The 3.3V voltage regulator circuit powers the DSP module. These 12V boost circuit, the 5V boost circuit, and the 3.3V voltage regulator circuit ensure stable operation of the instrument pickup system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the connection structure of this embodiment;

[0025] Figure 2 Schematic diagram of the connection structure of the power module in this embodiment;

[0026] Figure 3 Schematic diagram of the circuit connection of the DSP module in this embodiment;

[0027] Figure 4 Schematic diagram of the circuit connection of the input module in this embodiment;

[0028] Figure 5This is a circuit connection diagram of the digital-to-analog converter, mobile phone live broadcast connection circuit, and pre-stage audio output circuit in this embodiment;

[0029] Figure 6 Schematic diagram of the circuit connection of the headphone output circuit in this embodiment;

[0030] Figure 7 Schematic diagram of circuit connection of the control module in this embodiment;

[0031] Figure 8 Schematic diagram of the circuit connection of the key circuit in this embodiment;

[0032] Figure 9 Schematic diagram of the circuit connection of the power module in this embodiment.

[0033] Figure numerals: 11, DSP module; 12, control module; 13, Bluetooth connection module; 14, USB connection module; 15, TF card connection module; 16, key input circuit; 21, radio module; 22, built-in microphone circuit; 23, electret microphone; 24, external microphone circuit; 25, external microphone input socket; 26, sensor input circuit; 27, pickup input interface; 31, output module; 32, digital-to-analog converter; 33, mobile phone live broadcast connection circuit; 34, mobile phone connection port; 35, pre-stage audio output circuit; 36, power amplifier output interface; 37, headphone output circuit; 38, headphone output interface; 41, power module; 42, charging circuit; 43, lithium battery unit; 44, 12V boost circuit; 45, 5V boost circuit; 46, 3.3V voltage regulator circuit. DETAILED DESCRIPTION

[0034] The present invention will now be further described with reference to the accompanying drawings and embodiments:

[0035] Example:

[0036] A musical instrument pickup system for live webcasting, such as Figures 1 to 9As shown, it includes a DSP module 11, a radio module 21, an output module 31 and a power module 41. The power module 41 is electrically connected to the DSP module 11. The radio module 21 includes a built-in microphone circuit 22, an external microphone circuit 24 and a sensor input circuit 26. The built-in microphone circuit 22, the external microphone circuit 24 and the sensor input circuit 26 are electrically connected to the DSP module 11 respectively. The built-in microphone circuit 22 is provided with an electret microphone 23 electrically connected thereto. The external microphone circuit 24 is provided with an external microphone input socket 25. The sensor input circuit 26 A pickup input interface 27 is provided, and the output module 31 includes a digital-to-analog converter 32, a mobile phone live broadcast connection circuit 33, a pre-stage audio output circuit 35 and a headphone output circuit 37. The digital-to-analog converter 32 and the headphone output circuit 37 are electrically connected to the DSP module 11 respectively, and the mobile phone live broadcast connection circuit 33 and the pre-stage audio output circuit 35 are electrically connected to the digital-to-analog converter 32 respectively. The mobile phone live broadcast connection circuit 33 is provided with a mobile phone connection port 34, the pre-stage audio output circuit 35 is provided with an amplifier output interface 36, and the headphone output circuit 37 is provided with a headphone output interface 38.

[0037] The system further includes a control module 12 , which is electrically connected to the DSP module 11 , and the DSP module 11 is electrically connected to the USB connection module 14 .

[0038] The control module 12 is electrically connected to a key input circuit 16 . The key input circuit 16 is provided with a button. By pressing the button, a control instruction is sent to the control module 12 , thereby realizing control of the control module 12 .

[0039] The DSP module 11 is electrically connected to the TF card connection module 15 .

[0040] The DSP module 11 is electrically connected to the Bluetooth connection module 13 .

[0041] The built-in microphone circuit 22 is electrically connected to the DSP module 11 through the external microphone circuit 24 . When the external microphone input socket 25 is connected to the external microphone, the external microphone circuit 24 blocks the built-in microphone circuit 22 from transmitting signals to the DSP module 11 .

[0042] The power module 41 includes a lithium battery unit 43, a charging circuit 42, a 5V boost circuit 45, a 12V boost circuit 44 and a 3.3V voltage regulator circuit 46. The lithium battery unit 43 is electrically connected to the charging circuit 42, the 5V boost circuit 45, the 12V boost circuit 44 and the 3.3V voltage regulator circuit 46. The 12V boost circuit 44 is electrically connected to the sensor input circuit 26. The 5V boost circuit 45 is electrically connected to the built-in microphone circuit 22, the digital-to-analog converter 32 and the control module 12 respectively. The 3.3V voltage regulator circuit 46 is electrically connected to the DSP module 11.

[0043] Charging circuit 42 charges lithium battery unit 43, storing electrical energy in the lithium battery. Lithium battery unit 43 supplies power to 12V boost circuit 44, 5V boost circuit 45, and 3.3V voltage regulator circuit 46. The 12V boost circuit 44 boosts the voltage to 12V, which then powers sensor input circuit 26. The 5V boost circuit 45 boosts the voltage to 5V, which then powers built-in microphone circuit 22, digital-to-analog converter 32, and control module 12. The 3.3V voltage regulator circuit 46 supplies power to DSP module 11.

[0044] This embodiment has the following advantages:

[0045] The sound is collected by the sound receiving module 21, converted into an audio signal and sent to the DSP module 11. After being processed by the DSP module 11, the audio signal is transmitted to the output module 31, and the audio signal is output through the output module 31, thereby realizing the function of collecting sound.

[0046] The built-in electret microphone 23 collects audio signals, which are then transmitted to the DSP module 11 via the built-in microphone circuit 22, thereby enabling the electret microphone 23 to record sound. The external microphone input socket 25 is connected to an external microphone, enabling the external microphone to collect audio signals, and the external microphone circuit 24 transmits the audio signals collected by the external microphone to the DSP module 11, thereby enabling the external microphone to record sound. The pickup input interface 27 is electrically connected to a pickup installed on a musical instrument, enabling the pickup to collect audio signals, and the sensor input circuit 26 transmits the audio signals collected by the pickup to the DSP module 11, thereby enabling the pickup to record sound.

[0047] The mobile phone connection port 34 is used to connect a mobile phone. The DSP module 11 transmits the audio signal to the digital-to-analog converter 32. After the audio signal is processed by the digital-to-analog converter 32, the audio signal is transmitted to the mobile phone connection port 34 through the mobile phone live broadcast connection circuit 33. The audio signal is transmitted to the mobile phone through the mobile phone connection port 34, so that the sound can be collected by the sound pickup system during the live broadcast using the mobile phone, and the collected sound is converted into an audio signal and transmitted to the mobile phone, so that the audience watching the live broadcast can hear the sound collected by the sound pickup system, and the sound has high sound quality, which makes it convenient to conduct live broadcast activities.

[0048] The headphone output interface 38 is used to connect headphones. The DSP module 11 transmits the audio signal to the headphone output interface 38 via the headphone output circuit 37. The headphone output interface 38 then transmits the audio signal to the headphones, thereby enabling the headphones to play the audio signal output by the DSP module 11, thereby achieving the function of outputting the audio signal. During a live broadcast, the host wearing headphones connected to the headphone output interface 38 can directly hear the sound output by the sound pickup system, which facilitates the host's audition and avoids re-recording the sound emitted during the audition process, thereby improving the recording quality and facilitating the live broadcast.

[0049] The power amplifier output interface 36 is used to connect to the power amplifier. The DSP module 11 transmits the audio signal to the digital-to-analog converter 32. After the audio signal is processed by the digital-to-analog converter 32, the audio signal is transmitted to the power amplifier output interface 36 through the pre-stage audio output circuit 35. The audio signal is transmitted to the power amplifier through the power amplifier output interface 36, so that the audio signal output by the DSP module 11 can be played through the power amplifier when needed, which facilitates live broadcast.

[0050] This sound pickup system can collect audio signals from different locations using the built-in electret microphone 23, an external microphone, and a pickup. This makes it easy to capture the sounds of musical instruments and the host during live broadcasts. Furthermore, the sound pickup components can be placed closer to the sound source, resulting in clearer sound and improved recording quality. This system can conveniently capture sound sources from different locations and achieves excellent recording quality. It has promising commercial application prospects and can bring greater convenience to people's entertainment lives.

[0051] The USB connection module 14 is connected to an external USB memory, so that the control module 12 can control the DSP module 11 to write the audio signal to the external USB memory, thereby quickly storing the audio in the USB memory, which is convenient for use. The control module 12 can also control the DSP module 11 to play the audio data preset in the USB memory, so that the accompaniment audio data preset in the USB memory can be used to play the accompaniment.

[0052] The TF card connection module 15 is connected to the TF card memory, so that the control module 12 can control the DSP module 11 to write the audio signal into the TF card memory, thereby quickly storing the audio in the TF card memory, which is convenient for use. The control module 12 can also control the DSP module 11 to play the audio data preset in the TF card, so that the accompaniment audio data preset in the TF card can be used to realize the function of playing the accompaniment.

[0053] By connecting to an external Bluetooth module through the Bluetooth connection module 13, the DSP module 11 can be controlled by the control module 12 to transmit the audio signal to the external Bluetooth module, and the recorded audio signal can be quickly transmitted through the Bluetooth connection module 13, which is convenient to use.

[0054] When an external microphone is electrically connected to the external microphone input jack 25, the external microphone circuit 24 is electrically connected to the external microphone and blocks the internal microphone circuit 22 from transmitting audio signals to the DSP module 11. When the user does not need to use an external microphone for recording, the internal microphone circuit 22 can transmit audio signals to the DSP module 11, enabling recording via the internal electret microphone 23. When the user needs to use an external microphone for recording, the internal microphone circuit 22 is blocked from transmitting audio signals to the DSP module 11, preventing the electret microphone 23 from affecting the recorded sound quality and quality, thereby improving recording quality and facilitating recording.

[0055] In summary, after reading the present invention document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical solutions and technical concepts of the present invention without creative mental work, and all of them fall within the scope of protection of the present invention.

Claims

1. A musical instrument pickup system for live broadcasting on the Internet, comprising a DSP module (11), a sound receiving module (21), an output module (31) and a power module (41), wherein the power module (41) is electrically connected to the DSP module (11), and is characterized in that: The sound receiving module (21) includes a built-in microphone circuit (22), an external microphone circuit (24) and a sensor input circuit (26), wherein the built-in microphone circuit (22), the external microphone circuit (24) and the sensor input circuit (26) are electrically connected to the DSP module (11), the built-in microphone circuit (22) is provided with an electret microphone (23) electrically connected thereto, the external microphone circuit (24) is provided with an external microphone input socket (25), the sensor input circuit (26) is provided with a pickup input interface (27), and the output module (31) includes a digital-to-analog converter (3 2), a mobile phone live broadcast connection circuit (33), a front-stage audio output circuit (35) and a headphone output circuit (37), the digital-to-analog converter (32) and the headphone output circuit (37) are electrically connected to the DSP module (11), the mobile phone live broadcast connection circuit (33) and the front-stage audio output circuit (35) are electrically connected to the digital-to-analog converter (32), the mobile phone live broadcast connection circuit (33) is provided with a mobile phone connection port (34), the front-stage audio output circuit (35) is provided with a power amplifier output interface (36), and the headphone output circuit (37) is provided with a headphone output interface (38); It also includes a control module (12), the control module (12) is electrically connected to the DSP module (11), and the DSP module (11) is electrically connected to the USB connection module (14); The built-in microphone circuit (22) is electrically connected to the DSP module (11) via the external microphone circuit (24); when the external microphone input socket (25) is connected to the external microphone, the external microphone circuit (24) blocks the built-in microphone circuit (22) from transmitting signals to the DSP module (11); The control module (12) is electrically connected to a key input circuit (16); the DSP module (11) is electrically connected to a TF card connection module (15); the DSP module (11) is electrically connected to a Bluetooth connection module (13); the power supply module (41) comprises a lithium battery unit (43), a charging circuit (42), a 5V boost circuit (45), a 12V boost circuit (44) and a 3.3V voltage stabilizing circuit (46); the lithium battery unit (43) is electrically connected to the charging circuit (42), the 5V boost circuit (45), the 12V boost circuit (44) and the 3.3V voltage stabilizing circuit (46); the 12V boost circuit (44) is electrically connected to the sensor input circuit (26); the 5V boost circuit (45) is electrically connected to the built-in microphone circuit (22), the digital-to-analog converter (32) and the control module (12) respectively; and the 3.3V voltage stabilizing circuit (46) is electrically connected to the DSP module (11); The key input circuit (16) is provided with a button, and by pressing the button, a control instruction is sent to the control module (12), thereby realizing the control of the control module (12); the charging circuit (42) can charge the lithium battery unit (43), and use the lithium battery to store electric energy; the lithium battery unit (43) respectively supplies power to the 12V boost circuit (44), the 5V boost circuit (45) and the 3.3V voltage stabilizing circuit (46); after the voltage is increased to 12V by the 12V boost circuit (44), the sensor input circuit (26) is supplied with power; after the voltage is increased to 5V by the 5V boost circuit (45), the built-in microphone circuit (22), the digital-to-analog converter (32) and the control module (12) are supplied with power; and the DSP module (11) is supplied with power by the 3.3V voltage stabilizing circuit (46).

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