A vocal sound intelligent elimination circuit for karaoke equipment

Abstract

The utility model provides a kind of original sound intelligent elimination circuit for K song equipment, including the input of original sound elimination main control circuit is connected with the output of wireless microphone audio signal receiving circuit, the input of original sound elimination main control circuit can also connect audio signal source, the output of original sound elimination main control circuit is connected with the input of AI elimination original sound circuit, the output of AI elimination original sound circuit, wireless microphone audio signal receiving circuit's output is connected with the input of sound effect adjusting circuit, the output of sound effect adjusting circuit is connected with the input of audio signal conversion circuit, the output of sound effect adjusting circuit can also connect audio playback device, the output of audio signal conversion circuit can output audio data optical signal and audio data FM signal.The utility model has the beneficial effect that: let user can freely adjust the original sound effect of 20% to 80% according to own demand, greatly improves user experience.

Description

Technical Field

[0001] This utility model relates to the field of circuit technology, specifically to an intelligent sound cancellation circuit for karaoke devices. Background Technology

[0002] Karaoke is a form of singing, and the equipment used mainly includes computers, MP3 players, MPCs (MusePacks), and karaoke machines. It's a way to relax and have fun. Because this form of singing is very appealing to the public, people often go to karaoke bars (KTVs) to sing. Since many people refer to going to karaoke as "going to sing k," the term "k-singing" has gradually evolved into its current usage. Besides going to KTVs, common ways to sing karaoke include outdoor activities or singing at home.

[0003] However, traditional karaoke equipment has many limitations, such as requiring the connection of various cables and having relatively limited functionality. Furthermore, traditional karaoke equipment typically removes the original sound during karaoke by simply eliminating one channel from either the left or right channel, resulting in limited and imprecise effects. Users cannot freely adjust the degree of sound removal according to their needs, and it cannot completely eliminate or retain 20% to 0% of the original sound, failing to meet the diverse needs of users for a karaoke experience. Utility Model Content

[0004] To address the problems in existing technologies, this utility model provides an intelligent original sound removal circuit for karaoke devices. This circuit comprises a main control circuit for original sound removal, an AI original sound removal circuit, a wireless microphone audio signal receiving circuit, a sound effect adjustment circuit, and an audio signal conversion circuit. The AI ​​original sound removal circuit can eliminate the proportion of original sound in the audio signal source according to the instructions from the main control circuit. This information is then transmitted to the sound effect adjustment circuit for adjustment and output to the playback device and the audio signal conversion circuit. This allows users to freely adjust the retention of 20% to 80% of the original sound effect, or completely eliminate the original sound or leave it unremoved. This significantly enhances the diverse karaoke experience for users and solves the problem that traditional karaoke devices on the market cannot meet user needs in terms of original sound removal functionality.

[0005] This utility model provides an intelligent original sound removal circuit for karaoke devices, installed within the karaoke device. It includes a main control circuit for original sound removal, an AI original sound removal circuit, a wireless microphone audio signal receiving circuit, a sound effect adjustment circuit, and an audio signal conversion circuit. The input terminal of the main control circuit is connected to the output terminal of the wireless microphone audio signal receiving circuit. The input terminal of the main control circuit can also connect to an audio signal source. The output terminal of the main control circuit is connected to the input terminal of the AI ​​original sound removal circuit. The output terminals of the AI ​​original sound removal circuit and the wireless microphone audio signal receiving circuit are connected to the input terminal of the sound effect adjustment circuit. The output terminal of the sound effect adjustment circuit is connected to the input terminal of the audio signal conversion circuit. The output terminal of the sound effect adjustment circuit can also connect to an audio playback device. The output terminal of the audio signal conversion circuit can output audio data optical signals and audio data FM signals. The AI ​​original sound removal circuit can remove the proportion of original sound in the audio signal source according to the instructions of the main control circuit and transmit the signal to the sound effect adjustment circuit for adjustment before outputting it to the playback device and the audio signal conversion circuit.

[0006] This utility model is further improved by including a main control chip U3 in the original sound cancellation main control circuit. The main control chip U3 has 48 pins. The first pin of the main control chip U3 can be connected to an audio signal source. The 35th and 36th pins of the main control chip U3 are connected to the input terminal of the AI ​​original sound cancellation circuit. The 4th, 5th and 6th pins of the main control chip U3 are connected to the output terminal of the wireless microphone audio signal receiving circuit.

[0007] This utility model is further improved by providing an AI noise reduction chip U7 in the AI ​​noise reduction circuit. The AI ​​noise reduction chip U7 has 40 pins. The 2nd and 3rd pins of the AI ​​noise reduction chip U7 are connected to the 35th and 36th pins of the main control chip U3, respectively. The 15th, 24th and 23rd pins of the AI ​​noise reduction chip U7 are connected to the input terminal of the sound effect adjustment circuit.

[0008] This utility model is further improved by including a sound effect adjustment chip U5 in the sound effect adjustment circuit. The sound effect adjustment chip U5 has 40 pins. Pins 15, 24, and 23 of the sound effect adjustment chip U5 are connected to pins 15, 24, and 23 of the AI ​​original sound cancellation chip U7, respectively. Pins 5, 4, and 13 of the sound effect adjustment chip U5 are connected to the output terminal of the wireless microphone audio signal receiving circuit. Pins 4 and 13 of the sound effect adjustment chip U5 are connected to the input terminal of the audio signal conversion circuit.

[0009] This utility model is further improved by including an audio signal conversion chip U9, capacitor C451, capacitor C453, and antenna FM_TX in the audio signal conversion circuit. The audio signal conversion chip U9 has 32 pins. Pins 2 and 3 of the audio signal conversion chip U9 are connected to pins 4 and 13 of the sound effect adjustment chip U5, respectively. Pin 25 of the audio signal conversion chip U9 can output audio data optical signals. Pin 21 of the audio signal conversion chip U9 is connected to one end of capacitor C451. The other end of capacitor C451 is connected to one end of capacitor C453. The other end of capacitor C453 is connected to the input terminal of antenna FM_TX. Antenna FM_TX can output audio data FM signals.

[0010] This utility model is further improved by including an audio signal receiving chip U1 and an antenna BT-ANT2 in the wireless microphone audio signal receiving circuit. The audio signal receiving chip U1 has 32 pins. The second and third pins of the audio signal receiving chip U1 are connected to the fourth and 13th pins of the sound effect adjustment chip U5, respectively. The second, third, and fourth pins of the audio signal receiving chip U1 are connected to the fourth, fifth, and sixth pins of the main control chip U3, respectively. The 15th pin of the audio signal receiving chip U1 is connected to the antenna BT-ANT2.

[0011] This utility model is further improved, and the main control chip U3 is model AB5301A.

[0012] This utility model is further improved by using the AI ​​original sound elimination chip U7, model number PTN_1011QFN40, and the sound effect adjustment chip U5, model number PTN_1011QFN40.

[0013] This utility model is further improved, and the audio signal conversion chip U9 is model AB5602B or AB5602F.

[0014] Compared with the prior art, the beneficial effects of this utility model are: it provides an intelligent original sound elimination circuit for karaoke devices. By setting up a cooperating original sound elimination main control circuit, an AI original sound elimination circuit, a wireless microphone audio signal receiving circuit, a sound effect adjustment circuit, and an audio signal conversion circuit in the intelligent original sound elimination circuit for karaoke devices, the AI ​​original sound elimination circuit can eliminate the proportion of original sound in the audio signal source according to the instruction information of the original sound elimination main control circuit, and transmit it to the sound effect adjustment circuit for adjustment before outputting it to the playback device and the audio signal conversion circuit. This allows users to freely adjust and retain 20% to 80% of the original sound effect according to their own needs, or completely eliminate the original sound or not eliminate it at all, which greatly improves the diverse karaoke experience for users and solves the problem that the original sound elimination functionality of traditional karaoke devices on the market is difficult to meet the user's needs. Attached Figure Description

[0015] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a block diagram illustrating the principle of an intelligent original sound cancellation circuit for karaoke equipment according to this utility model.

[0017] Figure 2 This is a circuit diagram of the main control circuit for original sound cancellation according to this utility model;

[0018] Figure 3 This is a circuit diagram of the AI-based sound removal circuit of this utility model;

[0019] Figure 4 This is a circuit diagram of the sound effect adjustment circuit of this utility model;

[0020] Figure 5 This is a circuit diagram of the audio signal conversion circuit of this utility model;

[0021] Figure 6 This is a circuit diagram of the wireless microphone audio signal receiving circuit of this utility model. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] like Figures 1-6 As shown, this utility model provides an intelligent original sound cancellation circuit for karaoke equipment, which is installed inside the karaoke equipment. It includes an original sound cancellation main control circuit, an AI original sound cancellation circuit, a wireless microphone audio signal receiving circuit, a sound effect adjustment circuit, and an audio signal conversion circuit. The input terminal of the original sound cancellation main control circuit is connected to the output terminal of the wireless microphone audio signal receiving circuit. The input terminal of the original sound cancellation main control circuit can also be connected to an audio signal source. The output terminal of the original sound cancellation main control circuit is connected to the input terminal of the AI ​​original sound cancellation circuit. The output terminals of the AI ​​original sound cancellation circuit and the wireless microphone audio signal receiving circuit are connected to the input terminal of the sound effect adjustment circuit. The output terminal of the sound effect adjustment circuit is connected to the input terminal of the audio signal conversion circuit. The output terminal of the sound effect adjustment circuit can also be connected to an audio playback device. The output terminal of the audio signal conversion circuit can output audio data optical signals and audio data FM signals. In this embodiment, the AI ​​original sound elimination circuit can eliminate the proportion of original sound in the audio signal source according to the instruction information of the original sound elimination main control circuit, and transmit it to the sound effect adjustment circuit for adjustment before outputting it to the playback device and audio signal conversion circuit. This allows users to freely adjust and retain 20% to 80% of the original sound effect according to their own needs, or completely eliminate the original sound or not eliminate it, greatly improving the user's diverse karaoke experience.

[0026] like Figure 2As shown, the main control circuit for original sound cancellation includes a main control chip U3, model AB5301A, with 48 pins. Pin 1 of U3 can be connected to an audio signal source. Pins 35 and 36 are connected to the input of the AI ​​original sound cancellation circuit, and pins 4, 5, and 6 are connected to the output of the wireless microphone audio signal receiving circuit. In this embodiment, the main control circuit for original sound cancellation receives the audio signal source and sends it to the AI ​​original sound cancellation circuit, while simultaneously controlling the proportion of original sound eliminated from the audio signal source by the AI ​​original sound cancellation circuit.

[0027] like Figure 3 As shown, the AI ​​original sound removal circuit includes an AI original sound removal chip U7, model number PTN_1011QFN40. The AI ​​original sound removal chip U7 has 40 pins. Pins 2 and 3 of the AI ​​original sound removal chip U7 are connected to pins 35 and 36 of the main control chip U3, respectively. Pins 15, 24, and 23 of the AI ​​original sound removal chip U7 are connected to the input terminals of the sound effect adjustment circuit. In this embodiment, the AI ​​original sound removal circuit is used to remove the proportion of original sound in the audio signal source according to the instruction information from the original sound removal main control circuit and transmit it to the sound effect adjustment circuit.

[0028] like Figure 4 As shown, the sound effect adjustment circuit includes a sound effect adjustment chip U5, model PTN_1011QFN40. The sound effect adjustment chip U5 has 40 pins. Pins 15, 24, and 23 of the sound effect adjustment chip U5 are connected to pins 15, 24, and 23 of the AI ​​original sound cancellation chip U7, respectively. Pins 5, 4, and 13 of the sound effect adjustment chip U5 are connected to the output of the wireless microphone audio signal receiving circuit, and pins 4 and 13 of the sound effect adjustment chip U5 are connected to the input of the audio signal conversion circuit. In this embodiment, the sound effect adjustment circuit is used to adjust the audio signal transmitted from the AI ​​original sound cancellation circuit and output it to the playback device and the audio signal conversion circuit.

[0029] like Figure 5As shown, the audio signal conversion circuit includes an audio signal conversion chip U9, capacitors C451 and C453, and an antenna FM_TX. The audio signal conversion chip U9 is either AB5602B or AB5602F. The audio signal conversion chip U9 has 32 pins. Pins 2 and 3 of the audio signal conversion chip U9 are connected to pins 4 and 13 of the sound effect adjustment chip U5, respectively. Pin 25 of the audio signal conversion chip U9 can output an audio data optical signal. Pin 21 of the audio signal conversion chip U9 is connected to one end of capacitor C451. The other end of capacitor C451 is connected to one end of capacitor C453. The other end of capacitor C453 is connected to the input terminal of the antenna FM_TX, which can output an audio data FM signal. In this embodiment, the audio signal conversion circuit is used to convert the audio signal adjusted by the sound effect adjustment circuit into an audio data optical signal and an audio data FM signal, and then output them.

[0030] like Figure 6 As shown, the wireless microphone audio signal receiving circuit includes an audio signal receiving chip U1 and an antenna BT-ANT2. The audio signal receiving chip U1 has 32 pins. Pins 2 and 3 of the audio signal receiving chip U1 are connected to pins 4 and 13 of the sound effect adjustment chip U5, respectively. Pins 2, 3, and 4 of the audio signal receiving chip U1 are connected to pins 4, 5, and 6 of the main control chip U3, respectively. Pin 15 of the audio signal receiving chip U1 is connected to the antenna BT-ANT2. In this embodiment, the wireless microphone audio signal receiving circuit is used to receive audio signals and output them to the original sound cancellation main control circuit and the sound effect adjustment circuit.

[0031] As can be seen from the above, this utility model provides an intelligent original sound elimination circuit for karaoke devices. By setting up a cooperating original sound elimination main control circuit, an AI original sound elimination circuit, a wireless microphone audio signal receiving circuit, a sound effect adjustment circuit, and an audio signal conversion circuit in the intelligent original sound elimination circuit for karaoke devices, the AI ​​original sound elimination circuit can eliminate the proportion of original sound in the audio signal source according to the instruction information of the original sound elimination main control circuit, and transmit it to the sound effect adjustment circuit for adjustment before outputting it to the playback device and the audio signal conversion circuit. This allows users to freely adjust and retain 20% to 80% of the original sound effect according to their own needs, or completely eliminate the original sound or not eliminate it at all, which greatly improves the diverse karaoke experience of users and solves the problem that the original sound elimination functionality of traditional karaoke devices on the market is difficult to meet the user's needs.

[0032] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A smart original sound cancellation circuit for karaoke devices, installed within the karaoke device, characterized in that: The system includes a main control circuit for original sound elimination, an AI original sound elimination circuit, a wireless microphone audio signal receiving circuit, a sound effect adjustment circuit, and an audio signal conversion circuit. The input terminal of the main control circuit for original sound elimination is connected to the output terminal of the wireless microphone audio signal receiving circuit. The input terminal of the main control circuit for original sound elimination can also be connected to an audio signal source. The output terminal of the main control circuit for original sound elimination is connected to the input terminal of the AI ​​original sound elimination circuit. The output terminals of the AI ​​original sound elimination circuit and the wireless microphone audio signal receiving circuit are connected to the input terminal of the sound effect adjustment circuit. The output terminal of the sound effect adjustment circuit is connected to the input terminal of the audio signal conversion circuit. The output terminal of the sound effect adjustment circuit can also be connected to an audio playback device. The output terminal of the audio signal conversion circuit can output audio data optical signals and audio data FM signals. The AI ​​original sound elimination circuit can eliminate the proportion of original sound in the audio signal source according to the instruction information of the main control circuit for original sound elimination, and transmit it to the sound effect adjustment circuit for adjustment before outputting it to the playback device and the audio signal conversion circuit.

2. The original sound intelligent cancellation circuit for karaoke devices according to claim 1, characterized in that: The original sound cancellation main control circuit includes a main control chip U3, which has 48 pins. The first pin of the main control chip U3 can be connected to an audio signal source. The 35th and 36th pins of the main control chip U3 are connected to the input terminal of the AI ​​original sound cancellation circuit. The 4th, 5th and 6th pins of the main control chip U3 are connected to the output terminal of the wireless microphone audio signal receiving circuit.

3. The original sound intelligent cancellation circuit for karaoke devices according to claim 2, characterized in that: The AI ​​noise reduction circuit includes an AI noise reduction chip U7 with 40 pins. Pins 2 and 3 of the AI ​​noise reduction chip U7 are connected to pins 35 and 36 of the main control chip U3, respectively. Pins 15, 24, and 23 of the AI ​​noise reduction chip U7 are connected to the input of the sound effect adjustment circuit.

4. The original sound intelligent cancellation circuit for karaoke devices according to claim 3, characterized in that: The sound effect adjustment circuit includes a sound effect adjustment chip U5, which has 40 pins. Pins 15, 24, and 23 of the sound effect adjustment chip U5 are connected to pins 15, 24, and 23 of the AI ​​original sound cancellation chip U7, respectively. Pins 5, 4, and 13 of the sound effect adjustment chip U5 are connected to the output of the wireless microphone audio signal receiving circuit, and pins 4 and 13 of the sound effect adjustment chip U5 are connected to the input of the audio signal conversion circuit.

5. The original sound intelligent cancellation circuit for karaoke devices according to claim 4, characterized in that: The audio signal conversion circuit includes an audio signal conversion chip U9, capacitors C451 and C453, and an antenna FM_TX. The audio signal conversion chip U9 has 32 pins. Pins 2 and 3 of the audio signal conversion chip U9 are connected to pins 4 and 13 of the sound effect adjustment chip U5, respectively. Pin 25 of the audio signal conversion chip U9 can output audio data optical signals. Pin 21 of the audio signal conversion chip U9 is connected to one end of capacitor C451. The other end of capacitor C451 is connected to one end of capacitor C453. The other end of capacitor C453 is connected to the input terminal of the antenna FM_TX. The antenna FM_TX can output audio data FM signals.

6. The original sound intelligent cancellation circuit for karaoke devices according to claim 5, characterized in that: The wireless microphone audio signal receiving circuit includes an audio signal receiving chip U1 and an antenna BT-ANT2. The audio signal receiving chip U1 has 32 pins. Pins 2 and 3 of the audio signal receiving chip U1 are connected to pins 4 and 13 of the sound effect adjustment chip U5, respectively. Pins 2, 3, and 4 of the audio signal receiving chip U1 are connected to pins 4, 5, and 6 of the main control chip U3, respectively. Pin 15 of the audio signal receiving chip U1 is connected to the antenna BT-ANT2.

7. The original sound intelligent cancellation circuit for karaoke devices according to claim 6, characterized in that: The main control chip U3 is model AB5301A.

8. The original sound intelligent cancellation circuit for karaoke devices according to claim 7, characterized in that: The AI ​​original sound removal chip U7 is model PTN_1011QFN40, and the sound effect adjustment chip U5 is model PTN_1011QFN40.

9. The original sound intelligent cancellation circuit for karaoke devices according to claim 8, characterized in that: The audio signal conversion chip U9 is model AB5602B or AB5602F.

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