TWI444043B - Mobile karaoke apparatus and mobile karaoke system using the same mobile karaoke apparatus - Google Patents

Description

Action accompaniment device and action accompaniment system using the action accompaniment device

The invention relates to the technical field of a vocal device, and in particular to an action accompaniment device and an action accompaniment system using the action accompaniment device.

In modern life, KTV (karaoke television) accompaniment system is a kind of entertainment equipment that people often use, and the traditional family KTV accompaniment system is composed of KTV karaoke machine (such as Jinhao karaoke machine), large vocal machine, The combination of the songs and the like was constructed. However, since the device of the home KTV karaoke system is complicated and bulky, it is very inconvenient for the user to carry out and use.

In addition, although there are mobile phone manufacturers who have introduced a smart phone with sing-song function, this smart phone cannot mix the user's singing voice and the songs played, so it can only be played by the user following the smart phone. The song is coming to sing.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an action accompaniment apparatus which is not only portable, but also can mix a user's singing voice and a played song.

Another object of the present invention is to provide an action accompaniment system which employs the above-described action accompaniment apparatus.

The invention provides a mobile karaoke device, which comprises a transmission interface, a video file storage unit, a sound source storage unit, a sound source processing unit, a digital-analog conversion unit, an audio amplification unit and a control unit. Wherein, the transmission interface is adapted to be connected to the tablet device. The video file storage unit is used to store a plurality of music files. The sound source storage unit is used to store the sound source of the digital music. The sound source processing unit is electrically connected to the sound source storage unit. The digital-to-analog conversion unit is electrically connected to the sound source processing unit. The audio amplifying unit is electrically connected to the digital-analog conversion unit. The control unit is electrically connected to the transmission interface, the audio and video file storage unit, and the sound source processing unit, for receiving the operation instruction sent by the tablet device through the transmission interface, and finding the music file corresponding to the operation instruction from the video file storage unit, The music file is transmitted to the tablet device, so that the tablet device can process the music file to obtain the digital sound source file, and the digital sound source file is transmitted to the sound source processing unit through the control unit, so that the sound source processing unit can be obtained and processed from the sound source storage unit. Corresponding to the sound source of the digital sound source file, and transmitting the processed sound source to the digital-to-analog conversion unit to convert into an analog signal, so that the audio amplification unit can amplify the analog signal output by the digital-analog conversion unit.

In an embodiment of the action singer device of the present invention, the sound source processing unit is further adapted to be electrically connected to the microphone, to obtain the sound of the user through the microphone, and convert the sound into a digital signal to be converted. The digital signal is mixed with the obtained sound source and then output to a digital-analog conversion unit for processing.

In an embodiment of the action accompaniment apparatus of the present invention, the tablet device comprises a tablet computer.

The invention further provides a mobile accompaniment system comprising a tablet device and a mobile vocal device. Wherein, the tablet device has a processing chip, and the action accompaniment device comprises a transmission interface, a video file storage unit, a sound source storage unit, a sound source processing unit, a digital-analog conversion unit, an audio amplification unit and a control unit. Wherein, the transmission interface is adapted to be connected to the tablet device. The video file storage unit is used to store a plurality of music files. The sound source storage unit is used to store the sound source of the digital music. The sound source processing unit is electrically connected to the sound source storage unit. The digital-to-analog conversion unit is electrically connected to the sound source processing unit. The audio amplifying unit is electrically connected to the digital-analog conversion unit. The control unit is electrically connected to the transmission interface, the audio and video file storage unit, and the sound source processing unit, for receiving the operation instruction sent by the tablet device through the transmission interface, and finding the music file corresponding to the operation instruction from the video file storage unit, Transmitting the music file to the processing chip of the tablet device, so that the processing chip can process the music file to obtain the digital sound source file, and transmit the digital sound source file to the sound source processing unit through the control unit, so that the sound source processing unit can be from the sound source storage unit. Acquiring and processing the sound source corresponding to the digital sound source file, and transferring the processed sound source to the digital-to-analog conversion unit to convert the analog signal, so that the audio amplification unit can amplify the analog signal output by the digital-analog conversion unit.

The main method for solving the foregoing problems is to construct a transmission interface, a video file storage unit, a sound source storage unit, a sound source processing unit, a digital-to-analog conversion unit, an audio amplification unit and a control unit. A mobile singer. Since the action accompaniment device transfers complicated calculations to the processing chip in the tablet device (for example, a tablet), the circuit design is simple and the processing chip with high computing power is not required, so compared with the conventional For the karaoke machine, the action singer device is not only small in size but also easy to carry, and the cost is also low. In addition, since the action accompaniment device can mix the sound of the user with the sound source of the digital audio file of the played song, the action singer device can be used together with the tablet device, and the tablet device is used as the song interface. And then construct a simple action accompaniment system.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

1 is a schematic diagram of an action accompaniment system in accordance with an embodiment of the present invention. Referring to FIG. 1, the action accompaniment system includes a tablet device (for example, a tablet computer) 10 and an action accompaniment device 12. The inside of the tablet device 10 described above has a processing chip 101 having high computing power. The action vocal device 12 includes a transmission interface 121, a video file storage unit 122, a sound source storage unit 123, a sound source processing unit 124, a digital-analog conversion unit 125, an audio amplification unit 126, and a control unit 127.

In the components of the action singer 12, the transmission interface 121 is adapted to be connected to the tablet device 10. The transmission interface 121 can be implemented, for example, by using a universal serial bus (USB) interface, or by using a wireless device. The transmission interface is implemented. The video file storage unit 122 is configured to store a plurality of music files, for example, a music file in an MP3 format or an MP4 format. The sound source storage unit 123 is used to store a sound source of digital music, for example, a sound source that stores digital music in accordance with a Musical Instrument Digital Interface (MIDI) format. The sound source processing unit 124 is electrically connected to the sound source storage unit 123. The digital-to-analog conversion unit 125 is electrically connected to the sound source processing unit 124. The audio amplifying unit 126 is electrically connected to the digital-analog converting unit 125.

As for the control unit 127, it is electrically connected to the transmission interface 121, the video file storage unit 122, and the sound source processing unit 124. The control unit 127 is configured to receive an operation command sent by the tablet device 10 through the transmission interface 121, and find a music file corresponding to the operation instruction from the audio file storage unit 122 to transmit the music file to the tablet device 10. The processing chip 101 is processed so that the processing chip 101 can process the music file to obtain the digital sound source file, and the digital audio source file is transmitted to the sound source processing unit 124 through the control unit 127, so that the sound source processing unit 124 can obtain the sound source processing unit 124. And processing the sound source corresponding to the digital sound source file, and transmitting the processed sound source to the digital-to-analog conversion unit 125 to convert the analog signal, so that the audio amplification unit 126 can amplify the analog signal output by the digital-analog conversion unit 125.

Of course, the above-mentioned video file storage unit 122 can further store a plurality of video files, for example, a video file stored in AVI format or MPEG format. Assuming that the transmission interface 121 further has the audio decoding device 128, and the audio decoding device 128 is electrically connected to the audio amplification unit 126, the control unit 127 can further receive another operation instruction sent by the tablet device 10 through the transmission interface 121. And the video file corresponding to the another operation command is found from the video file storage unit 122 to transmit the video file to the processing chip 101 of the tablet device 10, so that the processing chip 101 can process the audio file to obtain the sound. The data is transmitted to the sound decoding device 128 for decoding, so that the sound decoding device 128 directly transmits the processed sound data to the audio amplifying unit 126 for signal amplification.

In addition, if the tablet device 10 is suitable for connecting to a network (not shown) and is suitable for downloading a music file or a video file from the network, the user can use the tablet device 10 to download through the above-mentioned transmission interface 121. The music file or video file is stored in the video file storage unit 122.

In addition, the sound source processing unit 124 is further adapted to electrically connect the microphone 13 to obtain the sound of the user through the microphone 13 and convert the sound into a digital signal to mix the converted digital signal with the obtained sound source. And then output to the digital-analog conversion unit 125 for processing. Of course, the action accompaniment device 12 can further configure the microphone volume control switch 130 and the echo volume control switch 131, and both of them are electrically connected to the control unit 127. In this way, the user can not only control the volume of the microphone 13 through the microphone volume control switch 130, but also control the echo volume through the echo volume control switch 131.

The audio amplifying unit 126 is further adapted to electrically connect the speaker 14 so that the speaker 14 can play the sound according to the output of the audio amplifying unit 126. Of course, the action accompaniment device 12 can additionally set the mute control switch 132 and electrically connect the mute control switch 132 to the control unit 127. In this way, the user can control the mute of the speaker 14 through the mute control switch 132. It should be noted that in the embodiment, the speaker 14 and the microphone 13 can be built into the action accompaniment device 12 or both are independent devices and connected to the action accompaniment device 12 through the through hole.

In addition, the action accompaniment device 12 can further add an infrared receiving device 133, and electrically connect the infrared receiving device 133 to the control unit 127, so that the control unit 127 receives an operation command through the infrared receiving device 133, so as to act according to the operation command. The accompaniment device 12 performs manipulation such as controlling the volume or echo of the microphone 13, or controlling the volume or mute of the horn 14.

In summary, the main method for solving the foregoing problems is to use a transmission interface, a video file storage unit, a sound source storage unit, a sound source processing unit, a digital-to-analog conversion unit, an audio amplification unit, and a The control unit constructs an action accompaniment device. Since the action accompaniment device transfers complicated calculations to the processing chip in the tablet device (for example, a tablet), the circuit design is simple and the processing chip with high computing power is not required, so compared with the conventional For the karaoke machine, the action singer device is not only small in size but also easy to carry, and the cost is also low. In addition, since the action accompaniment device can mix the sound of the user with the sound source of the digital audio file of the played song, the action singer device can be used together with the tablet device, and the tablet device is used as the song interface. And then construct a simple action accompaniment system.

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

10. . . Tablet device

12. . . Action singer

13. . . microphone

14. . . horn

101. . . Processing wafer

121. . . Transmission interface

122. . . Video file storage unit

123. . . Source storage unit

124. . . Sound source processing unit

125. . . Digital-analog conversion unit

126. . . Audio amplification unit

127. . . control unit

128. . . Audio decoding device

130. . . Microphone volume control switch

131. . . Echo volume control switch

132. . . Mute control switch

133. . . Infrared receiving device

1 is a schematic diagram of an action accompaniment system in accordance with an embodiment of the present invention.

10. . . Tablet device

12. . . Action singer

13. . . microphone

14. . . horn

101. . . Processing wafer

121. . . Transmission interface

122. . . Video file storage unit

123. . . Source storage unit

124. . . Sound source processing unit

125. . . Digital-analog conversion unit

126. . . Audio amplification unit

127. . . control unit

128. . . Audio decoding device

130. . . Microphone volume control switch

131. . . Echo volume control switch

132. . . Mute control switch

133. . . Infrared receiving device

Claims (21)

An action accompaniment device includes: a transmission interface adapted to connect to a tablet device; a video file storage unit for storing a plurality of music files; a sound source storage unit for storing a sound source of the digital music; and a sound source processing unit Electrically connecting the sound source storage unit; a digital-to-analog conversion unit electrically connected to the sound source processing unit; an audio amplification unit electrically connected to the digital-analog conversion unit; and a control unit electrically connected to the transmission interface The video file storage unit and the sound source processing unit are configured to receive, by the transmission interface, a first operation instruction sent by the tablet device, and find one of the first operation commands from the video file storage unit a music file for transmitting the music file to the tablet device, so that the tablet device can process the music file to obtain a digital sound source file, and transmit the digital sound source file to the sound source processing unit through the control unit, so as to The sound source processing unit can obtain and process the sound source corresponding to the digital sound source file from the sound source storage unit, and Good source is transmitted to the digital - analog conversion means to convert analog signals, such that the audio amplifying unit may amplify the digital - analog converter the analog signal output unit. The action sing-along device of claim 1, wherein the sound source processing unit is further adapted to be electrically connected to a microphone to obtain a voice of a user through the microphone, and convert the sound into a digital signal to The converted digital signal is mixed with the obtained sound source, and then output to the digital-analog conversion unit for processing. The action accompaniment device of claim 2, further comprising a microphone volume control switch electrically connected to the control unit. The action accompaniment device of claim 2, further comprising an echo volume control switch, the echo volume control switch being electrically connected to the control unit. The action accompaniment device of claim 1, wherein the audio amplifying unit is further adapted to be electrically connected to a speaker, so that the speaker can play the sound according to the output of the audio amplifying unit. The action accompaniment device of claim 1, wherein the video file storage unit is further configured to store a plurality of audio and video files, and the transmission interface further comprises an audio decoding device, and the audio amplifying unit is electrically connected to the audio input unit. a sound decoding device, wherein the control unit is further configured to receive, by the transmission interface, a second operation instruction sent by the tablet device, and find a video file corresponding to the second operation instruction from the video file storage unit, Transmitting the video file to the tablet device, so that the tablet device can process the video file to obtain the sound data, and transmit the obtained sound data to the audio decoding device for decoding, so that the audio decoding device will process Good sound data is transmitted to the audio amplification unit for signal amplification. The action accompaniment device of claim 1, further comprising an infrared receiving device electrically connected to the control unit, so that the control unit receives a second operation command through the infrared receiving device. The action accompaniment device of claim 1, further comprising a mute control switch electrically connected to the control unit. The action singer device of claim 1, wherein the transmission interface comprises a universal serial bus interface. The action accompaniment device of claim 1, wherein the tablet device comprises a tablet computer. An action accompaniment system comprising: a tablet device having a processing chip; and a mobile karaoke device comprising: a transmission interface adapted to connect to the tablet device; and a video file storage unit for storing a plurality of music files; a sound source storage unit for storing a sound source of digital music; a sound source processing unit electrically connected to the sound source storage unit; a digital-analog conversion unit electrically connected to the sound source processing unit; and an audio amplifying unit electrically connected to the digital bit An analog conversion unit; and a control unit electrically connected to the transmission interface, the video file storage unit, and the sound source processing unit, configured to receive, by the transmission interface, a first operation instruction sent by the tablet device, and The video file storage unit finds a music file corresponding to the first operation command to transmit the music file to the processing chip of the tablet device, so that the processing chip can process the music file to obtain a digital sound source. And transmitting the digital sound source file to the sound source processing unit through the control unit, so that the sound source processing unit The sound source corresponding to the digital sound source file can be obtained and processed from the sound source storage unit, and the processed sound source is transmitted to the digital-analog conversion unit to be converted into an analog signal, so that the audio amplification unit can amplify the digital-analog conversion unit. The analog signal output. The action accompaniment system of claim 11, wherein the sound source processing unit is further adapted to be electrically connected to a microphone to obtain a voice of a user through the microphone, and convert the sound into a digital signal to The converted digital signal is mixed with the obtained sound source, and then output to the digital-analog conversion unit for processing. The action accompaniment system of claim 12, further comprising a microphone volume control switch electrically connected to the control unit. The action accompaniment system of claim 12, further comprising an echo volume control switch, the echo volume control switch being electrically connected to the control unit. The action accompaniment system of claim 11, wherein the audio amplifying unit is further adapted to be electrically connected to a speaker, so that the speaker can play the sound according to the output of the audio amplifying unit. The action accompaniment system of claim 11, wherein the video file storage unit is further configured to store a plurality of audio and video files, and the transmission interface further has an audio decoding device, and the audio amplifying unit is electrically connected to the audio input unit. a sound decoding device, wherein the control unit is further configured to receive, by the transmission interface, a second operation instruction sent by the tablet device, and find a video file corresponding to the second operation instruction from the video file storage unit, Transmitting the video file to the processing chip of the tablet device, so that the processing chip can process the video file to obtain the sound data, and transmit the obtained sound data to the audio decoding device for decoding, so that the sound effect is obtained. The decoding device transmits the processed sound data to the audio amplifying unit for signal amplification. The action accompaniment system of claim 11, further comprising an infrared receiving device electrically connected to the control unit, so that the control unit receives a second operation command through the infrared receiving device. The action accompaniment system of claim 11, further comprising a mute control switch electrically connected to the control unit. The action accompaniment system of claim 11, wherein the transmission interface comprises a universal serial bus interface. The action accompaniment system of claim 11, wherein the tablet device comprises a tablet computer. The action accompaniment system of claim 11, wherein the tablet device is adapted to connect to a network to download a music file or a video file from the network, and download the music file or video file through the transmission interface. Stored in the video file storage unit.