KR20000039841A - Method for displaying microphone status at karaoke mode in video cd player - Google Patents

Abstract

PURPOSE: A displaying method of microphone status at a karaoke mode in a video CD player is provided to increase a user's convenience by displaying the contact state of a wireless or a wire microphone in a main body and by displaying a distorted status of microphone sound with measuring a level of microphone sound during accompanying a song. CONSTITUTION: A data of appropriate song is played by setting a number of song according to a karaoke mode through a video CD player. If a wireless or a wire microphone is connected in a main body by deciding the connection status of wireless or wire microphone during playing the song, the normal connection status of microphone is displayed on a screen. If the wireless or the wire microphone is not connected in the main body, a defective connection status of microphone is displayed on the screen. A distortion of microphone sound is displayed when a level of microphone sound is over a regular level by measuring after displaying the status of microphone.

Description

How to display microphone status in karaoke mode of video CD player

The present invention relates to a method of displaying a microphone state in a karaoke mode of a video CD player, and more particularly, when a karaoke mode is performed through a video CD player, a wireless or wired microphone is connected to the main body and displayed on a screen, and a microphone during a karaoke accompaniment. The present invention relates to a method of displaying a microphone state in a karaoke mode of a video CD player in which a sound level is measured and a distortion state of a microphone sound is also displayed on a screen to increase user convenience.

With the development of audio and video media, optical disc players have been developed for recording and reproducing video and audio data on semi-permanent optical discs.

Such an optical disc player reproduces an image and / or audio recorded on an optical disc and outputs it through a screen and / or a speaker, and has a higher signal-to-noise ratio than conventional image and / or audio reproducing apparatus, resulting in better image quality and / or Or it can reproduce signals with sound quality, generate no noise due to irregular playback and modulation, very low distortion, no ghost (GHOST), random access, and so on. There is a trend that is spreading.

In addition, such optical disk players include compact disk players (CDPs), laser disk players (LDPs) and compact disk graphic players (CDGPs), and video compact disk players (VCDPs). video compact disk player) has been developed and widely used.

Herein, the configuration of the video compact disc player includes a key input unit 74 for setting a plurality of functions including a karaoke mode, and operation of the player according to a setting signal input from the key input unit 74 as shown in FIG. A microcomputer 75 for controlling the overall information, and an optical reproducing unit 70 for demodulating and amplifying the amplified information by reading and amplifying the information recorded on the video CD according to the control signal of the microcomputer 75. And an MPEG decoder 71 for decompressing and demodulating the data demodulated from the optical reproducing unit 70, an RGB encoder 72 for converting and outputting a video signal into an analog signal among the data decompressed by the MPEG decoder 71; And a display 73 for displaying a video signal output from the RGB encoder 72, and an audio signal for processing the audio signal in analog form among the data extended from the MPEG decoder 71. An electronic volume input from the wired microphone input unit 77 or mixed with the audio signal from the wireless microphone input unit 79 and output to the speaker 76; It consists of 75.

In addition, a wireless receiver 78 which is wirelessly connected to a wireless microphone is connected to the front end of the wireless microphone input unit 79.

Meanwhile, the operation of a conventional video CD player having such a configuration will be described below.

First, when the user sets the corresponding song number according to the karaoke mode through the key input unit 74, the corresponding setting signal is input to the microcomputer 75. The microcomputer 75 then applies a predetermined drive control signal to the optical regeneration unit 70. Accordingly, the optical reproducing unit 70 applies the recorded data recorded on the video CD to the MPEG decoder 71 through signal processing after reading and amplifying. Therefore, the MPEG decoder 71 expands the compressed data output by the optical reproducing unit 70 in a decoding operation, and among the decompressed data, the image data is the RGB encoder 72, and the audio data is the audio signal processing unit. 74 respectively.

At this time, the RGB encoder 72 converts the applied image data into an analog signal and displays the image signal, that is, the image screen and the song lyrics on the display 73 in the form of respective luminance and color difference signals.

On the other hand, the voice data applied to the voice signal processing unit 74 is converted into an analog signal and signal processed and applied to the electronic volume 75. At this time, a voice signal input from the wired microphone input unit 77 or a voice signal input from the wireless receiving unit 78 and the wireless microphone input unit 79 is input to the electronic volume 75. Therefore, the electronic volume 75 constantly mixes the user's voice with the audio reproduced from the video CD and outputs it through the speaker 76. Therefore, the user can check the song lyrics through the display 73 TV or monitor, listen to the sound output through the speaker 76, and sing along with the song accurately. At this time, the user's voice is input to a non-illustrated grading device, and the grading device scores the user's song score based on the height or time signature of the currently played video CD.

However, when performing karaoke mode through such a conventional video CD player, it is necessary to check the status of the microphone, i.e., even if a wired or wireless microphone is not connected when the song accompaniment is output from the video CD, the user cannot quickly recognize this and actually the microphone When the voice is not input through it can be known as rain, there was a problem of missing the lyrics according to the song accompaniment.

Also, when the microphone is connected to an external device connected to the video CD player, the sound from the microphone and the video CD should be properly mixed in level, but the microphone level is set to be large at the last use (relative to the song accompaniment sound). ), When the user does not recognize this and connects to the microphone and performs a song, there is a problem of giving a sense of discomfort due to the distorted sound output from the microphone to the surrounding people as well as the user.

Accordingly, the present invention has been invented to solve the above-mentioned problems, the wireless or wired microphone is connected to the main body when performing the karaoke mode through the video CD player, so that the user can easily identify the connection state It provides a method of displaying the microphone status in the karaoke mode of the video CD player, which enables the user to quickly adjust the distorted microphone sound level by displaying the distortion state of the microphone sound on the screen by measuring the microphone sound level during the song accompaniment. There is a purpose.

In order to achieve the above object, the present invention comprises the steps of (a) reproducing the song data as the song number according to the karaoke mode is set through the video CD player; (B) determining a connection state of the wireless microphone or the wired microphone during the song reproduction operation in this step (a); If it is determined in the step (b) that the wired microphone or the wireless microphone is connected to the main body, displaying the normal connection state of the microphone as a screen; If it is determined in the step (b) that the wired microphone or the wireless microphone is not connected to the main body, displaying the connection failure state of the microphone as a screen; After the microphone state display operation according to the step (c) and step (d) is determined by measuring the microphone sound level is determined to be a predetermined level or more, characterized in that it comprises a step (e) of displaying the microphone sound distortion.

1 is a block diagram showing the configuration of a typical video CD player.

2 is a block diagram illustrating the operation of a video CD player according to the present invention;

Figure 3 is a flow chart illustrating a microphone state display method in karaoke mode according to the present invention.

4 is a view showing an embodiment of a microphone status display according to the present invention.

<Explanation of symbols for main parts of drawing>

1: key input 2: microcomputer

3: wireless microphone connection detection unit 4: wired microphone connection detection unit

5: volume level detection unit 6: VCD playback unit

7: MPEG decoder 8: memory

9: RGB encoder 10: Display

11: voice signal processing unit 12: electron volume

13: speaker 14: wired microphone input unit

15: wireless microphone receiver 16: wireless microphone input unit

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The video CD player to which the present invention is applied includes a key input unit 1 for setting a plurality of functions including a karaoke mode, a wireless microphone detection unit 3 for detecting a synchronization signal from a wireless microphone, as shown in FIG. The display operation according to the microphone connection state is controlled in accordance with the wired microphone detection unit 4 for detecting a synchronization signal from the wired microphone and the signals detected from the wired microphone detection unit 4 and the wireless microphone detection unit 3. A microcomputer 2 for controlling the overall operation of the system according to the function signal inputted from 1), an OSD unit 8 for displaying the corresponding character on the display 10 according to the control signal of the microcomputer 2; And a VCD playback unit 6 which reads and amplifies information recorded on the video CD according to the control signal of the microcomputer 2, demodulates the amplified information and performs error correction. An MPEG decoder 7 which decompresses and outputs the demodulated compressed data from the reproduction unit 6, an audio signal processor 11 which processes a voice signal in analog form among the data decompressed from the MPEG decoder 7, The voice signal signaled by the voice signal processor 11 is input from the wired microphone input unit 14 or mixed with the voice signal from the wireless microphone input unit 16 and output to the speaker 13.

The rear end of the MPEG decoder 7 is connected to an RGB encoder 9 which applies to the display 10 which converts and outputs a video signal into an analog signal among the extended data.

In addition, a wireless receiver 15 connected to a wireless microphone is connected to a front end of the wireless microphone input unit 16.

On the other hand, look at the operation according to the present invention made of such a configuration as follows.

First, when the user sets the corresponding song number according to the karaoke mode through the key input unit 1, the corresponding setting signal is input to the microcomputer 2. The microcomputer 2 then applies a predetermined drive control signal to the VCD playback unit 6. This VCD reproducing section 6 applies the recorded data recorded on the video CD to the MPEG decoder 7 through signal processing after reading and amplifying. Therefore, the MPEG decoder 7 expands the compressed data output from the VCD reproducing unit 6 in a decoding operation, and among the decompressed data, the image data is the RGB encoder 9, and the audio data is the audio signal processing unit 11. Are applied respectively.

On the other hand, the microcomputer 2 receives a predetermined detection signal from the wireless microphone detector 3 and the wired microphone detector 4, that is, as a wireless microphone or a wired microphone is connected through the microphone input terminal of the video CD player. The synchronization signal corresponding thereto is input to the microcomputer 2 in a high state. Then, the microcomputer 2 determines that the microphone is normally connected and applies the control signal to the OS. Then, when the RGB encoder 7 converts the image data into an analog signal and displays the image signal, that is, the image screen and the song lyrics on the display 73 in the form of respective luminance and chrominance signals, the display 10 is displayed on the display 10. The text signal output from the OS section 8 is displayed. For example, as shown in FIG. 4A, a microphone connection character is output in blue or the displayed character is blinked for a predetermined time so that the user can easily recognize the character.

That is, as shown in FIG. 3, in the karaoke mode, the microphone state displaying method proceeds to the karaoke mode setting determination step S2 in which the initial state S1 in which the driving power is input and the video CD is mounted. As a result of the determination in the karaoke mode setting determination step S2, when it is determined that the song number according to the karaoke mode is set, the process proceeds to the reproduction preparation operation step S3. Then, in this reproduction preparation operation step S4, a preliminary operation according to the reproduction operation of the recorded song according to the input reproduction mode is performed, and the flow proceeds to the wireless microphone connection determination step S4. Then, if it is determined in the wireless microphone connection determination step (S4) that the corresponding synchronization signal is detected by the connection of the wireless microphone, the process proceeds to the wireless microphone connection display step (S5) and displays a wireless microphone connection.

If it is determined in the wireless microphone connection determination step (S4) that the corresponding synchronization signal is not detected due to the disconnection of the wireless microphone, the process proceeds to the wired microphone connection determination step (S6). As a result of the determination in the wired microphone connection determination step (S6), if it is determined that the corresponding synchronous signal is detected by the connection of the wired microphone, the flow proceeds to the wired microphone connection display step (S7) and displays a screen that the wired microphone is connected.

Meanwhile, as the wireless microphone or the wired microphone is not connected through the microphone input terminal of the video CD player, the low signal is input to the microcomputer 2. Then, the microcomputer 2 determines that the microphone is abnormally connected and applies the control signal to the OS. Then, when the RGB encoder 7 converts the image data into an analog signal and displays the image signal, that is, the image screen and the song lyrics on the display 7, in the form of respective luminance and chrominance signals, the display 10 displays on the display 10. The text signal output from the OS section 8 is displayed as shown in Fig. 4B.

For example, as shown in FIG. 4B, the character 'no microphone connection' is output in red or the displayed character is flickered for a predetermined time so that the user can easily recognize the character.

That is, when it is determined in the wired microphone connection determination step (S6) that the synchronization signal corresponding to the wired microphone is not detected, the process proceeds to the connection failure display step (S8). In this connection failure display step (S8) it indicates that the wired or wireless microphone is not connected and proceeds to the microphone sound measurement step (S9). In this microphone sound measurement step (S9) to measure the sound level input from the microphone proceeds to the microphone sound determination step (S10). If it is determined in the microphone sound determination step (S10) that the input microphone sound is relatively larger than the playback sound level, the process proceeds to the microphone sound distortion display step (S11) to indicate that the microphone sound is distorted on the screen and the present loop is repeated. Quit.

That is, when the user sings to the music accompanied by the wired microphone or the wireless microphone after the control operation of the microcomputer 2 according to whether the microphone is connected or not, the voice signal corresponding thereto is the wired microphone unit 14 or the wireless microphone unit. Input to the electron volume unit 12 through (16).

In addition, the user's voice input through the wired microphone unit 14 or the wireless microphone unit 16 is input to the volume level detecting unit 5. Then, the volume level detecting unit 5 detects the voice level of the user to be input and inputs a corresponding detection signal to the microcomputer 2. At this time, the microcomputer 2 compares the input detection signal with a pre-stored level value and if it is determined that the input value exceeds a predetermined value, the microcomputer 2 applies the control signal accordingly to the OS. Then, when the RGB encoder 7 converts the image data into an analog signal and displays the image signal, that is, the image screen and the song lyrics on the display 10 in the form of respective luminance and chrominance signals, on the display 10. The text signal output from the OS section 8 is displayed as shown in Fig. 4C.

For example, the microphone may display a character distortion or cause the displayed character to blink for a certain time so that the user may easily recognize it.

As described above, the present invention displays the wireless or wired microphone as connected to the main body when the karaoke mode is performed through the video CD player so that the user can easily identify the connection state and the sound of the microphone during the song accompaniment. By measuring the level and displaying the distortion state of the microphone sound on the screen, it is possible to quickly adjust the distorted microphone sound level, thereby increasing the user's convenience.

Claims (1)

(A) reproducing the corresponding song data since the song number according to the karaoke mode is set through the video CD player; (B) determining a connection state of the wireless microphone or the wired microphone during the song reproduction operation in this step (a); If it is determined in the step (b) that the wired microphone or the wireless microphone is connected to the main body, displaying the normal connection state of the microphone as a screen; If it is determined in the step (b) that the wired microphone or the wireless microphone is not connected to the main body, displaying the connection failure state of the microphone as a screen; Karaoke of the video CD player, characterized in that the step of measuring the microphone sound level after the microphone state display operation according to the step (c) and step (d) and if it is determined to be above a certain level (e) How to display microphone status in mode.