JPH05127687A - Disk reproduction device - Google Patents

Abstract

PURPOSE:To eliminate the trouble of waiting after the selection of disk by playing an accompaniment to specified music once the music is specified and substantially shortening the time for the disk selection. CONSTITUTION:Introduction data on only specific-time introduction parts of all pieces of music recorded on plural disks 1 for normal reproduction are recorded on an introduction disk 7; once optional music is specified, the introduction data corresponding to the specified music are reproduced from the introduction disk 7 to generate a sound. Then when reproduction is started after the replacement of the disk 1 for normal reproduction, a system controller 13 controls a mixer 12 so that the introduction data and normal sound data reproduced from the disk 1 for normal reproduction are cross-faded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc reproducing apparatus suitable for use in a so-called karaoke apparatus or the like.

[0002]

2. Description of the Related Art The popularization of so-called karaoke devices today is remarkable. The karaoke device is
In the early days, it seems that the accompaniment corresponding to a song was analog-recorded on a magnetic tape as a recording medium, but in recent years, an optical disc on which audio data corresponding to the song is digitally recorded is often used.

A conventional karaoke apparatus using the above-mentioned optical disc is provided with a plurality of optical discs in a disc changer mechanism, and when an arbitrary song is designated, an accompaniment of the designated song from the plurality of optical discs is performed. The optical disc on which is recorded is selected, mounted on the player, and reproduced.

[0004]

However, in the conventional disc reproducing apparatus, when an arbitrary song is designated, the optical disc on which the accompaniment of the designated song is recorded is selected from a plurality of optical discs. However, since the reproduction is started after being mounted on the player, it takes a lot of time from the designation of the arbitrary music to the start of the accompaniment.

It is ideal for the user that the accompaniment is started as soon as the designation of the music is completed, and it is desired to develop a disc reproducing apparatus which minimizes the waiting time due to the selection of the optical disc as described above. ing.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a disc reproducing apparatus capable of starting an accompaniment as soon as the designation of a song is completed.

[0007]

DISCLOSURE OF THE INVENTION A disc reproducing apparatus according to the present invention comprises a plurality of discs for normal reproduction in which arbitrary recording data is recorded, and all recordings recorded on the plurality of discs for normal reproduction. Intro memory in which the intro data, which is the recording data for a predetermined time from the recording start portion of the data, is recorded, and in the normal reproduction in which the specified recording data is recorded from the plurality of normal reproduction discs. Disc reproducing means for selecting a disc for reproduction, a disc reproducing portion for normal reproduction for reproducing recorded data recorded on the disc for normal reproduction selected by the disc exchanging means, and recorded in the intro memory. The recorded data reproduced by the intro data reproducing section that reproduces the intro data and the disk reproducing section for normal reproduction. The cross-fading means for outputting the intro data reproduced by the intro-memory reproducing section and the disk exchanging means for controlling the disk for normal reproduction in which the specified recording data is recorded are selected and designated. The intro data reproducing section controls the intro memory reproducing section so that the intro data corresponding to the reproduced recorded data is reproduced, and when the reproduction of the recorded data of the normal reproduction disk is started, the intro data reproduced. In place of the above, there is provided a control means for controlling the crossfade means so that the recording data of the disc for normal reproduction is output, and the above-mentioned problem is solved.

[0008]

In the disc reproducing apparatus according to the present invention, the control means controls the disc exchanging means so that the disc for normal reproduction in which the designated recording data is recorded is selected, and the designated recording is performed. The intro memory reproducing section is controlled so that the intro data corresponding to the data is reproduced, and when the reproduction of the recorded data of the normal reproduction disk is started, the intro data being reproduced is replaced. The crossfade means is controlled so that the recording data of the disc for normal reproduction is output.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a disc reproducing apparatus according to the present invention will be described below with reference to the drawings. For example, as shown in FIG. 1, the disc reproducing apparatus according to the present embodiment includes a plurality of discs for normal reproduction 1 in which audio data and time data corresponding to the accompaniment of music are recorded, and a plurality of discs for normal reproduction. A disc changer mechanism 2 which is a disc exchanging means for selecting a disc 1 for normal reproduction in which an accompaniment of a designated music piece is recorded from the disc 1 for reproduction, and a first drive for rotating the disc 1 for normal reproduction Spindle motor 3, a first optical system 4 for reading normal audio data recorded on the normal reproduction disk 1, and the first optical system 4.
First detecting time data from normal audio data read by the optical system 4 and forming and outputting time detection data
Of the normal audio data read by the time data detection circuit 5 and the first optical system 4 of FIG.
It also has a D / A converter 6 which performs (digital / analog) conversion to form and output a normal audio signal.

It should be noted that the first spindle motor 3, the first optical system 4, the D / A converter 6 and the first time data detection circuit 5 are the first player 18 which is a disk reproducing section for normal reproduction. Is composed of.

Further, the disc reproducing apparatus has an intro in which the intro data of the so-called intro portion, which is data for a predetermined time from the start of accompaniment, of all the songs recorded on the plurality of normal reproduction discs 1 is recorded. Intro disk 7 which is a memory, and the above intro disk 7
A second spindle motor 8 for rotationally driving, a second optical system 9 for reading intro data recorded on the intro disk 7, and time data from the intro data read by the second optical system 9. A second time data detection circuit 10 for detecting and forming and outputting time detection data, and voice data of the intro data read by the second optical system 9 is D / A converted to form an intro voice signal. And a D / A converter 11 for outputting the output.

The second spindle motor 8, the second optical system 9, the D / A converter 11 and the second time data detection circuit 10 constitute a second player 19 which is an intro memory reproducing section. ing. The intro disk 7 is always mounted on the second player 19 so that the intro disk 7 can be played back immediately after the music is designated.

Further, the disk reproducing apparatus is the first
And outputs the normal audio signal from the player 19 (actually the D / A converter 6) or the intro audio signal from the second player 18 (actually the D / A converter 11). Mixer 12 as crossfade means
An amplifier 16 that amplifies the normal audio signal or the intro audio signal from the mixer 12 with a predetermined gain, and a speaker device 17 that sounds according to the normal audio signal or the intro audio signal from the amplifier 16. The disc changer mechanism 2 is selected so that the disc for normal reproduction 1 on which the recording data of the music is recorded is selected.
Is controlled to control the second player 19 so that the intro data corresponding to the designated tune is reproduced, and the reproduction of the recording data of the normal reproduction disc 1 is started. A system controller 13, which is a control means for controlling the mixer 12 so that the normal audio signal from the normal reproduction disk 1 is output instead of the intro audio signal being reproduced, and designation of an arbitrary song. It has a remote control unit (remote control) 14 for performing, and a receiving unit 15 for receiving a signal for designating an arbitrary song transmitted from the remote control 14 and supplying it to the system controller 13.

Next, the operation of the disc reproducing apparatus according to this embodiment having such a configuration will be described. First, the user uses the remote controller 14 to specify an arbitrary song. As a result, the remote controller 14 transmits a signal indicating the designated music piece. The signal indicating the designated music transmitted from the remote controller 14 is received by the receiving unit 15 and supplied to the system controller 13.

When the system controller 13 is supplied with a signal designating an arbitrary music piece from the receiving section 15,
The second spindle motor 8 is controlled to rotate at, for example, a constant linear velocity or a constant angular velocity, and the second optical system 9 is moved to a portion where the intro data of the designated song is recorded. To control. As a result, the intro data of the designated song is reproduced from the intro disk 7.

The intro data reproduced by the second optical system 9 is the second time data detection circuit 10 described above.
And D / A converter 11. The second time data detection circuit 10 detects time data from the intro data and supplies it to the system controller 13. The D / A converter 11 forms an intro audio signal by converting the audio data of the intro data into an analog signal, and supplies this to the mixer 12.

The system controller 13 performs the D / A conversion until the start of the running performance between the reproduction of the intro data, which will be described later, and the reproduction of the normal audio data from the normal reproduction disk 1. The mixer 12 is controlled so that only the intro voice signal from the device 11 is output. The intro voice signal from the mixer 12 is supplied to the amplifier 16.

The amplifier 16 amplifies the intro voice signal with a predetermined gain and supplies it to the speaker device 17. As a result, as shown in FIG.
For example, at a time t1 one second after the music is designated by the remote controller 14, the speaker device 17 outputs a so-called intro of an arbitrary music which is an intro voice signal.

Here, the intro disc 7 has the disc 1 for normal reproduction in which the normal audio data of the designated song is recorded, and the disc changer mechanism 2 mounts it on the first player 18. The intro data for the time required to start the reproduction of the designated music is recorded. Specifically, the disc changer mechanism 2 mounts the disc 1 for normal reproduction on the first player 18 and, for example, 12 discs before the reproduction is started.
If it takes seconds, as shown in FIG.
Intro data for a total of 13 seconds from time t1 to time t6 is recorded for one song.

The system controller 13 is a disc for normal reproduction in which the recording data of a designated song among the plurality of discs for normal reproduction 1 is recorded while the intro voice signal is being sounded. 1 is selected and the disc changer mechanism 2 and the first player 18 are controlled so that the normal audio signal of the designated music is reproduced.

When the selection of the normal reproduction disk 1 by the disk changer mechanism 2 is completed, the system controller 13 causes the first spindle motor 3 to operate.
Is controlled to rotate at a constant linear velocity or a constant angular velocity, for example, and the first optical disc is reproduced so as to reproduce the normal reproduction data of the designated music recorded on the selected normal reproduction disc 1. Control system 4.

It is to be noted that, until the normal reproduction data disc 1 thus designated is selected and reproduction of the normal reproduction data is started, for example, time t0 to time t shown in FIG.
It takes 7 seconds, which is up to 2.

The normal reproduction data from the normal reproduction disk 1 reproduced by the first optical system 4 is supplied to the first time data detection circuit 5 and the D / A converter 6. The first time data detection circuit 5 detects time data from the normal reproduction data to form time detection data, and supplies this to the system controller 13.

The D / A converter 6 forms a normal audio signal by converting only the audio data of the normal reproduction data into an analog signal, and supplies this to the mixer 12.

As described above, the intro data is 13
Only minutes are recorded for seconds. Therefore, the system controller 13 causes the first time data detection circuit 5 to
From the time detection data of the normal audio data supplied from the above and the time detection data of the intro data supplied from the second time data detection circuit 10, the portion of the normal reproduction disk 1 being currently reproduced and the above Knowing which part of the intro disk 7 is currently being reproduced, the reproduction of the normal reproduction data catches up with the reproduction of the preceding intro data, and the reproduction part of the intro data and the reproduction part of the normal reproduction data are the same. The tuning performance is performed so as to control the first optical system 9 so that

This running performance is performed, for example, for 3 seconds from time t2 to time t3 when the reproduction of the normal voice data shown in FIG. 2B is started. The system controller 13 controls the mixer 12 so that the intro voice signal from the intro disk 7 is selected until the adjustment performance is completed.

When the running performance is completed, that is, when the current reproducing portion of the normal reproducing disc 1 and the current reproducing portion of the intro disc 7 become the same, the system controller 13 is operated. Is
During a period of, for example, 2 seconds shown from time t3 to time t5 in FIG. 2C, the selection rate of the intro voice signal is gradually lowered and the selection rate of the normal voice signal is gradually increased. Cross fade is performed to control the mixer 12.

As a result, the intro voice signal and the normal voice signal are cross-faded at time t4 which is one second after the time t3 shown in FIG. 2C, and at time t5, the intro voice signal is replaced by the intro voice signal. Only the normal audio signal is output from the mixer 12.

As described above, the normal audio signal output from the mixer 12 is supplied to the speaker device 17 via the amplifier 16 and is sounded. Since the crossfade between the intro audio signal and the normal audio signal is performed within the disc exchange reproduction, it is not recognized by the user. Therefore, the accompaniment is started immediately after the music is designated, and the time for the disc selection work can be substantially shortened.

As is clear from the above description, the disc reproducing apparatus according to the present embodiment is the intro data which is the data of only the intro portion of all the songs recorded on the plurality of normal reproduction discs 1 for the predetermined time. When an arbitrary music piece is designated, an intro data corresponding to the designated music piece is first reproduced from the intro disk 7 and sounded. Next, while the intro data is being reproduced, the normal reproduction disc 1 in which the accompaniment of the designated song is recorded is selected from the plurality of normal reproduction discs 1 to start reproduction. Performing an adjusting performance for reproducing the same data portion of the normal reproduction data of the normal reproduction disk 1 and the intro data of the intro disk 7, and gradually after the lapse of a predetermined time from the start of the adjusting performance, The mixer 12 is controlled so that the output of the intro data is reduced and, conversely, the output of the normal reproduction data is gradually increased.

As a result, as soon as a music piece is designated, the accompaniment of the designated music piece can be pronounced.
The disk selection time can be shortened. Therefore, it is possible to eliminate the troublesomeness of waiting the time for selecting the disk.

In the above description of the embodiment, it is assumed that the audio data and the time data are recorded on the normal reproduction disk 1 or the intro disk 7.
Image data may also be recorded. Further, it goes without saying that the disc selection time, the running performance time, etc. are not limited to the numerical values such as 7 seconds and 3 seconds.

In the above description of the embodiment, the intro data is recorded on the intro disk 7 which is an optical disk, but the intro data is recorded in a semiconductor memory such as so-called RAM or ROM. May be.

[0034]

In the disc reproducing apparatus according to the present invention, the control means controls the disc exchanging means so that the disc for normal reproduction in which the designated recording data is recorded is selected, and the disc exchanging means is designated. The intro memory reproducing section is controlled so that the intro data corresponding to the recorded data is reproduced, and when the reproduction of the recorded data of the normal reproduction disk is started, the reproduced intro data is recorded. Instead, by controlling the crossfade means so that the recording data of the disc for normal reproduction is output, it is possible to start accompaniment of the designated song as soon as the song is designated, Substantially, the time required for selecting the disk can be shortened.

Therefore, it is possible to eliminate the troublesomeness of waiting the time for selecting the disk.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a disc reproducing apparatus according to the present invention.

FIG. 2 is a time chart for explaining the operation of the disc reproducing apparatus of the above embodiment.

[Explanation of symbols]

 1 --- Normal playback disk 2 --- Disk changer mechanism 3 --- First spindle motor 4 --- ...... First optical system 5 ...... First time data detection circuit 6 ・ ・ ・ ・ ・ D / A converter 7 ・ ・ ・・ ・ ・ ・ ・ ・ ・ ・ ・ Intro disk 8 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Second spindle motor 9 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Second optical system 10 ・ ・ ・ ・ ・ ・-Second time data detection circuit 11 --- D / A converter 12 --- Mixer 13 --- System controller 14 ---・ ・ ・ ・ ・ ・ Remote control unit (remote control) 15 ・ ・ ・ ・ Reception unit 16 ・ ・ ・ ・ ・ Amplifier 17 ・ ・ ・ ・ ・ Speaker device 18 ・ ・・..... first player 19 ......... second player

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location G11B 27/10 A 8224-5D

Claims (1)

[Claims] 1. A plurality of disks for normal reproduction in which arbitrary recording data is recorded, and recording data for a predetermined time from a recording start portion of all recording data recorded on the plurality of disks for normal reproduction. And an intro memory in which the intro data is recorded, a disk exchange means for selecting a normal reproduction disk in which specified recording data is recorded from the plurality of normal reproduction disks, and the disk exchange A normal reproduction disc reproducing section for reproducing the recorded data recorded on the normal reproduction disc selected by the means, and an intro data reproducing section for reproducing the intro data recorded in the intro memory, The recorded data reproduced by the disc reproducing unit for normal reproduction or the data reproduced by the intro memory reproducing unit. The cross-fade means for outputting the toro data and the disc exchanging means are controlled so that the disc for normal reproduction on which the designated record data is recorded is selected, and the intro corresponding to the designated record data is selected. The intro memory reproducing section is controlled so that the data is reproduced, and when the reproduction of the record data of the normal reproduction disc is started, the normal reproduction disc is replaced with the intro data being reproduced. And a control means for controlling the crossfade means so that the recorded data of 1. is output.