KR20080022382A - Method for fast forward playing on video record player and video record player therof - Google Patents

Abstract

A video record player and a fast forward play method thereof are provided to reproduce a corresponding sound signal normally during fast forward play. A video record player comprises storage mediums(10) storing recorded substances, user interface parts(12), a control part, de-multiplexers(13), an image reproducing part, buffers(15), and a sound reproducing part. The user interface parts provide an image signal of the recorded substances selected by a user and reproducing speed signals of the sound signal. The control part provides a reproducing control signal for reproducing the image signal and the sound signal according to the reproducing speed signals at each corresponding speed. The de-multiplexers separately outputs the recorded substances stored in the storage medium into the image signal and the sound signal in response to the reproducing control signal. The image reproducing part displays the separated image signal on a screen in response to the reproducing control signal. The buffers sequentially store every predetermined number of frames of the separated sound signal according to the reproducing speed of the selected sound signal. The sound reproducing part decodes at least portion of the frames stored on the buffer at normal speed in response to the reproducing control signal and outputs them as sound.

Description

Method for fast forward playing on video record player and Video record player therof}

1 is a block diagram of an apparatus for reproducing a recorded matter according to an embodiment of the present invention.

2 is a diagram showing an OSD screen for a user interface for selecting a recording reproduction speed according to an embodiment of the present invention.

3 is a flowchart illustrating a process of double-speed playback of a recording in the recording playback apparatus according to an embodiment of the present invention.

4 is a block diagram of a digital television receiver according to an embodiment of the present invention.

5 is a diagram illustrating an example of reproducing an audio signal at a normal speed during double speed reproduction of a recording according to an embodiment of the present invention.

6 is a flowchart showing a process of double-speed playback of a recording in a digital television receiver.

<Explanation of symbols for the main parts of the drawings>

10, 126: storage medium 11, 102: control unit

104: memory unit 12, 106: user interface unit

108: tuner 110: digital broadcast signal processing unit

112: TS decoder 114: first switching unit

116: analog broadcast signal processing unit 118: second switching unit

120: NT (NTSC) decoder 122: PVR

124: PVR control and encoder 128: third switching unit

13, 130: demultiplexer 15, 132: buffer

16, 136: audio decoder 14, 134: video decoder

17, 138: video processing unit 18, 140: audio processing unit

20, 146: audio amplifier 21, 148: speaker

19, 144: display unit

The present invention relates to a recording reproduction apparatus and a method for performing double speed reproduction in a recording reproduction apparatus.

In general, the recording playback apparatus does not allow the user to hear the audio output from the recording playback apparatus when the recording is played back at 2 times speed or 1/2 times speed. Here, the recording reproduction apparatus includes a laser disc player, a compact disc player or a personal video recorder (PVR) digital television receiver. The recording also usually includes a video signal and an audio signal.

Hereinafter, the prior art will be introduced by taking a digital television receiver as an example. Recently, digital television receivers have a personal recorder such as the PVR. Therefore, it is possible to store a program desired by the user and play the stored recording at a desired time.

For example, the television receiver including the PVR (Personal Video Recorder) includes a hard disk driver as a storage medium so that not only a broadcast signal received on the hard disk but also an external input signal from an external playback device may be used for the time shift function. By storing and reproducing accordingly, it is possible to satisfy various needs of the user.

Moreover, the time shift function, which is commercially available in recent years, enables a user to store and play a broadcast signal received in real time on a hard disk of the PVR in real time, thereby providing pause, reverse play, and double speed play for real time broadcast. It became possible.

In the conventional video reproducing apparatus, the video signal of the recording is reproduced at the set double speed at the double speed reproduction of the recording, but the audio signal of the recording is not reproduced at the set double speed. Therefore, in the case of the trick play (Trick Play), that is, only the video is watched on the screen, the audio is muted (Mute) can not be heard. However, there are cases where a user wants to listen to a corresponding voice along with the speeded image even when playing the speed. In this case, the user was uncomfortable because he could not hear the corresponding voice.

SUMMARY OF THE INVENTION An object of the present invention is to provide a recording playback apparatus and a method for performing double speed playback in a recording playback apparatus capable of playing back a corresponding audio signal at a normal speed even when playing back a video signal of a recording.

In order to achieve the above object, the present invention synchronizes the video signal and the audio signal of the recording separately and controls the decoding speed separately. Therefore, the video signal is reproduced at the set speed due to the different synchronization and decoding speeds, while the audio signal is reproduced at a normal speed, that is, 1x speed or at least according to the set speed, regardless of the set speed. Part is played back at normal speed. Meanwhile, the apparatus for reproducing a recording uses a buffer to sequentially store the audio signal of the recording in a predetermined number of frames before decoding to selectively reproduce at least a portion of the audio signal according to the double speed.

According to one embodiment of the present invention, a recording object reproducing apparatus includes: a demultiplexer for separately outputting recording material stored in a storage medium into the video signal and the audio signal in response to a playback control signal; An image reproducing unit which decodes the separated image signal at a reproduction speed of the selected image signal in response to the reproduction control signal and displays the same on a screen; A buffer for temporarily storing the separated voice signals sequentially in frames of a predetermined number according to a reproduction speed of the selected voice signal; And a voice reproducing unit configured to decode at least a portion of each of the predetermined number of frames stored in the buffer at a normal speed in response to the reproduction control signal and output the voice.

According to another aspect of the present invention, a method for performing double speed playback in a recording playback apparatus includes, if the user selects a double speed playback of the recording product, according to the playback signal speed for the video signal preset by the user. Reproducing a signal, and sequentially storing voice signal frames in a buffer in predetermined number units according to a reproduction speed for the audio signal of the recording product; And reproducing at least a portion of each of the predetermined number of audio signal frames stored sequentially according to the reproduction speed of the audio signal of the recording.

Preferably, the display apparatus may further include an OSD generation unit configured to display OSD data for a user interface so that reproduction speeds of video and audio signals are selected by a user on a screen.

Preferably, a part of the predetermined number of frames stored in the buffer is one frame.

Preferably, the reproduction speed of the audio signal is equal to the number of frames stored in the buffer.

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

The present invention is applicable to all devices that store and reproduce composite video signals. 1 is a block diagram showing an apparatus for reproducing a recorded matter according to the concept of the present invention.

First, the apparatus for reproducing a recording according to FIG. 1 includes a recorder 9 for storing a composite video signal as a recording in the storage medium 10 according to a recording control signal, and reproduction speed of video and audio signals of the recording selected by a user. A user interface unit 12 for providing a signal, and a controller 11 for providing a playback control signal for reproducing the video signal and the audio signal at a corresponding double speed according to the reproduction speed signals of the provided video signal and the audio signal, respectively. ), A demultiplexer 13 for separating the recording stored in the storage medium 10 into the video signal and the audio signal in response to the playback control signal, and the selected video in response to the playback control signal. An image reproducing unit 23 for decoding and displaying on a screen at a double speed; A voice reproducing unit 24 which decodes at least a portion according to the selected voice double speed and outputs the voice as a voice, and reproduces the double speed of the video signal and the voice signal on the screen under the control of the controller. An OSD generator 22 provides OSD (On Screen Display) data for selection.

Here, the image reproducing unit 23 includes a video decoder 14 for decoding the image signal from the demultiplexer 13 at the selected reproduction speed, a video processing unit 17 for processing a decoded image signal to be displayed, And a display unit 19 for displaying the image signal processed to be displayed on the screen. The voice reproducing unit 24 buffers the voice signal from the demultiplexer 13 to temporarily store frame-by-frame under the control of the control unit 11 to decode at least a portion at the selected reproduction double speed. ), An audio decoder 16 for decoding at least a portion of the voice signals temporarily stored in the buffer unit in the frame unit under the control of the control unit 11, and the audio processor processes audibly the decoded voice signals. The processor 18 includes an audio amplifier 20 for amplifying the audible audio signal at a predetermined amplification level, and a speaker 21 for outputting the amplified voice signal.

The recorder 9 is a personal video recorder (PVR) in the case of the digital television receiver, and the storage medium 10 is a hard disk driver. Meanwhile, the user interface unit 12 may be an operation panel mounted on a remote controller or the digital television receiver.

2 is a diagram illustrating an OSD screen for selecting a reproduction speed using a user interface when reproducing a recording according to an exemplary embodiment of the present invention.

According to FIG. 2, when the user selects a sub menu for trick play on the entire menu, an OSD for determining the video play speed and an OSD for determining the audio play speed are separately displayed on the screen. The user can set the playback speed of the video and audio using the UP and DOWN keys on each OSD. In Fig. 2, the video playback speed is set to 2x and the audio playback speed is set to 1x.

The television receiver may include an analog signal reception tuner for tuning the real time input signal and a digital signal reception tuner for tuning the real time input signal. In addition, the television receiver may include only one digital signal receiving tuner.

3 is a flowchart showing a method of reproducing a recording according to an exemplary embodiment of the present invention. According to FIG. 3, first, the control unit 11 checks whether the user has selected to play the recording. If playback of recordings is selected, it is again checked by the user whether recording playback speed is selected. If the double speed reproduction of the recording is not selected, the control unit 11 reproduces the video signal and the audio signal of the recording at the normal speed (ie, 1x speed), and if the normal speed reproduction of the recording is completed, the recording reproduction process. To exit.

On the other hand, if the playback speed of the recording is selected by the user, the control unit 11 confirms the playback speed of the video signal and the playback speed of the audio signal set by the user as shown in FIG. Then, the video signal and the audio signal are reproduced according to the checked double speeds. Subsequently, when the reproduction of the recording is completed according to the set double speeds, the entire reproduction process is terminated. According to Fig. 2, the video signal is reproduced at double speed, while the video signal is reproduced at double speed.

Hereinafter, a case where it is applied to a television broadcast receiver having a PVR will be described in detail with reference to FIGS. 4 to 6.

Hereinafter, the configuration of the television receiver will be described in more detail with reference to FIG. 4. 4 is a block diagram showing the configuration of a television broadcast receiver with a PVR.

In FIG. 4, the television broadcast receiver performs a control function largely and sets the reproduction speed of the video signal and the audio signal, respectively, according to a user's selection, and the control unit 102 controls one channel. A tuner 108 for tuning a broadcast signal, a digital broadcast signal processor 110 for processing a digital broadcast signal from the tuner 108, and an analog broadcast signal processor 116 for processing an analog broadcast signal from the tuner 108. ), A PVR 122 that stores and reproduces the digital broadcast signal or the analog broadcast signal under the control of the controller 102, the digital broadcast signal processor 110, the analog broadcast signal processor 116, or the PVR ( A third switching unit 128 for outputting a broadcast signal provided by 122, a memory 104 for storing other information of the broadcast signal, and a command signal according to a user selection; The broadcast signal output from the user interface unit 106 and the third switching unit 128 which are provided to the control unit 102 and transmit the reproduction speed of the video signal and the audio signal to the control unit 102 according to a user selection. Or a demultiplexer 130 that separates and outputs the recording into a video signal and an audio signal, a video signal playback processor 150 for displaying the video signal according to the set playback speed, and the audio signal according to the set playback speed. And a sound signal reproduction processing unit 152 to reproduce. On the other hand, reference numeral 142 indicates an OSD generation unit for generating and providing OSD data on the screen under the control of the controller 102.

The video signal reproducing processor 150 decodes the video signal at the set reproduction speed, the video decoder 138 processing the decoded video signal to display, and the display processing. And a display unit 144 for displaying the video signal on the screen. Meanwhile, the voice signal reproduction processor 152 temporarily stores the voice signal in a predetermined number of frame units, and the voice signal temporarily stored in the predetermined number of frames according to the set voice signal reproduction speed. An audio decoder 136 for selectively decoding at least a portion of the predetermined number of frames, an audio processor 140 for audibly processing the decoded voice signal, and an audio amplification for amplifying the audible voice signal with a predetermined amplification And a speaker 148 for outputting the amplified voice signal.

The control unit 102 controls the components of the television broadcast receiver as a whole, and in particular, sets the reproduction speed of the video signal and the audio signal separated from the recording to the same or different reproduction speed according to the user's selection. Perform.

The memory 104 stores a variety of information including the system program of the control unit 102, and in particular stores the set reproduction speed of the video signal and the audio signal selected by the user according to the preferred embodiment of the present invention. .

The user interface unit 106 is a keypad or a remote controller on a television receiver and provides various commands or information input from a user to the controller 102. In particular, the present invention performs the function of transmitting the reproduction speed of the video signal and the audio signal selected by the user to the control unit 102.

The tuner 108 tunes one channel according to the control of the controller 102 among broadcast signals received through airwaves or a cable, and among the broadcast signals received through the tuned channel, the digital broadcast signal is the digital broadcast. The analog broadcast signal is provided to the signal processor 110, and the analog broadcast signal is provided to the analog broadcast signal processor 116.

Meanwhile, the digital broadcast signal processor 110 includes a transport stream (TS) decoder 112 and a first switch 114. The TS decoder 112 decodes the digital broadcast signal provided by the tuner 108, converts the digital broadcast signal into an audio stream, a video stream, and a data stream and transmits the same to the first switching unit 114. The first switching unit 114 provides the audio stream, the video stream, and the data stream to the PVR 122 and / or the third switching unit 128 under the control of the control unit 102. The analog broadcast signal processor 116 includes a second switch 118 and an NT (NTSC) decoder 120. The second switching unit 118 receives the analog broadcast signal and an external input signal (from an external player such as a DVD) provided from the tuner 108, and receives one of these two signals from the control unit 102. Selected under the control of the provided to the NT (NTSC) decoder 120. The NT decoder 120 receives the analog broadcast signal or the external input signal and decodes the converted audio data and video data. Thereafter, the converted audio data and the video data are provided to the PVR 122 and the third switching unit 128.

The PVR 122 is composed of a PVR control and encoder 124 and a storage medium.

The PVR control and encoder 122 may receive the audio stream, the video stream, and the data stream output from the digital broadcast signal processing unit 110 under the control of the controller 102 and store the same in the storage medium 126. Alternatively, the audio data and the video data output by the analog broadcast signal processor 116 are encoded by an audio stream and a video stream, respectively, and stored in the storage medium 126.

The storage medium 126 is, for example, a hard disk driver including a hard disk, and stores an audio stream, a video stream, and the data stream provided by the PVR control and encoder 122. As described above, the audio stream, the video stream, and the data stream of the received digital broadcast signal may be stored in the storage medium 126, and the analog broadcast signal and the external input signal from the external playback device may be stored. The encoded audio and video stream may be stored. Meanwhile, the present embodiment relates to a time shift function for storing a broadcast signal of one channel in real time. Hereinafter, for convenience, the storage medium 126 will be abbreviated as storing a broadcast signal.

The third switching 128 outputs any one of broadcast signals from the first switching unit 114, the NT decoder 120, and the PVR 122 under the control of the control unit 102. Perform. A characteristic of the present invention corresponds to a case in which the audio signal is output at a normal speed when double-speed playback of the recording stored in the PVR 122 from the third switching unit 128.

The video decoder 134 decodes an image signal from the demultiplexer 130 at the set image reproduction rate and provides the decoded image signal to the video processor 138. Meanwhile, the audio decoder 136 selectively decodes a voice signal from the demultiplexer 130 according to the set voice reproduction speed from the buffer 132 and provides the decoded voice signal to the audio processor 140. In this case, the audio processor 140 and the video processor 138 may process one or more audio data and video data provided by the audio decoder 136 and the video decoder 132, respectively. This is necessary to simultaneously display two or more kinds of broadcast signals in a main area and at least one auxiliary area (PIP area) on one screen. In addition, the video processor 138 mixes the OSD data provided from the OSD generator 142 with the video data under the control of the controller 102 and provides the video data to the display unit 144.

Meanwhile, the audio processor 140 and the video processor 138 display one video signal from the PVR 122 on the entire area of the screen under the control of the controller 102, or the PVR ( The video signal from 122 is displayed on the main area of the screen, and the real time broadcast signal from the digital broadcast signal processor 110 or the analog broadcast signal processor 116 is displayed on the auxiliary area.

5 is a diagram illustrating an example of reproducing an audio signal at a normal speed during double speed reproduction of a recording according to an embodiment of the present invention.

According to FIG. 5, when the reproduction speed of the set voice signal is four times faster, the voice signal is reproduced four times faster than the normal speed. In this case, four times as many frames as the frames of the speech signal are reproduced. In this case, it is difficult for a user to recognize the reproduced voice signal. Therefore, in the present exemplary embodiment, the voice signal is stored in the buffer 132 of FIG. 4 in units of four frames. In order to reproduce the voice signal at a normal speed, the audio decoder 136 decodes only the first frame of each of the four frames stored in the buffer 132 at a normal speed under the control of the controller 102. . Then, the controller 102 refreshes the synchronization and jumps to the fourth frame following the frame position to be played next. Accordingly, the audio decoder 136 decodes only the first frame of four next frames stored in the buffer 132. As such, only the first frame of each of the four frames stored in the buffer 132 is decoded. Therefore, if the reproduction speed of the video signal and the audio signal are four times the same, the contents of the audio signal are partially outputted at the normal speed.

Hereinafter, a recording reproduction process in the television broadcast receiver according to a preferred embodiment of the present invention will be described with reference to the flowchart of FIG. 6.

In more detail, first, the control unit 11 checks whether the user has selected to play the recording. If playback of recordings is selected, it is again checked by the user whether recording playback speed is selected. If the double speed reproduction of the recording is not selected, the control unit 11 reproduces the video signal and the audio signal of the recording at the same normal speed (that is, 1x speed), and if the normal speed reproduction of the recording is completed, the recording material is completed. The playback process ends.

On the other hand, if the playback speed of the recording is selected by the user, the control unit 11 confirms the playback speed of the video signal and the playback speed of the audio signal set by the user as shown in FIG. Then, it is checked whether the reproduction double speed of the audio signal confirmed by the user is a normal reproduction speed (1x speed). If the reproduction speed of the audio signal is a normal reproduction speed (1 times speed), the recording signal during reproduction of the video signal of the recording stored in the PVR 122 at the set reproduction speed (ie, at least 2 times or more) The audio signal is reproduced at the normal speed (ie 1x speed). Subsequently, when the reproduction of the recording is completed at the set normal speeds (video signal, 2 times or more, and audio signal 1 times), the entire reproduction process is terminated.

On the other hand, as shown in FIG. 6, when the set reproduction speed is 2 times or more and the reproduction speed of the audio signal is also 2 times or more instead of the normal speed, the control unit 102 reads the image signal. The audio signal is reproduced at a set double speed or higher, and the voice signal is decoded according to the set double speed at least some of the frames temporarily stored in the buffer unit 132 in a predetermined number unit by the method shown in FIG. Therefore, the audio signal is reproduced at a normal speed by one frame per predetermined number of frames according to the set reproduction speed. That is, when the reproduction speed of the voice signal is doubled, the voice signal is temporarily stored in the buffer 132 in units of two frames by the control unit 102 and the control unit 102 refreshes the synchronization every corresponding time. Therefore, only one frame of the 2 frames is reproduced at a normal speed. Meanwhile, as another example, as shown in FIG. 5, when the reproduction speed of the audio signal is set to 4 times speed, the controller 102 temporarily stores the audio signal in the buffer 132 in units of four frames, and each of the four frames. Only one frame is played at normal speed. Therefore, only the one frame among the frames stored in the buffer 132 is reproduced at the normal speed, except that the synchronous refresh time interval varies according to the reproduction double speed. Here, according to the present embodiment, the video signal and the audio signal may be set at different reproduction speeds, but in order for the video signal and the audio signal to match with each other, it is preferable to have the same reproduction speed. It will mainly determine the playback speed at the same speed as each other. As a result, according to the present embodiment, even if the video signal is reproduced at a constant speed, at least a portion of the audio signal may be reproduced at a qualitative speed to match each scene of the video signal. Therefore, the user can hear a sound that matches each scene even in a fast double speed playback environment. Subsequently, after the recordings are all played back, the control unit 102 ends the recording playback process.

This embodiment can also be applied to the time shift function. That is, the controller 102 checks whether the user requests the storage of the input signal according to the time shift function through the user interface 106.

When the user requests the storage of the input signal according to the time shift function, the controller 102 stores the input signal in the storage medium 126 of the PVR 122 and stores information of the input signal in the memory. Stored in the section 104.

For example, when the user selects one display mode through the user interface unit 106, the control unit 102 displays the real time input signal and the stored input signal on the screen according to the display mode. Display with. That is, the display mode includes a first display mode for outputting the stored broadcast input signal according to the time shift function on the entire area of the screen, and the stored broadcast input signal according to the time shift function on the main area. And a second display mode for displaying and displaying the broadcast signal input in real time on an auxiliary screen such as the PIP area.

Meanwhile, the controller 102 receives the first display mode signal or the second display mode signal through the user interface unit 106 and stores the signal in the memory unit 104. As described above, after the input signal according to the time shift function is stored in the storage medium 126 and the selected display mode is stored in the memory unit 104, the control unit 102 is connected to the time shift function. Check whether the user requests to display the stored broadcast signal. That is, the controller 102 checks whether the user is requested to perform the time shift function by double speed playback such as pause of real time broadcast or normal speed playback or fast playback of the stored broadcast signal (or recording). do. Here, the time shift function also corresponds to one of the recording reproductions. Therefore, it will be apparent that the present invention can be applied equally.

When requested by the user to perform the time shift function, the control unit 102 provides information about the time shift function stored in the memory unit 104, that is, information about a display mode stored in the memory 104. Read out.

When the information about the display mode according to the time shift function is read, the controller 102 checks whether the display mode according to the time shift function is the first display mode or the second display mode. If the display mode is the first display mode, the controller 102 may output the PVR unit 122 and the third switching unit to output a broadcast signal stored according to the time shift function over the entire area of the screen. 128). At this time, the real-time broadcast signal is not displayed on the screen. Meanwhile, the user may select the voice mode through the user interface unit 106. In response to the provided voice mode signal, the controller 102 outputs the audio of the real time broadcast signal or the audio of the stored broadcast signal through the speaker 140. At this time, the user may also set the reproduction speed of the audio signal as described above, and store the frames of the speech signal in the buffer 132 in a predetermined number unit according to the reproduction speed set in the above-described method, and among them, Only one frame will be played at normal speed.

On the other hand, if the display mode according to the stored time shift function is the second display mode, the controller 102 outputs the stored broadcast signal (or recording) according to the time shift function to the main area and the PIP. The PVR unit 122 and the third switching unit 128 are controlled to output the real time broadcast signal (or input signal) to an area (or an auxiliary area). That is, the broadcast signal read out from the storage medium 126 is displayed on the main area of the screen according to the time shift function, and the broadcast signal received in real time is displayed on the auxiliary area. The broadcast signal is a broadcast signal of one channel. In this example, it is obvious that the present embodiment can be applied to an input signal reproduced from an external reproducing apparatus such as a DVD player or a broadcast signal of one channel.

On the other hand, along with the display of the stored broadcast signal according to the time shift function, the controller 102 displays OSD data indicating the progress state of the stored broadcast signal and the real-time broadcast signal according to the time shift function through the OSD generator 142. And generate the data to the video processor 138. The video processor 138 mixes the OSD data with the stored broadcast signal (or recording) or the video signal of the real-time broadcast signal to provide the mixed video data to the display unit 144 together. As a result, a guide OSD for the time shift function is displayed on the screen of the display unit 142 together with the stored broadcast signal according to the time shift function. Although not shown, the OSD data may include a progress bar showing a progress state of the stored broadcast signal or the real time broadcast signal.

As described above, according to the embodiments, the user may preset the reproduction speed of the video signal and the audio signal of the recording in the same or different manners, and the user may at least set the reproduction speed even if the reproduction speed is determined. You will hear some at normal speed. Meanwhile, the stored broadcast signal according to the time shift function is mainly displayed on the main area (or the first area), and at the same time, the real time broadcast signal is displayed on the auxiliary area (or the second area) such as the PIP area. By outputting, it is possible to check the progress of the real-time broadcast signal while displaying the stored broadcast signal according to the time shift function. In addition, the present embodiment includes a computer readable medium including program instructions for performing operations implemented by various computers. The computer readable medium may be configured alone or in combination with program instructions, data files, data structures, and the like. The program instructions on the medium may be those specially designed and constructed for the present embodiment, or they may be of the kind well-known and available to those having skill in the computer software arts.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible.

Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

Claims (8)

A storage medium storing recordings; A user interface unit for providing reproduction speed signals of a video signal and an audio signal of the recording selected by a user; A control unit for providing a reproduction control signal for reproducing the video signal and the audio signal at a corresponding double speed according to the provided reproduction double speed signals; A demultiplexer for separately outputting the recording stored in the storage medium into the video signal and the audio signal in response to the playback control signal; An image reproducing unit which decodes the separated image signal at a reproduction speed of the selected image signal in response to the reproduction control signal and displays the same on a screen; A buffer for temporarily storing the separated voice signals sequentially in frames of a predetermined number according to a reproduction speed of the selected voice signal; And a voice reproducing unit configured to decode at least a portion of each of the predetermined number of frames stored in the buffer at a normal speed in response to the reproduction control signal and output the voice. The method of claim 1, And an on-screen display (OSD) generator for providing OSD (On Screen Display) data for selecting a reproduction speed of the video signal and the audio signal by the user on the screen under the control of the controller. . The method of claim 1, And a decoded portion of each predetermined number of frames stored in the buffer is one frame. The method of claim 1, And a reproduction speed of the audio signal and the number of frames stored in the buffer are the same. Checking whether the recording speed is selected by the user; If the double speed reproduction of the recording is not selected, reproducing the video signal and the audio signal of the recording at a normal speed; If the playback speed of the recording is selected by the user, the video signal is reproduced according to the reproduction speed for the video signal of the recording material preset by the user, and the voice is reproduced in predetermined number units according to the reproduction speed for the audio signal of the recording. Sequentially storing the signal frames in a buffer; And And reproducing at least a portion of each of the predetermined number of audio signal frames stored in sequence according to the reproduction speed of the audio signal of the recording product at a normal speed. Way. The method of claim 5, wherein Before checking whether the recording speed playback is selected, a step of displaying OSD (On Screen Display) data for a user interface is selected by the user so that the playback speed of the video signal and the audio signal are respectively selected on the screen. How to feature The method of claim 5, wherein The decoded portion of each predetermined number of frames stored in the buffer is one frame. The method of claim 5, wherein Reproduction speed of the audio signal and the number of frames stored in the buffer at one time are the same.

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