JPH11162104A - Audio recording and reproducing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To record a PCM audio onto a cue track in a non-linear editing which uses an N-bold speed VTR. SOLUTION: An N-fold speed image and audio information transferred to a hard disk or the like is read out, and the audio information is extracted by a frame data separating section 11 with four frames being combined as a unit. These information is recorded at four quadruple speed onto a helical track of a magnetic tape to be transferred, and the audio information in one frame among the four frames is selected by a frame selecting section 13. This information is supplied to a deshuffling section 14 and a PCM audio signal is demodulated. The resultant signal is subjected to a D/A conversion after a time amusement, and an analog audio signal is recorded onto a cue track.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio recording / reproducing apparatus for recording audio information on a linear track of a transfer destination recording medium and monitoring audio during high-speed editing of video information and audio information. .

[0002]

2. Description of the Related Art In a broadcasting field using a camera-integrated digital VTR (referred to as digital CVR) and a studio digital VTR, a non-linear editing system for editing recorded video information and audio information at N times speed (high speed) is demanded. Have been. Assuming that the speed of high-speed reproduction and high-speed recording is four times that of normal reproduction recording (N = 4), when a non-linear edit is performed by reproducing a magnetic tape recorded at 1 × speed at a 4 × speed using a VTR for a studio. There has been proposed a video server that transfers information to a hard disk at a quadruple speed and records specific video information held on the hard disk again on a magnetic tape at a quadruple speed.

In such a video server, a VTR dedicated to 4 × speed and a hard disk drive which reads information from the VTR at 4 × speed while holding a predetermined track format, and temporarily records and reads the information are provided. Is provided. The video information output from this hard disk is stored in a 4x VTR in the video server.
Is recorded (transferred) on a magnetic tape at a quadruple speed.

[0004] Even in such a situation, the diameter and track format of the rotating drum used in the studio VTR and the portable VCR must be the same. In particular, to perform quadruple-speed recording / reproduction without changing the rotation speed of the rotating drum, it is necessary to increase the number of recording / reproducing heads in the rotating drum, as well as quadrupling the traveling speed of the magnetic tape. .

FIG. 5 shows a track format of the magnetic tape 1. As shown in the figure, as a track format of the magnetic tape 1, a helical track 1a for recording video information and audio information, and a C for recording a control signal
A TL track 1b and a cue track 1c for recording auxiliary data are provided. Helical truck 1a
Is repeated as a pair of a right azimuth track and a left azimuth track, and information of a predetermined frame is divided and recorded. The helical track 1a is provided with a video area VA for recording video information, an audio area AA for recording audio information, a subcode area SA for recording various data, and a pilot signal for ATF servo. I have.

The cue track 1c is a linear track provided along the upper edge of the magnetic tape 1, and records auxiliary data for searching recorded video information.
However, anything may be recorded on the cue track 1c, which is open to the user.

The information on the helical track 1a is read by a recording / reproducing head or a reproducing head mounted on a rotating drum, whereas the information on the cue track 1c is read from a fixed drum provided behind the tape running when viewed from the rotating drum. Read by the head. Since the scanning speed of the cue track 1c with respect to the fixed head is slow, the amount of recordable information of the cue track 1c is smaller than the amount of information of the helical track 1a per frame.

In such a track format, 1
Zero track corresponds to one frame, and each track is scanned substantially simultaneously by a total of four sets of recording / reproducing heads provided on the rotating drum. In a 1 × rotating drum such as a VCR, one frame of information is recorded in 5 rotations. In a 4 × VTR such as a video server, 40 tracks are scanned in the same 5 rotations and the information of 4 frames is recorded. Record and play back. Also, since the video information and the audio information are compressed and shuffled and relocated to the blocks of each track, the data cannot be demodulated unless the data of the track numbers T0 to T9 is reproduced collectively in sector units.

[0009]

In non-linear editing for assemble editing and insert recording, video recorded on a magnetic tape is played back at high speed N times by a VTR, and the video is cut at a specific frame of a certain scene. Considering the case of recording or inserting a video of another scene from the editing start point, it is desirable to find a break in the audio signal as the editing start point and record the video of another scene. For this reason, the video editor performs editing work while monitoring the audio recorded on the magnetic tape.

In the vicinity of the editing start point, an operation of N-speed playback → 1 × -speed playback → Slow playback → Still playback using the jog dial or an operation of Still playback → Slow playback → 1 × speed playback → N × -speed playback is performed. Do. At this time, when the helical track is scanned at the regular quadruple speed by the quadruple speed VTR, the recording / reproducing head can trace along the helical track. In this case, the pitch of the sound is quadrupled, but the audio information can be demodulated without interruption.

On the other hand, in the case of reproducing at 1 × speed with a VTR dedicated to 4 × speed, the running speed of the magnetic tape is reduced to ４ times, and all helical tracks are used by using all recording / reproducing heads mounted on a rotating drum. The audio information that can be collected from the video is connected to reproduce the audio signal. The speed ratio is +
In the slow reproduction of 1 to -0.43, partial audio information collected from each helical track is converted into a discontinuous audio signal, and is converted into a continuous audio signal by interpolation processing. Further, in high-speed reproduction with a speed ratio other than 4, the recording / reproducing head obliquely crosses the helical track, so that the recording data collection blocks are dispersed, and audio information cannot be continuously demodulated.

The present invention has been made in view of such a conventional problem, and in order to facilitate the editing operation of video, audio information can be recorded or reproduced on a cue track of a magnetic tape in an analog system. It is another object of the present invention to realize an audio recording / reproducing apparatus capable of performing an editing operation while listening to a sound without an instantaneous interruption regardless of a speed ratio.

[0013]

SUMMARY OF THE INVENTION In order to solve such a problem, the invention according to claim 1 of the present application reproduces and reads out audio information from a first recording medium at N times speed, and runs at N times speed. The audio information is transferred and recorded on a helical track of a second recording medium in units of frames.
An audio recording / reproducing apparatus for recording an analog audio signal on a linear track of a recording medium, wherein the k-th frame group data composed of N frames read from the first recording medium is written as Nk, Nk + 1, Nk + 2 , ...,
A frame data separation unit for separating into Nk + (N-1) th frame data; audio information of N frames separated by the frame data separation unit; rearranged in frame order; Nk + i (i = 0 to Nk + i) from a signal processing unit that converts the signal into a track recording signal and the N frames separated by the frame data separation unit.
A frame selecting unit for selecting the (N-1) th frame), a deshuffling unit for deshuffling the audio information of the frame selected by the frame selecting unit and converting it into PCM audio information, and a deshuffling unit. And a monitor audio signal output unit for adjusting the time of the PCM audio information output from the second unit, converting the audio information into an analog audio signal, and outputting a recording signal of a linear track of the second recording medium. Things.

According to the invention of claim 2 of the present application, the audio information is reproduced from the first recording medium at N times speed and read out at high speed.
An audio recording / reproducing apparatus for transferring and recording the audio information in a frame unit on a helical track of a second recording medium running at double speed, and thinning out the audio information in a frame unit to output a monitor audio signal. , The k-th frame group data composed of N frames read from the first recording medium are represented by Nk, Nk + 1, Nk + 2,.
A frame data separation unit for separating into Nk + (N-1) th frame data, and audio information of N frames separated by the frame data separation unit are rearranged in frame order, Nk + i (i = 0) is obtained from a signal processing unit for converting the signal into a helical track recording signal and N frames separated by the frame data separation unit.
And a deshuffling unit that deshuffles the audio information of the frame selected by the frame selecting unit and converts it into PCM audio information. And a monitor audio output unit that adjusts the time of the PCM audio information output from the unit, converts the information into an analog audio signal, and outputs monitoring audio.

[0015] According to a third aspect of the present invention, audio information is reproduced from the first recording medium at high speed at N times speed and read out.
An audio recording / reproducing apparatus for transferring and recording the audio information in frame units on a helical track of a second recording medium running at double speed and recording an analog audio signal on a linear track of the second recording medium, The first
.., Nk, Nk + 1, Nk + 2,...
A frame data separation unit for separating into Nk + (N-1) th frame data; audio information of N frames separated by the frame data separation unit; rearranged in frame order; A signal processing unit for converting into a track recording signal, and a deshuffling / delaying unit for performing deshuffling and time adjustment of the audio information of the N frames separated by the frame data separation unit for each frame, and converting the audio information into PCM audio information. A frame data multiplexing unit for multiplexing the N frame data output from the deshuffling / delaying unit in chronological order; and setting the frequency band of the audio information of the PCM output from the frame data multiplexing unit to 1 / N, converting the audio information output from the filter unit into an analog audio signal, Is characterized in that it comprises a monitor audio signal output unit for outputting a recording signal linear track body, the.

According to the invention described in claim 4 of the present application, audio information is reproduced from the first recording medium at N times speed and read out at high speed.
An audio recording / reproducing apparatus for transferring and recording the audio information in a frame unit on a helical track of a second recording medium running at double speed, converting the audio information into a monitor audio signal, and outputting the monitor audio signal; , Nk + 1, Nk + 2... Nk + (N−
1) A frame data separation unit for separating the frame data into numbered frame data, and the audio information of the N frames separated by the frame data separation unit are rearranged in the frame order, and the recording signal of the helical track of the second recording medium is recorded. A de-shuffling / delaying unit that performs de-shuffling and time adjustment of the audio information of the N frames separated by the frame data separation unit for each frame, and converts the audio information into PCM audio information; A frame data multiplexing unit that multiplexes the N frame data output from the delay unit in a time-series order, and the frequency band of the PCM audio information output from the frame data multiplexing unit is 1 / N
And a monitor audio output unit that converts audio information output from the filter unit into an analog audio signal and outputs monitoring audio.

According to a fifth aspect of the present invention, audio information is reproduced at high speed at N times speed from the first recording medium and read out.
An audio recording / reproducing apparatus for transferring and recording the audio information in frame units on a helical track of a second recording medium running at double speed and recording an analog audio signal on a linear track of the second recording medium, The first
.., Nk, Nk + 1, Nk + 2,...
A frame data separation unit for separating into Nk + (N-1) th frame data; audio information of N frames separated by the frame data separation unit; rearranged in frame order; A signal processing unit that converts the signal into a track recording signal, a filter unit that limits the frequency band of audio information of the frame read from the first recording medium to 1 / N, and audio information that is output from the filter unit A deshuffling unit for deshuffling and converting the PCM audio information into PCM audio information, and converting the PCM audio information output from the deshuffling unit into an analog audio signal by time adjustment, and recording the linear track on the second recording medium. And a monitor audio signal output unit for outputting a signal.

According to the invention of claim 6 of the present application, audio information is reproduced from the first recording medium at N times speed and read out at high speed.
An audio recording / reproducing apparatus for transferring and recording the audio information in a frame unit on a helical track of a second recording medium running at double speed, and thinning out the audio information in a frame unit to output a monitor audio signal. , The k-th frame group data composed of N frames read from the first recording medium are represented by Nk, Nk + 1, Nk + 2,.
A frame data separation unit for separating into Nk + (N-1) th frame data, and audio information of N frames separated by the frame data separation unit are rearranged in frame order, A signal processing unit that converts the signal into a helical track recording signal, and a frequency band of audio information of a frame read from the first recording medium is 1 / N.
A de-shuffling unit for de-shuffling the audio information output from the filter unit to convert it to PCM audio information, and a time adjustment of the PCM audio information output from the de-shuffling unit for analog audio. A monitor audio output unit that converts the signal into a signal and outputs a monitor audio.

According to the invention of claim 7 of the present application, the audio information is reproduced from the first recording medium at a high speed at N times speed and read out.
An audio recording / reproducing apparatus for transferring and recording the audio information in frame units on a helical track of a second recording medium running at double speed and recording an analog audio signal on a linear track of the second recording medium, The first
.., Nk, Nk + 1, Nk + 2,...
A frame data separation unit for separating into Nk + (N-1) th frame data; audio information of N frames separated by the frame data separation unit; rearranged in frame order; A signal processing unit for converting into a track recording signal, a deshuffling unit for deshuffling the audio information of the N frames separated by the frame data separation unit for each frame, and converting it into PCM audio information, and an output from the deshuffling unit A delay processing unit for outputting the obtained N frame data in chronological order,
A frame data multiplexing unit for multiplexing the N frame data output from the delay processing unit, and converting the PCM audio information output from the frame data multiplexing unit into an analog audio signal; A monitor audio signal output unit for outputting a recording signal of a linear track of a recording medium.

According to the invention of claim 8 of the present application, audio information is reproduced from the first recording medium at N times speed and read out at high speed.
An audio recording / reproducing apparatus for transferring and recording the audio information in a frame unit on a helical track of a second recording medium running at double speed, converting the audio information into a monitor audio signal, and outputting the monitor audio signal; , Nk + 1, Nk + 2... Nk + (N−
1) A frame data separation unit for separating the frame data into numbered frame data, and the audio information of the N frames separated by the frame data separation unit are rearranged in the frame order, and the recording signal of the helical track of the second recording medium is recorded. A de-shuffling unit for de-shuffling the audio information of the N frames separated by the frame data separation unit for each frame to convert the audio information into PCM audio information; and a N-channel output from the de-shuffling unit. A delay processing unit that outputs the frame data in time series, a frame data multiplexing unit that multiplexes the N frame data output from the delay processing unit, and a PCM that is output from the frame data multiplexing unit. A monitor audio output unit that converts audio information into an analog audio signal and outputs audio for monitoring It is an feature.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An audio recording / reproducing apparatus described below is an apparatus provided between a hard disk drive in a video server and a quadruple speed VTR in a non-linear editing system. Then, a part of the audio information output from the hard disk drive is extracted, and the audio information is recorded on the cue track of the magnetic tape or an audio signal for monitoring is output. Although the frame data described below includes compressed video information and PCM audio signals, the description of the audio information processing is limited here. The hard disk of the hard disk drive is used as the first recording medium, and the magnetic tape shown in FIG.
Recording medium.

(Embodiment 1) An N-speed audio recording / reproducing apparatus according to Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of the audio recording / reproducing apparatus according to the first embodiment. The audio recording / reproducing apparatus 10A includes a frame data separating unit 1
1, signal processing unit 12, frame selection unit 13, deshuffling unit 14, delay processing unit 15, first D / A conversion unit 1
6, a second D / A converter 17, an audio output unit 18, a fixed head 19, and a rotating drum 20.

The frame data separation unit 11 receives N frames (here, 4 frames, and the same applies to other embodiments) of audio information output via the digital interface A (DIF-A) and The th frame,
4k + 1 frame, 4k + 2nd frame, 4k
The data is separated into k + 3rd frame data (k is an integer representing a frame group). The signal processing unit 12 converts the video information and audio information of each separated frame into a digital VTR.
And output to each recording / reproducing head mounted on the rotating drum 20 of the VTR.

The frame selection unit 13 outputs the four types of frame data output from the frame data separation unit 11 and the DIF
-B, input the data output, and select any one of a total of five types of data. The deshuffling unit 14 deshuffles the audio information of the audio sector and converts it into coherent audio information, that is, a PCM audio signal.

The fixed head 19 for writing / reading to / from the cue track is provided behind the tape running when viewed from the recording / reproducing head of the helical track. Therefore, the delay processing unit 15 adjusts the time so that the recording timing of the video information and the recording timing of the audio information of each frame match on each head, and the selected one frame of the audio information is the four-frame period of the magnetic tape. Is controlled to be distributed among the cue tracks.

The first D / A converter 16 includes a delay processor 15
Is converted into an analog audio signal, and an audio signal for recording is output to the fixed head 19. The second D / A conversion unit 17 converts the PCM audio signal output from the delay processing unit 15 into an analog audio signal, and outputs the analog audio signal to an audio output unit 18 including a speaker.

The fixed head 19 for writing at the cue track is used for a 1x speed. The audio information recorded on the cue track is reproduced at four times the normal pitch when the magnetic tape runs at four times the speed, but there is no instantaneous interruption of sound. Also, the speed ratio N is increased from 4 to 1
When the speed is changed to, the sound without instantaneous interruption is smoothly recorded or monitored in accordance with the speed change. Also, since the audio signal is recorded in analog, a data demodulation circuit corresponding to the reproduction speed is not required, and the audio can be monitored with a simple configuration.

The delay processing section 15 and the D / A conversion section 16
Achieves the function of a monitor audio signal output unit that converts the PCM audio signal output from the deshuffling unit 14 into an analog audio signal by time adjustment and outputs a recording signal of a linear track on the second recording medium. Shall be Further, the delay processing unit 15 and the D / A conversion unit 17 adjust the time of the PCM audio signal output from the deshuffling unit 14, convert the PCM audio signal into an analog audio signal, and output a monitor audio to the monitor audio output unit. Has achieved the function.

(Embodiment 2) An N-speed audio recording / reproducing apparatus according to Embodiment 2 of the present invention will be described with reference to the drawings. FIG. 2 is a block diagram of the audio recording / reproducing apparatus according to the present embodiment. The same parts as those in FIG. 1 are denoted by the same reference numerals, and detailed description is omitted. The audio recording / reproducing apparatus 10B includes a frame data separating unit 11, a signal processing unit 12, a rotating drum 20 according to the first embodiment.
, The deshuffle / delay unit 21 and the frame data multiplexing unit 2
2, filter unit 23, delay processing unit 15, D / A conversion unit 1
6, 17 and an audio output unit 18.

The deshuffle / delay section 21 has 4k, 4k + 1, 4k +
There are provided four sets of circuits for inputting 2, 4k + 3 frame data and performing deshuffling and delay processing on each frame. Each deshuffle / delay circuit de-shuffles the audio information recorded over a number of blocks in one frame, converts the audio information into coherent audio information, and arranges the data in a time-series manner. Adjust the time.

The frame data multiplexing section 22 multiplexes audio information of four frames in the order of frames. In this state, the signal arrangement of the audio information at the time of recording the video becomes the same.
The filter unit 23 is composed of a decimation filter,
The frequency band of the PCM audio signal output from the frame data multiplexing unit 22 is compressed to ４. D / A converter 1
6, 17 convert the PCM audio signal output from the filter unit 23 via the delay processing unit 15 into an analog signal. The band limit value of the audio signal is substantially equal to the D / A conversion unit 16,
17, the filter unit 2
3 prevents aliasing distortion generated in the D / A converters 16 and 17. The connection positions of the deshuffle / delay unit 21 and the frame data multiplexing unit 22 may be interchanged.
The output of the D / A converter 16 is provided to a fixed head 19, and the output of the D / A converter 17 is provided to an audio output unit 18. on the other hand,
The audio information output from the signal processing unit 12 is recorded in the audio area of the magnetic tape via the rotating drum 20.

When the audio signal is recorded on the cue track in this way, the audio signal of each frame is output continuously during the reproduction of the VTR, and the discontinuity of the sound caused by the thinning out of the frame is eliminated. Note that the high frequency component of the sound is
3, but when played back at 1x speed, bass,
The components of the middle tone region are output faithfully. When reproduced at 4 × speed, as in Embodiment 1, the reproduction is performed at 4 times the normal pitch, but there is no instantaneous interruption of sound. When the speed ratio N is changed from 4 to 1, a sound without instantaneous interruption is smoothly recorded in response to the speed change, or monitored from the sound output unit 18 similar to FIG.

(Embodiment 3) An N-speed audio recording / reproducing apparatus according to Embodiment 3 of the present invention will be described with reference to the drawings. FIG. 3 is a block diagram of the audio recording / reproducing apparatus according to the present embodiment. The same parts as those in FIG.

The audio recording / reproducing apparatus 10C includes a filter unit 31, a frame data separation unit 11, a signal processing unit 12, a rotating drum 20, a deshuffling unit 14, a delay processing unit 15, a first D / A conversion unit 16, 2, a D / A converter 17, an audio output unit 18, and a fixed head 19.

The filter section 31 is composed of a decimation filter, and outputs a signal from the hard disk drive.
The frequency band of double speed audio information is compressed to 1/4. In the second embodiment, the bandwidth is limited after multiplexing in the frame data multiplexing unit 22 as shown in FIG. 2, but in the present embodiment, the bandwidth is limited for audio information for four consecutive frames. In this case, the frame selection unit 13 shown in FIG.
, The band-limited audio information is directly provided to the deshuffling unit 14. In this case, the same effect as in the second embodiment can be obtained.

(Embodiment 4) An N-speed audio recording / reproducing apparatus according to Embodiment 4 of the present invention will be described with reference to the drawings. FIG. 4 is a block diagram of an audio recording / reproducing apparatus according to the present embodiment. The same parts as those in FIG. The audio recording / reproducing apparatus 10D is based on the premise that the fixed head 19 for recording information on the cue track has a characteristic capable of recording quadruple speed audio information.

The audio recording / reproducing apparatus 10D includes the same frame data separating section 11, signal processing section 12, rotary drum 20, deshuffling section 41, delay processing section 42, frame data multiplexing section 43, and delay processing as in the first embodiment. It comprises a unit 15, D / A conversion units 16, 17, an audio output unit 18, and a fixed head 19.

The deshuffling unit 41 outputs 4k, 4k + 1, 4k + 2,
4k + 3 frame data is input, and the audio information included in the audio sector is deshuffled. The delay processing unit 42 performs time adjustment on the audio information of each frame obtained from the deshuffling unit 41, and performs multiplexing in a time-series manner in units of four frames. The D / A conversion unit 16 converts the audio PCM data output from the frame data multiplexing unit 43 via the delay processing unit 15 into an analog signal, and outputs the analog signal to the fixed head 19. Then, quadruple speed recording is performed by the fixed head 19. On the other hand, the audio information output from the signal processing unit 12 is recorded in the audio area of the magnetic tape via the rotating drum 20.

Thus, the audio information of each frame is recorded on the cue track of the magnetic tape without being thinned.
When this magnetic tape is reproduced by a 1 × speed VTR, a sound close to the original sound can be heard using the fixed head 19.
Also, even if the sound is reproduced by an N-speed VTR, sound can be monitored at a pitch proportional to the speed ratio N.

In the above embodiment, the speed ratio N was set to 4, but the present invention is not limited to this value. When the speed ratio of the VTR is N, the frame data separation unit 11 converts the k-th frame group data composed of N frames read from the hard disk as the first recording medium into Nk, Nk + 1, Nk + 2,. (N-1)
No. frame data. The above-described audio information processing is also possible in editing between VTRs dedicated to 4 × speed.

[0041]

As described above, according to the present invention, when video information recorded on one recording medium is nonlinearly edited and transferred to another recording medium at high speed, assemble editing and insert editing while listening to the recorded audio are performed. It can be performed. Even if the playback speed of the high-speed VTR is made variable, the sound played from the cue track at that time does not cause an instantaneous interruption,
There is no stop of audio reproduction due to demodulation error. A
Sound can be output even when the TF servo is not applied.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an audio recording / reproducing apparatus according to Embodiment 1 of the present invention.

FIG. 2 is a configuration diagram of an audio recording / reproducing apparatus according to Embodiment 2 of the present invention.

FIG. 3 is a configuration diagram of an audio recording and reproducing device according to a third embodiment of the present invention.

FIG. 4 is a configuration diagram of a main part of an audio recording and reproducing device according to a fourth embodiment of the present invention.

FIG. 5 is a track format diagram of a magnetic tape.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Magnetic tape 1a Helical track 1b CTL track 1c Cue track VA video area AA audio area SA Subcode area 10A, 10B, 10C, 10D Audio recording / reproducing apparatus 11 Frame data separation part 12 Signal processing part 13 Frame selection part 14, 41 Deshuffling Unit 15, 42 Delay processing unit 16, 17 D / A conversion unit 18 Audio output unit 19 Fixed head 20 Rotary drum 21 Deshuffle / delay unit 22, 43 Frame data multiplexing unit 23, 31 Filter unit

Claims (8)

[Claims] 1. A method for reproducing and reading audio information from a first recording medium at N times speed at a high speed, transferring and recording the audio information on a helical track of a second recording medium running at N times speed in frame units, An audio recording / reproducing apparatus for recording an analog audio signal on a linear track of a second recording medium, wherein the k-th frame group data composed of N frames read from the first recording medium is represented by Nk, Nk + 1 , Nk +
2,..., Nk + (N−1) -th frame data separating unit; and N pieces of audio information separated by the frame data separating unit are rearranged in the frame order. A signal processing unit for converting the signal into a recording signal of a helical track of a recording medium of No. 2, and Nk + i (an arbitrary number of i = 0 to N-1) frames from the N frames separated by the frame data separation unit A deshuffling unit that deshuffles the audio information of the frame selected by the frame selection unit and converts the audio information into PCM audio information; and time-adjusts the PCM audio information output from the deshuffling unit. And a monitor audio signal output unit that converts the signal into an analog audio signal and outputs a recording signal of a linear track of the second recording medium. An audio recording / reproducing apparatus characterized by the above-mentioned. 2. A method for reproducing and reading audio information from a first recording medium at N times speed at a high speed, transferring and recording the audio information in a frame unit on a helical track of a second recording medium running at N times speed, and An audio recording / reproducing apparatus for decimating audio information on a frame basis and outputting an audio signal for monitoring, wherein k-th frame group data composed of N frames read from the first recording medium is represented by Nk, Nk + 1, Nk +
2... Nk + (N−1) -th frame data separating unit; and N pieces of audio information separated by the frame data separating unit are rearranged in the order of frames. A signal processing unit that converts the signal into a recording signal of a helical track of a recording medium; and an Nk + i (any number from i = 0 to N−1) frame is selected from the N frames separated by the frame data separation unit. A frame selecting unit, a deshuffling unit that deshuffles the audio information of the frame selected by the frame selecting unit and converts it into audio information of the PCM, and time-adjusts the audio information of the PCM output from the deshuffling unit. An audio recording / reproducing apparatus, comprising: a monitor audio output unit that converts an analog audio signal into an analog audio signal and outputs a monitor audio. . 3. A method for reproducing and reading audio information from a first recording medium at N times speed at a high speed, transferring and recording the audio information on a helical track of a second recording medium running at N times speed in frame units, and An audio recording / reproducing apparatus for recording an analog audio signal on a linear track of a second recording medium, wherein the k-th frame group data composed of N frames read from the first recording medium is represented by Nk, Nk + 1 , Nk +
2... Nk + (N−1) -th frame data separating unit; and N pieces of audio information separated by the frame data separating unit are rearranged in the order of frames. A signal processing unit for converting into a recording signal of a helical track of a recording medium; and audio information of the N frames separated by the frame data separation unit is converted into PCM audio information by performing deshuffling and time adjustment for each frame. A deshuffling / delaying unit; a frame data multiplexing unit for multiplexing the N frame data output from the deshuffling / delaying unit in chronological order; a frequency of PCM audio information output from the frame data multiplexing unit A filter unit for limiting the band to 1 / N; converting audio information output from the filter unit into an analog audio signal; Audio recording and reproducing apparatus characterized by comprising a monitor audio signal output unit for outputting a recording signal of the linear tracks of the second recording medium. 4. A method for reproducing and reading audio information from a first recording medium at N times speed at a high speed, transferring and recording the audio information in a frame unit on a helical track of a second recording medium running at N times speed, and An audio recording / reproducing apparatus for converting audio information into a monitor audio signal and outputting the converted signal, wherein the k-th frame group data composed of N frames read from the first recording medium is converted to Nk, Nk + 1, Nk +
2... Nk + (N−1) -th frame data separating unit; and N pieces of audio information separated by the frame data separating unit are rearranged in the order of frames. A signal processing unit for converting into a recording signal of a helical track of a recording medium; and audio information of the N frames separated by the frame data separation unit is converted into PCM audio information by performing deshuffling and time adjustment for each frame. A deshuffling / delaying unit; a frame data multiplexing unit for multiplexing the N frame data output from the deshuffling / delaying unit in chronological order; a frequency of PCM audio information output from the frame data multiplexing unit A filter unit for limiting a band to 1 / N, converting audio information output from the filter unit into an analog audio signal, Audio recording and reproducing apparatus characterized by comprising a monitor audio output unit, an outputting audio use. 5. A method for reproducing and reading audio information from a first recording medium at N times speed at a high speed, transferring and recording the audio information in frame units on a helical track of a second recording medium running at N times speed, and An audio recording / reproducing apparatus for recording an analog audio signal on a linear track of a second recording medium, wherein the k-th frame group data composed of N frames read from the first recording medium is represented by Nk, Nk + 1 , Nk +
2... Nk + (N−1) -th frame data separating unit; and N pieces of audio information separated by the frame data separating unit are rearranged in the order of frames. A signal processing unit that converts the signal into a recording signal of a helical track of a recording medium; a filter unit that limits the frequency band of audio information of a frame read from the first recording medium to 1 / N; an output from the filter unit A deshuffling unit for deshuffling the converted audio information to convert it into PCM audio information; and adjusting the time of the PCM audio information output from the deshuffling unit to convert it into an analog audio signal. An audio recording / reproducing apparatus comprising: a monitor audio signal output unit that outputs a recording signal of a linear track. 6. A method for reproducing and reading audio information from a first recording medium at N times speed at a high speed, transferring and recording the audio information on a helical track of a second recording medium running at N times speed in frame units, and An audio recording / reproducing apparatus for decimating audio information on a frame basis and outputting an audio signal for monitoring, wherein k-th frame group data composed of N frames read from the first recording medium is represented by Nk, Nk + 1, Nk +
2... Nk + (N−1) -th frame data separating unit; and N pieces of audio information separated by the frame data separating unit are rearranged in the order of frames. A signal processing unit that converts the signal into a recording signal of a helical track of a recording medium; a filter unit that limits the frequency band of audio information of a frame read from the first recording medium to 1 / N; an output from the filter unit A deshuffling unit for deshuffling the converted audio information to convert it to PCM audio information, and converting the PCM audio information output from the deshuffling unit into an analog audio signal by time adjustment, and outputting monitor audio. An audio recording / reproducing apparatus, comprising: a monitor audio output unit. 7. A method for reproducing and reading audio information from a first recording medium at N times speed at a high speed, transferring and recording the audio information in a frame unit on a helical track of a second recording medium running at N times speed, and An audio recording / reproducing apparatus for recording an analog audio signal on a linear track of a second recording medium, wherein the k-th frame group data composed of N frames read from the first recording medium is represented by Nk, Nk + 1 , Nk +
2... Nk + (N−1) -th frame data separating unit; and N pieces of audio information separated by the frame data separating unit are rearranged in the order of frames. A signal processing unit for converting the signal into a recording signal of a helical track of a recording medium; and a PCM for de-shuffling audio information of N frames separated by the frame data separating unit for each frame.
A deshuffling unit for converting the audio data into a plurality of audio information; a delay processing unit for outputting the N frame data output from the deshuffling unit in chronological order; and a frame for multiplexing the N frame data output from the delay processing unit. A data multiplexing unit; a monitor audio signal output unit that converts audio information of the PCM output from the frame data multiplexing unit into an analog audio signal and outputs the analog audio signal as a recording signal of a linear track on the second recording medium; An audio recording / reproducing apparatus comprising: 8. The audio information is reproduced from the first recording medium at high speed at N times speed and read out, and the audio information is transferred and recorded on a helical track of the second recording medium running at N times speed in frame units. An audio recording / reproducing apparatus for converting audio information into a monitor audio signal and outputting the converted signal, wherein the k-th frame group data composed of N frames read from the first recording medium is converted to Nk, Nk + 1, Nk +
2... Nk + (N−1) -th frame data separating unit; and N pieces of audio information separated by the frame data separating unit are rearranged in the order of frames. A signal processing unit for converting the signal into a recording signal of a helical track of a recording medium; and a PCM for de-shuffling audio information of N frames separated by the frame data separating unit for each frame.
A deshuffling unit for converting the audio data into a plurality of audio information; a delay processing unit for outputting the N frame data output from the deshuffling unit in chronological order; and a frame for multiplexing the N frame data output from the delay processing unit. An audio system comprising: a data multiplexing unit; and a monitor audio output unit that converts audio information of the PCM output from the frame data multiplexing unit to an analog audio signal and outputs a monitor audio. Recording and playback device.