JPH09120531A - Dubbing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To record a recording signal in a shorter time than its recorded time by providing a talking speed conversion circuit for converting a regenerative signal reproduced at a 2nd speed higher than a 1st speed into a large signal pitch and a driving means for moving a 2nd sound recording medium at a lower speed than the 2nd speed. SOLUTION: When a recorded signal of a recording tape 1 is to be dubbed to a recording tape 5, the recording tape 1 is moved, for instance, at a speed double as much as a specific moving speed. On the other hand, the recording tape 5 is moved at the specific moving speed. The recorded signal of the recording tape 1 moving at double the speed is reproduced at double the speed by a reproducing head RH1 . Then, this regenerative signal is inputted to the talking speed conversion circuit 3 to be converted into a regenerative signal with a signal pitch enlarged, and this regenerative signal is given to a recording head WH. Then, the regenerative signal is recorded from the recording tape 1 to the recording tape 5 used for dubbing by the recording head WH at the specific moving speed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dubbing device for reproducing a recording signal from a recording medium and recording the reproduced signal on another recording medium.

[0002]

2. Description of the Related Art A dubbing device is used to record a recording signal recorded on a recording medium on another recording medium to duplicate the recording signal on the recording medium. FIG. 2 is a block diagram of a main part of a conventional dubbing device. The recording tape 1 recorded at the specified moving speed is moved at a speed twice the specified moving speed, the recording signal of the recording tape is reproduced by the reproducing head RH ₁ , and the reproduced data reproduced is inputted to the preamplifier 2. Is amplified. The amplified reproduction signal is input to the recording amplifier 4 and amplified to a signal level capable of being recorded on the recording tape 5 for dubbing. The reproduction signal amplified by the recording amplifier 4 is given to the recording head WH and recorded on the recording tape 5 for dubbing which is moved by the recording head WH at a speed twice as fast as the specified moving speed.

The recording data recorded on the recording tape 5 is obtained by moving the recording tape 5 at a prescribed moving speed and reproducing head R.
Played at H ₂ . The reproduction signal reproduced by the reproduction head RH ₂ is input to the preamplifier 6 and amplified, and the amplified reproduction signal is amplified by the power amplifier 7 to a signal level capable of causing the speaker 8 to ring. The reproduction signal output from the power amplifier 7 is given to the speaker 8 so that the speaker 8 can be activated.

[0004]

As described above, in the conventional dubbing apparatus, both the recording tape on which the recording signal to be dubbed and the recording tape for dubbing which reproduces the reproduced signal are moved by the prescribed movement. Since it is moved at twice the speed, the time required for dubbing is halved with respect to the recorded time. However, when using a recording tape for dubbing that has a recordable time that is the same as the recorded time when the recording signal to be dubbed is being recorded, the number of recording tapes that have been dubbed each time dubbing is performed. Will increase and require a large storage space.

Further, a large number of recording tapes for dubbing must be purchased, which increases the purchase cost of the recording tapes. Furthermore, the recorded contents of conversations, lectures, etc. will be dubbed up to useless sound during the time when the talks are interrupted, and when listening to the dubbed conversations or lectures, more than the net time of the conversations, lectures, etc. There is a problem that it takes time.

In view of the above problems, the present invention does not require a large storage space for storing dubbed recording media,
Another object of the present invention is to provide a dubbing device which does not increase the cost of purchasing a recording medium for dubbing and can dubb conversations, lectures, etc. onto the recording medium for dubbing in the net time.

[0007]

A dubbing apparatus according to the present invention moves a first recording medium recorded at a first speed at a second speed which is equal to or higher than a first speed to generate a recording signal of the first recording medium. A dubbing device for reproducing the reproduced signal and recording the reproduced signal on a second recording medium, and a speech speed conversion circuit for converting the reproduced signal reproduced at the second speed into a signal having a signal pitch larger than the signal pitch of the reproduced signal. Driving means for moving the second recording medium at a speed equal to or lower than a second speed so as to record the converted signal converted by the speech speed conversion circuit on the second recording medium, and recording for recording the converted signal on the second recording medium. And a section.

In the present invention, the first recording medium is moved at the second speed which is equal to or higher than the first speed to reproduce the recording signal to be dubbed. The reproduced signal reproduced is converted into a signal having a signal pitch larger than the signal pitch. The second recording medium, the second
Move at a speed less than the speed and convert the converted signal to the second
Record on recording media. As a result, the recording signal to be dubbed can be recorded on the second recording medium in a time shorter than the recorded time of the first recording medium.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the drawings showing an embodiment of the invention. FIG. 1 is a block diagram of essential parts of a dubbing apparatus according to the present invention. The recording tape 1 recorded at the specified moving speed is moved at a speed twice the specified moving speed, and the recording signal of the recording tape is reproduced by the reproducing head RH ₁ . The reproduced signal reproduced by the reproducing head RH ₁ is input to the preamplifier 2 and amplified. The amplified reproduction signal is input to the speech speed conversion circuit 3 which shortens the time when the speech is interrupted and converts the speech into a signal having a signal pitch larger than the signal pitch of the reproduced signal, which is easy to hear. Is converted to.

For the speech speed conversion circuit 3, an IC manufactured by the applicant, model number LC85400E is used. When this speech speed conversion circuit is used, the reproduction is performed at twice the speed, so that the reproduced signal reproduced at the double speed, which is usually difficult to hear, has a large signal pitch, that is, the reproduced signal is easy to hear, and the talk is recorded. It is possible to convert the signal which has not shortened the time portion into a shortened signal. Then, the reproduction signal converted into the speech speed is input to the recording amplifier 4 and amplified to a signal level capable of being recorded on a recording tape for dubbing.
The reproduction signal amplified by the amplifier 4 is given to the recording head WH, and the reproduction signal is recorded by the recording head WH onto the recording tape 5 for dubbing which is moved at a specified moving speed by a driving means (not shown).

The recording signal recorded on the recording tape 5 is reproduced by the reproducing head RH ₂ . The reproduction signal reproduced by the reproduction head RH ₂ is input to the preamplifier 6 and amplified, and the amplified reproduction signal is supplied to the speaker 8 by the power amplifier 7.
Is amplified to a signal level capable of ringing. The reproduction signal output from the power amplifier 7 is given to the speaker 8,
The speaker 8 can be made to ring.

Next, the operation of this dubbing apparatus will be described.
When dubbing the recording signal of the recording tape 1 which is recording the recording signal to be dubbed onto the recording tape 5 for dubbing, the recording tape 1 is moved at a speed, for example, twice the specified moving speed. On the other hand, the recording tape 5 for dubbing is moved at a prescribed moving speed. Then, the reproducing head R
H ₁ reproduces the recording signal of the recording tape 1 moving at a double speed at a double speed. Then, after the reproduced signal reproduced is amplified by the preamplifier 2, it is input to the speech speed conversion circuit 3 to shorten the time during which the speech is not recorded and to increase the reproduced signal, that is, the signal pitch, in which speech is easily heard. It is converted into a reproduction signal having a signal pitch, the reproduction signal is further amplified by the recording amplifier 4, and then applied to the recording head WH. Then, by the recording head WH, the reproduction signal reproduced from the recording tape 1 is recorded on the recording tape 5 for dubbing which is moving at the specified moving speed, and the recording tape 5 is recorded at the specified moving speed on the recording tape 1. The recording signal will be dubbed.

When reproducing the recording signal recorded on the recording tape 5 for dubbing, only the recording tape 5 is moved at a prescribed moving speed, and the recording signal of the recording tape 5 is reproduced by the reproducing head RH ₂ . After the reproduced signal reproduced is amplified by the preamplifier 6, it is amplified again by the power amplifier 7 to a signal level that allows the speaker 8 to ring. Then, the reproduction signal amplified by the power amplifier 7 is applied to the speaker 8, the speaker 8 is activated in response to the reproduction signal, and sound is generated by the recording signal dubbed on the recording tape 5.

As a result, the recording signal recorded on the recording tape 1 is reproduced by moving the recording tape 1 at a double speed to compress the signal pitch. That is, when the recording tape 1 is a one-hour tape, the reproduction of the recording signal is completed in 30 minutes. Then, the reproduction signal having a reproduction time of 30 minutes is converted into a speech speed signal and recorded on the recording tape 5 for dubbing.
Since the recording tape 5 is moved at a prescribed moving speed by a driving means (not shown), a reproduction signal can be recorded on the recording tape 5 in a recording time of 30 minutes.

Therefore, the recording tape 5 for dubbing requires only 30 minutes of recordable time. That is, when dubbing a recording signal recorded on the recording tape 1 whose recorded time is one hour, if a recording tape for which the recordable time is one hour is used for dubbing, the recording time of the tape is half the recordable time. The dubbing can be completed within the recordable time. Therefore, it is possible to record the recording signals of two recording tapes whose recorded time is one hour on one recording tape for dubbing which has a recordable time of one hour, and the number of recording tapes for dubbing is reduced. It does not increase and is halved compared to the conventional case. As a result, the number of dubbed recording tapes does not increase each time dubbing is performed, and the storage location of dubbed recording tapes can be significantly reduced.

Further, the number of recording tapes 5 for dubbing can be reduced, and the purchase cost can be reduced. Further, when the recording signal to be dubbed is the content of a conversation, a lecture, etc., the reproduction signal reproduced from the recording tape for dubbing is reduced because the recording time is shortened and recorded on the recording tape for dubbing. It becomes the net time of conversation, lecture, etc., and the recorded contents can be heard in the net time.

In the embodiment of the present invention, the moving speed of the dubbing recording tape 5 is set to the specified moving speed. However, if the dubbing recording tape 5 is set to the specified moving speed or less, the dubbing recording tape 5 is used for the dubbing. Although the recordable time of the recording tape of is slightly longer, the recording tape for dubbing can have a shorter recordable time than the recording time of the recording tape on which the recording signal to be dubbed is recorded. The same effect can be obtained.

[0018]

As described in detail above, according to the present invention, the second recording medium having a recordable time shorter than the recorded time of the first recording medium recording the recording signal to be dubbed is used. It can be dubbed. In addition, the storage location of the second recording medium that has been dubbed can be significantly reduced, and the purchase cost of the second recording medium used for dubbing can be reduced. Furthermore, when dubbing the contents of a conversation, a lecture, etc., the present invention can provide an excellent dubbing device such that the conversation, the lecture can be heard in the net time in a short time.

[Brief description of the drawings]

FIG. 1 is a block diagram of essential parts of a dubbing apparatus according to the present invention.

FIG. 2 is a block diagram of a main part of a conventional dubbing device.

[Explanation of symbols]

1 recording tape 2 preamplifier 3 speech speed conversion circuit 5 recording tape (for dubbing) 8 speaker RH ₁ , RH ₂ playback head WH recording head

Claims (1)

[Claims] 1. A first recording medium recorded at a first speed is moved at a second speed higher than the first speed to reproduce a recording signal of the first recording medium, and the reproduced signal is reproduced as a second recording medium. In the dubbing apparatus for recording in the above, a speech speed conversion circuit for converting a reproduction signal reproduced at the second speed into a signal having a signal pitch larger than the signal pitch of the reproduction signal, and a conversion signal converted by the speech speed conversion circuit. Second
A dubbing apparatus comprising: a driving unit that moves the second recording medium at a speed equal to or lower than a second speed so as to be recorded on the recording medium; and a recording unit that records the converted signal on the second recording medium.