JPH0527834U - Digital audio tape recorder - Google Patents

Abstract

(57) [Summary] [Purpose] To automatically delete the start ID that was erroneously recorded during recording with the digital audio pre-coder after recording. [Structure] A start ID reservation switch is provided, and when this switch is input during recording, the position is stored by a micro computer. [Effect] It is possible to select the automatic deletion after the end of recording for the start ID erroneously recorded during recording, at the discretion of the user.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a digital audio pre-coder, and more particularly to recording and erasing a signal (hereinafter referred to as "start ID") indicating the start of a song.

[0002]

[Prior Art]

 Regarding the recording of the start ID in the digital audio pre-coder, as described in JP-A-61-211857, the level of the audio signal input at the time of recording is judged, and input for a fixed time. There is a method of recording the start ID when the level of the audio signal becomes lower than the reference level after the level of the audio signal is lower than the reference level.

Accordingly, if there is a sufficient music interval in the signal to be recorded at the time of recording, it is possible to record the start ID almost at the beginning of the music.

[0004]

[Problems to be solved by the device]

 However, this device has a drawback in that the start ID is erroneously recorded because there is a low level portion in the middle of the song although it is not between songs depending on the signal to be recorded. In such a case, there is a trouble that the start ID has to be erased and corrected after the recording.

[0005]

[Means for Solving the Problems]

 The purpose of the present invention is to terminate the recording when the user recognizes such a start ID which is erroneously recorded during recording, judges it as unnecessary and stores it by the microcomputer. This is to automatically delete this start ID later.

[0006]

[Action]

 It operates by monitoring the switch input that determines the start ID is invalid during recording.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, when recording with a digital audio precoder, a start ID is added to the beginning of each song by a method such as detecting a change in input signal level. Record. Here, there is a low level part in the middle of the nth song, and the start ID is erroneously recorded (point A). At this time, the user can recognize that the start ID was erroneously recorded on the display tube or the like, so the user presses the start ID deletion reservation switch at the point B immediately after the point A. At this time, the position of the point B is stored by the microcomputer. After this, when the recording is finished at point C, it automatically rewinds and rewinds to the stored point B. After rewinding to point B, continue rewinding operation until the start ID is detected. As a result, after the start ID at the point A is detected, this start ID is erased. In this way, the start ID at the point A which is erroneously recorded can be erased.

The series of operations will be described with reference to the block diagram of FIG. 2. During recording, a signal from the input jack is converted into a digital signal by an A / D converter and converted into a recording signal by a signal processing circuit. Modulate. At the same time, the level of the input signal is communicated to the microcomputer. The micro computer monitors changes in this level, and records the start ID when a signal greater than this threshold level is input after a level below the predetermined threshold level continues for a predetermined time. Communicate to the signal processing circuit. At the same time, the microcomputer also displays on the display tube that the start ID is being recorded. The contents of the recorded signal are converted from the signal processing circuit into an analog signal by the D / A converter and output from the output jack.

If the user recognizes that the start ID is erroneously recorded by the signal output from the output jack and the start ID recording display on the display tube, the start ID Press the erase reservation switch and input to the microcomputer. The microcomputer stores in the internal memory the point where this switch was pressed.

After that, when the recording stop operation is performed by the user's key operation, the microcomputer puts the mechanism in the rewinding state via the mechanism drive circuit. In the rewinding state, the signal recorded on the tape is input from the head to the signal processing circuit via the reproducing amplifier, and the signal processing circuit communicates the subcode information to the microcomputer. Here, the microcomputer compares the position input to the start ID erase reservation switch stored in the internal memory with the position on the tape judged from the sub code, and the switch is input. It is determined whether or not rewinding has been performed to the position. When the rewinding is performed up to the point where the switch is pressed, the rewinding operation is continued until the start ID is detected. When the start ID is detected, the microcomputer puts the mechanism into a reproducing state and communicates with the signal processing circuit to erase the start ID, and the signal processing circuit is recorded on the tape. Among the signals being recorded, the operation of recording only the sub-code portion is performed and the start ID is erased.

[0012]

[Effect of the device]

 According to the present invention, the user can judge the start ID which was erroneously recorded during the recording, and automatically delete the start ID after the recording is completed.

[Brief description of drawings]

FIG. 1 is an explanatory view showing the operation of an embodiment of the present invention,

FIG. 2 is a block diagram showing the configuration of an embodiment of the present invention.

Claims (1)

[Scope of utility model registration request] 1. A digital audio pre-recorder for recording a sub-code signal together with an audio signal on a magnetic tape.
The recorder has a function of recording a start ID indicating the beginning of a song during recording, and is provided with a switch input and a storage means of switch input for invalidating the recorded start ID during recording. After the recording is completed, the starter ID at the position where the switch input is input is erased, and a digital audio precoder.