JPH07104646B2 - Tape recorder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a tape recorder that uses a RAM together with a magnetic tape for recording voice information.

<Prior Art> For example, in tape recorders for language learning, musical instrument practice, and the like, there are some that use RAM as a recording medium together with magnetic tape. This is because a tape recorder of this type needs to repeat recording and reproduction many times, and the operation is complicated and the speed of the magnetic tape is slow to perform this. In RAM, recording and playback can be repeated with a single touch, and at a high speed.

<Problems to be Solved by the Invention> In a conventional tape recorder of this type, information recorded on a magnetic tape is reproduced and then recorded in RAM and reproduced from RAM, or information reproduced from RAM is recorded on a magnetic tape. It was just to record. On the other hand, in language learning and musical instrument practice, it is effective to learn or practice while comparing the pronunciation and performance sound of the user with the model pronunciation and performance sound. However, in a conventional tape recorder that cannot record directly to RAM, when recording and reproducing repeatedly while listening and comparing, it is necessary to operate the magnetic tape, and the operability is poor and the speed is slow. It had the drawback of being inefficient.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a tape recorder capable of recording audio directly in a RAM.

<Means for Solving the Problems> In order to achieve the above object, the tape recorder of the present invention is a tape audio input means for inputting tape audio information reproduced from a magnetic tape, and a RAM in which the tape audio information is written. And a tape having audio output means for converting the written tape audio information into audio and outputting the audio, and a control section for controlling the respective means so that the tape audio information written in the RAM can be repeatedly reproduced. In the recorder, a microphone voice input means for inputting microphone voice information from a microphone, a voice information selection switch for selecting whether to write the microphone voice information or the tape voice information to the RAM, and write to the RAM. The repeat mode that repeatedly reproduces the recorded tape audio information, or the end of the tape audio reproduction information written in the RAM. The microphone voice information is sequentially written from the address following the address, and the mode selection means for selecting one of the lesson modes for reproducing the tape voice information and the microphone voice information is provided, and the control unit is It is characterized by activating the audio information selection switch based on the selected mode.

<Operation> When the mode selected by the mode selection means is the repeat mode, the audio information selection switch enables the tape audio information to be written in the RAM, and the information written in the RAM can be repeatedly reproduced. Become. On the other hand, in the case of the lesson mode, the microphone audio information is sequentially written from an address subsequent to the last address of the tape audio information previously written, and the tape audio information and the microphone audio information can be reproduced. That is, the microphone information can be directly written into the RAM and can be reproduced.

<Embodiment> FIG. 1 shows the structure of the tape recorder of this embodiment. In the figure, 1 is a magnetic head, 2 is a preamplifier, 3 is a power amplifier, 4 is a speaker, 5 is a microphone, and 6 is a control I.
C, 7 are RAMs, and 8, 9, 10, 11 are switches.

The magnetic head 1 extracts an audio signal from a magnetic tape (not shown). The preamplifier 2 amplifies this audio signal. The power amplifier 3 converts the audio signal into a drive signal for the speaker 4. The microphone 5 is a voice input device used when the user pronounces and records it in the RAM 7. The control IC 6 controls recording of information on the RAM 7, reproduction of information from the RAM 7 and reproduction of information from the magnetic tape according to the states of the switches 9, 10, 11.

In the RAM 7, the information reproduced from the magnetic tape is recorded, and the voice information input from the microphone 5 after the address following the address in which the information from the magnetic tape is recorded is recorded. The switch 8 is closed to the side a when recording the reproduction information of the magnetic tape in the RAM 7 and reproducing the information recorded in the RAM 7, and the voice information input from the microphone 5 is stored in the RAM 7
When recording to, close to side b. The switch 9 is closed to the a side when the tape recorder mode is selected as repeat, and is closed to the b side when the mode is selected as lesson. When the switch 10 is closed, the reproduction of the information on the magnetic tape and the recording in the RAM 7 are stopped in the lesson mode, and the voice information for several seconds until the switch 10 is closed is reproduced from the RAM 7. When the switch 11 is closed, the reproduction from the RAM 7 ends.

The operation procedure of this tape recorder will be described below.

When the repeat mode is selected, the switch 9 closes to the side a. This repeat mode is a mode in which the information reproduced from the magnetic tape can be recorded in the RAM 7 and the information recorded in the RAM 7 can be repeatedly reproduced, which is a function that has been conventionally used.

When the lesson mode is selected, the switch 9 closes to the b side. FIG. 2 shows an operation time chart in this lesson mode. At the beginning of the lesson mode, the switch 8 is closed to the side a, and when the information on the magnetic tape is reproduced (timing t1), this reproduced information is output from the speaker 4 and is also stored in the RAM 7 under the control of the control IC 6. Will be recorded. When the switch 10 is closed, playback of the magnetic tape and recording to RAM7 are stopped, and RAM7
The information recorded for several seconds until the switch 10 is closed is stored in the RAM under the control of the control IC6.
It is reproduced from 7 (timing t2) and output from the speaker 4.

After that, the switch 8 is controlled by the control IC6.
Closes to the b side, and the information input from the microphone 5 is recorded. Here, when the user makes a sound toward the microphone 5, this voice information is recorded in the RAM 7 (timing t
3). This pronunciation information is sequentially recorded from the address following the final address where the reproduction information of the magnetic tape recorded in the RAM 7 is stored. In this embodiment, in order to store the voice signal reproduced from the magnetic tape and the voice signal from the microphone in the RAM7, A / D conversion is performed at a predetermined sampling frequency, and the digitally converted voice information is stored in a predetermined address of the RAM7. A conventional technique is used in which the voice information stored in the RAM7 is written and read, and the original voice signal is restored by D / A conversion. Therefore, an A / D converter and a D / A converter that perform such an operation are used. The A converter and the control unit that controls these,
Although not shown, it is included in the control IC6. Further, as described above, the control IC 6 controls the writing / reading of the RAM 7 and the switch 8 based on the operation of the switch 10 (start) and the switch 11 (reset) in the setting state of the lesson mode / repeat mode by the switch 9. The tape / microphone switching control and drive control of a tape drive unit (not shown) are performed.

The period of voice input from the microphone 5 is fixed in advance in the tape recorder, operated by a switch of the user, or automatically started when voice is input, and automatically when voice input is lost. It is determined by the method of stopping at.

When the voice input from the microphone 5 is completed, the information from the magnetic tape recorded in the RAM 7 and the voice information from the microphone 5 are reproduced (timing t4, t5). The reproduction of the tape information and the microphone information from the RAM7 is continuously performed. The reproduction of the tape information and the microphone information can be repeated. After that, when the switch 11 is closed, the reproduction from the RAM 7 ends and the normal magnetic tape reproduction mode is entered.

<Effect of the Invention> As described above, according to the tape recorder of the present invention,
Microphone voice input means for inputting microphone voice information from a microphone, a voice information selection switch for selecting whether to write this microphone voice information or tape voice information to RAM, and either repeat mode or lesson mode. The control section is provided with a mode selection means for selecting a mode, and the control section is configured to drive the audio information selection switch based on the selected mode.Therefore, the reproduced sound of the magnetic tape recorded in the RAM and the user's sound are recorded. Can be played back alternately with a simple operation, and the efficiency is improved in, for example, language learning and musical instrument practice.

[Brief description of drawings]

FIG. 1 is a diagram showing a circuit configuration of an embodiment of the present invention, and FIG. 2 is a diagram showing an operation time chart of the embodiment of the present invention. 1 …… Magnetic head 2 …… Preamplifier 3 …… Power amplifier 4 …… Speaker 5 …… Microphone 6 …… Control IC 7 …… RAM 8,9,10,11 …… Switch

Claims (1)

[Claims] 1. A tape audio input means for inputting tape audio information reproduced from a magnetic tape, a RAM in which the tape audio information is written, and an audio output for converting the written tape audio information into audio and outputting the audio. Means and above RAM
In a tape recorder equipped with a control unit for controlling each of the above means so that the tape audio information written in can be repeatedly reproduced, a microphone audio input means for inputting microphone audio information from a microphone and the microphone audio information or the above An audio information selection switch for selecting any one of the tape audio information to be written in the RAM, a repeat mode for repeatedly reproducing the tape audio information written in the RAM, or a tape audio reproduction information written in the RAM. The microphone voice information is sequentially written from the address following the last address, and mode control means for selecting one of the lesson modes for reproducing the tape voice information and the microphone voice information is provided, and the control unit is Based on the selected mode, it is possible to drive the voice information selection switch. Tape recorder for the butterflies.