JPS60205744A - Audio recording and reproducing system - Google Patents

Abstract

PURPOSE:To perform surely audio recording and reproducing processings at a high speed by subjecting an audio signal to A/D conversion to store it in a magnetic disc device, and subjecting the signal from the magnetic disc device to D/A conversion to reproduce the audio signal. CONSTITUTION:Sounds are converted to an analog audio signal by a microphone 11 and are converted to a digital signal by an A/D converting circuit. A CPU10 outputs the digital signal to a controller (FDC)14, and the FDC14 stores it in a floppy disc device (FDD)13. In case of reproducing, the FDC14 reads out audio data from the FDD13 by an instruction of the CPU10 and outputs it to the CPU10. The CPU10 outputs it to a D/A converting circuit 16 to convert it to the analog audio signal and outputs this signal to a speaker 15.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an audio recording/playback method using a magnetic disk device.

In recent years, due to the spread of mothersonal computers.

Various types of audio processing are performed using computers. In such audio processing, conventionally, a cassette CHFV coder is used, and audio is recorded and played back from this C2.

However, the audio processing using the cassette tape V-column as described above has a problem in that it takes a relatively long time to reproduce the necessary audio.

The present invention has been made in view of the above points, and an object of the present invention is to record and reproduce audio at high speed and reliably by using a magnetic disk device in audio processing using a computer. The purpose is to provide a recording and playback method.

In the present invention, a magnetic disk device used as an external storage device of a computer is used. -Speech extracted by microphone etc.

The audio data is converted into a digital signal by an A/D converter and supplied to the audio data control means C2. This audio data control means generates audio data from the digital signal, performs file processing on the audio data, and stores the file processing in the magnetic disk device. on the other hand.

When the audio data designated as a file by the audio data control means is read from the magnetic disk device, it is converted into an analog audio signal by a D/A converter and sent to the speaker. This speaker (2) will play the necessary lines.

With such a configuration, audio recording and reproduction processing can be performed reliably at high speed.

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a block diagram showing a configuration according to a fifth embodiment.

In Figure 1, a microprocessor (CPU) J o
controls the operation of the entire device based on a pre-prepared program≦2.

The microphone 11 extracts an audio signal from one voice and outputs it to the A/D conversion circuit 12. This A/D conversion circuit 12 converts an analog signal, which is an audio signal from the microphone 11, into a digital signal and outputs the digital signal to the CPU10.

The CPU 10 temporarily stores the digital signal from the A/D conversion circuit 12, generates audio data from this digital signal, and performs file processing.

The audio data file-processed by CPUJ (1) is
It is output to the FDC 14, which is the controller of the floppy disk device (FDD) Js.

The FDC 14 controls the FDD 13 to store the audio data in a predetermined storage area (2) of the floppy disk.D
The /A conversion circuit 16 converts F'DD under the control of CPU10.
The audio data read from 13 is converted into an analog audio signal and output to the °C speaker 15. speaker 15
reproduces audio according to the audio signal from the D/A conversion circuit 16.

In the above configuration, the operation according to the embodiment will be explained. First, the user speaks and inputs a necessary message through the microphone 11. The generated voice is converted into an analog voice signal C by the microphone 11 and sent to the A/D conversion circuit 12 (:). In the A/D conversion circuit 12, the voice signal is converted into a digital E signal ( This digital signal is converted into two.

The signal is supplied from the A/D conversion circuit 12 to the CPU 10.

The CPU 10 receives the digital signal 15 from the A/D conversion circuit 12.
For example, the digital signal is temporarily stored in a buffer memory, and when the conversion operation of the A/L) i conversion circuit 12 is completed, the digital signal in the buffer memory is processed as audio data and file processing is performed. As a result, the audio data is 1, for example, file F.
It is output to the FDC 14 as one file. F'DC
14 controls the FDDls to set a predetermined period t of the floppy disk 20, for example, as shown in FIG.
1 to store audio data from the CPU 10. This allows the audio data to be converted to normal data (for example, file F
This means that the file F2 is stored on the floppy disk along with the file F2), and is stored in the area corresponding to file F2.

Next, when the audio data stored in the floppy disk 20 is to be reproduced 111 times, from the CPUJO to the file F1.
A read command is given to %FDCI4. In response to this read command, the FDC 14 controls the FDDzJ, and the acPUI□, which reads audio data from the storage area of the floppy disk 20 and outputs it to the CPU 10, controls the FDC 1
The audio data from 4 is temporarily stored in a buffer memory, and the audio data is transferred from this buffer memory to the /A conversion circuit 16.
Output to. The audio data from CPUJO is converted into an analog audio signal and output to the speaker 15 under the control of the D/A conversion circuit 16CPUJ□. This results in
The audio data stored on the floppy disk 20 will be played back from the speaker 15.

This reproduced voice corresponds to the voice of the message uttered by the user as described above.

In this way, the voice uttered by the user.

Recording and playback can be performed using a magnetic disk device. Therefore, recording audio using a computer,
Reproduction processing can be performed at high speed and reliably. Furthermore, since the reading and recording of audio data is automatically performed under the control of %CPU1o, there is an advantage that the user can perform audio recording and playback processing with simple operations.

As described in detail above, according to the present invention, audio recording and reproduction processing can be performed at high speed and reliably using a magnetic disk device. This kind of audio recording and playback method is
For example, when applied to a personal computer equipped with a floppy disk device, the user can obtain useful effects such as being able to read the floppy disk in advance.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an audio recording/playback system according to an embodiment of the present invention. FIG. 2 is a diagram showing an example of the storage contents of a floppy disk. 10...CPU, 11-...Microphone%12.
・・A/D conversion circuit, 13...FDD%14...F
D.C. 15...Speaker, 16...D/A conversion circuit. Applicant's representative Patent attorney Takehiko Suzue Figure 1 0 Figure 2 Procedural amendment 1982 5-vT, + Commissioner of the Japan Patent Office Kazuo Wakasugi ■, Small case indication patent application 1982-627734j 3. Make amendments. Relationship with the Patent Applicant Case: Illusion of Patent Applicant Koken 4, Agent 6, Supplement II-

Claims (1)

[Claims] audio input means for extracting an audio input signal and converting it into a digital signal; audio data control means for generating audio data from the digital signal converted by the audio input means and processing the file; a magnetic disk storage means for storing the processed audio data in a predetermined storage area; and a magnetic disk storage means for reading out the audio data designated as a file by the audio data control means from the storage area of the magnetic disk storage means and converting it into an analog audio signal. 1. An audio recording and reproducing method, characterized in that it is equipped with an audio output means for outputting an audio signal.