JPH1040501A - Method for recording voice information - Google Patents

Abstract

PROBLEM TO BE SOLVED: To record voice information and visual information on printing paper without restricting each other by recording voice information and printing visual information on the same area of printing paper. SOLUTION: A transparent film 1 on the surface of printing paper 3, which is carried in direction A, is cut by a fixed cutter 6 through vertical motion in B to B' direction of a roller 5. And, unevenness corresponding to the vertical motion of the roller 5 is formed on the printing paper 3. The printing paper 3 has elasticity and flexibility, which produces high followingness to the vertical motion of the roller 5 to form unevenness identical with voice waveform on the transparent film 1. Further, by copying the resulting printing paper with a copying machine, only the visual information can be copied without copying the voice information, thereby, the voice information can be recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio information recording method for printing visual information such as characters and images on printing paper and recording audio information on the printing paper.

[0002]

2. Description of the Related Art Conventionally, as a medium for recording audio information,
Magnetic tapes, compact disks, records, sonosheets and the like are used. On the other hand, with the development of digital encoding technology in recent years, audio information and visual information such as characters and images have been digitized and recorded on the same medium.

[0003] However, in order for humans to use the digitized voice information and visual information, the digitized information must be converted into a form that can be perceived by human senses. For this purpose, it is necessary to use different output devices such as a paper or a display for visual information and a speaker or an earphone for audio information. When recording audio information and visual information on the same medium, when a compact disc, sonosheet, record, etc. is used as the recording medium, these recording media are generally sensitive to scratches, dust, and dirt, so the recording medium is paper. Care is required in handling compared to the case, and the size of the print area of visual information is often greatly restricted.

In order to solve such a problem, Japanese Patent Application Laid-Open Nos. 59-23399, 60-134384, 61-260756 and 3-1 have been disclosed.
No. 1482 discloses a technique of recording audio information together with visual information on paper to add new value to an information transmission medium called paper. That is, JP
No. 23399 discloses an audio printing apparatus which converts audio information into a digital signal, compresses the band, encodes the converted signal, converts it into an optically readable two-dimensional pattern, and prints it on a printing paper. I have. Also, Japanese Unexamined Patent Publication No.
Japanese Patent No. 34384 discloses an audio recording system in which audio information is encoded and printed on printing paper in an optically readable format. Japanese Patent Application Laid-Open No. 61-260756 discloses an audio information recording method for converting audio information into digital data, compressing the data, and recording the data on a printing paper in dot units. Also, JP-A-3-11482
In Japanese Patent Application Publication No. H10-163, voice information is converted into digital data, which is encoded by light and shade selectively formed in each mesh of the mesh pattern to generate image-encoded data, which is printed as an image of the mesh pattern on printing paper. An audio information recording method is disclosed.

[0005]

However, since each of the above methods is a method of visually recording audio information and visual information in different areas on a print sheet, the following problems arise. is there. In other words, audio information is divided into human audio information and music information, and copyright is generated on the medium on which the information is recorded, but in the case of visual recording by printing, the audio information is easily copied by a copying machine. Because it can be copied, it is easy to cause copyright problems.

Further, it is necessary to secure a dedicated area for printing audio information as a visible image on a printing paper, and depending on the amount and resolution of the audio information, the area competes with the printing area of the visual information. It is difficult to combine different types of information such as audio information and visual information in a limited space. Furthermore, each of the above methods records audio information as digital data, and cannot record analog data as it is. The output of human sensation and voice handles recognition of analog data.
It is desirable to be able to handle analog data that does not involve A conversion and AD conversion.

The present invention has been made in view of the above circumstances, and has as its object to provide a voice information recording method capable of recording voice information and visual information on printing paper without restricting each other.

[0008]

A voice information recording method according to the present invention, which achieves the above object, prints visual information on a predetermined printing paper and records the voice information on the printing paper. The method is characterized in that recording of audio information and printing of visual information are performed in the same area on the printing paper.

Here, when recording the audio information on the printing paper, it is preferable that irregularities corresponding to the signal waveform of the audio information are formed on the printing paper.

[0010]

Embodiments of the present invention will be described below. FIG. 1 is a flowchart of a voice information recording method according to the first embodiment of the present invention. First, audio information is input as analog data by converting a compression wave of air into a waveform of a voltage change by a microphone or the like (step S11). PARC input analog data
The data is converted into 48 kHz, 16 bit digital data using an OR conversion method or the like (step S12). next,
Based on the digital data, irregularities corresponding to the signal waveform of the audio information are formed on a predetermined printing paper (step S1).
3). This unevenness forming step is performed by using a voice information recording means described later.

Here, after visual information such as characters and images are printed on the printing paper in advance, step S11 is performed.
Subsequent processes may be started, and the audio information may be superimposed and recorded on the area where the visual information is printed in the process of step S13. Alternatively, after the audio information is recorded on a predetermined print sheet, characters, images, etc. The visual information may be printed so as to be superimposed on the area where the audio information is recorded.

The analog audio data is transmitted at 48 kHz.
By converting the data into z-bit and 16-bit digital data, bidirectional conversion can be performed without causing a difference in audible sound quality due to a difference in analog / digital format. The audio information recorded on the printing paper is converted again into a waveform of a voltage change by audio information reproducing means described later (step S14), and is further converted into analog data by a DA converter (step S15). The output is output by the output device (step S16).

Next, a second embodiment of the present invention will be described. In the first embodiment, after the audio information is converted from analog data to digital data,
Although recorded on printing paper, in the second embodiment,
The voice information is recorded on the printing paper as analog data. FIG. 2 is a flowchart of the audio information recording method according to the second embodiment of the present invention.

First, as in step S11 shown in FIG.
Voice information is input as analog data using a microphone or the like (step S21). Next, irregularities corresponding to the waveform of the input analog data are formed on predetermined printing paper (step S22). This unevenness forming step is performed by using a voice information recording unit described later, similarly to step S13 shown in FIG.

The audio information recorded on the printing paper is converted into a voltage change waveform by audio information reproducing means described later (step S23), and then output by an audio output device such as a speaker (step S24). Note that, as in the first embodiment, any of the steps before and after the audio information recording step and the visual information recording step may be performed first.

As described above, according to the present invention, the audio information is temporarily converted from analog data into a digital data format and then recorded on the printing paper 3, and the digital data is converted into a digital signal and output during reproduction ( There are two methods, a first embodiment) and a method of recording and reproducing audio information as analog data (second embodiment), which are almost the same in achieving the object of the present invention. The difference between the two methods is that the former method has the advantage that the amount of unevenness is small and that high precision is not required for forming the unevenness, but has the disadvantage that the AD conversion / DA conversion operation is required. . On the other hand, in the latter method, the above advantages and disadvantages are in an inverse relationship.

Next, a description will be given of the audio information recording means for forming irregularities on the printing paper according to the signal waveform of the audio information. FIG. 3 is a schematic diagram showing a state in which audio information and visual information are recorded on a print sheet according to the second embodiment of the present invention. FIG. 3 shows a printing paper 3, a color material 2 that expresses visual information printed on the surface of the printing paper 3 as color contrast, and a transparent film 1 that covers the printing paper 3 and the coloring material 2. In addition, irregularities 1 a corresponding to the signal waveform of the audio information are formed on the transparent film 1.

As a method of recording information by forming irregularities on printing paper, a method of developing and transferring a foaming material onto the paper and causing the foaming material to foam by heat at the time of fixing to generate irregularities, thereby producing a Braille image. However, it is difficult to finely control the uneven shape formed on the surface of the foam material, and there is a problem with the transparency of the foam material, which is not suitable as a method for recording visual information and audio information in the same area. Thus, in the present embodiment, a method is employed in which a transparent film that promotes the glossiness of printed characters and images is attached to printing paper. In addition,
Instead of attaching the transparent film to the printing paper, a resin may be applied on the printing paper to form the transparent film on the printing paper.

The transparent film 1 may be made of a thermosetting resin having such a rigidity that irregularities are not deformed by a contact needle for reproducing a sound waveform in a sound information reproducing means described later;
An ultraviolet curable resin or the like is used. The film thickness of the transparent film 1 may be a thickness that allows the recorded audio waveform to be faithfully reproduced and that allows characters and images on the printing paper 3 to be identified through the transparent film 1.

Next, an audio information recording means for forming irregularities on the transparent film 1 according to the signal waveform of the audio information will be described. FIG. 4 is a schematic diagram illustrating an example of the audio information recording unit according to the second embodiment of the present invention. The audio information recording means includes a roller 5, a cutter 6, and a roller vertical movement mechanism (not shown). FIG. 4 shows a color material 2 printed on the surface of the printing paper 3 for expressing visual information as color contrast, and a printing paper conveyed in the direction of arrow A on which the transparent film 1 is formed. 3, a roller 5 for placing the printing paper 3 and moving the printing paper 3 up and down in the directions of arrows B and B ′, and a cutter 6 fixed at a position facing the roller 5 are shown.

The printing paper 3 conveyed in the direction of the arrow A is moved up and down in the directions of the arrows B and B 'of the roller 5 so that the transparent film 1 on the surface is cut by the cutter 6 which is fixed and arranged. Irregularities corresponding to the movement are formed on the printing paper 3. Since the printing paper 3 has a high follow-up property to the vertical movement of the roller 5 due to the elasticity and flexibility of the paper, irregularities faithful to the sound waveform can be formed on the transparent film 1. Also, by copying the obtained printing paper 3 with a copying machine, only the visual information can be copied without copying the audio information, so that the audio information can be recorded without causing a copyright problem.

In this embodiment, the method of forming the irregularities by cutting the transparent film 1 with the roller 5 and the cutter 6 has been described. However, the method of forming the irregularities is not limited to this method. Any method such as heating, chemical reaction, and embossing may be used. next,
A description will be given of audio information reproducing means for reproducing an audio waveform from irregularities formed on printing paper.

FIG. 5 is a schematic diagram showing an example of the audio information reproducing means according to the second embodiment of the present invention. FIG. 5 includes a contact needle 11, an arm 12, a signal processing circuit 13, an amplifier 14, a speaker 15, and the like for reproducing an audio waveform from the unevenness 1a formed on the transparent film 1 on the printing paper 3. Audio information reproducing means is shown.

The contact needle 11 traces on the transparent film 1 on the printing paper 3 by a moving motor (not shown), and vibrates according to the shape of the unevenness 1 a on the transparent film 1. The vibration of the contact needle 11 is transmitted to the signal processing circuit 13 via the arm 12.
Conveyed to. The signal processing circuit 13 converts the vibration of the contact needle 11 into an electric signal. The unevenness information converted into an electric signal is amplified by the amplifier 14 and output from the speaker 15.

By controlling the moving motor to adjust the moving speed of the contact needle 11 to an appropriate level, the input waveform and the output waveform can be matched, so that the input waveform is recorded on the transparent film 1 on the printing paper 3. When the voice information is human utterance information, the utterer can be specified individually. Further, by changing the moving speed of the moving motor and the position of the contact needle 11, only necessary information can be arbitrarily extracted as analog data.

Next, the amount of information that can be recorded according to the present embodiment will be described. FIG. 6 is a diagram showing a result of comparing the information recording amount according to the second embodiment of the present invention with a conventional example. As shown in FIG. 6, a music CD has a large recording amount of audio information, but there is a great restriction on a recording amount of visual information, and the relative relationship between the two cannot be changed. Further, in the conventional audio information recording method, the recording amount of audio information decreases when the recording amount of visual information increases, and the recording amount of visual information decreases when the recording amount of audio information increases. In contrast,
In the present embodiment, since the density of the image for recording the visual information and the density of the surface irregularities for recording the audio information can be arbitrarily changed, the recording amounts of the audio information and the visual information can be arbitrarily adjusted. .

Next, the accessibility of audio information recorded according to this embodiment will be described. FIG. 7 is a diagram showing the accessibility of audio information recorded according to the second embodiment of the present invention in comparison with the prior art. The audio information recorded according to the present embodiment can be reproduced at an arbitrary speed at an arbitrary position at an arbitrary position on a printing paper by combining the audio information with visual information. Is much better.

In the audio information reproducing means of the present embodiment, the unevenness is detected by the contact needle 11, but the unevenness may be detected by a non-contact type unevenness detecting means such as a laser Doppler. .

[0029]

As described above, according to the audio information recording method of the present invention, the recording of the audio information and the printing of the visual information are performed in the same area of the printing paper. Recording can be performed on the entire area of the printing paper without interfering with each other.

When recording the audio information on the printing paper, if irregularities corresponding to the signal waveform of the audio information are formed on the printing paper, the audio information can be simply copied by a copying machine. Therefore, it is possible to realize a voice information recording method that does not cause a copyright problem.

[Brief description of the drawings]

FIG. 1 is a flowchart of a voice information recording method according to a first embodiment of the present invention.

FIG. 2 is a flowchart of an audio information recording method according to a second embodiment of the present invention.

FIG. 3 is a schematic diagram showing a state in which audio information and visual information are recorded on a print sheet according to a second embodiment of the present invention.

FIG. 4 is a schematic diagram illustrating an example of a voice information recording unit according to a second embodiment of the present invention.

FIG. 5 is a schematic diagram illustrating an example of an audio information reproducing unit according to a second embodiment of the present invention.

FIG. 6 is a diagram showing a result of comparing an information recording amount according to a second embodiment of the present invention with a conventional example.

FIG. 7 is a diagram showing the accessibility of audio information recorded according to the second embodiment of the present invention, as compared with the prior art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transparent film 1a Irregularity 2 Color material 3 Printing paper 5 Roller 6 Cutter 11 Contact needle 12 Arm 13 Signal processing circuit 14 Amplifier 15 Speaker

Claims (2)

[Claims] 1. An audio information recording method for printing visual information on a predetermined printing paper and recording audio information on the printing paper, comprising: recording the audio information in the same area on the printing paper; A voice information recording method comprising performing printing. 2. The audio information recording method according to claim 1, wherein when recording the audio information on the printing paper, irregularities corresponding to a signal waveform of the audio information are formed on the printing paper.