JPH07199984A - Audio information reproducing device - Google Patents

Abstract

PURPOSE:To synthesize and output plural pieces of audio information, recorded in an optically readable state, at the same time. CONSTITUTION:A code information read means 3 optionally selects and optically reads recorded codes 2A, 2B... 2N, recorded on recording media 1A, 1B... 1N, one by one. A code information decoding means 4 decodes the recorded codes read by the code information read means 3 in order. A decoded information composing means 7 puts digital speech signals, decoded by the code information decoding means 4, together in order. A D/A converter 5 converts the digital speech signal composed by the decoded information composing means 7 into an analog speech signal. A speech output means 6 outputs the analog speech signal, converted by the D/A converter 5, as a speech output.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information reproducing apparatus in an audio information recording / reproducing system for optically recording and reproducing audio information such as voice.

[0002]

2. Description of the Related Art Conventionally, various media such as magnetic tapes and optical disks have been known as media for recording voice, music and the like. However, even if a large number of copies of these media are made, the unit price will be somewhat expensive, and a large amount of space will be required to store them. Furthermore, when it is necessary to hand over a medium on which voice is recorded to another person in a remote place, it takes time and effort to send it by mail or bring it directly. There was also.

Therefore, it has been considered to record voice information on paper in the form of image information which can be transmitted by facsimile and can be reproduced in large quantities. For example, JP-A-60-24
As disclosed in Japanese Patent No. 4145, there has been proposed a method in which a small amount of voice is converted into an optical code so that voice information is converted into image information and can be sent by facsimile. Furthermore, Japanese Patent Application No. 4-25826 of the present applicant
In No. 2, by placing the part that reads the code optically and restores the original audio information from the recording medium in which the audio information is recorded in the one portable housing. The audio information recording / reproducing system and the audio information recording / reproducing system in which the audio information such as voice and music can be reproduced from the recording medium any number of times and any number of times can be used. Proposing a recording medium.

[0004]

However, after the voice information is converted into optically readable code information and printed on one recording medium, or after transmission when a facsimile is used, it is printed. In the device disclosed in the above publication or application, the code information is read from the printed medium by the optical reading means, the voice information is decoded again, and output. No particular consideration was given to arbitrarily selecting different audio information, synthesizing them, and outputting them simultaneously.

That is, as shown in FIG. 4C, the audio information reproducing apparatus according to the prior art has code information reading means 3 for optically reading the recording code 2 recorded on the recording medium 1 and the code. Code information decoding means 4 for decoding the code information read by the information reading means 3
And a D / A for converting the digital voice information decoded by the code information decoding means 4 into an analog voice signal.
Converter 5 and audio output means 6 for outputting the analog audio signal converted by the D / A converter 5 as an audio output.
, And the recording code on the recording medium can be reproduced only by the code. Therefore, for example, even if the audio information for each musical instrument (each part) is separately printed on the score with an optically readable code, the audio of each musical instrument is reproduced only separately, and the same It is not possible to output passages at the same time with the desired combination of instruments.

The present invention has been made in view of the above points, and audio information such as voice and music recorded so as to be optically readable can be repeatedly and arbitrarily reproduced with only desired voice, and desired. It is an object of the present invention to provide an audio information reproducing device capable of synthesizing arbitrary voices, outputting them simultaneously, and reproducing them efficiently.

[0007]

In order to achieve the above object, an audio information reproducing apparatus according to the present invention is provided with at least one recording medium in which audio information is converted into an optically readable code and printed and recorded. Reading means for selecting an arbitrary plurality of codes recorded on the recording medium and sequentially optically reading the codes, and a reverse means for sequentially converting the plurality of codes read by the reading means into respective audio information. It is characterized in that it comprises: a converting means, a synthesizing means for sequentially synthesizing the audio information inversely transformed by the inverse transforming means, and an output means for outputting the audio information synthesized by the synthesizing means.

In addition, the audio information reproducing apparatus according to the present invention has a plurality of codes recorded on at least one recording medium on which audio information is converted into an optically readable code and printed and recorded. A reading means for optically reading over individual pieces, a plurality of inverse conversion means for inversely converting a plurality of codes read by the reading means into respective audio information, and the plurality of inverse conversion means. It is characterized in that it is provided with a synthesizing means for synthesizing the respective inversely converted audio information and an output means for outputting the audio information synthesized by the synthesizing means.

[0009]

That is, according to the audio information reproducing apparatus of the present invention, at least one recording medium on which audio information is converted into an optically readable code and printed and recorded by the reading means is recorded on the recording medium. An arbitrary plurality of the recorded codes are selected and sequentially optically read, and by the inverse conversion means, the plurality of read codes are sequentially converted back into respective audio information. Then, the synthesizing means sequentially synthesizes the respective audio information inversely transformed by the inverse transforming means, and the output means outputs the synthesized audio information.

Further, according to the audio information reproducing apparatus of the present invention, at least one recording medium on which the audio information is converted into an optically readable code and printed and recorded by the reading means is recorded on the recording medium. The recorded codes are optically read across a plurality of codes, and the plurality of read codes are inversely converted into respective audio information by a plurality of inverse conversion means. And
The synthesizing means synthesizes the plurality of inversely converted audio information, and the output means outputs the synthesized audio information.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. [First Embodiment] First, a first embodiment of the present invention will be described.
FIG. 1 is a diagram showing the schematic configuration thereof, and the same components as those in the conventional art are designated by the same reference numerals. That is, the audio information reproducing apparatus according to the present embodiment has the recording codes 2A, 2B, ..., 2N recorded on the recording media 1A, 1B ,.
Code information reading means 3 for reading one by one arbitrarily and sequentially reading it, code information decoding means 4 for sequentially decoding each of the recording codes read by the code information reading means 3, and the code information. Decoding information synthesizing means 7 for sequentially synthesizing digital speech signals sequentially decoded by the decoding means 4, and D / for converting the digital speech signal synthesized by the decoding information synthesizing means 7 into an analog speech signal. It has an A converter 5 and a voice output means 6 for outputting the analog voice signal converted by the D / A converter 5 as a voice output.

Here, the recording media 1A to 1N may be one recording medium. That is, a plurality of recording codes 2A to 2N may be recorded on one recording medium. For example, the recording medium is a sheet 12 on which a score 10 as shown in FIG. 2A is printed, and a plurality of dot codes 14 (that is, 14A, 14B, 14C) are formed on the sheet 12.
Consider what is printed and recorded.

Then, the code information reading means 3, the code information decoding means 4, the decoding information synthesizing means 5, and the D / A.
When the converter 5 is housed in one portable housing to form a pen-type reproduction device 16 as shown in FIG. 2B and the audio output means 6 is composed of a speaker 18, arbitrary dot codes 14A, 14B , 14C, and trace it on the pen-type playback device 16, and then trace another dot code, and so on. The device 16 detects the traced dot codes 14, synthesizes all of them, converts them into sounds, and outputs them from the audio output means 6 such as the speaker 18. For example, if you trace over an arbitrarily selected dot code 14A (corresponding to a violin) and dot code 14B (corresponding to a piano), they are detected and synthesized and output, so that the violin and the piano are synchronized. You can listen to the sounds you make at the same time.

The dot code 14 is the same as Japanese Patent Application No. 4-258262 and Japanese Patent Application No. 5-260464 by the present applicant.
2A, it is composed of a plurality of blocks 20 in the X-axis direction and the Y-axis direction, and each block 20 includes a marker 20.
A, block address 20B, and data area 20C. The minimum recording unit of the data area 20C is a dot as shown in the figure.

Next, the actual structure of the reproducing apparatus according to the first embodiment of the present invention will be described with reference to the block diagram of FIG. The detection unit 22 has, in principle, the same function as an imaging unit such as a television camera. That is, the light source 22A illuminates the dot code 14 on the sheet 12, which is a subject, and the reflected light is controlled by the imaging unit controller 22D via the imaging system 22B such as a lens and the spatial filter 22C. The image pickup unit 22E detects it as an image, and the preamplifier 22F
The signal is amplified by, and converted into a digital signal by the A / D converter 22G and output.

Here, the image pickup section 22E is composed of, for example, a semiconductor area sensor, and the pixel pitch of the area sensor is set to 1/2 or less of the dot pitch of the dot code on the image pickup surface according to the sampling theorem. Has been done. Further, the spatial filter 22C installed on the imaging surface is also inserted based on this theorem to prevent the moire phenomenon on the imaging surface. In addition, the imaging area of the area sensor is shown in FIG.
(A), in consideration of camera shake when manually scanning the detection unit 22, the width is set to be larger than the vertical width of a predetermined dot code 14 that is defined as being readable at one time. .

The image signal detected by the detector 22 as described above is then input to the scan converter 24.
In the scan conversion unit 24, the input image signal is first stored in the image memory 24A. This image memory 24A
Has an 8-bit gradation.

The marker detection circuit 24B detects the marker 20A by scanning the image information stored in the image memory 24A as shown in FIG. 4B. At the same time, the data array direction detection circuit 24C detects which address value on the image pickup surface each marker 20A detected by the marker detection circuit 24B corresponds to, and the array of the dot code 14 is detected from the address value. The inclination θ of the imaging surface with respect to the direction is calculated. The marker detection circuit 24B
Indicates that the inclination θ cannot be correctly obtained when the dot code 14 is imaged after being rotated by approximately 90 ° as compared with the case shown in the figure, and therefore a scan in the direction orthogonal to that shown in the figure is also performed. The correct one of the results obtained by the two-direction scanning is selected.

On the other hand, the lens aberration distortion memory 24D stores the previously measured aberration information of the lens used in the image forming system 22B of the detector 22 for correcting the lens distortion. . The address control circuit 24E is
Next, when reading the data stored in the image memory 24A, the value of the inclination θ calculated by the data array direction detection circuit 24C and the lens aberration information stored in the lens aberration distortion memory 24D are used. The read address is given to the image memory 24A, and the data is interpolated by the interpolation circuit 24F, and the scan conversion in the data array direction is performed.

The dot code read from the image memory 24A after being subjected to the scan conversion as described above is then binarized by the binarization circuit 26. The threshold value for this binarization is determined by the threshold value judgment circuit 28 using the value of the histogram for each screen or each block in the screen.
That is, the threshold is determined according to the stain on the dot code, the distortion of the paper, the accuracy of the built-in clock, and the like. The threshold value judgment circuit 28 is, for example, Japanese Patent Application No. 4-131 by the present applicant.
It is desirable to use a circuit utilizing a neural network as shown in No. 051.

The data binarized by the binarization circuit 26 is then demodulated by the demodulation circuit 30. The demodulated data is stored in the data memory unit 32A in the data string adjusting unit 32.
Is input to the block address calculation circuit 32B, and individual block addresses are detected. The detected block address is the block address error detection / correction circuit 32.
By C, the error determination code in the block is used to determine whether or not there is an error in the x, y address data and to perform error correction. If there is no error or if there is an error, the address control circuit 32D controls the address of the data memory unit 32A, deinterleaves it, and converts it into a formal data string.

The voice dot code whose data string is adjusted by the data string adjusting unit 32 is then subjected to error correction by the data error correction circuit 34 using the error correction code in the block. Then, the decompression processing unit 36 performs AD
The data compressed by PCM or the like is decoded, and the data interpolation circuit 38 further interpolates audio data that cannot be error-corrected.

Further, the digital audio data interpolated by the data interpolating circuit 38 is the data synthesizing circuit 4
0 of the memory 40A. Here, in the data synthesizing circuit 40, the digital audio signal output from the data interpolating circuit 38 is added to the audio signal in the memory 40A by the adding circuit 40B at any time, and stored again in the memory 40A.

Such an operation is controlled by a read / play control unit 4 controlled by a voice playback start operation by a user (not shown).
2 is provided in the data synthesis circuit 40 and the data interpolation circuit 3
The addition of the audio signals output from 8 is terminated, and the addition result is output. The digital voice information synthesized by the data synthesizing circuit 40 is converted into an analog voice signal by the D / A converter 5, and the converted voice signal is amplified by a conversion amplifier (not shown), and then the speaker 18 or the like. The sound output means 6 outputs the sound.

Here, the dot code 14 is one of the different audio information coded, and the pen-type reproducing apparatus 16 is manually scanned by the user to select among a plurality of dot codes 14. Any data is sequentially read, and each time the pen-type playback device 16 reads the recorded data, the above operation is repeated, and the individual audio data sequentially output from the data interpolating circuit 38 is processed by the data synthesizing circuit 40. Add up sequentially. This operation is repeated until a data synthesis stop signal is received from the read / play control unit 42 by a user operation.

In the audio information reproducing apparatus of this embodiment, since individual recording codes (dot codes) are sequentially read, the image pickup area itself has an area capable of picking up an image of one recording code, no matter how many recording codes are read. I wish I had it.

[Second Embodiment] Next, a second embodiment of the present invention will be described. The schematic configuration of this embodiment is the same as that of the first embodiment shown in FIG. 1, but the operation of each part is slightly different.

That is, all of the recording codes readable by the code information reading means 3 are selected from the recording codes 2A, 2B, ..., 2N recorded on the recording media 1A, 1B, ... Code information reading means 3 for optically reading all of them simultaneously, code information decoding means 4 for simultaneously decoding each of the recording codes read by the code information reading means 3, and code information decoding means 4 for simultaneous decoding. Decoding information synthesizing means 7 for synthesizing the digital audio signal, a D / A converter 5 for converting the digital speech signal synthesized by the decoding information synthesizing means 7 into an analog speech signal, and the D / A
The audio output unit 6 outputs the analog audio signal converted by the converter 5 as an audio output.

Here, the recording media 1A to 1N may be one recording medium. That is, a plurality of recording codes 2A to 2N may be recorded on one recording medium. For example, the recording medium is a roll sheet 44 as shown in FIG. 5A, and a plurality of dot codes 1 are formed on the roll sheet 44.
4 (that is, 14A, 14B, 14C, 14D) may be printed and recorded.

Then, the code information reading means 3, the code information decoding means 4, the decoded information synthesizing means 5, the D / A converter 5, and the voice output means 6 are housed in a single housing (B) in FIG. The table-type reproducing device 46 as shown in FIG. 2 is provided, and the table-type reproducing device 46 is provided with a detecting section 22 capable of simultaneously detecting a plurality of dot codes as shown in FIG. When configured, by sending the roll sheet 44 at a constant speed, the detection unit 22 traces all the dot codes 14A to 14D at the same time, detects the dot codes 14A to 14D, and detects the detected dot code 14A. After composite synthesis of each of ~ 14D, it can be converted into a sound and heard by the speaker 18.

FIG. 6 is a block diagram of the tabletop reproducing apparatus 46 as the audio information reproducing apparatus in the second embodiment of the present invention. In this reproducing apparatus, the detection unit 22 to the demodulation circuit 30 are the same as those in the above-described first embodiment, except that the detection unit 22 is configured to be capable of simultaneously detecting the plurality of dot codes 14A to 14D as described above.

In the reproducing apparatus of this embodiment,
The demodulated signal for each data demodulated by the demodulation circuit 30 for each recorded data is the data string adjustment unit 32.
It is sent to _A , 32 _B , 32 _C and 32 _D. The configuration of each of the data string adjusting units 32 _{A to} 32 _D is the same as that of the data string adjusting unit 32 of FIG. 3 of the first embodiment. That is, each of the demodulated signal is input to the data memory section 32A and the block address calculating circuit 32B in each of the data string adjusting section 32 _A to 32 _D, each block address is detected. For the detected block address, the error detection / correction circuit 32C for each block address determines whether or not there is an error in the x, y address data using the error determination code in the block, and performs error correction. When there is no error or correction, the address control circuit 32
D controls the address of the data memory unit 32A,
Deinterleave is applied, and each is converted into a formal data string. Next, the error correction using the error correction code in each block is performed by the data error correction circuit 3
4 _A , 34 _B , 34 _C , 34 _D. Then, the decompression processing units 36 _A , 36 _B , 36 _C and 36 _{D, respectively.}
The compressed data (by ADPCM or the like) is decoded, and they are further decoded by the data interpolation circuit 3 respectively.
_{8 A, 38 B, 38 C} , 38 interpolation error uncorrectable audio data by _{the D} is performed. Further, the digital audio data interpolated by the data interpolating circuits 38 _{A to} 38 _D are added by the adding circuit 48.

The digital voice information synthesized by the adder circuit 48 is converted into an analog voice signal by the D / A converter 5, and the converted voice signal is amplified by a conversion amplifier (not shown). After that, sound is output by the voice output means 6 such as the speaker 18.

Here, the dot codes 14A to 14D are
Different audio information may be coded and recorded by different microphones, and the detection unit 22 is premised on the scanning of the mechanical medium or the scanning of the reading unit. In this case, each interleave unit of the dot code 14 may be narrowed, and when each audio information is recorded in real time at the time of recording, real-time synthesis reproduction is also possible and each of them can be visually recognized. It becomes possible to understand the temporal relationship of voice.

If the detection unit 22 is premised on the scanning of the mechanical medium or the scanning of the reading unit, a line sensor may be used for the image pickup unit 22D. As described above, the recording medium to which the time information is visually given can be used for a script, a minutes, etc. in which a plurality of voices are recorded, and the pen-type reproducing apparatus of the first embodiment is used. At times, it is possible to repeatedly reproduce only the conventional dot code.

[Third Embodiment] Next, a third embodiment of the present invention will be described. In the third embodiment, a plurality of recording codes are not recorded on one recording medium as in the first and second embodiments, but recording codes 2A to 1N are recorded on a plurality of recording media 1A to 1N, respectively. This is an example of recording 2N.

FIG. 7 is a diagram showing the configuration when the audio information reproducing apparatus of the present invention is applied to a karaoke system. Here, it is assumed that the audio information codes 52A, 52B, 52C and 52D are recorded in high resolution on the high resolution recording media 50A, 50B, 50C and 50D such as high quality paper or positive film.

Then, the reproducing apparatus of the present embodiment selects one of the high resolution recording media 50A, 50B and 50C to generate the corresponding audio information code 52A, 5A.
2B, 'a _1, the high definition image capture unit 3' high definition image capture unit 3 for reading one of the 52C in the optical audio information codes 52A read by _1, 52B, 5
From any of 2C and decoding means 4 ₁ for decoding a digital audio signal, by selecting the high-resolution recording medium 50D, a high-definition image capture unit 3 _'2 for reading a corresponding audio information code 52D optically, the audio information code 5 read by the high-definition image capture unit 3 _'2
Decoding means 4 for decoding a digital audio signal from 2D
₂ , decoding information synthesizing means 7 for synthesizing the digital audio signal output from the decoding means 4 ₁ and the digital audio signal output from the decoding means 4 ₂ , and the digital information synthesized by the decoding information synthesizing means 7. A D / A converter 5 for converting a voice signal into an analog voice signal and externally,
A microphone 8 for inputting voice in real time, a superimposing unit 9 for superimposing a voice from the outside by the microphone 8 on an analog audio signal converted by the D / A converter 5, and the superimposing unit 9 for converting the analog signal. A voice output unit 6 that amplifies the voice signal in which the external voice input is superimposed on the voice signal and outputs the amplified voice signal to the outside is provided.

However, here, it is assumed that the unit of interleaving of audio information is set narrowly so that audio reproduction can be performed in real time. The operation will be described below. The voice recording code 52D is the voice information of only the performance such as music in the karaoke system which is compressed / coded and recorded. For example, this record code is 3
If it is recorded on a 5 mm positive film,
According to the current film recorder, high resolution and high gradation recording can be performed at low cost, and even an inexpensive film scanner can read at about 6000 dpi.

Therefore, if the compressed audio data is two-dimensionally recorded on the entire surface of the positive film which can be optically read by a film scanner or the like, one song can be sufficiently recorded. Also, if it is a positive film, it will be possible to fix it in a frame used for slides etc.
Characters such as a title and an author can be printed on the frame, and further, the content and the starting portion can be printed with an optically readable code. With such frame to the user, it is possible to setting the high-definition image capture unit 3 _'2 such as a film scanner. Thus audio information code 52D read by the high-resolution image capture unit 3 _'2 is the decoding process in units of the interleaved in the decoding section 4 _2, are sequentially sent to the decoding information synthesizing unit 7.

On the other hand, the voice recording codes 52A, 52
B and 52C are singing voices that can be reproduced in synchronization with the performance of the above-mentioned music and voice information such as back chorus are compressed / coded and recorded. High resolution recording medium 50A, 50 on which any one of the sounds is recorded
B, select 50C, read 'after performing Setteingu on _1, high-resolution capture means 3' high resolution capture means 3 the audio recording code selected in synchronism ₁ and optically,
The decoding means 4 ₁ sequentially performs decoding in the same interleave unit, and sequentially outputs to the decoding information synthesizing means 7.

Therefore, it is assumed that the data sequentially transmitted from both the decoding means 4 ₁ and 4 ₂ are synchronized from the beginning of the voice information. The signal synthesized by the decoding information synthesizer 7 is converted into an analog voice output by the D / A converter 5. Here, from the microphone 8, a voice input synchronized with the voice output from the outside is superimposed by the superimposing unit 9, and the result is output by the voice output unit 6 such as a speaker.

Here, the voice input from the microphone 8 is a user's voice or the like input in real time. The voice information code 52D is only a musical performance, and the voice information codes 52A, 52B and 52C are original samples. Any number of singing voices by different singing hands, singing voices by singing hands that the user likes, singing voices by singing hands that the user likes for the purpose of duet, back chorus such as bass part, etc. may be prepared.

When a 35 mm positive film is used as the recording medium, it does not take up space as a medium, is light and easy to handle, is not easily broken, is not deteriorated by being magnetized, and is optically readable. Since it does not wear and is easily reprinted, it is easy to print a large amount, and personal voice by the microphone 8 can be easily recorded as a voice recording code on a positive film. Much cheaper than making a CD.

Also, without being particular about the medium, a wide variety of combinations can be enjoyed as a karaoke performance. In the first to third embodiments described above, the case where the number of codes is three or four has been described as an example, but the present invention is not limited to this, and it is necessary depending on the number of codes. By arranging the processing units, it is possible to handle any number.

[0046]

As described in detail above, according to the present invention,
Audio information that can be recorded optically readable, such as audio and music, can be repeatedly and arbitrarily reproduced with only the desired sound, and the desired arbitrary sounds can be synthesized and output simultaneously, and efficiently reproduced. It is possible to provide an audio information reproducing apparatus capable of

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of a first embodiment.

FIG. 2A is a diagram for explaining an optically readable code recorded on the recording medium in the first embodiment, and FIG. 2B is an audio information reproducing apparatus of the first embodiment. It is a figure which shows the operation state of.

FIG. 3 is a block diagram showing an actual configuration of an audio information reproducing apparatus in the first embodiment.

4A is an explanatory diagram of manual scanning, FIG. 4B is an explanatory diagram of scan conversion, and FIG. 4C is a schematic configuration diagram of a conventional audio information reproducing apparatus.

FIG. 5A is a diagram for explaining an optically readable code recorded on the recording medium in the second embodiment, and FIGS. 5B and 5C are respectively the second embodiment. FIG. 3 is a perspective view showing the external appearance of the audio information reproducing apparatus of FIG. 1 and a diagram showing the positional relationship between the detection unit and the dot code at the time of reading.

FIG. 6 is a block diagram showing an actual configuration of an audio information reproducing apparatus according to a second embodiment.

FIG. 7 is a diagram showing a schematic configuration of a third embodiment.

[Explanation of symbols]

1A-1N ... recording medium, 2A to 2N recording code, 3 ... code information reading means 3 _'1, 3' ₂ ... high-definition image capture unit, 4 ... code information decoding unit, 4 _1, 4 ₂ ... decoding unit, 5 ... D / A converter, 6 ... Audio output means, 7 ... Decoded information synthesizing means, 8 ... Microphone, 9 ... Superimposing section, 10 ...
Music sheet, 12 ... Sheet, 14, 14A to 14D ... Dot code, 16 ... Pen type playback device, 18 ... Speaker, 20 ...
Block, 20A ... Marker, 20B ... Block address, 20C ... Data area, 22 ... Detection section, 22A ... Light source, 22B ... Imaging system, 22C ... Spatial filter, 22D ...
Imaging unit control unit, 22E ... Imaging unit, 22F ... Preamplifier,
22G ... A / D converter, 24 ... Scan conversion section, 24A ... Image memory, 24B ... Marker detection circuit, 24C ... Data array direction detection circuit, 24D ... Lens aberration distortion memory, 2
4E ... Address control circuit, 24F ... Interpolation circuit, 26 ... 2
Thresholding circuit, 28 ... Threshold determination circuit, 30 ... Demodulation circuit, 3
2, 32 _{A to} 32 _D ... Data string adjusting unit, 32 A ... Data memory unit, 32 B ... Block address calculating circuit, 32 C
... error detection and correction circuit of the block address, 32D ... address control circuit, 34, 34 _A to 34C _D ... data error correction circuit, 36, 36 _A ~ 36 _D ... decompression section, 38,
38 _{A to} 38 _D ... Data interpolating circuit, 40 ... Data synthesizing circuit, 40 A ... Memory, 40 B ... Addition circuit, 42 ... Read reproduction control section, 44 ... Roll sheet, 46 ... Desktop reproduction device, 48 ... Addition circuit, 50 A ˜50D ... High resolution recording medium, 52A to 52D ... Audio information code.

Claims (2)

[Claims] 1. From at least one recording medium in which audio information is converted into an optically readable code and printed and recorded, an arbitrary plurality of codes recorded on the recording medium are selected to sequentially perform optical conversion. Reading means, an inverse conversion means for sequentially converting a plurality of codes read by the reading means into respective audio information, and a synthesis for sequentially combining the respective audio information inversely converted by the inverse conversion means. An audio information reproducing apparatus comprising: a means and an output means for outputting the audio information synthesized by the synthesizing means. 2. A reading method for optically reading a code recorded on a plurality of recording media from at least one recording medium in which audio information is converted into an optically readable code and printed and recorded. Means, a plurality of inverse conversion means for inversely converting a plurality of codes read by the reading means into respective audio information, and a plurality of audio information inversely converted by the plurality of inverse conversion means. An audio information reproducing apparatus comprising: a synthesizing unit for synthesizing and an output unit for outputting the audio information synthesized by the synthesizing unit.