JP2008070820A - Apparatus and method for reproducing collected sound - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for reproducing collected sound, which grasps eigentone extracted from an arbitrary object as a matter with entertainment value for enjoyment. <P>SOLUTION: The apparatus comprises: a collected sound reproducer 2 main body keeping a switch 4 for detecting a contact with an arbitrary object; a hitting means 5 for hitting the surface of the object, a microphone 6 for collecting the hitting sound generated on hitting the surface of the object; a sound processing circuit; and a memory installed in a housing 100, thereby storing the sound information collected by the microphone 6 in the memory and reproducing the information stored in the memory many times by a predetermined cycle. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sound collecting / reproducing apparatus and a sound collecting / reproducing method. The present invention is mainly used for play purposes that can be enjoyed easily, that is, for toys for entertainment purposes.

In everyday life, we often judge the inside of an object that cannot be seen directly by listening to the sound of the object when it is struck. For example, as a familiar example, when it is desired to know how the watermelon is clogged, a method of hitting the watermelon and listening to the sound has been generally used. In the medical field, diagnosis of diseases inside the human body using a stethoscope is performed.
Further, in order to determine whether or not there is a defect inside the structure industrially, a sound hit inspection using sound generated when the surface of the structure is hit with a hammer is performed. When we focus on the sound of hitting an object like this, the sound contains various information such as the density, material, and hardness of the object, so we extract the characteristics of the object as a sound by hitting the object. It is possible.

As described above, we have been working to check the state of the object by hitting the object and listening to the sound. In recent years, we have proposed using machines for these operations. For example, Patent Document 1 provides an apparatus that can examine the maturity of fruits and vegetables in a non-destructive state by applying a collision portion to the surface of the fruits and vegetables and detecting the impulse waveform thereof. Further, Document 2 provides an auscultation device in which an ordinary magnetic stethoscope has a recording / reproducing function, and an auscultation record can be heard as necessary. Further, in Patent Documents 3 and 4, in a space exploration device for examining the state of a building or the like, the impact is applied to the exterior of the building, which is the object, and the impact sound is detected and compared. An apparatus capable of outputting is provided.
Japanese Patent No. 3143390 Utility Model Registration No. 3116151 Japanese Patent Publication No. 06-79017 JP 56-652 A

As described above, the method for estimating the inside of an object by sound is widely used from the lives of ordinary people to the medical and engineering fields. However, these are merely used for the purpose of inspection to “judge / evaluate” the state inside the object.
However, the technology that extracts the features of the object as sound can also be used in the entertainment field for the purpose of playing with toys.

  In view of the above-described points, the present invention provides a sound collecting / reproducing apparatus and a sound collecting / reproducing method that are configured so that a unique sound extracted from an arbitrary object can be regarded as having an entertainment property intended for play. Is to provide.

  In order to solve the above problems and achieve the object of the present invention, the present invention provides a switch for detecting contact with an arbitrary object, a tapping means for tapping the surface of the object, and a surface of the object. A sound collector that has a microphone for collecting the sound generated when the sound is played, a sound processing circuit, and a memory are provided in the housing, and information on the sound collected by the microphone is stored in the memory. The information stored in the memory is reproduced a plurality of times at a predetermined cycle.

  In the present invention, the sound collected by the microphone is reproduced a plurality of times, so that one hitting sound can be heard repeatedly.

  Further, the present invention is characterized in that, in the sound collecting / reproducing apparatus, sound information stored in the memory is repeatedly reproduced while the switch is in contact with an arbitrary object.

  In the present invention, sound information stored in the memory is repeatedly reproduced only while the switch is in contact with an arbitrary object.

  Further, the present invention is characterized in that the memory is detachable in the sound collecting and reproducing apparatus.

  In the present invention, since the memory is detachable, the recorded hitting sound can be detached from the device together with the memory, so that the possibility of use is expanded. For example, it is possible to analyze the removed memory with a computer separately prepared.

  Then, the present invention is characterized in that in the sound collecting / reproducing apparatus, information on the collected sound is wirelessly transmitted.

  In the present invention, information on collected sound can be obtained immediately by wirelessly transmitting information on the collected sound even at other locations, for example, remote locations.

  Further, the present invention provides a sound collecting / reproducing method comprising a switch for detecting contact with an arbitrary object, a tapping means for tapping the surface of the object, and a sound generated when the surface of the object is tapped. A step of providing a sound collecting / reproducing main body in which a microphone for collecting sound, a sound processing circuit, and a memory are provided in a housing, and turning on the switch by an object to bring the microphone, the sound processing circuit, and the memory into an operating state And storing the information of the sound collected by the microphone in the memory, and reproducing the information stored in the memory a plurality of times at a predetermined cycle during a period when the switch is on.

  In the present invention, since one hitting sound is reproduced a plurality of times at a predetermined period while the switch is on, the same hitting sound can be heard repeatedly.

  ADVANTAGE OF THE INVENTION According to this invention, the apparatus and sound collection reproduction | regeneration method which can enjoy the specific sound which the object has by the structure which can listen to the sound specific to an object repeatedly can be provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an embodiment of a sound collecting and reproducing apparatus according to the present invention. A sound collecting / reproducing apparatus 1 according to the present embodiment includes a sound collecting / reproducing main body 2 for collecting and reproducing sound, and an earphone unit 7 for listening to the collected sound. The sound collecting / reproducing body 2 is configured as a bell-shaped pad portion (hereinafter referred to as a pad portion), for example. A switch 4 for detecting contact with an object, which will be described later, a hammer 5 for hitting the surface of the object, a microphone 6 for recording, a sound processing circuit 9 and a memory 20 are provided in the housing 100. 4, the hammer 5 and the microphone 6 are arranged so as to face the front end surface 3 of the pad portion 2.

In FIG. 2, the schematic block diagram of the pad part 2 is shown. In addition to the switch 4, the hammer 5 and the microphone 6 serving as the contact portion a with the object, the pad unit 2 includes the voice processing circuit 9, the control circuit 8, the memory 20 and the power source unit c serving as the control device b. A battery 10 is provided. That is, in this example, the system such as the audio processing circuit 9, the control circuit 8, the memory 20, and the battery 10 is built in the pad unit 2. In FIG. 2, when the switch 4 is turned on, a drive control signal for driving the hammer 5 is supplied from the control circuit 8 to the hammer.
On the other hand, the hammering sound picked up by the microphone 6 is supplied to the sound processing circuit 9. The sound processing circuit 9 is supplied with a sampling condition control signal from the control circuit 8 to sample the hit sound. This sampling sound is stored in the memory 20. Further, the sound processing circuit 9 repeats and outputs the hitting sound based on the sampling hitting sound from the memory 20 and the control signal from the control circuit 8 to which a predetermined reproduction period is input in advance.

  The control device b including the control circuit 8, the sound processing circuit 9 and the memory 20 in FIG. 2 has the circuit configuration shown in FIG. This circuit configuration will be described in detail together with the description of the operation of the sound collecting / reproducing apparatus described later.

  In this example, since a shape that can be carried is more preferable, a built-in system sound collecting and reproducing apparatus is used. The memory 20 is preferably removable. In the present example, the wiring 32 extending from the pad portion 2 is connected to the earphone portion 7.

The sound collecting / reproducing apparatus 1 according to the present embodiment has a specification in which the sound detected by the pad unit 2 is repeatedly reproduced from the earphone unit 7 every certain time and heard.
The operation of the sound collecting / reproducing apparatus 1 will be described in detail with reference to FIGS. FIG. 3 is a schematic view when the pad unit 2 comes into contact with the object 24, and the control device b and the power source unit c in the pad unit 2 are not shown. FIG. 4 shows a detailed circuit diagram of the control device b of the sound collecting / reproducing apparatus 1. The circuit configuration of FIG. 4 will be described together with the operation.

  First, the front end surface 3 of the pad portion 2 provided with the switch 4, the hammer 5, and the microphone 6 is applied to an arbitrary object 24 (see FIG. 3). Then, as shown in FIG. 4, the switch 4 is turned on to detect the contact between the pad unit 2 and the object 24, and the detection signal is sent to the control unit 11. Then, the detection signal is adjusted by the variable resistor 12 via the control unit 11, and the solenoid 25 including the hammer 5 is operated. The solenoid 25 moves the iron core when electricity flows through a coil (not shown). Therefore, the iron core that becomes the hammer 5 strikes the surface of the object 24 once. When the hammer 5 hits the surface of the object 24 once, a unique sound is generated from the object 24. The generated sound is captured by the microphone 6 on the front end surface 3 of the pad portion 2. Subsequently, the captured sound is amplified by the amplifier 13 and converted into a digital signal through the A / D conversion 14. Digital signal processing is performed by a DSP (Digital Signal Processor) 15.

  On the other hand, the DSP 15 also receives a command from the control unit 11. First, the length of the hitting sound to be sampled as information from the hitting sound captured by the microphone 6, the playback pattern indicating how often the sampled hitting sound is played back, and the initial setting 23 such as the volume are input. , Input to the control unit 11. Based on the initial setting 23, the initial setting 23 is sent from the control unit 11 to the DSP 15 in order to process the hitting sound captured by the microphone 6 by the DSP 15. Subsequently, the DSP 15 digitally processes the information sampled based on the initial setting 23. Information is transmitted to the common data transmission path 16 from the control unit 11 and the DSP 15, and a series of processing is performed by a CPU (Central Processing Unit) 17, a ROM (Read Only Memory) 18, a RAM (Random Access Memory) 19, and the like. Processing is done.

  Information processed using such a control device b is stored in the memory 20 and output through the amplifier 21 connected from the DSP 15. In this case, the output is made from the earphone unit 7. Further, since the reproduction pattern is input by the initial setting 23, the sound information stored in the memory 20 is repeatedly reproduced (loop reproduction) and repeatedly heard at a predetermined cycle from the earphone unit 7. This repeat reproduction is heard continuously while the switch 4 is in contact with the object 24, that is, during the period when the pad part 2 is applied to the object 24, and is reproduced when the pad part 2 is separated from the object 24. Ends. In this example, the hitting sound to be reproduced is when the pad unit 2 is touching the object 24, and when the pad unit 2 is separated from the object 24, the sound is not reproduced. Then, when the pad part 2 is applied to the next another object, the sound specific to the other object is reproduced repeatedly while the pad part 2 is in contact with the other object.

  As an example, the two sound waves A and A ′ shown in FIG. 5 will be described. The sound wave A and the sound wave A ′ in FIG. 5 indicate the measurement values of sound waves when different objects 24 are struck once by the hammer 5. First, as an initial setting, a time for sampling a sound from a hitting sound is set to 0.2 seconds, and a reproduction pattern is set to every second. Then, the waveform for 0.2 seconds is sampled from each sound wave by the sampling signal shown in FIG. 5B. When a sound of 0.2 seconds is extracted from the sound wave A and the sound wave A 'and reproduced every second, the sampling waveforms are as shown by C and C' in FIG. That is, during the period when the switch 4 is touching the object 24 (FIG. 5D), sounds as indicated by C and C ′ in FIG. 5 are heard from the earphone unit 7. In this way, it is possible to obtain the hit sound of an object with high reproducibility simply by touching the object.

  In addition, by setting the initial setting as in the above example, that is, setting to repeat playback at an interval close to the human pulse, the output sound heard from the earphone unit 7 is a simple object. Despite being, it can feel like a human heartbeat. That is, the sound collecting and reproducing apparatus 1 according to the present embodiment has an entertainment property that provides a mysterious experience that makes it feel as if a simple object is alive. Furthermore, if the shape is closer to the shape of a stethoscope, the playability of entertainment such as the ability to hear the heartbeat of an object is improved. In addition, a feature of a real stethoscope is that a sound is reproduced when the pad portion 2 is in contact with the object 24 and no sound is generated when the pad portion 2 is not in contact, so that the sound can be heard when applied. It is made use of and is easy to handle.

  The sound of the hammer 5 hitting the object 24 is unique to each object, so that a characteristic sound can be heard for each object. Furthermore, if a vibration motor is provided inside the pad unit 2 so that the pad unit 2 vibrates as sound is reproduced from the earphone unit 7, the experience person may feel the heartbeat of the object. it can.

  In addition to listening to the output sound with the ear, the output sound and information can be combined with the game structure. For example, a CG character based on output sound and information is generated and used as a character in the game. The sound information varies depending on the object to be hit. For example, when the memory 20 is detachably arranged with respect to the pad portion 2, the information on the hitting sound stored in the removable memory is analyzed by software on the computer, and the analyzed data and the computer are stored on the computer. By comparing and collating with the existing database, it is possible to generate a character that matches the hit sound. Even in conventional video games, data is read from CDs and barcodes, and the data is analyzed to create an original character. However, those conventional technologies can be analyzed. There were restrictions such as CDs and barcodes. However, if the sound collecting / reproducing apparatus of this example is used, any object can be used as long as it can be struck with a hammer to produce a certain level of sound, and there are infinite possibilities for the object to be analyzed. Even entertainment will spread dramatically.

  Further, as a first modification, as shown in FIG. 6, in the circuit configuration of FIG. 4 described above, a configuration in which a radio transmission circuit 26 and an antenna 27 are connected to the DSP 15 may be adopted. According to the configuration of FIG. 6, the data processed by the DPS 15 can be transmitted via the wireless transmission circuit 26 and the antenna 27, received at another location, for example, a remote location, and repeatedly reproduced. Just after hitting the object 24 with the hammer 5, the repeat reproduction sound can be heard in another place.

As a second modification, as shown in FIG. 7, a configuration in which new data stored in the memory 20 and the existing data 28 can be compared can be employed. A plurality of types of existing data 28 are prepared in advance. Then, the type 30 of the object is determined 31 by analyzing the sound of the new data obtained from the object captured in the memory 20 and the existing data 28 and performing pattern comparison 29. As described above, the comparison between the new data and the existing data 28 can be used for a game for the purpose of hitting sound. Moreover, the possibility of the entertainment expands by making the memory 20 removable.
It is also possible to store a large amount of collected sounds and to retrieve and listen to information as necessary. For example, it can be used as an encyclopedia of unique sounds of objects.

  Further, as a third modification, the hitting sound stored in the removable memory can be used as the tone color of the musical instrument. A removable memory in which the hitting sound is stored is inserted into, for example, a maracas toy, and the hitting sound is taken into the maracas toy. Although not shown, the maracas type has a configuration in which an acceleration sensor and a speaker are mounted, and when it is shaken, the sampled sound is reproduced as a timbre. When the acceleration sensor detects that the Maracas type device has been shaken, the sampled sound is played back. By adopting such a configuration, it is possible to use timbres of various objects as timbres, so that timbres not found in existing musical instruments can be emitted.

  In the present embodiment, a solenoid iron core is used as the hammer, but it is not limited to a solenoid as long as it has a mechanism for hitting an object in conjunction with a switch. Further, other components are not limited to the present embodiment, and can be changed without departing from the gist of the present invention.

  In FIG. 2 of the above example, the system including the voice processing circuit 9, the control circuit 8, the memory 20, and the battery 10 is built in the pad unit 2, but this system is also referred to as the pad unit 2. It can also arrange | position separately and can comprise so that the pad part 2 and the said system may be connected by wiring.

As described above, according to the embodiment of the present invention, it is possible to immediately and repeatedly reproduce the sound generated by hitting once, so that even a sound that has been heard so far can be heard in a different atmosphere. Can do. In addition, most of the things around us become objects, which stimulates people's curiosity and exploration.
Further, according to the present embodiment, it is possible to provide a sound collecting / reproducing apparatus having entertainment properties for the purpose of play.

Note that the sound collecting and reproducing apparatus according to the present embodiment is not limited to the entertainment world, and can be used elsewhere.
For example, when used in a sound test for a building, the sound of the sound that has been taken once can be reproduced repeatedly, so that the reliability of the test is improved. In addition, the conventional hammering test for buildings and the like has a problem that it requires skill to hit with a hammer and changes depending on the individual's ability, but according to this example, the reproducibility of the hammering sound can be improved. it can. Furthermore, not only that, it is possible to store the hitting sound in the apparatus itself and to reproduce it repeatedly on the spot, thereby facilitating the inspection of the hitting sound. Further, by preparing in advance a sound when there is a defect and a sound when there is no defect and comparing it with the collected data, it is possible to easily determine the inspection.

It is a schematic block diagram which shows one Embodiment of the sound collection reproducing | regenerating apparatus by this invention. It is the schematic block diagram which showed the inside of the pad part of the sound collection reproducing | regenerating apparatus which concerns on one embodiment of this invention. It is a figure which shows when the pad part in one embodiment of this invention contacts the target object. It is a circuit diagram which shows the control apparatus of one embodiment of this invention. In the sound collecting and reproducing apparatus according to an embodiment of the present invention, it is a diagram schematically showing the relationship between an input sound, a sampled sound, an output sound, and a switch. It is a circuit diagram of the control apparatus in the modification 1 of one embodiment of the present invention. It is a circuit diagram of the control apparatus in the modification 2 of one embodiment of the present invention.

Explanation of symbols

1 .... Sound collecting / playback device, 2 .... Pad part, 3 .... Pad bottom part, 4 .... Switch, 5 .... Hammer, 6..Microphone, 7 .... Earphone part, 8 .... Control circuit, 9 .... Audio processing circuit, 10 .... battery, 11 .... control unit, 12 .... variable resistor, 13 .... amplifier, 14 .... AD conversion, 15 .... DSP, 16 .... data transmission path, 17 .... CPU, 18 · · ROM, 19 · · RAM, 20 · · Memory, 21 · · Amplifier, 23 · · Initial setting, 24 · · Object, 25 · · Solenoid, 26 · · Wireless, 27 · · Antenna, 28 · · Existing Data, 29 ... pattern comparison, 30 ... object type, 31 ... judgment, 32 ... wiring, 100 ... casing

Claims (5)

Switch for detecting contact with an arbitrary object, tapping means for tapping the surface of the object, a microphone for collecting a tapping sound generated when the surface of the object is struck, and voice processing A sound collecting / reproducing main body provided with a circuit and a memory in a housing,
Information on the sound collected by the microphone is stored in a memory, and the information stored in the memory is reproduced a plurality of times at a predetermined cycle. The sound collecting and reproducing apparatus according to claim 1, wherein the information stored in the memory is reproduced repeatedly while the switch is in contact with an arbitrary object. The sound collecting / reproducing apparatus according to claim 1, wherein the memory is detachable from the sound collecting / reproducing main body. The sound collecting / reproducing apparatus according to claim 1, wherein the collected sound information is wirelessly transmitted. Switch for detecting contact with an arbitrary object, tapping means for tapping the surface of the object, a microphone for collecting a tapping sound generated when the surface of the object is struck, and voice processing A sound collecting / reproducing main body provided with a circuit and a memory in a housing,
Turning on the switch by the object to bring the microphone, the sound processing circuit, and the memory into an operating state;
Storing information on the sound collected by the microphone in a memory;
A method of collecting and reproducing sound, wherein the information stored in the memory is reproduced a plurality of times at a predetermined cycle during a period when the switch is on.

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