JPS61500644A - sound reproduction system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] sound reproduction system Technical field The present invention reproduces recorded sounds, especially musical sounds, in such a way as to enhance the listener's pleasure. The ultimate goal of a system for playing recorded music is to The purpose is to generate sound in such a way that the listener cannot distinguish it from a live performance.

One can hear a live performance of a musical work, for example, by conveying it to a concert performer, while others can perform it in a concert hall. It reaches the listener through rich reverberations and echoes within itself. People experience live music. This richness or richness of the sound experienced is usually lacking in home playback equipment. Ru.

Most of the sophisticated recording equipment in use today is capable of capturing all the sonic needs of live music. Anse can be captured. And some of the records used today can be determined by holding and generating an electric symbol f corresponding to the quality of the sound. deer However, home sound reproduction systems that the average individual can purchase are limited to live music. cannot play the sound. This means that even if your home system is to play in the low, medium and high frequency ranges exhibited by most musical compositions. , this applies even when equipped with specially adapted speakers. today's messenger Most home systems in use also have two channels, or stereophonic sound. , can reproduce sound, and some have 4-channel stereophonic sound. It can even be played.

Speakers from several different frequency ranges can be housed in a single cabinet or enclosure. into the speaker, and simply point all speakers in the system roughly toward the listener. The habit of attaching the sound to the first backful board inherently controls the quality of the sound that the listener hears. It has long been known that Sound played on such systems is from a point source within each speaker enclosure or from the wall or surface containing the speaker. The listener can feel it coming. When the sound surrounds the listener, as in the case of a live performance, Rather, the listener feels that the sound is directed at him.

Trying to escape from this point source or wall sound source.

The prior inventor physically replaced the speakers in the system with each other, and the sound Helped with orienting the speakers in new directions to point them in different directions. . At least in theory, some of these systems could be used for something more like live music. It is intended to produce directional or omnidirectional sound.

Arany, D., September 1962 for “Sound Reproduction System” U.S. Patent No. 3,054.856, granted on 18th Some speakers have been reoriented within the enclosure in an attempt to obtain radiation. Disclose the system that will be used. This system places the ends of a sealed box facing each other. It uses a pair of low frequency ranges, namely a woofer and a speaker, arranged in Ru. These speakers are electrically connected so that they vibrate in the same direction depending on the signal. It is. In other words, they are arranged in a Gutshupuru array. some In the high frequency range, the tweeter and speaker are placed in the box between the woofer and speaker. located and oriented axially and outwardly in the four quadrants of the box.

The Arany patent uses a low-frequency region speaker arrangement that is low-frequency. It has the effect of emphasizing the number radiation, and also has the effect of emphasizing the radiation from the concave side of the speaker. In other words, the sound radiates from the back of these speakers, that is, from the convex side. This allows sound to be transmitted in all directions without the directional radiation found in typical commercial assemblies. It states that the data will be sent uniformly.

Carlsson (S, Ctrlsson) for "Sound reproduction system for stereophonic sound" No. 4,006,311, granted February 1, 1977, In an attempt to achieve omnidirectional reproduction, the speakers in the low, medium and high frequency ranges are Another sound reproduction system directed toward the present invention is disclosed. of this system The basic principle underlying this is the sound room, which measures the amount of sound that reaches the listener directly. Recognizing that there should be a certain ratio between the amount of sound reflected from the wall and the amount of sound reflected from the wall. be. For this purpose, the speakers direct the sound at a specific angle towards the adjacent walls of the room. The sea urchins are placed in the same direction. The problem with such a system is that even though it is practical, , for proper operation, one speaker enclosure or multiple Enclosures are strategically placed with respect to the walls of the room and with respect to the listener. This would greatly reduce the versatility of such equipment. This means that

19 for Rain (H, Line) for “Planar sound reproduction speaker system” U.S. Pat. No. 4,199,657, issued April 22, 1980, of the resonance that exists in conventional sound reproduction equipment that has two or more speakers in the cabinet. Claim to have solved the problem.

Rain has installed several high-frequency range speakers into a cabinet that supports mid-range speakers. Individual cabinets supported by tubular members projecting from the side walls of the net It is proposed to be placed in This combination of high and midrange speakers Another column with a pedestal separated from the cabinet housing the wavenumber domain loudspeaker. supported above. This system also receives definitive evaluation from discerning listeners. failed to receive.

Disclosure of invention A principal object of the present invention is that sound is not directly removed from structures or surfaces containing structures; Recorded sounds are made to appear as if they radiate from around the system structure. It is about rebirth. The effect achieved by the present invention is that the listener can hear the live performance. The sound creates the same atmosphere surrounding the playback device as when listening to the sound emitted from the device. This is because the listener feels as if the recorded sound is being played back. The joy of listening to live music is enhanced.

This objective and desired result is achieved by using conventional configurations for assembling sound reproduction systems. This is accomplished by a special mechanical and electrical arrangement of the elements. In other words, improved The developed system uses conventional low, medium and high frequency speakers; Through orientation and electrical connections, traditional components can provide unexpected sound reproduction. There are two basic concepts underlying the present invention. child The first of these is the placement and operation of the low frequency area speakers incorporated into the system. related. The second concept focuses on high frequency range speakers. Regarding low frequency region To the extent that The speaker is housed in a single cabinet, i.e. an enclosure, inside and facing outward from each opposing side of the cabinet. There is. These low frequency range loudspeakers are electrically powered to operate in the Bushzol manner. physically connected.

In other words, the electrical signals received by each low frequency speaker are out of phase with each other. are shifted by 180 degrees, and as a result, the movable parts of each of the two speakers are Although they face in opposite directions, they are driven simultaneously so that they move in the same direction. This way The moving parts of the loudspeaker are complementary to each other and Please do not interfere with each other's movements. The sound from the low frequency range speakers is in the opposite direction. i.e. one direction towards the listener and the other direction away from the listener, and towards the cabinet. directed outward. This arrangement enhances the naturally omnidirectional nature of low frequency sounds. It has the effect of The sound coming from the cabinet that houses the low frequency speakers and the corresponding The sound surrounding the cabinet creates an atmosphere or vortex around the speaker cabinet. appears.

The high frequency region, i.e. the tweeter, the loudspeaker, moves away from the listener, and Preferably oriented approximately perpendicular to the direction of the low frequency range speaker facing the listener. It is also important to the invention that the high frequency range speaker The sound emanating from the You can immediately remember that the radiation is coming from a specific location, that is, a high-frequency speaker.

The result is that the sound from the high-frequency range speakers is reduced by the low-frequency waves surrounding the cabinet. It is completely transformed by directing outward through the atmosphere or vortex of the sound of numbers.

The fact that multiple high frequency range loudspeakers are used and that these The speakers are stacked in an array above the area cabinets, with each speaker pointing upwards. the speaker is placed at the rear, i.e. at least some small distance away from the listener. That is even more preferable f6. This arrangement of high frequency speakers This has the effect of further reducing the customary highly localized operating characteristics of the car.

A system embodying the invention also has eight speakers between low and high frequency speakers. , preferably includes at least one mid-frequency region loudspeaker. This problem has become The positioning of the speaker force is less erratic than the positioning of speakers in the low and high frequency range. Yes, that is.

Placed outside and above the cabinet or enclosure for low frequency range speakers. properly placed.

The invention will be described in more detail with reference to the accompanying drawings.

Figure 1 is a three-quarter perspective view from above of a sound reproduction system embodying the present invention; The figure shows a broken section to show the inside of the cabinet that houses the low frequency range speakers. and a side view of the device of FIG. 1 with a shortened high frequency domain array; Figure 1 is a plan view from above of the sound reproduction system, Figure 4 is the high frequency of the system. FIG. 5 is a fragmentary perspective view illustrating details of the mount of one of the area speakers; is a schematic diagram of an electric circuit of the sound reproduction system.

BEST WAY TO CARRY OUT THE INVENTION Figures 1, 2, and 3 show the configuration of a sound reproduction system implementing the present invention. The mechanical arrangement of the elements is shown in their entirety. The main elements are a pair of low frequency regions , namely a woofer, speakers 11 and 12. one medium frequency range speaker 13 and A plurality of high frequency regions, namely tweeters and speakers 14.

All the speakers mentioned above are of conventional construction and are suitable for use in home sound reproduction systems. This is a commonly used type. Low frequency speakers 11 and 12 are It preferably has a diameter of about 15 inches to about 20 inches, and has a high frequency of up to 40 Hz. Compliance sound output is possible. Speakers 11 and 12 are front speakers. A front wall 17 and a rear wall 1 facing each other are fitted with a rear spring 12 and a rear spring 11, respectively. It is housed in a cabinet or enclosure 16 having 8. wall 17 and 18 have openings, and the speakers 11 and 12 are connected to the keys through these openings. The sound is radiated to the outside of the cabinet 16. The cabinet 16 is preferably made of plywood. Also, earthen walls with vibrations suppressed by the application of glass fiber mats 19. and a side wall.

The medium frequency range speaker 13 is located on the top surface of the cabinet 16, on one side of the front side. It is preferably mounted near the corner. If the sound reproduction system of the present invention If used in pairs, such as in Hibiki's sound reproduction, the two systems can interact with each other. Medium frequency mounted in the opposite front corner, preferably on the side closer to the other system A multi-area speaker 13 may be preferably provided.

According to the invention, a plurality of high frequency domain loudspeakers are used; The number usually ranges from 2 to 4. The speaker 14 is mounted on the cabinet 16. from a pair of angles 21 whose lower ends 22 are rotatably connected to a base 23 as a stacked array above the cabinet 16 by support means consisting of Supported. If desired, the base 23 faces upward from the cabinet 16. It may also be placed on the shaft 24. As a result, the base 23 and the high frequency range speaker The array of keys 14 is now able to rotate about a vertical axis. Axis 2 if desired 4 may be removed. In this case, the base 23 simply rests on the cabinet 16. You can just move it around on the cabinet.

The purpose of the pivotable connection at the lower end 22 of the angle 21 is to By allowing the high frequency range speaker 1 to be swung forward or toward the 4 and the listener located in front of the sound reproduction system can be varied. By doing this, you can get rid of it. The exact location of angle 21 depends on the personal preference of each individual listener. Although this is a problem, if the angle is located approximately 50' to 606' from the horizontal It has been found that the best desired results are obtained. high frequency range Each of the speakers 14 is connected to the angle when the angle is moved. A rotatable connection 26 (fourth (see figure) to the angle 21. high frequency range speaker The sound radiated from has a highly directional nature. And this improvement To obtain the omnidirectional or omnidirectional effect sought in a sound reproduction system In this case, the high frequency range speaker 14 should not be aimed directly at the listener. actual, The high frequency range speaker 14 is facing the low frequency range speakers 11 and 12. The most satisfactory results are obtained when oriented approximately perpendicular to the direction. Figure 1? In the floor-standing system shown in FIG. 3 and described above, the loudspeaker 14 It is suitably arranged so that it radiates in the direction. However, the system is It can also be placed upside down to hang from the ceiling.

The above-described mechanical arrangement or arrangement of the components of this improved sound reproduction system. In addition to , the present invention further contemplates a special electrical arrangement of the components.

A preferred circuit diagram of the components is shown in FIG. are identified by the same reference numerals as before. This circuit has positive and negative terminals, respectively. specified and adapted to receive electrical signals from conventional amplifiers A pair of input terminals 27 and 28 are provided. The positive terminal 27 To transmit electricity from each of the six peakers 11, 12, 13 and 14 to one side. and is connected to the lead wire 29. Negative terminal 28 is electrically connected to each speaker element. The negative lead 30 connects to the opposite side of the line. positive lead The line 29 passes through the choke 31 to the low frequency range speaker 11 facing forward. It is connected to the so-called positive terminal. The negative lead wire 30 is the so-called speaker 11 connected to the negative terminal. According to the invention, the rear low frequency range speaker 1 The electrical connections to 2 are opposite to front speakers 11. In this case, positive lead 2 9 connects the rear low frequency range through the choke 31 and the variable resistor 32. It is connected to the so-called negative terminal of the peaker 12. This arrangement allows the speaker 11 and 12 receive electrical signals that are essentially 1800 degrees out of phase with each other; As a result, when the speaker cone of the front speaker 11 is moved forward, the rear speaker The speaker cone of speaker 12 moves backwards with respect to the speaker itself, but When it comes to the net, move forward. Therefore, the movable elements of the two speakers 11 and 12 operates on the so-called Zotsushisol method. Speakers 11 and 12 are made using this method. The effect of moving is the generation of a sound field that spreads around the cabinet 16 as an atmosphere. It is. The listener will notice that the sound is not coming from the speakers 11 and 12, but from the cabinet 16. It feels like it's coming from a space that surrounds me.

The relative electrical drive of speakers 11 and 12 is as follows.

By means of a variable resistor 32 that adjusts the strength of the electrical signal reaching the rear speaker 12. , can be adjusted to the listener's preference.

The choke 31 is a part of what is generally called a "divided circuit", and this division The circuit has a frequency that allows low, medium and high frequency range speakers to convert each into audible sound without distortion. Electricity sent from an amplifier to a sound reproduction system so that it receives only the wavenumber signal P-wave the signal.

The midrange speaker 13 is also connected to the leads 29 and 30, and is connected to the leads 29 and 30. is a variable resistor 33 that controls the volume of the speaker 13, a channel 34, and a controller. It is connected via another component of the split circuit consisting of a capacitor 35. positive lee The lead wire 29 is preferably connected to the so-called negative connection end of the speaker 13; means that the negative lead wire 30 is connected to the so-called positive connection end.

The portion of the dividing circuit that controls the supply of electrical signals to the high frequency range speaker 14 is A plurality of capacitors 3 suitably connected to the loudspeaker 14 in the manner shown in FIG. Consists of 6. The arrangement shown in FIG. It includes one capacitor 36 connected between the end and the positive lead 29.

The other pair of capacitors 36 connect the negative lead 30 and the two pairs of speakers 14. is connected between the negative terminal and the negative terminal.

The mechanical and electrical arrangement of the elements described above essentially enhances the user's listening pleasure. To provide a sound reproduction system capable of generating omnidirectional sound.

Taking into account the fact that listening preferences vary from person to person, the system includes , with many distinctive features that allow the system to be tailored to individual user preferences. It has a built-in clause device. From an electrical standpoint, the variable resistor 33 Sound coming from low frequency range speakers 11 and 12 and medium frequency range speaker 13 This allows you to balance the amount of sound from these speakers. is mixed with the sound coming from the rest of the system's speakers. Support rod 21 The adjustment of the angular position of the and high frequency range on cabinet 16. The movement of the entire loudspeaker array allows the high frequencies of the sound produced by the system to be Allows the user to change the properties of the region.

Submission of translation of written amendment (Article 184-7, Paragraph 1 of the Patent Act) August 1, 1985 Mr. Michibe Uga, Commissioner of the Patent Office 1. Display of patent application PCT/US84101968 ．． 26 Name of invention sound reproduction system 3. Percentage applicant Address: Alicina, USA 85007.

Phoenix, Cland Apenu 1716? v% I~, Raymond M.

4. Agent Address: 5-8-1o Toranomon-chome, Minato-ku, Tokyo 105, Date of submission of amendment April 15, 1985 (reception date) 6. List of attached documents Special clothes Showa 6l-500644 (6) 2 tributes - formal R1 blue request 1 village round 13, (new) two speakers with moving parts, a substrate, a top plate, and an opening extending between the substrate and the top plate for a speaker; a speaker enclosure f1 having wall means including a pair of substantially opposing side walls; the enclosure such that the movable part of each of the speakers radiates sound outwardly; one of each of the speaker openings on one of each of the opposing walls of the means for mounting one of each of the speakers in a conventional manner; Although the movable parts of the speaker are arranged facing in opposite directions, The above-mentioned speakers are attached and layered so that they vibrate in the same direction when stimulated! Kushyoguru means for driving; The sound field generated by driving the loudspeaker is caused by the sound field generated by driving the loudspeaker. The box surrounding the cabinet is filled with sounds that feel like they are coming from the space surrounding the cabinet. A sound reproduction system that spreads as the surrounding atmosphere.

14, (fr) The two springs with the movable parts are connected to the low frequency region speaker. a high frequency domain switch coupled to the enclosure; 14. The sound reproduction system according to claim 13, comprising a speaker.

15. (New) The plurality of high frequency region speakers and the speaker enclosure the plurality of high frequency domain speakers as a stacked array; 15. The sound reproduction system according to claim 14, further comprising means for mounting the sound reproduction system.

16, (fr) the speaker located farthest from the speaker enclosure; a high frequency range speaker arranged closest to said enclosure; The stack is placed at a greater distance from the listener than frequency domain loudspeakers. 10. The method of claim 1, further comprising means for adjusting the position of said loudspeaker in a tilted array. The sound reproduction system according to scope 15.

17, @) The high frequency region loudspeaker as the stacked array each of the two low frequency ranges mounted within the speaker enclosure. Means for holding the speaker so that it radiates sound in a direction approximately perpendicular to the direction of sound radiation 17. The sound reproduction system according to claim 16, characterized by:

18, (New) Combined with at least one of the two speakers having the movable part. , the electric level of the speaker is controlled by the second speaker of the two speakers. 14. The acoustic device according to claim 13, characterized in that the acoustic device includes means for adjusting in relation to the level at which the sound is played. playback system port 19, C1fr) coupled to the speaker enclosure; 15. The sound reproduction system according to claim 14, characterized by a medium frequency region speaker. Mu.

20. (New) A medium frequency range speaker coupled to the speaker enclosure. 16. The sound reproduction system according to claim 15, characterized by a marker.

21. (New) It is better to remove the sound reproduction system rather than the sound reproduction system itself. We have built a sound reproduction system that generates a sound field that feels like it is radiating from the surrounding space. A method for establishing almost horizontally in the sound enclosure so that the sound radiates outwards in a nearly horizontal direction. A pair of speakers with movable parts are attached to each of the two opposing side walls. step, and Although the movable parts of the speakers are mounted facing in opposite directions, the stimulation In order to vibrate in the same direction, K is a speaker that drives the speaker in a push-pull manner. Tep, A method of assembling a sound reproduction system comprising:

22. (New) The stacked array of high frequency area speakers coupling the high frequency range speaker to the enclosure a. Claim 2, characterized in that the steg is driven at a much higher frequency than The method described in Section 1.

23. (ffi) The screen located farthest from the sound enclosure The loudspeaker also listens to the loudspeaker arranged closest to the enclosure. Adjust the stacked array of speakers so that they are at a greater distance from the person. 23. A method according to claim 22, characterized by the step of adjusting.

24. (New) Each of the high frequency range speakers is installed in the enclosure chassis. the sound is radiated in a direction perpendicular to the sound radiation direction of the pair of speakers mounted on the 24. A method according to claim 23, characterized by the step of:

25. (New) Coupling a mid-frequency range speaker to the sound enclosure and mounting the mid-frequency range speaker in the enclosure. The frequency range in which a pair of speakers is driven and the high frequency range speaker are Claims characterized by the step of driving in a frequency domain between the frequency domain and The method according to paragraph 24.

26. (New) Drive level of one speaker installed in the enclosure a step for adjusting the speaker in relation to the other speaker installed in said enclosure. 26. A method according to claim 25, characterized in that:

27. (New) One of the speakers installed in the enclosure is almost facing the listener. while the other speaker emits sound in the direction away from the listener. positioning the speaker enclosure to radiate sound; 27. The method according to claim 26, characterized in that

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Claims (12)

[Claims] 1. a cabinet having two opposing sides; and a cabinet attached to the cabinet. and a pair of low frequency range speakers facing outward from each of the opposing surfaces. and a plurality of high frequency range speaker means mounted on the cabinet. Thus, each of the high frequency range speaker means is directed in substantially the same direction, and the low frequency range speaker means a plurality of areas oriented substantially at right angles to the direction in which the speaker means faces; means for supplying an electrical signal to the carrier means, the signal supply means being configured to said pair of low frequencies to operate the area loudspeaker means in a push-pull manner. and a sound reproduction system connected to area speaker means. 2. Claim wherein the high frequency range speaker means is directed upwardly of the cabinet. The sound reproduction system according to item 1. 3. The method of claim 1 further comprising medium frequency range speaker means mounted on the cabinet. The sound reproduction system according to scope 1. 4. The two opposing sides of the cabinet are the front and rear sides with respect to the listener. , and said high frequency range speaker means is stacked above said cabinet. the uppermost speaker means of the array; Sound reproduction according to claim 2, which is located farther from the listener than the lowest speaker. system. 5. The electric signal supplying means has different strengths for the two low frequency range speaker means. 2. A sound reproduction system as claimed in claim 1, further comprising means for providing a sound signal. 6. mounted on the cabinet and the same as one of the low frequency region speaker means; Claim 4 further comprising medium frequency range loudspeaker means oriented substantially in the direction. sound reproduction system. 7. The low frequency range speaker means has different strengths within the electrical signal supply means. 5. The sound reproduction system of claim 4 further comprising means for providing a signal. 8. an array of high frequency range speaker means extending upwardly from said cabinet; A support means for supporting a pivotably attached to said cabinet so that the relationship can be changed; 5. The sound reproduction system of claim 4, further comprising: 9. The high frequency range speaker means is maintained at a constant spacing along the support means. 9. The sound reproduction system according to claim 8. 10. The support means is also arranged such that the support means can be pivoted about a vertical axis. The sound reproduction system according to claim 9, which is installed in a cabinet. 11. The signal supply means includes one speaker connected to the low frequency region speaker means. comprising a choke and a plurality of capacitors connected to the high frequency range speaker means; 2. The sound reproduction system according to claim 1, further comprising a dividing circuit. 12. The signal supply means includes one speaker connected to the low frequency region speaker means. a choke connected to said medium frequency range speaker means; a plurality of capacitors connected to the high frequency region speaker means. 4. The sound reproduction system according to claim 3, further comprising a dividing circuit including a sensor.