WO2006022380A1 - オーディオ再生装置 - Google Patents
オーディオ再生装置 Download PDFInfo
- Publication number
- WO2006022380A1 WO2006022380A1 PCT/JP2005/015562 JP2005015562W WO2006022380A1 WO 2006022380 A1 WO2006022380 A1 WO 2006022380A1 JP 2005015562 W JP2005015562 W JP 2005015562W WO 2006022380 A1 WO2006022380 A1 WO 2006022380A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- directivity
- channel
- control data
- audio signal
- directivity control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers
- H04R3/12—Circuits for transducers for distributing signals to two or more loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
- H04R2205/022—Plurality of transducers corresponding to a plurality of sound channels in each earpiece of headphones or in a single enclosure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
Definitions
- the present invention relates to an audio reproducing apparatus that reproduces a multi-channel audio signal using an array speaker.
- Patent Document 1 an apparatus for reproducing multi-channel audio by beam-outputting an audio signal using one array speaker has also been proposed (for example, Patent Document 1).
- Patent Document 1 by inputting the same audio signal to each speaker unit at the same time or a little at different timings, this audio signal can be output in the form of a beam based on the principle of superposition. That is, as shown in FIG. 2, by inputting the audio signal with the timing slightly shifted for each speaker unit, the beam is formed in an oblique direction, and this timing shift time (delay time) is set appropriately.
- this timing shift time delay time
- the audio signal of each channel can be obtained, for example, by appropriately setting the delay time of the audio signal of each channel of the multi-channel audio signal and inputting it to the array speaker.
- beams are output in different directions.
- center channel C (audio signal: the same applies below) is output directly to the front listener, but the front left channel FL and front right channel FR Therefore, the surround left channel SL and the surround right channel SR are reflected twice on the side wall and rear wall and then reach the listener, so that the listener receives the audio signal of each channel. It sounds as if they were coming from different directions, which enables multi-channel audio playback.
- Patent Document 1 Special Table 2003-510924
- the sound image desired by the user may differ depending on the type of content. For example, in the case of a large-scale movie, the sound image is spread over the entire surroundings, and in the case of a drama with a lot of dialogue, the sound image is not expanded but mainly the front power sound can be heard.
- a virtual spin force can be formed on the wall surface of the room by beam control. Since this virtual speaker can instantly realize an effect equivalent to the movement of the installation position, which is difficult with the real-speech force, by simply changing its parameters, this feature can be used as a sound image variable function unique to the array speaker. In order to realize this function, it is necessary to control the beam setting of each channel with parameters different from normal ones according to the sound image (reproduction form). For this purpose, parameters must be prepared for each playback format, but if the parameters are calculated for each switching, the processing time becomes longer. In addition, when calculating the parameters for each playback format at the initial setting, there is a problem that the amount of data to be stored and managed increases!].
- An object of the present invention is to provide an audio reproducing apparatus capable of changing beam settings with a simple configuration for reproducing a multi-channel audio signal by an audio beam using an array speaker. To do.
- the invention of claim 1 is based on an array speaker in which a plurality of speaker units are arranged in a matrix or a line, and multi-channel audio signals, and directivity control data set for each channel!
- the directivity control means for controlling the directivity of the audio signals of each channel in independent directions, the directivity control data storage means for storing the directivity control data for each channel, Directivity system for each channel Pattern storage means for storing basic patterns for assigning control data to corresponding channels, and deformation patterns for assigning directivity control data for different channels to some or all channels, and patterns for selecting the basic patterns or deformation patterns It comprises a selection means and a control means for setting directivity control data for the directivity control means based on the pattern selected by the pattern selection means.
- the invention of claim 2 is an array speaker in which a plurality of speaker units are arranged in a matrix or a line, and a center channel directivity control for controlling the directivity so as to output an audio signal toward the listening position.
- Direct channel directivity control data and audio signals are reflected to the left or right wall and back wall to control the directivity so that the data and audio signals are reflected on the left or right wall to reach the listening position.
- a directivity control unit that stores directivity control data for surround channels that controls directivity so as to reach the capture position, and that individually inputs multi-channel audio signals to the array speaker by controlling directivity.
- a directivity control method in an audio playback device comprising:
- the directivity of the center channel audio signal is controlled using the directivity control data for the center channel, and the directivity of the audio signal of the front channel is controlled using the directivity control data for the center channel or a preset fixed value.
- the directivity is controlled by using the directivity control data for the front channel for the audio signal of the surround channel.
- the invention of claim 3 is an array speaker in which a plurality of speaker units are arranged in a matrix or a line, and a center channel directivity control for controlling the directivity so as to output an audio signal toward the listening position.
- Direct channel directivity control data and audio signals are reflected to the left or right wall and back wall to control the directivity so that the data and audio signals are reflected on the left or right wall to reach the listening position.
- a directivity control unit that stores directivity control data for surround channels that controls directivity so as to reach the pick-up position, and inputs multi-channel audio signals to the array speaker by independently controlling directivity,
- a directivity control method In an audio playback device equipped with A directivity control method,
- the directivity is controlled using the directivity control data for the front channel.
- the invention of claim 4 is an array speaker in which a plurality of speaker units are arranged in a matrix or a line, and a center channel directivity control for controlling the directivity so as to output an audio signal toward the listening position.
- Direct channel directivity control data and audio signals are reflected to the left or right wall and back wall to control the directivity so that the data and audio signals are reflected on the left or right wall to reach the listening position.
- a directivity control unit that stores directivity control data for surround channels that controls directivity so as to reach the pick-up position, and inputs multi-channel audio signals to the array speaker by independently controlling directivity,
- a directivity control method in an audio playback device comprising:
- the invention of claim 5 is an array speaker in which a plurality of speaker units are arranged in a matrix or a line, and a center channel directivity control for controlling the directivity so as to output an audio signal toward the listening position.
- Direct channel directivity control data and audio signals are reflected to the left or right wall and back wall to control the directivity so that the data and audio signals are reflected on the left or right wall to reach the listening position.
- a directivity control unit that stores directivity control data for surround channels that controls directivity so as to reach the pick-up position, and inputs multi-channel audio signals to the array speaker by independently controlling directivity,
- a directivity control method in an audio playback device comprising:
- Center channel and surround channel audio signals are This is characterized by down-mixing the audio signal of the two channels, and controlling the directivity of the down-mixed audio signal using center channel directivity control data or a preset fixed value.
- a multi-channel audio signal can be reproduced by controlling directivity.
- the front left and right channels (the audio signal) are reflected once on the left and right walls to reach the listener, and the surround left and right channels are reflected on the left and right walls and the back wall.
- the multi-channel audio signal is output with a basic directivity control pattern that “the center channel reaches the listener with direct sound”.
- the directivity control pattern by changing the directivity control pattern from the basic one described above, it is possible to change the localization of each channel and change the spread of the sound image. For example, “Front left and right channels are controlled by directivity control data of the center channel, and surround left and right channels are controlled by directivity control data of the front left and right channels”. As a result, the directivity control data of the basic pattern without calculating and storing new directivity control data can be diverted to control the directivity to different patterns.
- the directivity control pattern (beam setting pattern) corresponds to the installation location of the speaker in the real multi-speaker system. Since the directivity control pattern can be changed simply by changing the directivity control data set for each channel, the user can change the setting according to the playback content and playback environment, and the real time It is possible to obtain an effect as if the installed position of the speaker was changed. For example, if a plurality of directivity control patterns are stored in a table in advance and a setting pattern can be freely set using a button or the like on the remote controller, the setting can be easily changed for the user.
- a plurality of directivity control patterns can be created by diverting a basic set of directivity control data to other channels, and each can be selected as a playback mode. This makes it easier to set up without having to create a single mode for each user.
- the storage area and data are reduced by minimizing the data to be stored and managed. Data processing load and system design can be simplified.
- FIG. 1 is a diagram showing a configuration of an array speaker used in a multichannel audio system according to an embodiment of the present invention.
- FIG. 4 Diagram showing a pattern table that stores multiple beam setting patterns
- a multi-channel audio system according to an embodiment of the present invention will be described with reference to the drawings.
- 5 channels of multi-channel audio signals can be surround-reproduced without installing 5 speaker systems by using one array speaker and beam-outputting the audio signals of each channel.
- It is a system that can.
- As a pattern of directivity control (beam setting) for each channel one basic pattern (5 channels A: see Fig. 3 (A)) and four deformation patterns (Fig. 3) using the beam control data of this basic pattern. 3 (B) to (E)) are stored in a table (see Fig. 4).
- the array speaker uses a line array speaker system in which a speaker / speaker unit (speaker unit) is arranged in a hard cam shape as shown in FIG.
- the array speaker is not limited to the one shown in the figure, and a speaker in which a plurality of speaker units are arranged in a row or matrix can be used.
- the same audio signal is output from each speaker unit, and the output timing of each speaker unit reaches the predetermined point (focal point) in space.
- the audio signal can be output in the form of a beam having directivity in the focal direction by the principle of superposition.
- each channel of the multi-channel audio signal is By controlling the timing so that the channel audio signals are beamed in different directions and inputting them to the array speakers (in each speaker unit, the audio signals of each channel are superimposed and input). As shown in Fig. 3 (A), the audio signals of the channels are propagated by being beamed in different directions and incident on the listener from different directions.
- tap data for controlling the output timing to each speaker unit based on the path length (focal length) and the focal direction (beam angle)
- reflection Set the gain to be input to the gain multiplier to compensate for attenuation due to the gain correction value
- parameters such as equalization data to set the equalizer to compensate for changes in sound quality due to the beam angle and the material of the reflecting wall ( Beam control data) for each channel shown in Figure 3 (A) (center channel beam control data, front left channel beam control data, front right channel beam control data, surround left channel) Beam control data, surround right channel beam control data) is stored in memory 11 (see Figure 5). It is stored.
- the beam setting pattern in Fig. 3 (A) is a basic form (basic pattern) of multi-channel playback using array speakers.
- a rectangular room close to a square is used vertically and an array speaker is installed in the center of the wall. It is an example.
- audio signals of each channel are output as follows.
- Center channel C (audio signal: same below) is output directly to the front listener.
- Center channel C may or may not be beamed.
- the front left channel FL and front right channel FR are reflected once on the side wall and beamed to reach the listener.
- the surround left channel S L and the surround right channel SR are beamed so as to reach the listener after reflecting twice on the side wall and rear wall.
- the center channel C also has frontal power for the listener, the front left channel FL and the front right channel FR arrive diagonally from the left and right, and the surround left channel SL and the surround right channel SR are diagonally rearward. As a result, it reproduces multi-channel audio in a pseudo manner.
- mode 1 is the basic pattern (5 channel A) shown in FIG.
- This pattern is a basic pattern that simulates a real multi-speaker system in an ideal environment with left and right side walls and a rear wall that reflect sound.
- Mode 2 is a 5-channel B pattern shown in FIG.
- the front left and right channels FL, FR are output directly to the listener using the center pattern beam control data of the basic pattern or preset fixed values, and the surround left and right channels SL, SR Is reflected once from the side wall using the beam control data of the front left and right channels of the basic pattern and output so as to reach the listener.
- the front channel audio signal is output from the speaker units in some areas on the left and right sides of the aliasing force as shown in Fig. 1 (B). For this reason, the output level is increased by + ⁇ with respect to the level setting value of the center channel so that the volume balance with other channels is not lost.
- This deformation pattern is suitable for cases where rear reflection is not possible, such as no rear wall, when the front channel is too wide with the standard pattern, or when the sound heard from behind such as music content is unnatural. Pattern.
- Mode 3 is a pattern of three channels ⁇ shown in Fig. 3 (C).
- the front left and right channels FL and FR and the center channel C are controlled by the beam control data as in the basic pattern
- the surround left and right channels SL and SR are controlled by the side walls using the left and right front channel beam control data of the basic pattern. It is reflected once and output to reach the listener.
- This deformation pattern is suitable for cases where rear reflection is not possible, such as when there is no rear wall, and a sense of spaciousness of the sound image is desired.
- Mode 4 is a 3 channel B pattern shown in FIG. 3 (D).
- the front left and right channels FL and FR and the surround left and right channels SL and SR Using the beam control data of the center channel of the turn or a preset fixed value, the sound is output directly from the speaker units in the left and right areas of the array speaker to the listener.
- This deformation pattern is suitable for use environments where reflection cannot be expected at all, or when clarity of speech is desired.
- Mode 5 is a two-channel pattern shown in FIG.
- the center channel C and surround channels SL and SR are downmixed by the decoder to the front left and right channels FL and FR, and the downmixed front left and right channels FL and FR are used as the basic pattern center channel beam control data.
- the sound is output directly from the speaker units in the left and right areas of the array speaker to the listener.
- This deformation pattern is a suitable pattern when it is desired to use it as a normal stereo sound, such as when watching TV, or when it is used in an environment where no reflection can be expected.
- the mode (beam setting pattern) can be selected according to the user's preference, regardless of the usage environment in which the content is played, without being limited to the above-mentioned preferable conditions. Of course, you can choose freely.
- FIG. 5 is a block diagram of the multi-channel audio system.
- This audio system consists of an array speaker 1 and a circuit section 2.
- the array speaker 1 is an array of speaker units as shown in FIG. 1, and is housed in a housing (speaker box).
- the circuit unit 2 may be housed integrally with the array speaker 1 or may be a separate body.
- the circuit unit 2 includes a control unit 10, a pattern memory 11, a decoder 13, a signal processing unit 14, an amplifier 16 and a user interface 17.
- the decoder 13 is connected to the digital audio input terminal 12, and decodes the digital audio data input from the digital audio input terminal 12 into a multi-channel audio signal. In this embodiment, it is decoded into a 5-channel audio signal.
- the decoded 5-channel audio signals (center C, front left FL, front right FR, surround left SL, surround right SR) are input to the signal processor 14. Depending on the playback mode, Center C, Surround Left SL, Surround Right SR Audio signal is downmixed to front left FL and front right FR and output.
- the signal processing unit 14 includes signal processing units 14FL, 14FR, 14SL, 14SR, 14C for each audio channel and an adder 24 for each speaker unit.
- the signal processing unit for each audio channel consists of an adjustment unit (ADJ) 22 and a directivity control unit (Dire) 23.
- the signal processing unit 14 is configured by a DSP, and each functional unit is configured by a microprogram.
- the adjustment unit 22 is a functional unit that compensates for changes in volume and sound quality due to the path length of each beam, the number of reflections, and the like of the audio signal of each channel output from the decoder 13.
- the adjusting unit 22 includes a gain coefficient multiplier, an equalizer, and a delay unit.
- Gain factor The multiplier multiplies the audio signal by a gain factor to compensate for attenuation due to the distance the beam reaches the listener and the number of reflections.
- the equalizer adjusts the gain for each frequency band to compensate for the frequency characteristics of the speaker unit itself of the array speaker 1 and the high-frequency attenuation caused by reflection on the wall surface.
- the delay unit is a functional unit that delays each beam (including direct sound) according to the distance to the listener in order to compensate for the difference in arrival time to the listener due to the difference in beam path length. .
- the directivity control unit 23 is a functional unit that controls the timing at which the audio signal is output to each speaker unit in order to output the audio signal as a beam directed to a predetermined focal point.
- This function unit is realized, for example, by providing an output tap for each speaker unit in the shift register.
- the audio signal for each speaker unit output from the directivity control unit 23 is synthesized for each speaker unit by the adder 24, converted into an analog signal by the DZA converter 15, and then input to the power amplifier 16.
- the power amplifier 16 amplifies this audio signal and inputs it to each speaker unit of the array speaker 1.
- the speaker unit emits this audio signal as air vibration.
- the control unit 10 controls the signal processing unit 14 based on the beam control data and the pattern table (see FIG. 4) stored in the memory 11.
- the control unit 10 reads out the beam setting pattern in the playback mode corresponding to the playback mode instructed by the user (listener) via the user interface 17, and The beam control data to be set in the signal processing unit of the channel is determined.
- the control unit 10 reads the beam control data from the memory 11, and sets the adjustment unit 22 and the directivity control unit 23 of each channel to predetermined functions based on the beam control data. That is, predetermined parameters are set in the gain coefficient multiplier, equalizer, and delay unit of the adjustment unit 22, and an output tap is set in the directivity control unit 23 in accordance with the beam direction (focal length).
- the user interface 17 includes an infrared remote control device, and this infrared remote control device has a button switch (playback mode selection button) for selecting each of the playback modes.
- this infrared remote control device has a button switch (playback mode selection button) for selecting each of the playback modes.
- the operation information is transmitted to the control unit 10, and the control unit 10 immediately switches the beam setting pattern (even during content playback).
- the playback mode may be automatically selected accordingly.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Stereophonic System (AREA)
- Circuit For Audible Band Transducer (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005800287301A CN101010986B (zh) | 2004-08-26 | 2005-08-26 | 音频再现设备 |
| EP05774560A EP1788846B1 (en) | 2004-08-26 | 2005-08-26 | Audio reproducing system |
| US11/574,248 US8391521B2 (en) | 2004-08-26 | 2005-08-26 | Audio reproduction apparatus and method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-246963 | 2004-08-26 | ||
| JP2004246963A JP3915804B2 (ja) | 2004-08-26 | 2004-08-26 | オーディオ再生装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006022380A1 true WO2006022380A1 (ja) | 2006-03-02 |
Family
ID=35967582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/015562 Ceased WO2006022380A1 (ja) | 2004-08-26 | 2005-08-26 | オーディオ再生装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8391521B2 (ja) |
| EP (1) | EP1788846B1 (ja) |
| JP (1) | JP3915804B2 (ja) |
| CN (1) | CN101010986B (ja) |
| WO (1) | WO2006022380A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7022796B2 (en) * | 2001-01-12 | 2006-04-04 | Fina Technology, Inc. | Production of ultra high melt flow polypropylene resins |
Families Citing this family (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4251077B2 (ja) * | 2004-01-07 | 2009-04-08 | ヤマハ株式会社 | スピーカ装置 |
| JP3915804B2 (ja) | 2004-08-26 | 2007-05-16 | ヤマハ株式会社 | オーディオ再生装置 |
| JP4779381B2 (ja) * | 2005-02-25 | 2011-09-28 | ヤマハ株式会社 | アレースピーカ装置 |
| JP2007259088A (ja) * | 2006-03-23 | 2007-10-04 | Yamaha Corp | スピーカ装置およびオーディオシステム |
| JP4713396B2 (ja) * | 2006-05-09 | 2011-06-29 | シャープ株式会社 | 映像音声再生装置、及びその音像移動方法 |
| JP4561709B2 (ja) * | 2006-07-28 | 2010-10-13 | ヤマハ株式会社 | オーディオシステム |
| EP2100297A4 (en) * | 2006-09-29 | 2011-07-27 | Korea Electronics Telecomm | DEVICE AND METHOD FOR CODING AND DECODING A MEHROBJECT AUDIO SIGNAL WITH DIFFERENT CHANNELS |
| JP4973919B2 (ja) | 2006-10-23 | 2012-07-11 | ソニー株式会社 | 出力制御システムおよび方法、出力制御装置および方法、並びにプログラム |
| US8050434B1 (en) * | 2006-12-21 | 2011-11-01 | Srs Labs, Inc. | Multi-channel audio enhancement system |
| JP4962047B2 (ja) * | 2007-03-01 | 2012-06-27 | ヤマハ株式会社 | 音響再生装置 |
| JP5082517B2 (ja) * | 2007-03-12 | 2012-11-28 | ヤマハ株式会社 | スピーカアレイ装置および信号処理方法 |
| JP4449998B2 (ja) | 2007-03-12 | 2010-04-14 | ヤマハ株式会社 | アレイスピーカ装置 |
| JP5012165B2 (ja) * | 2007-04-19 | 2012-08-29 | ヤマハ株式会社 | 音響再生装置 |
| JP4488036B2 (ja) | 2007-07-23 | 2010-06-23 | ヤマハ株式会社 | スピーカアレイ装置 |
| US9031267B2 (en) * | 2007-08-29 | 2015-05-12 | Microsoft Technology Licensing, Llc | Loudspeaker array providing direct and indirect radiation from same set of drivers |
| KR101292206B1 (ko) | 2007-10-01 | 2013-08-01 | 삼성전자주식회사 | 어레이 스피커 시스템 및 그 구현 방법 |
| US9177371B2 (en) * | 2008-06-09 | 2015-11-03 | Siemens Energy, Inc. | Non-destructive examination data visualization and analysis |
| TR200805702A2 (tr) * | 2008-08-01 | 2010-02-22 | Vestel Elektroni̇k Sanayi̇ Ve Ti̇caret A.Ş | Bir ses projektöründe ses ışınlarının yayılımının ayarlanması |
| KR101295849B1 (ko) | 2008-12-18 | 2013-08-12 | 삼성전자주식회사 | 음향 방사 패턴 제어 장치 및 방법 |
| JP5577597B2 (ja) | 2009-01-28 | 2014-08-27 | ヤマハ株式会社 | スピーカアレイ装置、信号処理方法およびプログラム |
| JP5293291B2 (ja) * | 2009-03-11 | 2013-09-18 | ヤマハ株式会社 | スピーカアレイ装置 |
| JP2011165134A (ja) * | 2010-02-15 | 2011-08-25 | Sony Corp | コンテンツ再生装置、携帯機器、及び異常検知方法 |
| JP5417227B2 (ja) * | 2010-03-12 | 2014-02-12 | 日本放送協会 | マルチチャンネル音響信号のダウンミックス装置及びプログラム |
| JP5821172B2 (ja) | 2010-09-14 | 2015-11-24 | ヤマハ株式会社 | スピーカ装置 |
| CN107454511B (zh) | 2012-08-31 | 2024-04-05 | 杜比实验室特许公司 | 用于使声音从观看屏幕或显示表面反射的扬声器 |
| US10091583B2 (en) * | 2013-03-07 | 2018-10-02 | Apple Inc. | Room and program responsive loudspeaker system |
| US9729992B1 (en) * | 2013-03-14 | 2017-08-08 | Apple Inc. | Front loudspeaker directivity for surround sound systems |
| JP5897500B2 (ja) * | 2013-06-06 | 2016-03-30 | ヤマハ株式会社 | スピーカアレイ装置及びスピーカアレイ装置の出力制御方法 |
| CN103491397B (zh) * | 2013-09-25 | 2017-04-26 | 歌尔股份有限公司 | 一种实现自适应环绕声的方法和系统 |
| US9762999B1 (en) * | 2014-09-30 | 2017-09-12 | Apple Inc. | Modal based architecture for controlling the directivity of loudspeaker arrays |
| JP6543957B2 (ja) * | 2015-02-26 | 2019-07-17 | ヤマハ株式会社 | スピーカアレイ装置 |
| US10244317B2 (en) | 2015-09-22 | 2019-03-26 | Samsung Electronics Co., Ltd. | Beamforming array utilizing ring radiator loudspeakers and digital signal processing (DSP) optimization of a beamforming array |
| WO2017052140A1 (en) * | 2015-09-22 | 2017-03-30 | Samsung Electronics Co., Ltd. | A method of beamforming sound for driver units in a beamforming array and sound apparatus |
| JP2017069805A (ja) * | 2015-09-30 | 2017-04-06 | ヤマハ株式会社 | 車載音響装置 |
| US10405125B2 (en) * | 2016-09-30 | 2019-09-03 | Apple Inc. | Spatial audio rendering for beamforming loudspeaker array |
| US10531196B2 (en) * | 2017-06-02 | 2020-01-07 | Apple Inc. | Spatially ducking audio produced through a beamforming loudspeaker array |
| CN108551610A (zh) * | 2018-05-11 | 2018-09-18 | 四川斐讯信息技术有限公司 | 一种智能音箱及其音效产生方法 |
| JP7157885B2 (ja) | 2019-05-03 | 2022-10-20 | ドルビー ラボラトリーズ ライセンシング コーポレイション | 複数のタイプのレンダラーを用いたオーディオ・オブジェクトのレンダリング |
| JP7484346B2 (ja) | 2020-04-01 | 2024-05-16 | マツダ株式会社 | 運転姿勢設定用シート制御装置および該方法 |
| DE102022129642A1 (de) * | 2022-11-09 | 2024-05-16 | Holoplot Gmbh | Verfahren zur richtungsabhängigen Korrektur des Frequenzganges von Schallwellenfronten |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06205496A (ja) * | 1993-01-07 | 1994-07-22 | Pioneer Electron Corp | スピーカ装置 |
| JPH09259539A (ja) * | 1996-03-22 | 1997-10-03 | Pioneer Electron Corp | 情報記録媒体並びにその記録装置及び再生装置 |
| GB2373956A (en) | 2001-03-27 | 2002-10-02 | 1 Ltd | Method and apparatus to create a sound field |
| WO2005015956A1 (ja) * | 2003-08-08 | 2005-02-17 | Yamaha Corporation | ラインアレイスピーカーユニットを用いた音声再生方法及び装置 |
Family Cites Families (91)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1122851A (en) | 1964-05-26 | 1968-08-07 | Mini Of Technology | Electrical loudspeakers |
| DE1762735A1 (de) | 1968-08-14 | 1970-10-22 | Siemens Ag | Lautsprechergruppe mit reihenfoermig angeordneten Einzellautsprechern |
| US3772479A (en) | 1971-10-19 | 1973-11-13 | Motorola Inc | Gain modified multi-channel audio system |
| GB1522599A (en) | 1974-11-16 | 1978-08-23 | Dolby Laboratories Inc | Centre channel derivation for stereophonic cinema sound |
| US4118601A (en) | 1976-11-24 | 1978-10-03 | Audio Developments International | System and a method for equalizing an audio sound transducer system |
| DE2729051A1 (de) | 1977-06-28 | 1979-01-11 | Braun Ag | Lautsprechersystem |
| JPS5488048A (en) | 1977-12-26 | 1979-07-12 | Kokusai Denshin Denwa Co Ltd | Automatic transversal equalizer |
| JPS5768991A (en) | 1980-10-16 | 1982-04-27 | Pioneer Electronic Corp | Speaker system |
| US4503553A (en) | 1983-06-03 | 1985-03-05 | Dbx, Inc. | Loudspeaker system |
| US4984273A (en) | 1988-11-21 | 1991-01-08 | Bose Corporation | Enhancing bass |
| JP2528178B2 (ja) | 1989-03-14 | 1996-08-28 | パイオニア株式会社 | 指向性を有するスピ―カ装置 |
| US5109419A (en) | 1990-05-18 | 1992-04-28 | Lexicon, Inc. | Electroacoustic system |
| US5666424A (en) | 1990-06-08 | 1997-09-09 | Harman International Industries, Inc. | Six-axis surround sound processor with automatic balancing and calibration |
| JPH0541897A (ja) | 1991-08-07 | 1993-02-19 | Pioneer Electron Corp | スピーカ装置およびその指向性制御方法 |
| JP2770622B2 (ja) | 1991-09-26 | 1998-07-02 | 松下電器産業株式会社 | 指向性制御スピーカシステム |
| JPH05276591A (ja) | 1992-03-30 | 1993-10-22 | Matsushita Electric Ind Co Ltd | 指向性スピーカシステム |
| JPH0638289A (ja) | 1992-07-21 | 1994-02-10 | Matsushita Electric Ind Co Ltd | 指向性スピーカ装置 |
| JPH0662488A (ja) | 1992-08-11 | 1994-03-04 | Pioneer Electron Corp | スピーカ装置 |
| JPH06177688A (ja) | 1992-10-05 | 1994-06-24 | Mitsubishi Electric Corp | オーディオ信号処理装置 |
| JP3485597B2 (ja) | 1992-11-18 | 2004-01-13 | 三洋電機株式会社 | デジタル音声信号処理装置 |
| JPH06225379A (ja) | 1993-01-25 | 1994-08-12 | Matsushita Electric Ind Co Ltd | 指向性スピーカ装置 |
| JP2713080B2 (ja) | 1993-03-05 | 1998-02-16 | 松下電器産業株式会社 | 指向性スピーカ装置 |
| JPH06269096A (ja) | 1993-03-15 | 1994-09-22 | Olympus Optical Co Ltd | 音像制御装置 |
| DE69428939T2 (de) | 1993-06-22 | 2002-04-04 | Deutsche Thomson-Brandt Gmbh | Verfahren zur Erhaltung einer Mehrkanaldekodiermatrix |
| JPH07298387A (ja) | 1994-04-28 | 1995-11-10 | Canon Inc | ステレオ音声入力装置 |
| US6240189B1 (en) | 1994-06-08 | 2001-05-29 | Bose Corporation | Generating a common bass signal |
| NL9401860A (nl) | 1994-11-08 | 1996-06-03 | Duran Bv | Luidsprekersysteem met bestuurde richtinggevoeligheid. |
| WO1996016511A1 (fr) | 1994-11-23 | 1996-05-30 | Serge Saadoun | Dispositif d'adaptation automatique du niveau sonore moyen d'un recepteur de television |
| JP3830997B2 (ja) | 1995-10-24 | 2006-10-11 | 日本放送協会 | 奥行方向音響再生装置及び立体音響再生装置 |
| US6535610B1 (en) | 1996-02-07 | 2003-03-18 | Morgan Stanley & Co. Incorporated | Directional microphone utilizing spaced apart omni-directional microphones |
| JP3826423B2 (ja) | 1996-02-22 | 2006-09-27 | ソニー株式会社 | スピーカ装置 |
| CN1055193C (zh) * | 1996-08-26 | 2000-08-02 | 黄新民 | 串叠式扬声器 |
| JP3606348B2 (ja) | 1997-03-18 | 2005-01-05 | 松下電器産業株式会社 | 無線通信装置 |
| US6005948A (en) * | 1997-03-21 | 1999-12-21 | Sony Corporation | Audio channel mixing |
| US5930373A (en) | 1997-04-04 | 1999-07-27 | K.S. Waves Ltd. | Method and system for enhancing quality of sound signal |
| JPH1127604A (ja) | 1997-07-01 | 1999-01-29 | Sanyo Electric Co Ltd | 音声再生装置 |
| JPH1169474A (ja) | 1997-08-20 | 1999-03-09 | Kenwood Corp | 薄型テレビ用スピーカ装置 |
| CN1214690C (zh) * | 1997-09-05 | 2005-08-10 | 雷克西康公司 | 5-2-5矩阵编码器和解码器系统 |
| JPH11136788A (ja) | 1997-10-30 | 1999-05-21 | Matsushita Electric Ind Co Ltd | スピーカ装置 |
| US6519346B1 (en) | 1998-01-16 | 2003-02-11 | Sony Corporation | Speaker apparatus and electronic apparatus having a speaker apparatus enclosed therein |
| US6181796B1 (en) | 1998-02-13 | 2001-01-30 | National Semiconductor Corporation | Method and system which drives left, right, and subwoofer transducers with multichannel amplifier having reduced power supply requirements |
| JP2000184488A (ja) | 1998-12-18 | 2000-06-30 | Matsushita Electric Ind Co Ltd | スピーカ装置 |
| JP2001025084A (ja) | 1999-07-07 | 2001-01-26 | Matsushita Electric Ind Co Ltd | スピーカー装置 |
| CN100358393C (zh) | 1999-09-29 | 2007-12-26 | 1...有限公司 | 定向声音的方法和设备 |
| JP2001128279A (ja) | 1999-10-27 | 2001-05-11 | Matsushita Electric Ind Co Ltd | 指向性スピーカ装置 |
| US6498852B2 (en) | 1999-12-07 | 2002-12-24 | Anthony Grimani | Automatic LFE audio signal derivation system |
| JP4017802B2 (ja) | 2000-02-14 | 2007-12-05 | パイオニア株式会社 | 自動音場補正システム |
| JP2001346297A (ja) | 2000-06-01 | 2001-12-14 | Nippon Hoso Kyokai <Nhk> | 音像再生システム |
| JP2002345077A (ja) | 2001-02-07 | 2002-11-29 | Kansai Tlo Kk | 超音波スピーカによる立体音場形成システム |
| EP1402755A2 (en) | 2001-03-27 | 2004-03-31 | 1... Limited | Method and apparatus to create a sound field |
| JP2002330500A (ja) | 2001-04-27 | 2002-11-15 | Pioneer Electronic Corp | 自動音場補正装置及びそのためのコンピュータプログラム |
| EP1390702A2 (en) | 2001-05-09 | 2004-02-25 | TC Electronic A/S | Method of interacting with the acoustical modal structure of a room |
| JP2002369300A (ja) | 2001-06-12 | 2002-12-20 | Pioneer Electronic Corp | 音声信号再生装置および方法 |
| JP2003023689A (ja) | 2001-07-09 | 2003-01-24 | Sony Corp | 可変指向性超音波スピーカシステム |
| GB0124352D0 (en) * | 2001-10-11 | 2001-11-28 | 1 Ltd | Signal processing device for acoustic transducer array |
| US7130430B2 (en) | 2001-12-18 | 2006-10-31 | Milsap Jeffrey P | Phased array sound system |
| JP2003230071A (ja) | 2002-01-31 | 2003-08-15 | Toshiba Corp | テレビ視聴システム |
| GB0203895D0 (en) | 2002-02-19 | 2002-04-03 | 1 Ltd | Compact surround-sound system |
| JP4257079B2 (ja) | 2002-07-19 | 2009-04-22 | パイオニア株式会社 | 周波数特性調整装置および周波数特性調整方法 |
| US7822496B2 (en) | 2002-11-15 | 2010-10-26 | Sony Corporation | Audio signal processing method and apparatus |
| JP3951122B2 (ja) | 2002-11-18 | 2007-08-01 | ソニー株式会社 | 信号処理方法および信号処理装置 |
| JP3821228B2 (ja) | 2002-11-15 | 2006-09-13 | ソニー株式会社 | オーディオ信号の処理方法および処理装置 |
| JP4150903B2 (ja) | 2002-12-02 | 2008-09-17 | ソニー株式会社 | スピーカ装置 |
| JP3821229B2 (ja) | 2002-12-09 | 2006-09-13 | ソニー株式会社 | オーディオ信号の再生方法および再生装置 |
| JP3900278B2 (ja) | 2002-12-10 | 2007-04-04 | ソニー株式会社 | 投影スクリーン付きアレースピーカ装置 |
| GB0301093D0 (en) | 2003-01-17 | 2003-02-19 | 1 Ltd | Set-up method for array-type sound systems |
| GB0304126D0 (en) | 2003-02-24 | 2003-03-26 | 1 Ltd | Sound beam loudspeaker system |
| JP2004286680A (ja) * | 2003-03-24 | 2004-10-14 | Fuji Photo Film Co Ltd | 超音波送受信装置 |
| JP4214834B2 (ja) | 2003-05-09 | 2009-01-28 | ヤマハ株式会社 | アレースピーカーシステム |
| JP2004349795A (ja) | 2003-05-20 | 2004-12-09 | Nippon Telegr & Teleph Corp <Ntt> | 局所空間拡声方法、局所空間拡声装置、局所空間拡声プログラム及びこのプログラムを記録した記録媒体 |
| JP2004350173A (ja) | 2003-05-26 | 2004-12-09 | Nippon Hoso Kyokai <Nhk> | 音像再生装置および立体音像再生装置 |
| JP2005012765A (ja) | 2003-05-26 | 2005-01-13 | Yamaha Corp | スピーカ装置 |
| JP3876850B2 (ja) | 2003-06-02 | 2007-02-07 | ヤマハ株式会社 | アレースピーカーシステム |
| JP4007254B2 (ja) | 2003-06-02 | 2007-11-14 | ヤマハ株式会社 | アレースピーカーシステム |
| JP2005027020A (ja) | 2003-07-02 | 2005-01-27 | Fps:Kk | スピーカモジュール、及びsrスピーカシステム |
| JP2005080079A (ja) | 2003-09-02 | 2005-03-24 | Sony Corp | 音声再生装置及び音声再生方法 |
| JP4349123B2 (ja) | 2003-12-25 | 2009-10-21 | ヤマハ株式会社 | 音声出力装置 |
| JP2005197896A (ja) | 2004-01-05 | 2005-07-21 | Yamaha Corp | スピーカアレイ用のオーディオ信号供給装置 |
| JP4161906B2 (ja) | 2004-01-07 | 2008-10-08 | ヤマハ株式会社 | スピーカ装置 |
| JP4251077B2 (ja) | 2004-01-07 | 2009-04-08 | ヤマハ株式会社 | スピーカ装置 |
| JP3915804B2 (ja) | 2004-08-26 | 2007-05-16 | ヤマハ株式会社 | オーディオ再生装置 |
| JP4124182B2 (ja) | 2004-08-27 | 2008-07-23 | ヤマハ株式会社 | アレイスピーカ装置 |
| US7826626B2 (en) | 2004-09-07 | 2010-11-02 | Audyssey Laboratories, Inc. | Cross-over frequency selection and optimization of response around cross-over |
| US7720237B2 (en) | 2004-09-07 | 2010-05-18 | Audyssey Laboratories, Inc. | Phase equalization for multi-channel loudspeaker-room responses |
| EP1829423B1 (en) | 2004-12-14 | 2010-04-14 | Bang & Olufsen A/S | Reproduction of low frequency effects in sound reproduction systems |
| JP4779381B2 (ja) | 2005-02-25 | 2011-09-28 | ヤマハ株式会社 | アレースピーカ装置 |
| US7974417B2 (en) | 2005-04-13 | 2011-07-05 | Wontak Kim | Multi-channel bass management |
| JP2006304128A (ja) | 2005-04-25 | 2006-11-02 | Hosiden Corp | 指向性スピーカ装置 |
| JP4747664B2 (ja) | 2005-05-10 | 2011-08-17 | ヤマハ株式会社 | アレイスピーカ装置 |
| JP5082517B2 (ja) | 2007-03-12 | 2012-11-28 | ヤマハ株式会社 | スピーカアレイ装置および信号処理方法 |
| JP4655098B2 (ja) | 2008-03-05 | 2011-03-23 | ヤマハ株式会社 | 音声信号出力装置、音声信号出力方法およびプログラム |
-
2004
- 2004-08-26 JP JP2004246963A patent/JP3915804B2/ja not_active Expired - Fee Related
-
2005
- 2005-08-26 US US11/574,248 patent/US8391521B2/en active Active
- 2005-08-26 EP EP05774560A patent/EP1788846B1/en not_active Ceased
- 2005-08-26 CN CN2005800287301A patent/CN101010986B/zh not_active Expired - Fee Related
- 2005-08-26 WO PCT/JP2005/015562 patent/WO2006022380A1/ja not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06205496A (ja) * | 1993-01-07 | 1994-07-22 | Pioneer Electron Corp | スピーカ装置 |
| US5953432A (en) | 1993-01-07 | 1999-09-14 | Pioneer Electronic Corporation | Line source speaker system |
| JPH09259539A (ja) * | 1996-03-22 | 1997-10-03 | Pioneer Electron Corp | 情報記録媒体並びにその記録装置及び再生装置 |
| GB2373956A (en) | 2001-03-27 | 2002-10-02 | 1 Ltd | Method and apparatus to create a sound field |
| WO2005015956A1 (ja) * | 2003-08-08 | 2005-02-17 | Yamaha Corporation | ラインアレイスピーカーユニットを用いた音声再生方法及び装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1788846A4 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7022796B2 (en) * | 2001-01-12 | 2006-04-04 | Fina Technology, Inc. | Production of ultra high melt flow polypropylene resins |
Also Published As
| Publication number | Publication date |
|---|---|
| US8391521B2 (en) | 2013-03-05 |
| JP3915804B2 (ja) | 2007-05-16 |
| EP1788846A1 (en) | 2007-05-23 |
| EP1788846A4 (en) | 2009-10-28 |
| JP2006067218A (ja) | 2006-03-09 |
| EP1788846B1 (en) | 2011-11-23 |
| US20070217621A1 (en) | 2007-09-20 |
| CN101010986A (zh) | 2007-08-01 |
| CN101010986B (zh) | 2010-11-17 |
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