WO2016206815A1 - Verfahren zur schallwiedergabe in reflexionsumgebungen, insbesondere in hörräumen - Google Patents
Verfahren zur schallwiedergabe in reflexionsumgebungen, insbesondere in hörräumen Download PDFInfo
- Publication number
- WO2016206815A1 WO2016206815A1 PCT/EP2016/001088 EP2016001088W WO2016206815A1 WO 2016206815 A1 WO2016206815 A1 WO 2016206815A1 EP 2016001088 W EP2016001088 W EP 2016001088W WO 2016206815 A1 WO2016206815 A1 WO 2016206815A1
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- WIPO (PCT)
- Prior art keywords
- signals
- room
- listening
- sound
- loudspeaker arrangement
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
- H04S7/305—Electronic adaptation of stereophonic audio signals to reverberation of the listening space
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R27/00—Public address systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2227/00—Details of public address [PA] systems covered by H04R27/00 but not provided for in any of its subgroups
- H04R2227/007—Electronic adaptation of audio signals to reverberation of the listening space for PA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/01—Enhancing the perception of the sound image or of the spatial distribution using head related transfer functions [HRTF's] or equivalents thereof, e.g. interaural time difference [ITD] or interaural level difference [ILD]
Definitions
- the invention relates to a method for sound reproduction in
- Reflection environments especially in listening rooms.
- a variety of methods for sound reproduction in listening rooms is known, in particular the playback via a speaker (mono), two speakers (stereo) or four or more speakers, with two front and two rear speakers with center speaker and optional Subwoofer have established themselves in the market for surround playback (so-called 5.1 surround playback configuration).
- 5.1 surround playback configuration With the goal of intensifying the spatial sound experience, especially in the home audio sector, more and more loudspeakers are being offered in recent years with additional loudspeakers placed in the listening room and aimed at the listening position. Numerous additional loudspeakers are used in technically advanced cinemas.
- Sound events failed to be problematic in that even slightly impulsive sound events from placed in these directions loudspeakers direct sound and thus in the context of diffuse sound are perceived as disturbing.
- a possible and frequent consequence is an overall only weak spatial effect on many surround recordings and transmissions, in other cases the spatial effect is increased with ultimately unnatural psychoacoustic means or exaggerated widening of the sound image or just the use of direct sound effects for reinforcement of the
- Speakers are directed less directly to the listener and more indirectly, or by using additional speakers for that purpose. Although such measures have the desired effect of a stronger spatial effect, a spatiality achieved in this way is also perceived as very unspecific, since the room sound information contained in it correspond to the usually small dimensions of the listening rooms (eg living room) and, if in stronger Measurements used that actually desired perception of the
- Speaker belongs.
- Other loudspeaker types used occasionally are bipolar and dipole loudspeakers, in which the avoidance of the emission of direct sound in the direction of the listener is more important than the excitation of diffuse sound in the listening room.
- Audio material and in particular the relationship between direct and
- Listening impressions are those of the state of the art known and reproduced above sound reproduction configurations thus not able to achieve good or at least satisfactory results.
- WO2012 / 033950 A1 discloses a method for reproducing multichannel audio in which transmitted or recorded "dry" audio tracks or “stars" are encoded with time-variable metadata that control a desired degree of diffuseness in the reproduction of the audio signals. Audio tracks are compressed and transmitted in conjunction with synchronized metadata that represents diffusivity, and preferably also mix and delay parameters.
- the separation of audio issues from diffuse metadata allows a retrospective adaptation of the spatial effect (only in the context of the transmission of background audio) and also facilitates the personalization of the listener.
- the method uses essentially the known
- Audio files comprising: a) encoding signals representative of at least one sound propagating in three-dimensional space coming from a source located at a first distance from a reference point; a representation of the sound through in a base of spherical B) and applying to these components a compensation of a near-field effect by filtering, which is a function of a second distance, which is essentially a distance when the sound is reproduced by a reproducing device defined between a playback point and an audio perception point.
- a spatial compensation by Realized audio sources and a specification of the three-dimensional audio presentation of these sources It concerns both a coding of virtual audio sources and an acoustic coding of a natural one
- Audio field in a sound recording by one or more three-dimensional networks of microphones is described.
- WO2013 / 111034 A2 discloses in particular
- An audio playback system that includes a first speaker assembly that provides audio signals to a listening position, wherein the audio signals
- An audio material supplier has an upmixer for up-mixing a channel signal of a multichannel audio signal to a first audio signal and a second audio signal corresponding to more diffused sound than the first audio signal. Upmixing is the output of a correlation measure for two channels of a multi-channel signal. The correlation measure is generated by means of a correlation estimator (estimation).
- the method uses a modified approach compared to the use of omnidirectional or bipolar or Dipollaut Kirern by means of indirect-oriented speakers are used exclusively in addition and by their use more diffuse audio material is used.
- the stimulated diffused sound of the listening room does not match the reproduced audio in a plurality of cases, and especially in the reproduction of music, and therefore tends to balance the ratio between direct and room sound suffers.
- the object of the present invention is therefore to substantially reduce or eliminate the above-mentioned disadvantage.
- the present invention is based on the object of providing a method for reproducing sound in reflection environments, in particular in listening rooms, which is perceived as emotionally involved.
- Loudspeakers of the first speaker arrangement enclosed area to achieve a uniformly good spatial effect.
- the audio signals are usually from natural sound sources in the field of live acoustics.
- the audio signals are usually from natural sound sources in the field of live acoustics.
- Multifunktionshallen (as an acoustic source acts in such cases, for example, an orchestra), the acoustics is perceived as problematic or unsatisfactory. It would be desirable if the room acoustics in such halls would correspond to those of a hall with good acoustics. In situations with amplification, for example in the performance of musicals, the sound is often too impractical, in particular due to the use of highly directional line array loudspeakers
- AES Acoustic Enhancement Systems
- MCR MCR
- VRAS Reverberation Enhancement Systems
- synthetic production of Reverberant systems direct their loudspeakers essentially directionally to the listeners (eg Vivace). While the measurable purpose of extending a reverberation time is reliably achieved, the surround sound produced by such equipment is perceived as too smooth and often too loud.
- Such systems are increasingly used as a supplement to public address systems in order to achieve an enveloping spatially perceived sound effect. Again, the space is often perceived as unnatural and smooth.
- Audio signals with respect to a listening position radiated substantially directionally, via a second speaker arrangement are the
- Audio signals have independent origin. Be in live situations via the second loudspeaker arrangement
- the space sound information of the space sound signals have an independent of the live signals corresponding to the audio signals origin.
- the room sound information of the room sound signals having an independent of the audio signals is understood in the sense according to the invention that the spatial information (ie reflections and diffuse sound corresponding signal components) of the
- Space sound signals are not taken from the audio signals or not calculated from them, but that instead, for example, by way of a convolution with impulse responses, just this
- Spaceborne sound information is supplied to the space sound signals or, as another example, contained in correspondingly configured HOA sound field beams used as space sound signals. Radiated from suitable loudspeakers in the listening room, room sound information contained in the room sound can cause the listener to envelop the enveloping perception of spatiality and thereby preferably the perception of a specific spatiality, that is to say the spatiality of a specific room.
- the method according to the invention makes use of the fact that human perception is perceived as appropriate
- a listening position is one that corresponds to the position of a so-called “good listening point” (rather in the middle of the room) in the center of the loudspeakers of a 5.1 surround system in reproduction situations of the classical listening position and in live situations.
- Directional radiation in the sense of the invention is understood to mean one in which the predominant sound component with respect to the listening position is radiated directly onto one or substantially directly onto one (with typical deviations from direct alignment of up to 30).
- the first loudspeaker arrangement can be suitable in the sense according to the invention for the reproduction of so-called surround audio mixes generally without the use of additional loudspeakers and is usually also used for this purpose. At least be at the first
- Loudspeaker arrangement one speaker front and two rear or rear / side speakers used while the maximum number of speakers used for the first speaker assembly is unlimited.
- a multi-speaker arrangement known to those skilled in the art is the 22.2 configuration of the NHK.
- additional loudspeakers are increasingly being used on the side walls and on the ceiling, in particular for the reproduction of effects, in which the intended effect of locating these effects by the listener in the sense of localization is sought.
- Loudspeaker arrangements in which the described locating and localization is partly realized by reflection of loudspeaker signals on the ceiling or on walls are to be regarded as the first loudspeaker arrangement in the sense of the invention.
- the audio signals are generally sound signals transmitted or reproduced from a recording in the form of suitable and / or specific arrangements or mixtures of original microphone recordings or artificial recordings for reproduction via the described first loudspeaker arrangement generated signals.
- the room sound signals are preferably present in a form or are generated in a manner which makes it possible to adapt particular parameters relating to the spatial effect to the respective sound room acoustics.
- the spatial sound components contained in the audio signals can not be separated from the direct sound signals likewise contained in the audio signals, and they can not be changed in a manner such as is necessary for adaptations according to the invention to the Conditions of the listening room would be required.
- Audio signals via the second loudspeaker arrangement is a process which takes place independently of the radiation of the space sound signals and is also controlled independently thereof; he essentially serves the
- the audio signals allow, via a sufficient level of diffuse sound, the perception of being enveloped, which is necessarily to be specified by the information contained in the room sound signals
- Characteristics of Being enveloped eg the spatial impression of a
- the room sound signals instead of a perception of the room acoustics room acoustics allow the perception of the desired room acoustics, which in turn without the
- the room sound signals are usually, but not
- third space is, for example, and in particular a desired by the aesthetics concert hall - see above
- the third space can correspond to a real role model or, for example, with the help of suitable simulation software, designed as desired be) generated with the audio signals, on which occasion, the aforementioned adaptations to the conditions of the respective listening room can be carried out.
- a reproduction via an apparatus according to WO2012 / 033950 A1 is based on a different, namely a substantially "drier" mixture than a reproduction via the hitherto customary surround reproduction apparatuses, while the method according to the invention is available and for reproduction via the usual surround sound Reproduction apparatus provided blends can serve and also operated, so here in a familiar to the expert
- compatibility means that creating and transmitting separately is more reverberant
- Loudspeaker array emitted signals which relates to audio signals as well as the space sound signals, is their actual diffusivity, i. H. their true distribution in the listening room, which differs fundamentally from the only shown and only simulated diffusivity of the room sound signals as part of audio signals, such as the first
- Loudspeaker arrangement radiated be perceived by the listener.
- diffusivity is understood to be the latter indirect form of spatial effect, as follows from the following quote: "a diffuse signal or a perceptually diffuse signal in the context of the invention to a (usually multichannel) audio signal that has been processed electronically or digitally to create the effect of a diffuse sound when reproduced to a listener. "
- this first variant of the method according to the invention is a pure audio playback in a listening room, wherein at a second, live signals in the listening room variant of the
- Space sound signals are radiated via the second loudspeaker arrangement in the direction of the listening position substantially indirect, to which also apply the descriptions made in the context of the first variant also substantially.
- live signals are understood to mean those which originate from the listening room, for example and in particular in an opera house or a hall or other room, during a live performance.
- the listening room is also the room in which the original sound events take place live.
- the second variant on the one hand, it may be provided that only one loudspeaker arrangement and then, in the sense of the invention, the second loudspeaker arrangement of the first variant is used.
- the first speaker arrangement the live signals in the direction of the listening position in essentially directional radiation, which is then sonication, such as musical performances, acts.
- this second variant is also suitable for use in smaller rooms and that also here a combination with public address purposes, such as in conference rooms, is possible.
- an apparatus installed for the purpose of the first variant, supplemented with microphones, can also be used for the purposes of the second variant.
- Variants of the method according to the invention for sound reproduction in listening rooms it is surprisingly possible for the first time to transfer a psychoacoustic and auditory physiological sound experience comparable to the listening experience in natural rooms room experience of a third room in a listening room, in addition to the substantially directional radiation of audio or Live signals of the listening room itself with room sound signals of a desired room, for example, and in particular a concert hall, in combination with the audio or live signals, is acted upon in the sense of a realized on the listening position of the indirect radiation.
- the conventional over the first time to significantly amplify the room sound of the respective listening room (if necessary to produce a sufficient diffuse sound level) and to mask in the perception of the listener, the conventional, over the first
- Loudspeaker arrangement radiated audio or the live signal are enriched in aesthetic terms with the desired third-room acoustics, the just as in the listening room again diffused diffuse sound through the special preparation and emission of the above-mentioned
- the preferred listening area is on the entire area between the
- Loudspeakers of the first loudspeaker arrangement extended (solution of the so-called sweet-spot problem), which also surprisingly, even without a subwoofer surprisingly quasi results of itself an outstanding bass reproduction.
- Sound level of both said signals compared to the sound level of the audio signals of the first speaker assembly and / or the live signals are set such that on the one audiophysiological one
- the third-room surround sound signals are felt to be suitable in their effect.
- the third-room surround sound signals are felt to be suitable in their effect.
- the enveloping spatial sound representation of a large concert hall in a small living room requires a high sound level of the audio signals in the second loudspeaker arrangement. Also with a much lower level of the audio signals in terms of the level of the audio signals
- Third-room room sound signals can adjust the desired and described effect on the listener, as is apparent from the practice of
- the loudspeaker arrangement In a live situation in an acoustically problematic concert hall, the loudspeaker arrangement also radiates a considerable portion of its sound to the ceilings and walls of the concert hall, so that a much smaller amount of the live signals, depending on the concert hall corresponding audio signals in the second loudspeaker arrangement for diffuse sound generation as required in the home audio living room or sufficient diffuse sound is already present in the hall, so that then only and exclusively room sound signals on the second
- Space sound signals are around third-room impulse responses that can make professionals with commercially available equipment even in the recording room or in other appropriate halls or with commercial simulation software corresponding to real rooms or generated by virtual rooms, in some cases, in an appropriate manner and Quality from the desired rooms and environments or concert halls and opera houses in the world are available (for example, offered by the company Audioease).
- Audio recording and transmission will be different and / or more
- Beams with regard to direction and directional characteristic variable sections can be selected, so for example, space sound signals largely without direct sound component.
- the audio signals can also be taken from this sound field, which enables further, even more differentiated modes of operation in the context of the method according to the invention.
- “Sound field” in the sense of the method according to the invention are all acoustic information (with time intervals / delays
- the sound field is thus the section of the sound field generated by live and / or loudspeaker signals in the room, which is related to this point.
- Essential parameters of the acoustic information are their respective levels (in the case of diffuse sound, the Hall curve representing the time-dependent level curve) and the direction from which they are perceived (with accuracy decreasing from direct to diffuse sound). In many cases, the perception of the sound field takes place as a whole, in that, together with the direct sound, an associated spatiality (and not, for example, individual echoes) is perceived.
- Speaker arrangement example and in particular at least two speakers for side sound signals and / or a loudspeaker for coming from above early reflection signals, so in the direction
- Listening room walls and / or listening room ceiling early reflection signals are emitted that on the listening room walls (front-side-in about ear height or higher in relation to the listening position) and / or on the Hörraumdecke (front-top-center) reflected reflected early reflection signals substantially in the direction of the desired listening area.
- the second loudspeaker arrangement is configured such that the
- Audio signals and / or the live signals and the room sound signals are emitted via separate speaker chassis.
- Speaker arrangement at least and preferably comprises the following speakers: a speaker with respect to the listening position of the indirect radiation from the front-left-top, a speaker to the listening position with respect to the indirect radiation from the front-right-top, a
- a perception of four areas above the head of the listener with the subdivisions left / right and front / back is to be regarded as advantageous from the point of view of the method according to the invention, and it is also advantageous if it is to multiply as many as possible in the indirect radiation Reflections, z. B. on the ceiling and on the walls, comes.
- Frame of the second loudspeaker arrangement is rather not advantageous in connection with the method according to the invention. It comes here to superposition of diffusities, which can not be differentiated audiophysiologically, so that although a diffuse sound with reverberation, but not other room sound characteristics are perceptible.
- diffusities which can not be differentiated audiophysiologically, so that although a diffuse sound with reverberation, but not other room sound characteristics are perceptible.
- the properties of the reverberation so-called “smooth" described above
- Reverberation extension systems or Acoustic Enhancement Systems can be explained by the use of a (too) large number of loudspeakers.
- Measuring positions or measurement orientations in the third room for example, in relation to a good listening position in the concert hall or with respect to a realistic listening position in a movie scene) in principle (in particular with respect to front-back) the areas of radiation of the attributed
- Convolution products on the second speaker assembly in the listening room correspond.
- the room sound signals set up for four loudspeakers are combined on the left and on the right side and emitted via only two loudspeakers become.
- the loudspeakers of the second loudspeaker arrangement are delayed in time or earlier in comparison to the audio signals of the first loudspeaker arrangement or the live signals in order to provide a further possibility of acoustic shaping.
- Loudspeaker arrangement compared to the audio signals of the first loudspeaker arrangement or the live signals delayed in time or be controlled earlier.
- the setting of such a delay is part of an artistic so-called upmix, in which the room acoustics represented by the room sound signals in the listening room is adapted by means of a fine adjustment to the new environment.
- the audio signals are usually in channel-based form.
- the audio signals are usually in channel-based form.
- the convolution an adaptation of the space sound signals to the respective acoustic situation of the Listening room made.
- the signal path in front of belonging to the inventive apparatus concerning, just not in channel-based audio form or are transmitted, but each in the apparatus are preferably generated by convolution, for the same audio signals, for different listening rooms by adapted Changes of suitable convolution parameters (eg reverberation length, size of the room, spatial width, delays) respectively generated space sound signals generated and adapted mixtures for the control of the second loudspeaker arrangement are made.
- audio signals and impulse responses are required for the reproduction of audio according to a preferred form of the method according to the invention.
- audio signals are, inter alia, but also preferably suitable for surround mixes already provided for reproduction via the first loudspeaker arrangement (even without the use of a second loudspeaker arrangement).
- the impulse responses it is advantageous if they are exchanged and distributed in a form that makes their immediate use (ie without adjustment of parameters) possible, if the respective
- the room acoustics of the listening room will be
- Einmeßvorgang which is based on known, in particular for higher quality surround reproduction equipment available Einmeßvor réelle and is performed before the startup of the apparatus.
- Room dimensions and the placement of the speakers are by means of a Meßmikrophons and sound emitted through the speakers sounds and signals not only suitable levels, delays and
- Parameters in particular the reverberation time.
- the convolution and mixing parameters are adapted according to the respective deviations. These parameters can also be used to achieve the
- Sound signals are no direct sound components included, especially since these, if not carefully adapted to interfere with the audio signals in a disturbing way.
- Loudspeaker arrangement with respect to the listening position of the rear speaker of the second speaker assembly by these speakers sooner or later
- the radiation of at least parts of the audio signals via the second loudspeaker arrangement in both a delayed and an instantaneous manner with respect to at least parts of the audio signals radiated via the first loudspeaker arrangement.
- Speakers of the second speaker assembly usually in pairs or groups (viewed transversely to the listening position) are controlled by associated pairs or groups of the first speaker assembly.
- the audio signals of pairs and / or groups of loudspeakers of the first loudspeaker arrangement are usually instantaneously or with a slight delay over, as a rule, the nearest pair or the closest group of
- Speakers of the second speaker arrangement can be played.
- the masking of the auditory space-induced sound information significantly improve in the listener's perception when using a pair or through a group of speakers the second
- Loudspeaker arrangement emitted audio signals in addition to be reproduced via further pairs or groups of speakers of the second loudspeaker arrangement; usually with an additional small
- Delay that is in a positive relation to the distance between the respective pairs and / or groups of loudspeakers, as well as with a slightly lower level with increasing distance.
- a computer program which is set up for carrying out the method according to the invention comprises a data carrier containing
- Computer program product a device that is set up for
- Audio signals have independent origin, for the auditory physiological evocation of the perception of the room sound signals
- FIG. 1 - shows a perspective and sketchy representation of a possible embodiment of the method according to the invention.
- FIG. 1 shows a sketch of a possible loudspeaker configuration within a listening room H in the form of a sketch and perspectively, the listening position itself being marked X and the listener looking at a wall W1.
- audio signals for example fed by hi-fi components, are radiated essentially directionally in the direction of the listening position X from a first loudspeaker arrangement consisting of the loudspeakers SLV1, SCV1, SRV1, SLH1 and SRH1 Configuration of a classic 5.1 surround speaker configuration is equivalent to no subwoofer.
- the audio signals are thus transmitted substantially directionally to the listener at the listening position X.
- These correspond to the conventional recording technique stemmenden, d. H. channel and non-sound field based sound information.
- the audio signals and room sound signals independent of the listening room H become substantially indirect with respect to the listening position X via a second loudspeaker arrangement consisting of the loudspeakers SLV02, SRV02, SLH02 and SRH02 in the direction of the listening room ceiling D, the space sound signals and the audio signals exerting complementary effects on the perception of space.
- the over second loudspeaker arrangement radiated audio signals increase the diffusivity in the listening room to an extent that allows the inventive perception of enveloping space only, and wherein the radiated via the second loudspeaker arrangement space sound signals not only the Hörraumindu formulateen spatial information of the diffused sound of the listening room H in the listener perception mask, but above all ensure the perception of a space corresponding to the room sound information of the space sound signals in a enveloping manner.
- a third speaker assembly is installed in the listening room H, which consists of the speakers SL3 and SR3. Via the loudspeakers SL3 and SR3, early reflection signals (specially selected and adjusted room sound signals) are radiated such that they are reflected at the listening room walls W2 and W3 substantially in the direction of the listening position X.
- early reflection signals specially selected and adjusted room sound signals
- the listening room H independent room sound signals or room sound signals independent of the listening room and the live sound Signals corresponding to the audio signals via the second loudspeaker arrangement in the direction of the listening position X emitted substantially indirect
- audio signals have complementary effects on spatial perception.
- the speakers SLV1, SCV1, SRV1, SLH1 and SRH1 are usually not operated actively, but in some circumstances they can be operated without the use of rear speakers, in particular for PA applications, for example in musical performances ,
- the speakers SLV02, SRV02, SLH02 and SRH02 are controlled in any case. If required, the loudspeakers of the third loudspeaker arrangement, namely SL3 and SR3, are also activated.
- Andreas Rotter Perceptibility of Acoustic Differences between Tweeters of Different Active Principles, MATU Berlin 2010, page 22 ff.
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Abstract
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP2018518775A JP2018523435A (ja) | 2015-06-24 | 2016-06-24 | 反射環境、特にリスニングルームにおける音響再生のための方法 |
KR1020187002287A KR20180021384A (ko) | 2015-06-24 | 2016-06-24 | 반사 환경, 특히 청취실에서 사운드를 재생하는 방법 |
US15/738,408 US20180262859A1 (en) | 2015-06-24 | 2016-06-24 | Method for sound reproduction in reflection environments, in particular in listening rooms |
EP16736793.7A EP3314915A1 (de) | 2015-06-24 | 2016-06-24 | Verfahren zur schallwiedergabe in reflexionsumgebungen, insbesondere in hörräumen |
CN201680046308.7A CN107925839A (zh) | 2015-06-24 | 2016-06-24 | 用于在反射环境中、尤其在听音室中播放声音的方法 |
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DE102015008000.8A DE102015008000A1 (de) | 2015-06-24 | 2015-06-24 | Verfahren zur Schallwiedergabe in Reflexionsumgebungen, insbesondere in Hörräumen |
DE102015008000.8 | 2015-06-24 |
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WO2016206815A1 true WO2016206815A1 (de) | 2016-12-29 |
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PCT/EP2016/001088 WO2016206815A1 (de) | 2015-06-24 | 2016-06-24 | Verfahren zur schallwiedergabe in reflexionsumgebungen, insbesondere in hörräumen |
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US (1) | US20180262859A1 (de) |
EP (1) | EP3314915A1 (de) |
JP (1) | JP2018523435A (de) |
KR (1) | KR20180021384A (de) |
CN (1) | CN107925839A (de) |
DE (1) | DE102015008000A1 (de) |
WO (1) | WO2016206815A1 (de) |
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US10262674B1 (en) * | 2018-06-26 | 2019-04-16 | Capital One Services, Llc | Doppler microphone processing for conference calls |
CN109151702B (zh) * | 2018-09-21 | 2021-10-08 | 歌尔科技有限公司 | 音频设备的音效调节方法、音频设备及可读存储介质 |
CN111711914A (zh) * | 2020-06-15 | 2020-09-25 | 杭州艾力特数字科技有限公司 | 一种具有混响时间测量功能的扩声系统 |
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KR102003191B1 (ko) * | 2011-07-01 | 2019-07-24 | 돌비 레버러토리즈 라이쎈싱 코오포레이션 | 적응형 오디오 신호 생성, 코딩 및 렌더링을 위한 시스템 및 방법 |
WO2013068402A1 (en) * | 2011-11-10 | 2013-05-16 | Sonicemotion Ag | Method for practical implementations of sound field reproduction based on surface integrals in three dimensions |
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2015
- 2015-06-24 DE DE102015008000.8A patent/DE102015008000A1/de not_active Ceased
-
2016
- 2016-06-24 EP EP16736793.7A patent/EP3314915A1/de not_active Withdrawn
- 2016-06-24 US US15/738,408 patent/US20180262859A1/en not_active Abandoned
- 2016-06-24 CN CN201680046308.7A patent/CN107925839A/zh active Pending
- 2016-06-24 WO PCT/EP2016/001088 patent/WO2016206815A1/de active Application Filing
- 2016-06-24 JP JP2018518775A patent/JP2018523435A/ja active Pending
- 2016-06-24 KR KR1020187002287A patent/KR20180021384A/ko unknown
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US20050180579A1 (en) * | 2004-02-12 | 2005-08-18 | Frank Baumgarte | Late reverberation-based synthesis of auditory scenes |
DE102011119642A1 (de) * | 2011-11-28 | 2013-05-29 | Shure Europe GmbH | Vorrichtung und Verfahren zur Raumklangsimulation |
WO2013111034A2 (en) * | 2012-01-23 | 2013-08-01 | Koninklijke Philips N.V. | Audio rendering system and method therefor |
Also Published As
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JP2018523435A (ja) | 2018-08-16 |
KR20180021384A (ko) | 2018-03-02 |
EP3314915A1 (de) | 2018-05-02 |
CN107925839A (zh) | 2018-04-17 |
US20180262859A1 (en) | 2018-09-13 |
DE102015008000A1 (de) | 2016-12-29 |
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