EP3603107A1 - Verfahren zur ausgabe eines audiosignals in einen innenraum über eine einen linken und einen rechten ausgabekanal umfassende ausgabeeinrichtung - Google Patents
Verfahren zur ausgabe eines audiosignals in einen innenraum über eine einen linken und einen rechten ausgabekanal umfassende ausgabeeinrichtungInfo
- Publication number
- EP3603107A1 EP3603107A1 EP18711538.1A EP18711538A EP3603107A1 EP 3603107 A1 EP3603107 A1 EP 3603107A1 EP 18711538 A EP18711538 A EP 18711538A EP 3603107 A1 EP3603107 A1 EP 3603107A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- audio signal
- output
- acoustic
- acoustic output
- output channel
- 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.)
- Granted
Links
- 230000005236 sound signal Effects 0.000 title claims abstract description 168
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000001419 dependent effect Effects 0.000 claims abstract description 13
- 230000008447 perception Effects 0.000 claims abstract 5
- 238000000926 separation method Methods 0.000 claims description 8
- 230000006870 function Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
- H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
- H04S1/007—Two-channel systems in which the audio signals are in digital form
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/05—Generation or adaptation of centre channel in multi-channel audio systems
Definitions
- the invention relates to a method for outputting an audio signal into an interior forming a part of a passenger compartment of a motor vehicle via an acoustic output device comprising a left and a right acoustic output channel.
- At least one driver side d. H. typically a left, output channel
- passenger side d. H. typically a right, output channel
- a center output channel located centrally between the driver and passenger side output channels.
- the center output channel serves to ensure the best possible stereo width even outside the vehicle longitudinal center axis. If no center output channel is present, the listener-perceived center portion of an audio signal "wanders" to the nearest driver or passenger-side output channel.
- the invention is thus based on the object, a method for outputting an audio signal in a part of a passenger compartment of a motor vehicle forming interior via a left and a right acoustic output channel comprehensive acoustic output device, which allows an output of an audio signal with the best possible stereo width without the use of a center output channel.
- the method described herein is for outputting an audio signal into an interior forming part of a passenger compartment of a motor vehicle via a left and a right acoustic output channel - a respective output channel is typically formed by a speaker - comprehensive acoustic output device ("output device")
- the two output channels of the output device are typically arranged in a passenger compartment of a motor vehicle, so that the signals which can be output via these signals can be output to the passenger compartment left output channel and no center output channel to output comprehensive output device with the widest possible stereo width, so a virtual center output channel can be generated.
- an audio audio signal (“audio signal”) is provided
- the audio signal is typically a stereo signal
- the audio signal can be provided in various ways, for example via a sound carrier, ie an audio signal CD, a data carrier, ie, for example, a hard disk memory, or a data network, ie, the Internet, for example,
- the audio signal may be, for example, a piece of music, a piece of text, etc.
- the audio signal provided is divided into a plurality of audio signal components ("audio signal component"), in particular as described below, in particular three perception-direction-dependent audio signals
- audio signal component a plurality of audio signal components
- audio signal component three perception-direction-dependent audio signals
- Examination devices or algorithms are examined with regard to individual audio signal components, which in the case of actual output of the audio signal via a dispensing channel comprising only two output channels, ie a left and a right dispensing channel, one of a positioned in a defined position relative to the output of the respective audio signal output device Handset perceived output direction or position correspond or would correspond.
- a corresponding defined position of a listener relative to the audio signal outputting device may be, for. B. around the top of the stereo triangle, in which the listener forms an equilateral triangle with the output channels act.
- a corresponding audio signal portion may include a center audio signal portion which would correspond to a listener centrally perceived output direction upon actual output of the audio signal via a two output channel output device, a left audio signal component which is one of a listener upon actual output of the audio signal an output device comprising two output channels (more) to the left (as compared to a center audio signal component) perceived output direction and position, and a right audio signal component corresponding to one output by a listener upon actual output of the audio signal via a two output channel output device (more ) to the right (compared to a center audio signal component) would correspond to the perceived output direction or position.
- the audio signal typically comprises a right audio signal component in (exactly) three audio signal components, namely a left audio signal component which contains all or only portions of the audio signal which are perceived to the left of the center of the output or which are to the left of the center of the output which contains all or only portions of the audio signal which are perceived to the right of the center of the output or which are located to the right of the center of the output, and a center audio signal component, which contains all or only portions of the audio signal which are perceived in the center of the output or which are located in the center of the output.
- audio signal components are mixed on the right and / or the left output channel of an output device comprising a right and a left output channel.
- Each audio signal component obtained from the division of the audio signal is accordingly mixed onto a specific output channel of an output device comprising two output channels.
- each audio signal component is assigned to one of the two output channels of the output device, via which the respective audio signal component is subsequently output. For the center audio signal component, it applies that this can be mixed proportionally divided on both output channels.
- the output of the audio signal components takes place via the two output channels of the output device.
- an earphone positioned on the driver's or passenger's side - the output takes place in an interior forming part of a passenger compartment of a motor vehicle - enables the best possible stereo width without the need for a (separate) center output channel.
- the division of the provided audio signal into respective audio signal components can be carried out by means of a source separation device.
- a corresponding source separation device can, for. B. implemented by a source separation algorithm.
- a suitable method for source separation or a suitable source separation algorithm is z. As described in the German patent DE 10 2012 025 016 B3, the disclosure content of which is expressly incorporated by reference.
- the provided audio signal is typically divided into a left audio signal component, a right audio signal component, and a center audio signal component.
- the left audio signal component is typically output via the left output channel of the output device
- the right one Audio signal component is typically output via the right output channel of the output device
- the center audio signal component is typically output via the left and / or the right output channel of the output device.
- the center audio signal component can therefore be output via both the right and left output channels of the output device.
- the center audio signal component may be distributed proportionately divided over both output channels.
- a first portion of the center audio signal component determined by a weighting factor may be output via the right-hand output channel of the output device
- a second component of the center audio signal component determined by a weighting factor may be output via the left-hand output channel of the output device.
- a first portion of the center audio signal portion may be outputted mixed with the right audio signal portion via the right output channel
- a second portion of the center audio signal portion may be mixed with the left audio signal portion and output via the left output channel of the output device.
- the weighting of the portions of the center audio signal component can be equal or uneven; Thus, a first portion of the center audio signal portion may be greater than a second portion of the center audio signal portion, or vice versa.
- a static or dynamic (variable) weighting factor can be used.
- the weighting factor z. B. depending on definable or defined boundary conditions can be varied.
- the weighting factor can be varied as a function of certain constraints on occupancy of the passenger compartment with vehicle occupants.
- a weighting of the center audio signal component can accordingly ensue depending on the distribution of respective vehicle occupants located within the passenger compartment. If the majority of the vehicle occupants are on the driver's side, the center audio signal component can be z. B. are issued with a higher weighting on the respective driver-side output channel, the majority of the vehicle occupants passenger side, the center audio signal component z. B. with a higher weighting via the respective passenger-side output channel output.
- the invention relates to a device for outputting an audio signal into an interior forming part of a passenger compartment of a motor vehicle via an acoustic output device comprising a left and a right acoustic output channel.
- the device is characterized by a distribution device implemented in hardware and / or software, which is set up for splitting a provided audio signal into a plurality of audio signal components, a hardware and / or software implemented mixing device, which mixes each audio signal component to a right or a left output channel output means comprising right and left output channels, and output means comprising two output channels arranged to output the audio signal components via the right and / or left output channels.
- the device is set up to carry out the method.
- the invention also relates to a motor vehicle, which comprises a corresponding device. Consequently, all embodiments in connection with the method described herein apply analogously to the motor vehicle.
- FIGURE shows a schematic diagram of a device according to an embodiment.
- the single FIGURE shows a schematic diagram of a device 1 according to an embodiment.
- the device 1 is set up to output an audio signal for outputting an audio signal into an interior 4 forming a part of a passenger compartment 2 of a motor vehicle 3 via an acoustic output device 7 comprising a left and a right acoustic output channel 5, 6.
- the device 1 comprises a partitioning device 8 implemented in hardware and / or software, a mixing device 9 implemented in hardware and / or software, and the output device 7 comprising a left and a right output channel 5, 6 (loudspeaker) Distribution of a provided audio signal S, ie, for example, a piece of music, set up in several audio signal components S.1 - S.3.
- the mixing device 9 is set up for mixing an audio signal component S.1-S.3 onto an output channel 5, 6 of the output device 7.
- the functional interaction of said functional components of the device 1 will be described in more detail in connection with the following explanation of the method implementable with the device 1 for outputting an audio signal into the interior 4 of the motor vehicle 3 forming part of the passenger compartment 2.
- the device 1 is thus configured to carry out a method for outputting an audio signal S into an interior 4 forming a part of a passenger compartment 2 of a motor vehicle 3 via an output device 7 comprising a left and a right output channel 5, 6.
- the objective of the method is to produce an audio signal S via only two output channels 5, 6, d. H. a right and a left output channel and no center output channel to spend comprehensive output device 7 with the best possible stereo width.
- an audio signal S is provided.
- the audio signal S is typically a stereo signal.
- the provision of the audio signal S can take place via various types.
- the audio signal S via a sound carrier, d. H. z. As a CD, a disk, d. H. z. A hard disk space, or a data network, i. H. z. As the Internet, are provided.
- the audio signal S it may be z. B. to a recording of a piece of music, a piece of text, etc. act.
- the provided audio signal S is divided by the splitting device 8 into three perception-direction-dependent audio signal components S.1-S.3.
- the audio signal S can be assigned or assigned by means of the splitting device 8 Examination algorithms with regard to individual audio signal components S.1 - S.3 examines which in the case of actual output of the audio signal S via a two output channels, ie a left and a right output channel, comprehensive output device of a listener perceived output direction or position correspond or would correspond.
- the actual splitting of the audio signal S into the audio signal components S.1-S.3 takes place via a source separation device 10 which includes one of the splitting device 8 and comprises one or more source separation algorithms.
- the audio signal S is divided into a left audio signal component S.1, a center audio signal component S.2, a right audio signal component S.3.
- the center audio signal component S.2 corresponds to an output direction or position centrally perceived by a listener when the audio signal S is actually output via an output device comprising two output channels.
- the left audio signal component S.1 corresponds to an output device (more) on the left (in comparison to a center audio signal component) output direction or position detected by a listener when the audio signal S is actually output via a two output channels.
- the right-hand audio signal component S.3 corresponds to an output device (more) on the right (in comparison to a center audio signal component) output direction or position corresponding to a listener when the audio signal S is actually output via two output channels.
- the division of the audio signal S provides (exactly) three audio signal components, namely a left audio signal component S.1 which contains all or only portions of the audio signal S which are perceived to the left of the center of the output or which are located to the left of the center of the output located, a right audio signal portion S.3, which contains all or only portions of the audio signal S, which are perceived to the right of the center of the output or which are located to the right of the center of the output, and a center audio signal portion S.2, all or only portions of the audio signal S, which are perceived in the center of the output or which are located in the center of the output.
- a left audio signal component S.1 which contains all or only portions of the audio signal S which are perceived to the left of the center of the output or which are located to the left of the center of the output located
- a right audio signal portion S.3 which contains all or only portions of the audio signal S, which are perceived to the right of the center of the output or which are located to the right of the center of the output
- the audio signal components S.1-S.3 are mixed by means of the mixing device 9 to the right and / or the left output channel 5, 6 of the output device 7.
- Each audio signal component S.1 - S.3 is accordingly mixed to a specific output channel 5, 6 of the output device.
- the center audio signal component S.2 it applies that this can also be mixed proportionally to both output channels 5, 6.
- a fourth step of the method the output of the audio signal components S.1 - S.3 via the two output channels 5, 6 of the output device 7.
- the left audio signal S.1 is output via the left output channel 5 of the output device 7
- the right audio signal component S .3 is output via the right output channel 6 of the output device 7
- the center audio signal component S.2 is output via the left and / or the right output channel 5, 6 of the output device 7.
- the center audio signal component can be proportionately divided between the two output channels 5, 6 mixed and therefore proportionately divided over both output channels 5, 6 are output.
- a first component S.2.1 of the center audio signal component S.2 determined by a weighting factor G can be output via the left-hand output channel 5 of the output device 7 and a second component S.2.2 of the center audio signal component S.2 determined by a weighting factor G the right output channel 6 of the output device 7 are output.
- the first component S.2.1 of the center audio signal component S.2 can be output mixed with the left audio signal component S.1 via the left output channel 5 and the second component S.2.2 of the center audio signal component S.2 with the right audio signal component S.
- the weighting of the proportions S.2.1, S.2.2 of the center audio signal component S.2 can be equal or uneven; Consequently, a first portion S.2.1 of the center audio signal component S.2 be greater than a second portion S.2.2 of the center audio signal component S.2, or vice versa.
- a static or dynamic (variable) weighting factor G can be used.
- the weighting factor G z. B. depending on definable or defined boundary conditions can be varied.
- the weighting factor G can be varied depending on certain occupancy of the passenger compartment 2 with vehicle occupants concerning boundary conditions.
- a weighting of the center audio signal component S.2 can accordingly take place as a function of the distribution of respective vehicle occupants located within the passenger compartment 2. The majority of the vehicle occupants driver side, the center audio signal S.2 z. B. with a higher weight on the respective driver-side output channel 5, 6 are output, the majority of the vehicle occupants passenger side, the center audio signal portion S.2 z. B. with a higher weight on the respective passenger-side output channel 5, 6 output.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Multimedia (AREA)
- Stereophonic System (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017106022.7A DE102017106022A1 (de) | 2017-03-21 | 2017-03-21 | Verfahren zur Ausgabe eines Audiosignals in einen Innenraum über eine einen linken und einen rechten Ausgabekanal umfassende Ausgabeeinrichtung |
PCT/EP2018/056404 WO2018172159A1 (de) | 2017-03-21 | 2018-03-14 | Verfahren zur ausgabe eines audiosignals in einen innenraum über eine einen linken und einen rechten ausgabekanal umfassende ausgabeeinrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3603107A1 true EP3603107A1 (de) | 2020-02-05 |
EP3603107B1 EP3603107B1 (de) | 2023-07-12 |
Family
ID=61683785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18711538.1A Active EP3603107B1 (de) | 2017-03-21 | 2018-03-14 | Verfahren zur ausgabe eines audiosignals in einen innenraum über eine einen linken und einen rechten ausgabekanal umfassende ausgabeeinrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US11153686B2 (de) |
EP (1) | EP3603107B1 (de) |
CN (1) | CN110463224A (de) |
DE (1) | DE102017106022A1 (de) |
WO (1) | WO2018172159A1 (de) |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4748669A (en) * | 1986-03-27 | 1988-05-31 | Hughes Aircraft Company | Stereo enhancement system |
CN1650528B (zh) | 2002-05-03 | 2013-05-22 | 哈曼国际工业有限公司 | 多信道下混频设备 |
FI118370B (fi) * | 2002-11-22 | 2007-10-15 | Nokia Corp | Stereolaajennusverkon ulostulon ekvalisointi |
US7991176B2 (en) * | 2004-11-29 | 2011-08-02 | Nokia Corporation | Stereo widening network for two loudspeakers |
WO2006126473A1 (ja) * | 2005-05-23 | 2006-11-30 | Matsushita Electric Industrial Co., Ltd. | 音像定位装置 |
JP2007116365A (ja) | 2005-10-19 | 2007-05-10 | Sony Corp | マルチチャンネル音響システム及びバーチャルスピーカ音声生成方法 |
US8180062B2 (en) * | 2007-05-30 | 2012-05-15 | Nokia Corporation | Spatial sound zooming |
US8265284B2 (en) * | 2007-10-09 | 2012-09-11 | Koninklijke Philips Electronics N.V. | Method and apparatus for generating a binaural audio signal |
JP5564803B2 (ja) | 2009-03-06 | 2014-08-06 | ソニー株式会社 | 音響機器及び音響処理方法 |
WO2013145156A1 (ja) * | 2012-03-28 | 2013-10-03 | パイオニア株式会社 | 音声信号処理装置及び音声信号処理プログラム |
DE102012025016B3 (de) | 2012-12-20 | 2014-05-08 | Ask Industries Gmbh | Verfahren zur Ermittlung wenigstens zweier Einzelsignale aus wenigstens zwei Ausgangssignalen |
US9473852B2 (en) * | 2013-07-12 | 2016-10-18 | Cochlear Limited | Pre-processing of a channelized music signal |
KR101805110B1 (ko) * | 2013-12-13 | 2017-12-05 | 앰비디오 인코포레이티드 | 사운드 스테이지 강화를 위한 장치 및 방법 |
US9301077B2 (en) * | 2014-01-02 | 2016-03-29 | Harman International Industries, Incorporated | Context-based audio tuning |
KR20180075610A (ko) * | 2015-10-27 | 2018-07-04 | 앰비디오 인코포레이티드 | 사운드 스테이지 향상을 위한 장치 및 방법 |
-
2017
- 2017-03-21 DE DE102017106022.7A patent/DE102017106022A1/de active Pending
-
2018
- 2018-03-14 EP EP18711538.1A patent/EP3603107B1/de active Active
- 2018-03-14 CN CN201880019782.XA patent/CN110463224A/zh active Pending
- 2018-03-14 WO PCT/EP2018/056404 patent/WO2018172159A1/de unknown
- 2018-03-14 US US16/493,476 patent/US11153686B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN110463224A (zh) | 2019-11-15 |
US11153686B2 (en) | 2021-10-19 |
US20200137496A1 (en) | 2020-04-30 |
WO2018172159A1 (de) | 2018-09-27 |
DE102017106022A1 (de) | 2018-09-27 |
EP3603107B1 (de) | 2023-07-12 |
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