EP1238567B1 - Verfahren zur festlegung der hifi-position eines audiosystems - Google Patents
Verfahren zur festlegung der hifi-position eines audiosystems Download PDFInfo
- Publication number
- EP1238567B1 EP1238567B1 EP00984861A EP00984861A EP1238567B1 EP 1238567 B1 EP1238567 B1 EP 1238567B1 EP 00984861 A EP00984861 A EP 00984861A EP 00984861 A EP00984861 A EP 00984861A EP 1238567 B1 EP1238567 B1 EP 1238567B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- loudspeaker
- hifi
- measurement
- signals
- volumes
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- H04R5/02—Spatial or constructional arrangements of loudspeakers
Definitions
- the present invention relates to a method for determining the HIFI position an audio system, in particular a car radio, with at least two speakers, the volume and / or duration of the individual speaker signals are measured and the volume levels and / or phases of the emitted loudspeaker signals as a function of Result of the measurement can be changed.
- a method of the type mentioned is from the prior art from car radios (for example car radio Blau Vietnamese fries RCM 127, company Bosch, Germany).
- car radios for example car radio Blau Vietnamese fries RCM 127, company Bosch, Germany.
- this car radio becomes a supplied microphone with the opening after attached to the roof of the vehicle. This can be especially true for a first one Position above the driver and for a second position above the passenger seat happen.
- the measuring process is then carried out by pressing a button started.
- the speakers of the car radio test signals which are sent separately and in different frequencies be recorded by the microphone.
- a 9-way equalizer is then adjusted.
- DSA Digital Signal Adaptation
- DSA Digital Signal Adaptation
- the equalizer is a tone control device, with which to equalize, correct or otherwise influence the Sound image the volume of several frequency bands of the entire audio frequency range can be regulated separately.
- Patent Abstract of Japan to JP-6046499 discloses a playback device for Audio signals in a motor vehicle, in which the audio signal over at least two Speaker is output in the vehicle interior.
- the audio signal over at least two Speaker is output in the vehicle interior.
- the head position of the driver's installed microphone becomes the audio signals recorded and subsequently in an adaptive control with the from Signal source emitted audio signals compared, adaptive from the comparison Filters to adjust the frequency response, the transit time and the step response of the Audio signals can be controlled. So there will be an adaptive filter automatically on one presumed seating position of the listener at which the microphone is arranged.
- the object of the present invention was to provide a method at the outset to improve the type mentioned in such a way that it is easier to carry out is, offers more sound options and greater freedom of position for the HIFI positions allowed. It should also be inexpensive Developed device for performing the method developed become.
- the method is characterized in that the measurement is at a reference position and from this the relocation of the HIFI position necessary changes in the speaker signals can be calculated.
- the desired HIFI position attached a microphone at this position so that for this position a measurement and change of the Loudspeaker signals can take place.
- the measurement on one more or less freely selectable reference position carried out, in usually a single measurement for any number of subsequent changes sufficient in the HIFI position.
- the reference position can be the cost of materials and thus the manufacturing price of the audio system can be reduced.
- the establishment of a new one HIFI position is considerably simplified because there is no separate measurement for this with a microphone at the desired position is necessary, but since the required parameters are calculated from the one-off Measurement at the reference position can be determined. such Meanwhile, calculations can be automated and burden the user of the audio system therefore not.
- the measurement is preferably carried out in the method and the change in speaker signals in different frequency ranges Cut. Taking frequency dependence into account the acoustics allow a significant improvement in the achievable Sound quality.
- Claim 3 shows a further development of the method which allows a particularly simple determination of the necessary changes in the loudspeaker signals for a desired HIFI position.
- gain correction factors f 1 or f 2 for said first loudspeaker or second loudspeaker are first determined from the volumes measured at the reference position by a first loudspeaker or a second loudspeaker in such a way that application of these amplification factors to the respective loudspeaker leads to that the signals from these loudspeakers then reach an equal volume or a desired delay time difference (in particular zero) at the reference position.
- the application of these gain correction factors makes the reference position the optimal HIFI position.
- the factors can also be multidimensional (vectors) to allow different amplifications for different frequency bands.
- Such cross-fading can in principle also take place for more than two loudspeakers, whereby, by means of a parameter ⁇ , a vector of gain correction factors (f 1 , f 2 ... f n ) into another predetermined vector (f 1 ', f 2 ' ... f n ') can be transferred.
- the described method has the effect that the HIFI position can be shifted along an axis parallel to the connecting line of the two loudspeakers with the aid of the parameter ⁇ . If the reference position is at the level of one of the loudspeakers, the parameter ⁇ will mainly move in the range between 0 and 1, whereby the HIFI position is shifted accordingly between the two loudspeakers.
- such a control method is particularly advantageous for shifting the HIFI position in the direction of the vehicle axis (from front to back and back). This applies in particular if the reference position is at the height of the front loudspeaker, which is usually the case when the reference position is integrated into the car radio.
- a device for Implementation of the procedure outlined above includes one in the audio system Integrated microphone for measuring the loudspeaker signals the reference position and an adjustment device for changing of the emitted loudspeaker signals.
- the Microphones for measuring the audio system can be compared to the known Systems on a separate microphone with complex wiring and with suitable plug systems. Reduce this the manufacturing cost of the audio system respectively Car radio.
- the device can be used with such a device the achievable advantages of the method described above, the means in particular a simpler and more flexible determination of the HIFI position.
- the setting device preferably contains the device an equalizer for each of the connected speakers. This allows for each speaker separately and by frequency range optimal parameters can be set.
- the device contains this at least one input device for specifying the desired HIFI position by the user.
- an input device it can in particular be an adjustment knob or adjustment slide or act like that.
- two such input devices provided which the HIFI position in mutually orthogonal Shift spatial directions.
- a third device be provided, which the HIFI position in a third, spatial direction orthogonal to the first two spatial directions shifts.
- you can use the car radio can be dispensed with without loss of quality.
- Most of the above are mutually perpendicular spatial directions parallel or perpendicular to the vehicle axle. That means that the Right / left position of the HIFI position and via another controller Front / rear position can be set (fading, balance).
- the figure shows schematically the conditions in a car, which a car radio 10 and four arranged approximately at the corners of a rectangle Includes speakers RF, RR, LR, LF.
- an audio system used in the car which especially a cassette recorder and / or a CD player may contain.
- the sound waves emanating from the speakers (indicated by arrows) reach different points of the room different times and with different volumes as they are too These points each have different lengths and differently shaped paths have to cover.
- the optimal HIFI position is the position in the room where all loudspeaker signals are at exactly the "right" time and arrive at the "right" volume, which corresponds to the circumstances correspond to the real sound recording. It is therefore endeavored by individually changing the amplification of the individual speakers and if necessary by changing their phase (runtime correction) to move the HIFI position to the place of the room which of the listeners (e.g. driver or passenger) is sitting.
- the desired HIFI position is used for this purpose brought a microphone and the parameters of the speaker signals will then be corrected until the HIFI position to the location of the
- Microphones come to rest. However, this requires for each new one you want HIFI position a complex measurement procedure using a microphones separate from the car radio.
- a microphone 11 placed in the cap of the car radio and permanently installed. The opening of the microphone points into the vehicle interior.
- the individual Speakers When carrying out the calibration process, the individual Speakers separately emitted signals in different frequency ranges, their arrival at the microphone 11 is recorded. The measured Volume values and, if applicable, runtimes are digital stored. These digitized LF signals can then preferably processed in a microprocessor (for example a DSA module) become.
- a microprocessor for example a DSA module
- the parameters of the other speakers are changed accordingly Wise. After these measures, the HIFI position 12 at Microphone 11 lie.
- Describe the shift of the HIFI position to another desired listening position 13 (for example the driver's head area) as follows.
- the approach to the listening position 13 is realized with a setting option of, for example, 24 steps from the loudspeaker LF to the loudspeaker LR.
- the difference between the gain correction factors between these two speakers is calculated and divided into 24 steps.
- the settings of the individual bands are usually not made by the user performed.
- the user can use the HIFI position, for example move with a GEO key.
- the balance can typically be with +/- 12 steps and the fader can also be shifted with +/- 12 steps.
- the individual frequency bands are individually adjusted in the background. The process serves to bring the listening position closer to the measured position HIFI position, treble and bass boost can be set afterwards become.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Stereophonic System (AREA)
Description
| 100 Hz | LR | LF |
| Gemessen [dB]: | 8 | - 4 |
| Gerechnete Stelimöglichkeit: | 12 | 12 |
| Stellmöglichkeit/Step: | 0,48 | 0,48 |
| Stepweite: | 0,5 | 0,5 |
| Mögliche Steps: | Anhebung LR [dB] | Anhebung LF [dB] |
| 12 | 8 | -4 |
| 11 | 8 | -4 |
| 10 | 7 | -3 |
| 9 | 7 | -3 |
| 8 | 6 | -2 |
| 7 | 6 | -2 |
| 6 | 5 | - 1 |
| 5 | 5 | - 1 |
| 4 | 0 | 0 |
| 3 | 4 | 0 |
| 2 | 3 | 1 |
| 1 | 3 | 1 |
| 0 | 2 | 2 |
| - 1 | 2 | 2 |
| - 2 | 1 | 3 |
| - 3 | 1 | 3 |
| - 4 | 0 | 4 |
| - 5 | 0 | 4 |
| - 6 | - 1 | 5 |
| - 7 | - 1 | 5 |
| - 8 | -2 | 6 |
| - 9 | -2 | 6 |
| - 10 | - 3 | 7 |
| - 11 | -3 | 7 |
| - 12 | -4 | 8 |
Claims (3)
- Verfahren zur Festlegung der HIFI-Position (13) eines Audiosystems, insbesondere eines Autoradios (10), mit mindestens zwei Lautsprechern (LF, LR, RF, RR), wobei die Lautstärken und/oder Laufzeiten der einzelnen Lautsprechersignale gemessen werden und die Lautstärken und/oder Phasen der emittierten Lautsprechersignale in Abhängigkeit vom Ergebnis der Messung verändert werden,
dadurch gekennzeichnet, dass die Messung an einer Referenzposition erfolgt und hieraus die zur Verlagerung der HIFI-Position notwendigen Veränderungen der Lautsprechersignale berechnet werden. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass die Messung und die Veränderung der Lautsprechersignale in verschiedenen Frequenzbereichen getrennt erfolgt. - Verfahren nach einem der Ansprüche 1 oder 2,
dadurch gekennzeichnet, dass aus den an der Referenzposition gemessenen Lautstärken eines ersten Lautsprechers (LR) und mindestens eines zweiten Lautsprechers (LF) Verstärkungskorrekturfaktoren f1 und f2 für den ersten bzw. zweiten Lautsprecher berechnet werden, welche zu identischen Lautstärken bei der Referenzposition führen,
und dass die Verschiebung der HIFI-Position über die Einstellung eines Parameters λ erfolgt, wobei dem ersten Lautsprecher (LR) der Verstärkungskorrekturfaktor f1 + λ (f2 - f1) und dem zweiten Lautsprecher (LF) der Verstärkungskorrekturfaktor f2 + λ (f1 - f2) zugeordnet wird.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19959025 | 1999-12-08 | ||
| DE19959025A DE19959025A1 (de) | 1999-12-08 | 1999-12-08 | Verfahren zur Festlegung der HIFI-Position eines Audiosystems |
| PCT/DE2000/003762 WO2001043502A2 (de) | 1999-12-08 | 2000-10-25 | Verfahren zur festlegung der hifi-position eines audiosystems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1238567A2 EP1238567A2 (de) | 2002-09-11 |
| EP1238567B1 true EP1238567B1 (de) | 2004-06-02 |
Family
ID=7931765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00984861A Expired - Lifetime EP1238567B1 (de) | 1999-12-08 | 2000-10-25 | Verfahren zur festlegung der hifi-position eines audiosystems |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1238567B1 (de) |
| JP (1) | JP2003516687A (de) |
| DE (2) | DE19959025A1 (de) |
| ES (1) | ES2222258T3 (de) |
| WO (1) | WO2001043502A2 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4501759B2 (ja) * | 2005-04-18 | 2010-07-14 | 船井電機株式会社 | 音声コントローラ |
| EP1792662A1 (de) | 2005-11-30 | 2007-06-06 | Microflow Engineering SA | Tropferspendervorrichtung |
| JP4839924B2 (ja) * | 2006-03-29 | 2011-12-21 | ソニー株式会社 | 車載用電子機器、車内空間の音場最適化補正方法及び車内空間の音場最適化補正システム |
| CN104270695B (zh) * | 2014-09-01 | 2018-07-31 | 歌尔股份有限公司 | 一种自动调整车内声场分布的方法和系统 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63177604A (ja) * | 1986-10-29 | 1988-07-21 | Mazda Motor Corp | 車両用音響機器制御装置 |
| JPH0646499A (ja) * | 1992-07-24 | 1994-02-18 | Clarion Co Ltd | 音場補正装置 |
| JPH07274282A (ja) * | 1994-03-31 | 1995-10-20 | Suzuki Motor Corp | 車輌用音響装置の調整方法およびその装置 |
-
1999
- 1999-12-08 DE DE19959025A patent/DE19959025A1/de not_active Withdrawn
-
2000
- 2000-10-25 ES ES00984861T patent/ES2222258T3/es not_active Expired - Lifetime
- 2000-10-25 JP JP2001543071A patent/JP2003516687A/ja active Pending
- 2000-10-25 EP EP00984861A patent/EP1238567B1/de not_active Expired - Lifetime
- 2000-10-25 DE DE50006705T patent/DE50006705D1/de not_active Expired - Lifetime
- 2000-10-25 WO PCT/DE2000/003762 patent/WO2001043502A2/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| ES2222258T3 (es) | 2005-02-01 |
| WO2001043502A2 (de) | 2001-06-14 |
| DE50006705D1 (de) | 2004-07-08 |
| JP2003516687A (ja) | 2003-05-13 |
| EP1238567A2 (de) | 2002-09-11 |
| WO2001043502A3 (de) | 2002-01-31 |
| DE19959025A1 (de) | 2001-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101337842B1 (ko) | 사운드 동조 방법 | |
| EP1013141B1 (de) | Verfahren und anordnung zur wiedergabe eines stereophonen audiosignals | |
| DE69635853T2 (de) | Gerät zur akustischen Korrektur | |
| DE60036832T2 (de) | Tonwiedergabevorrichtung für ein Fahrzeug | |
| DE4134130C2 (de) | Vorrichtung zum Aufweiten und Ausbalancieren von Schallfeldern | |
| DE4013398C2 (de) | Schallwiedergabesystem für den Innenraum eines Kraftfahrzeugs | |
| EP2296356B1 (de) | Verfahren und Vorrichtung zur Analyse und Abstimmung akustischer Eigenschaften einer Kfz-Freisprecheinrichtung | |
| EP0917398B1 (de) | Hörgerät und Verfahren zur Einstellung audiologischer/akustischer Parameter | |
| DE60127200T2 (de) | Automatisches Schallfeld-Korrektursystem | |
| DE4326746A1 (de) | Lautstärkeregelgerät | |
| DE10144623A1 (de) | Audiowiedergabegerät für Kraftfahrzeug | |
| DE60012316T2 (de) | Programmierbares multi-mode, multi-mikrofon system | |
| EP0642292B1 (de) | Einrichtung zur stereophonen Wiedergabe | |
| WO2017080830A1 (de) | Audiosignalverarbeitung in einem fahrzeug | |
| DE3907275C2 (de) | Tonsystem | |
| DE102006036318A1 (de) | Schallfeld-Kompensationsvorrichtung und Schallfeld-Kompensationsverfahren | |
| DE102009022685A1 (de) | Audiosystem und Verfahren zur Beschallung von Insassen eines Fahrzeugs | |
| DE60125259T2 (de) | Schallfeld-korrekturverfahren in einem Audiosystem | |
| EP1238567B1 (de) | Verfahren zur festlegung der hifi-position eines audiosystems | |
| DE19580412C1 (de) | Verfahren und Vorrichtung zur Kompensation akustischer Verfälschungen infolge der Raumakustik bei der Tonwiedergabe durch elektro-akustische Wiedergabegeräte | |
| DE102008059239A1 (de) | Lautsprechervorrichtung in einem Fahrzeug und Fahrzeug mit mehreren Lautsprechervorrichtungen | |
| DE102022202390A1 (de) | Verfahren zum Betreiben eines Audiosystems in einem Fahrzeug und zugehörige Vorrichtung | |
| DE102023107434B3 (de) | Kalibrierung eines Lautsprechersystems | |
| DE10113087B4 (de) | Anordnung zur Signalverarbeitung in einem Kraftfahrzeug | |
| DE202022103953U1 (de) | Regelanlage für ein für einen Nutzer individualisiertes Audiowiedergabesystem |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| 17P | Request for examination filed |
Effective date: 20020731 |
|
| 17Q | First examination report despatched |
Effective date: 20030224 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR IT |
|
| REF | Corresponds to: |
Ref document number: 50006705 Country of ref document: DE Date of ref document: 20040708 Kind code of ref document: P |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
| ET | Fr: translation filed | ||
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2222258 Country of ref document: ES Kind code of ref document: T3 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20050303 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20091026 Year of fee payment: 10 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20091110 Year of fee payment: 10 Ref country code: IT Payment date: 20091024 Year of fee payment: 10 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101102 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20110630 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20111118 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101025 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101026 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20111205 Year of fee payment: 12 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130501 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50006705 Country of ref document: DE Effective date: 20130501 |