WO2010010132A1 - Dispositif destiné à produire dans un véhicule automobile des sons dépendant de son état - Google Patents

Dispositif destiné à produire dans un véhicule automobile des sons dépendant de son état Download PDF

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Publication number
WO2010010132A1
WO2010010132A1 PCT/EP2009/059455 EP2009059455W WO2010010132A1 WO 2010010132 A1 WO2010010132 A1 WO 2010010132A1 EP 2009059455 W EP2009059455 W EP 2009059455W WO 2010010132 A1 WO2010010132 A1 WO 2010010132A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
sounds
stored
motor vehicle
memory
Prior art date
Application number
PCT/EP2009/059455
Other languages
German (de)
English (en)
Inventor
Carsten Schulz
Original Assignee
Leopold Kostal Gmbh & Co. Kg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Leopold Kostal Gmbh & Co. Kg filed Critical Leopold Kostal Gmbh & Co. Kg
Publication of WO2010010132A1 publication Critical patent/WO2010010132A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/18—Selecting circuits
    • G10H1/26—Selecting circuits for automatically producing a series of tones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/541—Details of musical waveform synthesis, i.e. audio waveshape processing from individual wavetable samples, independently of their origin or of the sound they represent
    • G10H2250/571—Waveform compression, adapted for music synthesisers, sound banks or wavetables
    • G10H2250/591—DPCM [delta pulse code modulation]

Definitions

  • the invention relates to a device for condition-dependent output of sounds in a motor vehicle, which is suitable for outputting sounds that are assigned to specific vehicle states and are each determinable from sound data stored in a memory unit arranged in the motor vehicle.
  • the solution according to the invention thus provides a signal format which minimizes the expenditure for storage and reproduction by a computer and at the same time enables a high-quality representation of the signal.
  • Typical storage formats for audio signals include the Wave format (also called “wav” for short) and the MPEG-1 Audio Layer 3 format ("mp3" for short).
  • the wav format usually stores a digitized audio signal in uncompressed form and, since it has no compression losses, is optimal in terms of sound quality. The reproduction is essentially by a simple digital-to-analog conversion and is therefore feasible by a computer unit with little effort.
  • the disadvantage is that the storage space requirement of this data format is considerable. In contrast, the storage space requirement of mp3 data is extremely low. Thanks to an elaborate compression algorithm, the sound quality is still acceptable even at a relatively high compression rate. The disadvantage here is that even the decoding of the mp3 data require a high computational effort.
  • Computing unit with a high performance required. This result in principle two possibilities. First, the arithmetic unit can be provided exclusively for the reproduction of sound files. It is obvious that a separate computing unit with a high performance for relatively rare warning signals is disproportionately expensive.
  • the second possibility is that a computer is provided for sound reproduction, which also performs other functions in parallel. In this case, it must be ensured that these possibly safety-relevant functions are not impaired by the high computation required for the reproduction of mp3 data. It would also be unfavorable if the playing of the sound files would be interrupted or even interrupted if the arithmetic unit were otherwise used. Such an interruption would be very conspicuous, and could give the user of the motor vehicle the impression that there is a malfunction.
  • a data format is provided according to the invention, which provides both the storage space requirement and the performance of the arithmetic unit only relatively small requirement and at the same time enables a high-quality sound reproduction.
  • the sound signals are stored in a format in which the digitization sites not the absolute values of the respective waveform are detected, but in each case the difference values to the signal value at the previous Digitmaschinesstelle.
  • This type of digitization is known in principle and is referred to as differential pulse code modulation (DPCM). Since the difference in signal values at two consecutive digitizing locations is generally less than the absolute values of the signals at these locations for typical audio signals, the storage of the differences can be done with a much smaller word width than would be required to store the absolute values (e.g. a 12-bit instead of a 16-bit word). As a result, the storage space required for storing the sounds can already be significantly reduced.
  • a further storage space saving can be achieved by logarithmizing the detected difference values before the storage.
  • large signal changes are in absolute terms less accurately resolved, as small signal changes, but this brings only small, barely perceptible loss of sound quality.
  • the psychoacoustic effect is exploited that the human ear at high amplitudes is less sensitive to disturbances (quantization errors) than at low amplitudes.
  • the decoding of such a stored signal does not require a particularly high computational effort and RAM memory requirements and therefore only a small processor loads a simple processor.
  • the arithmetic unit can therefore be provided parallel to the realization of other functions without further ado. It is also advantageous if the sound files are present in several sets that have different sound characteristics. These sound characteristics, for example, each subject to a common sound theme, so that the vehicle user can choose the soundset most appropriate to his personal taste.
  • the sound sets are stored in a rewritable memory, so that existing sound sets are, if necessary, interchangeable with new sets of sounds, resulting in more choices for the vehicle user. It proves to be particularly advantageous that each individual sound file occupies only relatively little space, so that even a number of sound sets, each consisting of several sound files can be stored with a reasonable effort in a memory.
  • the replacement or addition of sound sets for example, by adding an external
  • Figure 1 is a schematic diagram of the device
  • Figure 2 is a signal diagram.
  • FIG. 1 shows schematically the structure of the device.
  • the device has a sound memory (KS), which can be designed as a cost-effective flash memory.
  • KS sound memory
  • the user of the Motor vehicle can choose from a set of sound files according to his personal preferences (AW) and actively switch.
  • AW personal preferences
  • the user has the ability to load sound files as a download (DL) from an external data source via a microcomputer (MC) in the rewritable sound memory (KS), and so adjust the sound sets in addition to their own taste.
  • DL download
  • MC microcomputer
  • KS rewritable sound memory
  • a computing unit such as a microcomputer (MC)
  • the sound data to a digital-to-analog converter (DAC) is made audible its analog output signal from an amplifier (AMP) and an associated speaker (LS) becomes.
  • MC microcomputer
  • DAC digital-to-analog converter
  • the playing of the sounds causes the arithmetic unit (MC) in dependence on states which are detected by the arithmetic unit (MC), such as the position of control switches or operating elements (BE). Furthermore, other control devices within the vehicle can influence the playback, such as the parking aid.
  • MC arithmetic unit
  • BE operating elements
  • the arithmetic unit (MC) is also intended to perform functions that are triggered by the controls (BE).
  • the device can for example be used advantageously in a steering column module in which various switches, in particular steering column switch, but also a steering angle sensor can form operating elements whose output signals are processed by the arithmetic unit (MC).
  • Playing sound files is thus one of several tasks performed by the arithmetic unit (MC).
  • a negative influence on the arithmetic unit (MC) with regard to other tasks is avoided by the fact that the sound files in the sound memory (KS) in a Data format are stored, which requires only a small portion of their possible processing power when playing the arithmetic unit (MC).
  • PCM Pulse Code Modulation
  • DPCM Differential Pulse Code Modulation

Abstract

L'invention concerne un dispositif destiné à produire dans un véhicule automobile des sons dépendant de son état. Le dispositif convient pour produire, à partir de données sonores qui sont stockées dans une unité de mémoire installée dans le véhicule automobile, des sons qui sont associés à certains états du véhicule et qui sont identifiables. Les sons sont mémorisés sous la forme de signaux différentiels codés logarithmiquement.
PCT/EP2009/059455 2008-07-24 2009-07-22 Dispositif destiné à produire dans un véhicule automobile des sons dépendant de son état WO2010010132A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810034437 DE102008034437A1 (de) 2008-07-24 2008-07-24 Vorrichtung zur zustandsabhängigen Ausgabe von Klängen in einem Kraftfahrzeug
DE102008034437.0 2008-07-24

Publications (1)

Publication Number Publication Date
WO2010010132A1 true WO2010010132A1 (fr) 2010-01-28

Family

ID=41064597

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/059455 WO2010010132A1 (fr) 2008-07-24 2009-07-22 Dispositif destiné à produire dans un véhicule automobile des sons dépendant de son état

Country Status (2)

Country Link
DE (1) DE102008034437A1 (fr)
WO (1) WO2010010132A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019129851A1 (de) * 2019-11-06 2021-05-06 Audi Ag Verfahren und Vorrichtung zur zustandsabhängigen Ausgabe von Klangfolgen für mindestens ein Fahrzeugassistenzsystem

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667088A (en) * 1981-11-02 1987-05-19 Kramer Kane N Portable data processing and storage system
US5396238A (en) * 1991-08-08 1995-03-07 Casio Computer Co., Ltd. Data compressing and expanding apparatus for tone generation
DE10349153A1 (de) * 2003-10-15 2005-05-12 Volkswagen Ag Schalteinrichtung mit Zünd-/Anlassschalter
US20050261815A1 (en) * 2004-05-20 2005-11-24 Cowelchuk Glenn A System for customizing settings and sounds for vehicle
WO2006128577A1 (fr) * 2005-06-01 2006-12-07 Bayerische Motoren Werke Aktiengesellschaft Dispositif pour emettre des suites de sons dans un vehicule en fonction d'un etat
US20080024285A1 (en) * 2006-01-23 2008-01-31 Vandenbrink Kelly A Customer Selectable Vehicle Notification Sounds
US20080114904A1 (en) * 2006-11-14 2008-05-15 Michael Thomas Kosco Sounding custom motor vehicle horntones

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667088A (en) * 1981-11-02 1987-05-19 Kramer Kane N Portable data processing and storage system
US5396238A (en) * 1991-08-08 1995-03-07 Casio Computer Co., Ltd. Data compressing and expanding apparatus for tone generation
DE10349153A1 (de) * 2003-10-15 2005-05-12 Volkswagen Ag Schalteinrichtung mit Zünd-/Anlassschalter
US20050261815A1 (en) * 2004-05-20 2005-11-24 Cowelchuk Glenn A System for customizing settings and sounds for vehicle
WO2006128577A1 (fr) * 2005-06-01 2006-12-07 Bayerische Motoren Werke Aktiengesellschaft Dispositif pour emettre des suites de sons dans un vehicule en fonction d'un etat
US20080024285A1 (en) * 2006-01-23 2008-01-31 Vandenbrink Kelly A Customer Selectable Vehicle Notification Sounds
US20080114904A1 (en) * 2006-11-14 2008-05-15 Michael Thomas Kosco Sounding custom motor vehicle horntones

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Publication number Publication date
DE102008034437A1 (de) 2010-01-28

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