EP0873041B1 - Processeur numérique du son - Google Patents

Processeur numérique du son Download PDF

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Publication number
EP0873041B1
EP0873041B1 EP97106519A EP97106519A EP0873041B1 EP 0873041 B1 EP0873041 B1 EP 0873041B1 EP 97106519 A EP97106519 A EP 97106519A EP 97106519 A EP97106519 A EP 97106519A EP 0873041 B1 EP0873041 B1 EP 0873041B1
Authority
EP
European Patent Office
Prior art keywords
sound processor
signals
control
digital
digital sound
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
Application number
EP97106519A
Other languages
German (de)
English (en)
Other versions
EP0873041A1 (fr
Inventor
Martin Dipl.-Phys. Winterer
Miodrag Prof. Dr.-Ing. Temerinac
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Micronas Semiconductor Holding AG
Original Assignee
Micronas Semiconductor Holding AG
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 Micronas Semiconductor Holding AG filed Critical Micronas Semiconductor Holding AG
Priority to DE59710047T priority Critical patent/DE59710047D1/de
Priority to EP97106519A priority patent/EP0873041B1/fr
Priority to US09/061,465 priority patent/US6141646A/en
Priority to JP10962498A priority patent/JP4145989B2/ja
Publication of EP0873041A1 publication Critical patent/EP0873041A1/fr
Application granted granted Critical
Publication of EP0873041B1 publication Critical patent/EP0873041B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/13—Aspects of broadcast communication characterised by the type of broadcast system radio data system/radio broadcast data system [RDS/RBDS]

Definitions

  • the invention relates to a digital sound processor for processing Multistandard sound signals that are input as analog or digital signals at least one source to the sound processor in baseband or higher Frequency position are supplied and starts from DE-A-195 13 005.
  • Such sound processors are suitable for the sound signals to process a wide variety of transmission standards for entertainment, for example sound signals from a wide variety of television standards, satellite receivers, VCRs, traffic receivers, etc., but also audio signals using special sound cards are generated by personal computers.
  • Via control inputs the processing in the digital sound processor to the respective transmission standard or sound source adapted and the desired via internal processors Sound impression, with regard to highs, lows, volume, room etc., set.
  • DE 195 13 005 A1 describes a digital sound processor for use in a Computer described.
  • the computer is integrated Plug-in module, which contains the digital sound processor as a function block, expanded and thus enabled in connection with high quality Sound reproduction devices can also be used for radio reception in HiFi quality.
  • Plug-in module contains the digital sound processor as a function block, expanded and thus enabled in connection with high quality Sound reproduction devices can also be used for radio reception in HiFi quality.
  • EP 0 725 504 A2 describes a radio data receiver with a device for output of digitally coded traffic reports described as digital Additional information for traffic radio radio broadcasts are also transmitted. This additional information is used to send the relevant traffic announcement classify, specify the geographic area concerned, a clue to deliver whether the message is on federal highways, country roads or Relates to urban areas, etc. With such messages the individual Traffic reports are selectively recorded and saved, which is relevant the query easier.
  • An exemplary embodiment sees a voice output with a speech synthesis device, the event-specific messages as allows acoustic information. These messages are strictly the assigned to individual additional information. With corresponding queries the selectively called announcements, for example with a synthetically generated one Start the message "Traffic jam on the following routes".
  • control input in respective sound processor is coupled to an internal audio signal source that automatically generates audio signals using the signals supplied at the control input, the existing sound reproduction equipment or others Sound reproduction devices are supplied.
  • the internal audio signal source with the associated circuits which essentially comprise memory devices easily added to the monolithically integrated circuit of the digital sound processor can be.
  • existing functional units can, for example digital filters and tone control stages as well as digital / analog converter and amplifiers in the output area.
  • the generated audio signals are either defined by a data sequence, the is supplied by means of a suitable data format via the external control lines or is read from an internal storage device.
  • ROM read-only memory
  • the Storage device also includes a buffer memory in the internal control device with which usually the data transfer from the external control device is decoupled in time.
  • the decoupling with regard to the data rate and the Clock systems and the digital processing protocol for the detection of the transmission and Willingness to receive is also called "handshake data transfer procedure" or abbreviated "handshake protocol”.
  • Such synthetic processes per se have long been known. With appropriate Execution can even be done using the synthesis method of a speech synthesizer realize digital sound processor. This can be particularly interesting Applications in connection with other functional units in the respective device or be carried out in the respective device combination.
  • the single Control commands or operating states can be identification melodies or acoustic Identification signals are assigned.
  • speech synthesis application-related information or requests are triggered. For example, it can be decoded in conjunction with a teletext processor Convert text information into speech.
  • the digital sound processor 1 shown in the figure shows the essential internal and external functional units that work together.
  • the Electronic connections are only simple lines with an arrow shown to indicate the direction of signal flow. Whether it is the Transmission of analog or digital signals is from the description out.
  • existing functional units are not shown, for example only an external one
  • loudspeaker symbol although for stereo or even stereo surround playback at least two spatially separate speaker systems and associated signal outputs must be available.
  • the digital sound processor 1 contains a first, second and third internal Sound processor 2, 3, 4, the input side with a first, second and third external Signal source 4, 5, 6 are connected.
  • the first signal source 4 corresponds to the Input and frequency conversion circuits of a television receiver, which as Output signal the complex television signal mixture in analog form in the Deliver baseband position or an intermediate frequency position. This analog signal will digitized by means of a first analog / digital converter 7 and for processing fed to the first sound processor 2. It is also conceivable that the first sound processor 2 is already fed with previously digitized signals.
  • the second signal source 5 represents, for example, a satellite receiver that already delivers digital output signals or its analog output signal is quantized and easily by means of a simple analog / digital converter 8 for the second sound processor 3 can be converted into a data stream.
  • the third signal source 6 represents, for example, a video recorder, the analog one Output signal is digitized by means of an analog / digital converter 9 and the third sound processor 4 feeds.
  • All sound processors 2, 3, 4 are internal Control lines 110, 120 connected to an internal control processor 10, which the controls the respective operating mode of the digital sound processor 1. He evaluates for control once the information from the individual sound processors 2,3,4, but in particular also information that is supplied to it via an external control bus 11 are connected to corresponding input and / or output sockets 100, 105 is connected. External to these unidirectional or bidirectional control bus 11 Control devices connected, for example a remote control receiver 12 in a television or control devices 13 of a personal computer.
  • the digital sound processor 1 in the figure contains a matrix and mixer stage 14 which on the input side with all sound processors 2, 3, 4 and on the output side with the Various outputs for sound reproduction devices via digital / analog converter 15,18,21 and / or amplifier is coupled.
  • a matrix and mixer stage 14 which on the input side with all sound processors 2, 3, 4 and on the output side with the Various outputs for sound reproduction devices via digital / analog converter 15,18,21 and / or amplifier is coupled.
  • Another exit passes through the digital / analog converter 18, an amplifier 19 to one Headphones 20 and an output passes through the digital / analog converter 21, one Amplifier 22 to a linear output socket 23 of the digital sound processor 1.
  • the linear output socket 23 corresponds to a digital one
  • the functional units described so far essentially correspond to Functional units of the MSP 3410D digital sound processor mentioned at the beginning.
  • the Output signals of the audio signal source 27 can be through the matrix and mixer device 14 switched to any signal outputs of the sound processor 1 or added to the existing signals, whereby these may be lowered in level by the internal control processor 10. If the sound processor 1, for example, for audio signal processing in one Car radio, then this way you can make traffic announcements or Traffic information or acoustic identification or warning signals overlay existing audio signals.
  • Trigger command determines, for example Start address of an address generator, which then stores the stored signal sequence reads sequentially from the memory device 28.
  • Another trigger command the is assigned to another externally supplied control signal, reads another Audio signal sequence.
  • control signal is usually assigned control sequence in the digital sound processor 1 essentially unchanged expires if the control signal is recognized as such.
  • these are Control signals programmable by the device manufacturer or by the received transmission standard specified or correspond to standardized Control commands.
  • the invention also brings about a additional function of these known control commands, or the invention used new control commands that have no effect on previous sound processors, because they are not recognized there.
  • the sound processors according to the invention can therefore be interchangeable with existing sound processors.
  • Simple tone or sound sequences can also be used as a control command sequence, the beginning of which and end is characterized by the data format, via the control bus 11 and the Input and output circuit 26 in the memory device 28 or one Buffer memory 280 can be loaded. It can be used, for example, to create your own tone sequences in Connection to a personal computer connected as an external control device 13 be programmed.
  • When playing these sound sequences is in the Regulate the relatively low data rate on the control bus 11 by a temporal Compression of data before digital / analog conversion for playback too increase or by temporal interpolation of the signal content to a higher one Adapt data rate.
  • the system clock frequency in the digital sound processor 1 is in usually high enough, e.g.
  • Incoming digital Audio signals for example from a satellite receiver 5, are in the Frequency range much lower, namely at 32 kHz, 44 kHz or 48 kHz, so that the System clock frequency is also sufficiently high.
  • the internal audio signal source 27 works as a synthesizer, then it takes effect also on stored signals, as specified as audio or signal modules are referred to in the memory device 28. Only reading out the individual memory addresses are no longer sequential, but in a predetermined one Sequence. The sequence of this sequence is as a micro program in one Microprogram memory 29 stored as part of the figure Storage device 28 is shown. The use of the microprogram allows the stored signal blocks to be used multiple times, both in the signal to be synthesized as well as in different signals. On The implementation is a very interesting application example for speech synthesis at least the alphanumeric output signals of a teletext processor 150 or a PC screen display with text information in speech signals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Electrophonic Musical Instruments (AREA)

Claims (7)

  1. Processeur de son numérique (1) destiné au traitement de signaux audio multistandard qui sont envoyés au processeur de son (1), du côté de l'entrée, sous la forme de signaux analogiques ou numériques, à partir d'au moins une source de signaux (4, 5, 6), dans la bande de base ou à une fréquence plus élevée et à partir desquels on forme des signaux de sortie séparés pour des dispositifs de reproduction sonore (17, 20),
       et comportant une entrée de signaux de commande (100) qui est couplée avec au moins un dispositif de commande externe (12, 13) qui envoie des signaux de commande à un processeur de commande interne (10) qui se trouve dans le processeur de son (1), qui commande le mode de fonctionnement du processeur de son (1), qui dépend du type de son concerné et qui produit des mélodies constituant un indicatif ou des signaux acoustiques d'identification ou, au moyen d'une synthèse de la parole, des indications ou des demandes concernant l'utilisation,
        caractérisé en ce que
    l'entrée de commande (100) est, pour la production des informations de service, couplée avec une source interne de signaux audio (27) qui produit, au moyen des signaux de commande qui sont envoyés sur l'entrée de commande (100), d'autres signaux audio qui sont envoyés aux dispositifs de reproduction sonore (17, 20) et/ou à d'autres dispositifs de reproduction sonore (23, 35), processeur dans lequel
    les autres signaux audio de la source interne de signaux audio (27) sont envoyés, au moyen d'un format de données approprié, soit par l'intermédiaire de l'entrée de commande (100), soit à partir d'un dispositif de mémoire interne (28) et
    le débit de données de la séquence de données se trouvant dans la source interne de signaux audio (27) est comprimé dans le temps et/ou interpolé par rapport au débit de données des signaux de commande envoyés à l'entrée de commande (100).
  2. Processeur de son numérique selon la revendication 1, caractérisé en ce que la source interne de signaux audio (27) contient un synthétiseur qui compose les autres signaux audio à partir de composants de signal mémorisés dont la succession dans le temps est fixée par un microprogramme qui est activé par le signal de commande envoyé à l'entrée de commande (100).
  3. Processeur de son numérique selon la revendication 1, caractérisé en ce que le synthétiseur est réalisé sous la forme d'un synthétiseur de la parole.
  4. Processeur de son numérique selon la revendication 3, caractérisé en ce que le synthétiseur est commandé par des signaux de commande qui sont associés à des signes alphanumériques qui sont contenus dans un signal complexe de télévision en couleurs ou sur un écran d'un ordinateur personnel en tant qu'information de texte.
  5. Processeur de son numérique selon la revendication 1, caractérisé en ce que, au moyen de la source interne de signaux audio (27), on délivre des indications et/ou des demandes sous une forme sonore et/ou textuelle et/ou visuelle.
  6. Processeur de son numérique selon la revendication 5, caractérisé en ce que les indications et/ou les demandes peuvent être choisies et/ou échangées.
  7. Processeur de son numérique selon la revendication 6, caractérisé en ce que les indications et les demandes sont délivrées par la coopération du processeur de son numérique (1) avec un ordinateur personnel (13), l'ordinateur personnel étant couplé, par l'intermédiaire d'un bus de commande externe (11), avec l'entrée de commande (100) dû processeur de son numérique (1).
EP97106519A 1997-04-19 1997-04-19 Processeur numérique du son Expired - Lifetime EP0873041B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE59710047T DE59710047D1 (de) 1997-04-19 1997-04-19 Digitaler Tonprozessor
EP97106519A EP0873041B1 (fr) 1997-04-19 1997-04-19 Processeur numérique du son
US09/061,465 US6141646A (en) 1997-04-19 1998-04-16 Digital sound processor for processing multiple standard sound signals and capable of generating additional audio signals
JP10962498A JP4145989B2 (ja) 1997-04-19 1998-04-20 デジタル音響プロセッサ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97106519A EP0873041B1 (fr) 1997-04-19 1997-04-19 Processeur numérique du son

Publications (2)

Publication Number Publication Date
EP0873041A1 EP0873041A1 (fr) 1998-10-21
EP0873041B1 true EP0873041B1 (fr) 2003-05-07

Family

ID=8226709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106519A Expired - Lifetime EP0873041B1 (fr) 1997-04-19 1997-04-19 Processeur numérique du son

Country Status (4)

Country Link
US (1) US6141646A (fr)
EP (1) EP0873041B1 (fr)
JP (1) JP4145989B2 (fr)
DE (1) DE59710047D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0975158B1 (fr) * 1998-07-21 2008-09-17 Micronas GmbH Circuit de sélection des sources audio
JP4137706B2 (ja) 2003-06-06 2008-08-20 三菱電機株式会社 音声データ処理回路および音声データ処理方法
US20090132585A1 (en) * 2007-11-19 2009-05-21 James Tanis Instructional lesson customization via multi-media data acquisition and destructive file merging
US9307426B2 (en) 2008-06-13 2016-04-05 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for testing mobile terminals in an OFDM system
DE102010001548A1 (de) * 2009-11-18 2011-05-19 Robert Bosch Gmbh Schaltungsanordnung für einen Empfänger

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04284725A (ja) * 1991-03-14 1992-10-09 Pioneer Electron Corp Ｒｄｓ受信機
US5524051A (en) * 1994-04-06 1996-06-04 Command Audio Corporation Method and system for audio information dissemination using various modes of transmission
US5592588A (en) * 1994-05-10 1997-01-07 Apple Computer, Inc. Method and apparatus for object-oriented digital audio signal processing using a chain of sound objects
DE19503414A1 (de) * 1995-02-03 1996-08-08 Bosch Gmbh Robert Einrichtung zur Ausgabe von empfangenen digital codierten Verkehrsmeldungen
DE19513005A1 (de) * 1995-03-08 1996-09-12 Technotrend Systemtechnik Gmbh Einrichtung zum Hörfunkempfang und zur Anzeige und Verwertung von Informationen aus dem Hörfunk
JPH08263094A (ja) * 1995-03-10 1996-10-11 Winbond Electron Corp メロディを混合した音声を発生する合成器
DE19527185A1 (de) * 1995-07-26 1997-01-30 Philips Patentverwaltung RDS-TMC-Rundfunkempfänger

Also Published As

Publication number Publication date
EP0873041A1 (fr) 1998-10-21
US6141646A (en) 2000-10-31
JP4145989B2 (ja) 2008-09-03
JPH1152960A (ja) 1999-02-26
DE59710047D1 (de) 2003-06-12

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