EP0873041A1 - Digitaler Tonprozessor - Google Patents
Digitaler Tonprozessor Download PDFInfo
- Publication number
- EP0873041A1 EP0873041A1 EP97106519A EP97106519A EP0873041A1 EP 0873041 A1 EP0873041 A1 EP 0873041A1 EP 97106519 A EP97106519 A EP 97106519A EP 97106519 A EP97106519 A EP 97106519A EP 0873041 A1 EP0873041 A1 EP 0873041A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sound processor
- signals
- control
- 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.)
- Granted
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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.
- Such sound processors are suitable for sound signals to process a wide variety of transmission standards for the entertainment sector, for example sound signals from a wide variety of television standards, satellite receivers, VCRs, traffic receivers, etc., but also audio signals 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, space, etc., set.
- control input in respective sound processor is coupled to an internal audio signal source which 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, which is supplied by means of a suitable data format via the external control lines, or are read out from an internal memory device.
- the storage device can also be a buffer memory in the internal control device, with which the data transfer from the external control device is usually decoupled in time.
- the decoupling with regard to the data rate and the clock systems and the digital processing protocol for detecting the readiness to send and receive is also called Handshake data transfer procedure "or short Handshake protocol ".
- the audio signals are composed of individual stored audio components which are called up by means of a microprogram.
- Individual audio components are Tone frequencies or signal sequences, such as noise, can be called in. Further information contained in the microprogram relates to the respective duration, amplitude or envelope of these individual audio modules.
- 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 prompts 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 forth.
- 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 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, its 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, however in particular also information that is supplied to it via an external control bus 11 are connected to the 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 via 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 mixed into 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.
- the internal Audio signal source 27 does not receive these signals from one of the externally connected ones Signal sources 4,5,6 received directly or in a coded form, but that the internal audio signal source 27 generates these signals on demand itself.
- a single command word on the control bus 11 is sufficient to give an acoustic signal or even trigger a synthesized speech information.
- a memory device 28 is required for this, in which the digitized Signal sequence is stored, the stored data individually or in groups are available.
- 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 effects one 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. For example, you can use it to create your own tone sequences in Connection to a personal computer connected as an external control device 13 be programmed.
- 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.
- Feeded 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.
- a 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.
- the internal audio signal source 27 generates special control signals which are led via the amplifier 30 to corresponding outputs 31. There they can serve, for example, as control signals for a multi-segment display Any signals to be reproduced can thus be called up from the memory device 28 by means of the audio signal source 27.
- This brief list shows that the invention can be advantageously used in many ways.
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)
Abstract
Description
Claims (9)
- Digitaler Tonprozessor (1) zur Verarbeitung von Multistandard-Tonsignalen, die als analoge oder digitale Signale eingangsseitig aus mindestens einer Signalquelle (4,5,6) den Tonprozessor (1) in Basisbandlage oder einer höheren Frequenzlage zugeführt sind und aus denen getrennte Ausgangssignale für Tonwiedergabeeinrichtungen (19,20) gebildet sind,mit einem Steuersignaleingang (100), der mit mindestens einer externen Steuereinrichtung (12,13) gekoppelt ist, die Steuersignale an einen im Tonprozessor (1) vorhandenen internen Steuerprozessor (10) sendet, der die vom jeweiligen Tonstandard abhängige Betriebsart des Tonprozessors (1) steuert,
dadurch gekennzeichnet, daßder Steuereingang (100) ferner im Tonprozessor (1) mit einer internen Audiosignalquelle (27) gekoppelt ist, die mittels der am Steuereingang (100) zugeführten Steuersignale weitere Audiosignale erzeugt, die den Tonwiedergabeeinrichtungen (17,20) und/oder weiteren Tonwiedergabeeinrichtungen (23,25) zugeführt sind. - Digitaler Tonprozessor (1) nach Anspruch 1, dadurch gekennzeichnet, daß die interne Audiosignalquelle (27) die weiteren Audiosignale aus einer Speichereinrichtung (28) als Datenfolge abruft.
- Digitaler Tonprozessor (1) nach Anspruch 2, dadurch gekennzeichnet, daß die Datenrate der Datenfolge in der internen Audiosignalquelle (27) zeitlich gegenüber der Datenrate der dem Steuereingang (100) zugeführten Steuersignale komprimiert und/oder interpoliert ist.
- Digitaler Tonprozessor nach Anspruch 1, dadurch gekennzeichnet, daß die interne Audiosignalquelle (27) einen Synthesizer enthält, der die weiteren Audiosignale aus gespeicherten Signalbausteinen zusammensetzt, deren zeitliche Abfolge durch ein Mikroprogramm festgelegt ist, das durch das am Steuereingang (100) zugeführte Steuersignal aktiviert ist.
- Digitaler Tonprozessor nach Anspruch 4, dadurch gekennzeichnet, daß der Synthesizer als ein Sprachsynthesizer ausgebildet ist.
- Digitaler Tonprozessor nach Anspruch 5, dadurch gekennzeichnet, daß der Synthesizer durch Steuersignale gesteuert ist, die alphanumerischen Zeichen zugeordnet sind, die in einem Farbfernsehsignalgemisch oder auf einem PC-Bildschirm als Textinformation enthalten sind.
- Digitaler Tonprozessor nach Anspruch 1, dadurch gekennzeichnet, daß durch die interne Audiosignalquelle (27) in klanglicher und/oder sprachlicher und/oder visueller Form Hinweise und/oder Aufforderungen ausgelöst werden.
- Digitaler Tonprozessor nach Anspruch 7, dadurch gekennzeichnet, daß die Hinweise und/oder Aufforderungen wählbar und austauschbar sind.
- Digitaler Tonprozessor nach Anspruch 8, dadurch gekennzeichnet, daß die Hinweise und Aufforderungen durch das Zusammenwirken des digitalen Tonprozessors (1) mit einem Personal-Computer (13) ausgelöst sind, wobei der Personal Computer über einen externen Steuerbus (11) mit dem Steuereingang (100) des digitalen Tonprozessors (1) verkoppelt ist.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97106519A EP0873041B1 (de) | 1997-04-19 | 1997-04-19 | Digitaler Tonprozessor |
DE59710047T DE59710047D1 (de) | 1997-04-19 | 1997-04-19 | Digitaler Tonprozessor |
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 (de) | 1997-04-19 | 1997-04-19 | Digitaler Tonprozessor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0873041A1 true EP0873041A1 (de) | 1998-10-21 |
EP0873041B1 EP0873041B1 (de) | 2003-05-07 |
Family
ID=8226709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97106519A Expired - Lifetime EP0873041B1 (de) | 1997-04-19 | 1997-04-19 | Digitaler Tonprozessor |
Country Status (4)
Country | Link |
---|---|
US (1) | US6141646A (de) |
EP (1) | EP0873041B1 (de) |
JP (1) | JP4145989B2 (de) |
DE (1) | DE59710047D1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7340070B2 (en) | 2003-06-06 | 2008-03-04 | Mitsubishi Denki Kabushiki Kaisha | Voice-data processing circuit and voice-data processing method |
WO2011061036A1 (de) | 2009-11-18 | 2011-05-26 | Robert Bosch Gmbh | Schaltungsanordnung für einen rundfunkempfänger mit digitaler signalverarbeitung |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE59814289D1 (de) * | 1998-07-21 | 2008-10-30 | Micronas Gmbh | Audioquellenauswahlschaltung |
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 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0503154A2 (de) * | 1991-03-14 | 1992-09-16 | Pioneer Electronic Corporation | RDS-Empfänger |
EP0725504A2 (de) * | 1995-02-03 | 1996-08-07 | Robert Bosch Gmbh | Radiodatenempfänger mit 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 |
EP0756258A1 (de) * | 1995-07-26 | 1997-01-29 | Philips Patentverwaltung GmbH | RDS-TMC-Rundfunkempfänger |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
-
1997
- 1997-04-19 DE DE59710047T patent/DE59710047D1/de not_active Expired - Lifetime
- 1997-04-19 EP EP97106519A patent/EP0873041B1/de not_active Expired - Lifetime
-
1998
- 1998-04-16 US US09/061,465 patent/US6141646A/en not_active Expired - Lifetime
- 1998-04-20 JP JP10962498A patent/JP4145989B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0503154A2 (de) * | 1991-03-14 | 1992-09-16 | Pioneer Electronic Corporation | RDS-Empfänger |
EP0725504A2 (de) * | 1995-02-03 | 1996-08-07 | Robert Bosch Gmbh | Radiodatenempfänger mit 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 |
EP0756258A1 (de) * | 1995-07-26 | 1997-01-29 | Philips Patentverwaltung GmbH | RDS-TMC-Rundfunkempfänger |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7340070B2 (en) | 2003-06-06 | 2008-03-04 | Mitsubishi Denki Kabushiki Kaisha | Voice-data processing circuit and voice-data processing method |
WO2011061036A1 (de) | 2009-11-18 | 2011-05-26 | Robert Bosch Gmbh | Schaltungsanordnung für einen rundfunkempfänger mit digitaler signalverarbeitung |
EP2502369A1 (de) * | 2009-11-18 | 2012-09-26 | Robert Bosch GmbH | Schaltungsanordnung für einen rundfunkempfänger mit digitaler signalverarbeitung |
Also Published As
Publication number | Publication date |
---|---|
EP0873041B1 (de) | 2003-05-07 |
JPH1152960A (ja) | 1999-02-26 |
DE59710047D1 (de) | 2003-06-12 |
US6141646A (en) | 2000-10-31 |
JP4145989B2 (ja) | 2008-09-03 |
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