EP0364526B1 - Pupitre de commande pour signaux audio - Google Patents

Pupitre de commande pour signaux audio Download PDF

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Publication number
EP0364526B1
EP0364526B1 EP89903121A EP89903121A EP0364526B1 EP 0364526 B1 EP0364526 B1 EP 0364526B1 EP 89903121 A EP89903121 A EP 89903121A EP 89903121 A EP89903121 A EP 89903121A EP 0364526 B1 EP0364526 B1 EP 0364526B1
Authority
EP
European Patent Office
Prior art keywords
digital
analog
signal
sum
signals
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
EP89903121A
Other languages
German (de)
English (en)
Other versions
EP0364526A1 (fr
Inventor
Bertram Bittel
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.)
Werbung Im Suedwestfunk GmbH
Original Assignee
Werbung Im Suedwestfunk GmbH
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 Werbung Im Suedwestfunk GmbH filed Critical Werbung Im Suedwestfunk GmbH
Priority to AT89903121T priority Critical patent/ATE92695T1/de
Publication of EP0364526A1 publication Critical patent/EP0364526A1/fr
Application granted granted Critical
Publication of EP0364526B1 publication Critical patent/EP0364526B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
    • H04H60/04—Studio equipment; Interconnection of studios

Definitions

  • the invention relates to a control panel for sound signals according to the preamble of the claim.
  • a control desk is known (brochures "Studer 900 Professional Control Technology PI 3/82 D / E” from Studer International AG, Regensdorf, Switzerland).
  • the object of the invention is to provide a control desk which, with an unchanged operator philosophy, enables both an analog and a digital transmission signal to be generated without the quality of the input signals coming from digital audio signal sources being converted by digital / analog conversion and subsequent analog / To affect digital conversion and without claiming an unacceptably high technical effort.
  • a hybrid technique is used in the control desk according to the invention, the input signals originating from digital audio signal sources first being summed, and a further digital signal which corresponds to the sum of the processed analog input signals of the control desk being added to this digital sum signal.
  • the signal resulting from this represents the digital transmission signal.
  • a further analog signal is added to the sum of the processed analog input signals, which is obtained from the sum of the processed digital input signals.
  • the resulting signal represents the analog transmission signal.
  • Both the analog and the digital transmission signal contain the identical modulation.
  • the surface of the control desk is practically unchanged and is only replaced by level controls for those from digital audio signal sources originating input signals expanded.
  • analog level controls that are no longer required can be replaced by the level controls for the digital audio signal sources.
  • the fact that both a digital and an analog transmission signal are generated in parallel with the control desk according to the invention has the further advantage that interference in the digital part does not lead to a transmission failure.
  • each digital audio signal source has in addition to its digital signal output also a corresponding analog signal output, which are connected for reserve purposes with analog inputs of the control desk, so that the signals originating from digital signal sources are processed in the event of an accident via the analog part of the control desk according to the invention and into the analogue Broadcast signal can be inserted. Since digital line transmitters have an additional input for an analog transmission signal for reserve reasons, the transmission on the purely digital transmission link is also ensured in the event of an accident.
  • the control desk illustrated in the drawing has an analog part 10 illustrated on the left half of the drawing and a digital part 20 shown on the right half of the drawing. Both parts 10 and 20 are separated from one another by a broken line for better clarity Cut.
  • the analog part 10 comprises a processing section 11, which is fed a variety of analog input signals A1 to A n-1 .
  • the processing section 11 there are level controls, filters, switching elements, control devices and the like in the usual way.
  • a processed sum signal of the analog input signals A1 to A n-1 is generated. This sum signal is fed to both an analog / digital converter 12 and a summing element 13.
  • the output signal D n of the analog / digital converter 12 is fed to the digital part 20, from which an analog signal A n is fed to the second input of the summing element 13.
  • the output signal of the summing element 13 represents the analog transmission signal, as will be explained in more detail below.
  • the digital part 20 has a processing section 21, which is supplied with a plurality of digital input signals D 1 to D n-1 .
  • These digital audio signals usually come from digital audio signal sources, such as CD players, DAT recorders or digital signal lines (eg from the Bundespost).
  • the digital processing section 21 consists only of level controls, since when signals from digital audio signal sources are fed in, no further processing, such as filtering, is required except for leveling. If necessary, the processing section 21 can of course also include digital filters, switching devices and the like.
  • the processing section 21 further comprises control devices, e.g. Preview button, digital level indicator and much more.
  • control devices e.g. Preview button, digital level indicator and much more.
  • the processing surface of the processing section 21 is inserted into the processing surface of the processing section 11, so that the operating philosophy of analogue control desks familiar to the sound engineer is available.
  • control desk With the help of the control desk according to the invention, a very cost-effective, quick and flexible entry into digital radio on the studio side is made possible without restricting the quality.
  • the need to purchase a large, expensive control desk using purely digital technology is eliminated, as is the need to retrain the sound engineers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

Dans un pupitre de commande analogique-numérique de signaux audio, les signaux des canaux analogiques sont totalisés, éventuellement en même temps qu'ils sont traités. Pour former le signal analogique d'émission, un autre signal de canal An formé par la somme des signaux des canaux numériques convertie en somme analogique est additionné à ladite somme des signaux des canaux analogiques. Un signal numérique Dn dérivé de la somme des signaux de canaux analogiques convertie en somme numérique est additionné à la somme des signaux des canaux numériques, ce qui permet d'obtenir un signal numérique d'émission à même teneur de modulation que le signal analogique d'émission.

Claims (1)

  1. Pupitre de commande pour signaux audio dans lequel
    - dans un élément de sommation analogique (11) une série de signaux analogiques de canaux A₁ à An-1 sont sommés, éventuellement en traitement simultané, et
    - dans un autre élément de sommation analogique (13), un autre signal de canal An est additionné à la somme des signaux analogiques de canaux A₁ à An-1, d'où il résulte un signal analogique d'émission,
       caractérisé en ce que
    - dans un convertisseur analogique/numérique (12) la somme des signaux analogiques de canaux A₁ à An-1 est convertie en un signal numérique Dn;
    - dans un élément d'addition numérique (21) plusieurs signaux numériques de canaux D₁ à Dn-1 sont sommés, éventuellement en traitement simultané;
    - dans un convertisseur numérique/analogique (22) la somme des signaux numériques de canaux D₁ à Dn-1 est convertie en un signal analogique, à partir duquel est formé le signal additionnel de canal An, et
    - dans un autre élément de sommation numérique (23), le signal numérique Dn obtenu à partir de la conversion de la comme des signaux analogiques de canaux A₁ à An-1 est additionné à la somme des signaux numériques de canaux D₁ à Dn-1, d'où il résulte un signal numérique d'émission qui présente le même contenu de modulation que le signal analogique d'émission.
EP89903121A 1988-03-17 1989-03-14 Pupitre de commande pour signaux audio Expired - Lifetime EP0364526B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89903121T ATE92695T1 (de) 1988-03-17 1989-03-14 Regiepult fuer tonsignale.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3808876 1988-03-17
DE3808876A DE3808876C1 (fr) 1988-03-17 1988-03-17

Publications (2)

Publication Number Publication Date
EP0364526A1 EP0364526A1 (fr) 1990-04-25
EP0364526B1 true EP0364526B1 (fr) 1993-08-04

Family

ID=6349930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89903121A Expired - Lifetime EP0364526B1 (fr) 1988-03-17 1989-03-14 Pupitre de commande pour signaux audio

Country Status (4)

Country Link
US (1) US5014341A (fr)
EP (1) EP0364526B1 (fr)
DE (2) DE3808876C1 (fr)
WO (1) WO1989008955A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5621806A (en) * 1992-02-14 1997-04-15 Texas Instruments Incorporated Apparatus and methods for determining the relative displacement of an object
GB2301003B (en) * 1995-05-19 2000-03-01 Sony Uk Ltd Audio mixing console
US5638112A (en) * 1995-08-07 1997-06-10 Zenith Electronics Corp. Hybrid analog/digital STB
US6373954B1 (en) * 1997-10-14 2002-04-16 Cirrus Logic, Inc. Single-chip audio circuitry, method, and systems using the same
JP2003527756A (ja) * 1998-05-18 2003-09-16 デジタル ハーモニー テクノロジーズ インコーポレイテッド 複合アナログ／ディジタルデータ伝送システム
US7058189B1 (en) * 2001-12-14 2006-06-06 Pixel Instruments Corp. Audio monitoring and conversion apparatus and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2565443B1 (fr) * 1984-05-29 1987-01-30 Cit Alcatel Procedes de diffusion et de reception de programmes sonores de haute qualite et dispositif de reception.
JPS62281626A (ja) * 1986-05-30 1987-12-07 Nippon Telegr & Teleph Corp <Ntt> デジタルデ−タ伝送方式
US4922536A (en) * 1988-11-14 1990-05-01 Massachusetts Institute Of Technology Digital audio transmission for use in studio, stage or field applications

Also Published As

Publication number Publication date
EP0364526A1 (fr) 1990-04-25
US5014341A (en) 1991-05-07
WO1989008955A1 (fr) 1989-09-21
DE58905139D1 (de) 1993-09-09
DE3808876C1 (fr) 1989-05-11

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