WO1991014317A1 - Mehrkanalige vorrichtung zum digitalen aufzeichnen und wiedergeben von audiosignalen - Google Patents
Mehrkanalige vorrichtung zum digitalen aufzeichnen und wiedergeben von audiosignalen Download PDFInfo
- Publication number
- WO1991014317A1 WO1991014317A1 PCT/DE1991/000213 DE9100213W WO9114317A1 WO 1991014317 A1 WO1991014317 A1 WO 1991014317A1 DE 9100213 W DE9100213 W DE 9100213W WO 9114317 A1 WO9114317 A1 WO 9114317A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- system bus
- digital
- memory
- data
- recording
- Prior art date
Links
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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/036—Insert-editing
Definitions
- Multi-channel device for digitally recording and reproducing audio signals
- the invention relates to a multi-channel device for digitally recording and reproducing audio signals with a plurality of digital or analog inputs and outputs and with one or more digital memories.
- tape machines exist in analog and digital technology for recording and reproducing audio signals with multiple digital or analog inputs and outputs and a fixed number of channels.
- a bidirectional interface circuit which has inputs and outputs, via a group system bus carrying parallel data is connected to one or more memory modules connected in parallel, a main controller which can be controlled by means of an operating unit being coupled to the system bus and the memory module (s), and that each memory module has at least one digital memory with exchangeable memory medium and at least one digital buffer memory in this way has that the audio signals to be stored are kept ready for their processing or during the exchange of the storage medium in the buffer memory.
- An approximately filled medium can be exchanged for an empty medium without interrupting the recording, since the audio data arrive at the input of the buffer memory at a lower rate than can be written into the digital memory with exchangeable storage medium at the output of the buffer memory, so that the available recording time and, analogously in the reverse direction of data flow, the playback time is limited by the properties of the device
- the main controller is expediently connected to the memory modules via a communication ring carrying control signals. It is also advisable to add a separate controller to each memory module, which independently initiates the functions of the memory module triggered by the main controller and monitors their execution
- the number of channels required for the recording can be expanded as desired by adding a corresponding number of memory modules to the device, which are connected in parallel for the audio signals to the system bus and, moreover : controlled by the communication loop of the main control are.
- Each memory module can then be designed as an insert which can be inserted into a contact strip inside the device. It is understood that the contact bar with the system bus connected is.
- control unit has a remote control, the buttons of which have a mechanical stroke and are assigned to the functions recording, playback and stop, among other things.
- a display and a device for pointing to display elements of the display to the control unit, wherein the functions of the main control can be assigned to a location or a sequence on the display or a key sequence of the remote control in the control unit.
- Exchangeable data media such as magneto-optical, optical or magnetic disk storage or tape cassette storage can be considered as archive storage
- serial data formats with their own or externally specified clock rate at their inputs and, on the other hand, parallel data in groups with a uniform, internal data format on the system bus output and / or read from the system bus.
- format converters are also expediently designed as inserts and can be plugged into a contact strip connected to the system bus.
- Interventions in the organization of the device can be carried out particularly easily when assemblies of the controller and assemblies of the interface circuit are designed as multiply programmable logic arrays, the main controller preferably programming the multiply programmable logic arrays each time the device is switched on.
- controller and the main control circuit consist of a network of subcontrollers, the network connections between the individual subcontrollers having a uniform signal and data format and the Data exchange between the subcontrollers is serial.
- the device essentially consists of an interface unit 1, one or more memory modules 3, 30, a main controller 4 and an operating unit 6.
- a system bus 2 connects the interface unit to the memory modules via Merrfac ⁇ eitongen 32,34,36 3, 30.
- the main controller 4 controls the data flows of the system bus 2 during the various functional sequences and is connected to the system bus 2 via a multiple line 38. It also controls the functional sequences of the memory modules 3, 30 and is connected to the memory modules 3, 30 in series via a communication ring 5 carrying control signals.
- the main controller 4 has a system subcontroller 27 and a master subcontroller 28, both of which are connected to the communication ring 5, but the system subcontroller is additionally connected to the system bus 2 via the multiple line 38.
- the memory modules 3, 30 are constructed in the same way, so that the description of the memory module 3 suffices.
- the memory module 3 consists of a controller 7 and one or more memory units, which are designated by 8 and each of which is connected to the controller 7 via a multiple line 42, 44, 46.
- the storage units 8 are designed as two magnetic disk drives 24, 25 and a magneto-optical drive 26 with a removable disk as a data carrier 9.
- the storage modules 3, 30 are designed as inserts, each of which can be arranged in rows on a contact strip 29 of the system bus 2 and the communication ring 5 are housed.
- the controller 7 consists of a symmetrical network of subcontrollers 18 ... 23.
- the network connections between the individual subcontrollers have a uniform signal and data format in accordance with the communication ring 5, with the data being exchanged serially.
- the I / O subcontroller 18 is connected to the system bus 2 via a multiple line 52.
- Each of the RAM subcontrollers 19, 20 contains a local buffer memory.
- the RAM subcontroller 20 is connected to the SCSI subcontroller 23, which in turn is connected to the magnetic disk memory 25.
- the RAM subcontroller 19 is connected to the SCSI subcontroller 21, which in turn is connected to the magnetic disk memory 24.
- the SCSI subcontroller 22 is connected to both RAM subcontrollers 19, 20 and to the magneto-optical disk memory 26. All SCSI subcontrollers 21, 22, 23 are included in the communication ring 5.
- the interface unit 1 houses bidirectional format converters 15, 16, 17 connected in parallel, each of which is connected to the system bus 2 via slots by means of the multiple lines 32, 34, 36.
- Each format converter 15, 16, 17 has input and / or output sockets 14 which allow the user to connect external signal sources and / or receivers to the device.
- the control unit 6 is included in the communication ring 5 and has a personal computer 10 with a graphic display 12 and a remote control 11, both of which are connected to the communication ring 5 by means of a controller 13.
- the buttons on the remote control 11 have a mechanical stroke and are assigned, among other things, to the functions recording, playback and stop.
- the personal computer with a graphic display graphically represents functional states, sequences and calls of the device and has a device for pointing to display elements of the display 12, which is designed here as a trackball 13.
- the function of the device in the operating state is described in detail below.
- the interface unit 1 accommodates format converters 15 which can be combined in any way and which enable the device to be connected to devices customary in studio technology (mixing desks, tape machines, audio processors, etc.).
- serial data streams arriving at the inputs of the format converters 15, 16, 17 are read in with a selectable bit rate, and the bits that carry audio information and additional control bits are differentiated, ordered and supplied to the system bus 2 as parallel data words.
- the system bus 2 enables the device to be expanded at any time by additional inputs and outputs by the possibility of arranging the format converters 15, 16, 17 designed as inserts, which are connected to the system bus 2 by the multiple lines 32, 34, 36 and the contact strip 29.
- the system bus 2 also enables the device to be expanded at any time by additional recording and playback capacity, both with regard to the audio channels provided and with regard to the recording time made available, by virtue of the ability to attach the memory modules 3 designed as inserts, which are connected to the system bus 2 by the Multiple line 52 and the contact strip 29 are connected.
- the system bus 2 transports audio data words between the format converters 15, 16, 17 themselves, between the format converters 15, 16, 17 and the memory modules 3 and vice versa, and between the memory modules 3 themselves.
- the process of data transport on the system bus 2 is coordinated by the main control 4.
- one position within this sequence corresponds to a specific audio channel.
- a channel number is assigned to each input or output of the format converters 15, 16, 17 and each channel of the memory modules 3.
- the main controller 4 can change the sequence and thus influences the channel assignment within the device. Simple reprogramming makes the otherwise very time-consuming rewiring of the connected devices superfluous.
- the main controller 4 converts the functions of the device determined by the operator by means of the operating unit 6 into corresponding data flow sequences within the device.
- the memory modules 3 and the control unit 6 are connected to the main controller 4 by a communication ring 5.
- the commands of the user entered on the operating unit 6 are forwarded to the main controller 4 by means of the communication ring 5, which converts these commands into control sequences and in turn forwards them to the memory modules 3 by means of the communication ring 5.
- the memory modules 3 consist of an independently operating controller 7 and one or more memory units 8.
- the controller 7 can access all the memory units 8 belonging to the memory module 3 at the same time.
- Each controller 7 receives and sends parallel data words from the system bus 2 via the I / O subcontroller 18 received data words to the two RAM subcontrollers 19, 20 functioning as local buffer memories and at a later point in time stores them in one of the memory units 8 by means of the SCSI subcontrollers 21, 22, 23.
- the controller 7 retrieves the data words stored in the storage units 8 into the local buffer memory of the RAM subcontrollers 19, 20 by means of the SCSI subcontrollers 21... 23 in order to use them later at the request of the main controller 4 by means of the Send I / O subcontrollers 18 to the system bus 2.
- the local buffer memories of the RAM subcontrollers 19, 20 are designed such that data flows from or to the memory units 8 can take place simultaneously and always with the maximum data flow rate determined by the memory units 8.
- the memory modules 3 are designed in accordance with the system bus 2 electrically, functionally and mechanically so that a row of the memory modules 3 in the device for the purpose of expansion with regard to the playing time and the number of channels provided to the device is possible at any time
- Each memory module 3 is responsible for recording 8 audio channels each.
- the audio information received by the I / O subcontroller 18 and temporarily stored in the RAM subcontrollers 19, 20 is initially stored temporarily in the magnetic disk memories 24, 25. This means that they are immediately available for playback. If the user wishes to listen to a specific passage after a recording has been made, the corresponding audio information is retrieved from the magnetic disk memories 24, 25 into the RAM subcontrollers 19, 20 and by means of the I / O subcontroller 18, the system bus 2 and the format converter 15, 16, 17 made audible.
- the access times of the magnetic disk storage 24, 25 are so short that they are not perceptible to the user, ie he can directly access any point of a successful recording reach instantly.
- the audio data of a new recording temporarily stored in the magnetic disk memories 24, 25 are read out again, buffered by the RAM subcontrollers 19, 20 in order to be finally written to the data carrier 9 by means of the optical disk memory 26 .
- the recording of the device can thus be removed and can be archived.
- all the audio information is stored twice - on the one hand in the magnetic disk memories 24, 25, and on the other hand in the optical disk memory 26.
- the data of the new recording as well as that of the recording to be improved are not changed until the user confirms that the new recording was successful.
- the cross-fades to the improved passage and back are simulated for the user. He can subsequently change the times and the duration of the cross-fades. If he rejects the new recording, the data of the passage to be improved is copied from the optical disk storage back into the magnetic disk storage and the new recording is thus reversed. If he confirms the new recording with the selected transitions as successful, the data of the new recording from the magnetic disk storage including the corresponding one Copies of transitions into the optical disk storage. As a result, overdubbing is completely risk-free by means of the disclosed device.
- the data medium 9 can also be changed while the recording is in progress.
- the magnetic disk stores 24, 25 act as intermediate buffers with first-in-first-out characteristics.
- the audio data are written directly to the optical disk memory 26 until the data carrier 9 is full. It can now be exchanged for an empty one.
- the audio data arriving during the change are now temporarily stored on the magnetic disk memories 24, 25 in order then to be written onto the new data carrier 9 in the correct chronological order.
- fewer audio data arrive at the input of the intermediate buffer formed by the magnetic disk memories 24, 25 than are written to the magneto-optical disk memory 26 at the output.
- the intermediate buffer is empty again within a sufficient time and the audio data can be written directly onto the optical disk memory 26 until the new data carrier 9 is full the next time.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9116857U DE9116857U1 (de) | 1990-03-13 | 1991-03-12 | Mehrkanalige Vorrichtung zum digitalen Aufzeichnen und Wiedergeben von Audiosignalen |
CA002058303A CA2058303A1 (en) | 1990-03-13 | 1991-03-12 | Multi-channel device for the digital recording and playback of audio-signals |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904008081 DE4008081A1 (de) | 1990-03-13 | 1990-03-13 | Mehrkanalige vorrichtung zum digitalen aufzeichnen und wiedergeben von audiosignalen |
DEP4008081.1 | 1990-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991014317A1 true WO1991014317A1 (de) | 1991-09-19 |
Family
ID=6402148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1991/000213 WO1991014317A1 (de) | 1990-03-13 | 1991-03-12 | Mehrkanalige vorrichtung zum digitalen aufzeichnen und wiedergeben von audiosignalen |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0471814A1 (de) |
JP (1) | JPH04505984A (de) |
AU (1) | AU639769B2 (de) |
CA (1) | CA2058303A1 (de) |
DE (2) | DE4008081A1 (de) |
WO (1) | WO1991014317A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992022983A2 (en) * | 1991-06-11 | 1992-12-23 | Browne H Lee | Large capacity, random access, multi-source recorder player |
US7730512B2 (en) | 1991-01-07 | 2010-06-01 | Acacia Media Technologies Corporation | Audio and video transmission and receiving system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0287619A1 (de) * | 1986-10-16 | 1988-10-26 | BURTON, David | Regelsystem |
JP2840755B2 (ja) * | 1989-04-27 | 1998-12-24 | ソニー株式会社 | プログラム送出装置 |
DE4010324A1 (de) * | 1990-03-30 | 1991-10-02 | Mario Palmisano | Verfahren zur dynamischen, zeitgenauen korrektur von analogen tonsignalen |
-
1990
- 1990-03-13 DE DE19904008081 patent/DE4008081A1/de not_active Withdrawn
-
1991
- 1991-03-12 CA CA002058303A patent/CA2058303A1/en not_active Abandoned
- 1991-03-12 AU AU74431/91A patent/AU639769B2/en not_active Ceased
- 1991-03-12 JP JP50515891A patent/JPH04505984A/ja active Pending
- 1991-03-12 WO PCT/DE1991/000213 patent/WO1991014317A1/de not_active Application Discontinuation
- 1991-03-12 DE DE9116857U patent/DE9116857U1/de not_active Expired - Lifetime
- 1991-03-12 EP EP19910905116 patent/EP0471814A1/de not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
AES PREPRINT 2317(A5), 80TH CONVENTION, 4-5 March 1986, Montreux, CH., A. WEISSER et al., "Description of an Audio Editing System Using Computer Magnetic Hard Disk", pages 1-16. * |
TECHNISCHE MITTEILUNGEN DES RFZ, Vol. 34, No. 1, March 1990, (Berlin, DD), W. HOEG et al., "S2000: Zur Einordnung des Neuen Tonstudiosystems in die Generationsentwicklung der Tonstudio-technik", pages 1-8. * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7730512B2 (en) | 1991-01-07 | 2010-06-01 | Acacia Media Technologies Corporation | Audio and video transmission and receiving system |
US7818773B2 (en) | 1991-01-07 | 2010-10-19 | Acacia Media Technologies Corporation | Audio and video transmission and receiving system |
WO1992022983A2 (en) * | 1991-06-11 | 1992-12-23 | Browne H Lee | Large capacity, random access, multi-source recorder player |
WO1992022983A3 (en) * | 1991-06-11 | 1993-04-15 | H Lee Browne | Large capacity, random access, multi-source recorder player |
Also Published As
Publication number | Publication date |
---|---|
JPH04505984A (ja) | 1992-10-15 |
DE4008081A1 (de) | 1991-09-19 |
AU639769B2 (en) | 1993-08-05 |
EP0471814A1 (de) | 1992-02-26 |
DE9116857U1 (de) | 1994-06-23 |
CA2058303A1 (en) | 1991-09-14 |
AU7443191A (en) | 1991-10-10 |
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