AES3 – S/P-DIF DIGITAL AUDIO FORMAT AND SAMPLING RATE CONVERTER
SAFETY INSTRUCTIONS General instructions To reduce the risk of fire or electrical shock, do not expose this appliance to rain or moisture, direct sunlight or excessive heat from sources such as radiators or spotlights. No user serviceable parts are inside. Repair and maintenance must be carried out by qualified personnel authorized by MUTEC GmbH! The unit has been designed for operation in a standard domestic environment.
CONTENT INTRODUCTION General Function Description . . . . . . . . . . . . . . . . . 7 MC-6 Features . . . . . . . . . . . . . . . . . . . . . . . . . 7 MC-6 Applications . . . . . . . . . . . . . . . . . . . . . . . 7 Peripheral MUTEC Products . . . . . . . . . . . . . . . . . . 8 CONTROL ELEMENTS AND TERMINALS MC-6 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . 9 MC-6 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . 9 INSTALLATION Content of the Box . . . . . . . . . . . . . . . .
Bidirectional Format Conversion between AES3id and S/P-DIF coaxial . . . . . . . . . . . . . . . . . . 20 Bidirectional Format Conversion between S/P-DIF optical and S/P-DIF optical . . . . . . . . . . . . . . 20 Bidirectional Format and Sampling Rate Conversion between AES3 and AES3id . . . . . . . . . . . . . . . . . . . . . . . . 20 Bidirectional Format and Sampling Rate Conversion between AES3 and S/P-DIF optical . . . . . . . . . . . . . . . . . . . .
! INTRODUCTION Thank you very much for purchasing MC-6, Digital Audio Format and Sampling Rate Converter, from MUTEC! General Function Description The MC-6 is an extremely flexible, high-performance digital audio format and sampling rate converter for AES3, AES3id and S/P-DIF. All digital audio signals can be processed with sampling rates up to 192.
! " ! Peripheral MUTEC Products Reference Clocks and Master Clocks for Synchronization: iCLOCK + iCLOCKdp iCLOCK and iCLOCKdp are synchronizable, high-precision clock generators which are designed to be the reference in digital audio and video studios as well as broadcast and television stations. For further details please visit: www.iCLOCK-NET.
! CONTROL ELEMENTS AND TERMINALS MC-6 Front Panel 1 2 3 4 4 5 6 7 1 POWER This red LED lights up when the unit is switched on with the rear panel POWER switch. 2 MENU The push-button selects one of the available function menus. Refer to the OPERATIONS chapter for more information. 3 SELECT Use this push-button to select a function within a specific function menu.
! ! 4 AES3 IN This AES/EBU input can receive a balanced digital AES3 or AES11 signal in compliance with AES3 –1992 (R1997) or AES11–1997/2003. The input impedance is 110 Ω (XLR connector, female).
! INSTALLATION Content of the Box The unit was packed carefully. Nevertheless we recommend to check the content directly after opening the package: ! Before Powering Up 1 x MC-6 1 x Power cable 4 x Rubber feet 1 x Manual 1 x Registration card The condition of the packaging material and the device should be checked carefully additionally.
! ! Additionally, you should make sure that the Word Clock input to be connected to the MC-6’s output have a 75 Ω terminating resistor! Most Word Clock inputs allow for enabling/disabling the termination with a so-called »termination-switch«, which may be located on the outside or inside of the device. For devices which have no termination of the Word Clock input, e.g.
! GENERAL OPERATION Selecting Function Menus and setting Functions The device is fully operated using the two toggle switches at the front panel. 1 Switching the MENU key toggles between different basic function menus. 2 Switching the SELECT key activtes individual functions within one function menu.
! OPERATING THE MC-6 MODE / AUDIO IN + REFERENCE Menus These both menus are offering access to the whole functionality of the MC-6. The »MODE« menu in combination with the »AUDIO IN« menu are offering generally all available conversion modes together with the corresponding digital audio formats. The system makes sure that only useful combinations of conversion modes and proper audio formats are accessable.
! Unidirectional Format Conversion from: AES3 to AES3id, S/P-DIF optical + coaxial, AES3 UNI-DIR AES3 WCLK AES3 32.0 BI-DIR AES3id AES11 AES3id 44.1 96.0 176.4 SRC S/P-DIF op S/P-DIF op 48.0 X-SRC S/P-DIF co S/P-DIF co 88.2 192.0 MODE ! Why a Clock Reference for unidirectional Conversion without SRC? To allow for e.g.
! Unidirectional Format Conversion from: S/P-DIF coaxial to AES3, AES3id, S/P-DIF optical + coaxial UNI-DIR AES3 WCLK AES3 32.0 BI-DIR AES3id AES11 AES3id 44.1 96.0 176.4 SRC S/P-DIF op S/P-DIF op 48.0 X-SRC S/P-DIF co S/P-DIF co 88.2 192.
Unidirectional Format with Sampling Rate Conversion from: AES3id to AES3, S/P-DIF optical + coaxial, AES3id UNI-DIR AES3 WCLK AES3 32.0 BI-DIR AES3id AES11 AES3id 44.1 96.0 176.4 SRC S/P-DIF op S/P-DIF op 48.0 X-SRC S/P-DIF co S/P-DIF co 88.2 192.
Bidirectional Format Conversion between AES3 and AES3id UNI-DIR AES3 WCLK AES3 32.0 BI-DIR AES3id AES11 AES3id 44.1 SRC S/P-DIF op S/P-DIF op 48.0 X-SRC S/P-DIF co S/P-DIF co 88.2 96.0 176.4 192.0 MODE AUDIO IN REFERENCE This setting is a special function of your MC-6! It allows to receive an AES3 signal and an AES3id signal simultaneously.
Bidirectional Format Conversion between AES3id and S/P-DIF optical UNI-DIR AES3 WCLK AES3 32.0 BI-DIR AES3id AES11 AES3id 44.1 96.0 176.4 SRC S/P-DIF op S/P-DIF op 48.0 X-SRC S/P-DIF co S/P-DIF co 88.2 192.0 MODE AUDIO IN REFERENCE This setting allows to receive an AES3id signal and a S/P-DIF optical signal simultaneously for bidirectional format conversion.
conversion. The sampling rate of the outputs now depends on the clock rate of the reference clock signal, which is selected in the »REFERENCE« menu. The example on page 20 shows Word Clock (WCLK) selected as clock reference. In this mode, the following clock references are available for synchronization of the internal SRCs: WCLK, 25.0kHz – 200.0kHz, SCLK 11.2896MHz + 12.288MHz AES11, 25.0kHz – 200.
Bi-directional Format and Sampling Rate Conversion between AES3id and S/P-DIF coaxial UNI-DIR AES3 WCLK AES3 32.0 BI-DIR AES3id AES11 AES3id 44.1 96.0 176.4 SRC S/P-DIF op S/P-DIF op 48.0 X-SRC S/P-DIF co S/P-DIF co 88.2 192.
Effects Processor 44.1kHz Input: AES3id 44.1kHz 1. PLL: Clock Extraction 44.1kHz 1. SRC: Clock Conversion 44.1kHz m 48.0kHz Clock 44.1kHz Output: AES3id 44.1kHz Output: AES3 48.0kHz Clock 48.0kHz 2. SRC: Clock Conversion 44.1kHz k 48.0kHz 2. PLL: Clock Extraction 48.0kHz This setting allows to receive an AES3 signal and an AES3id simultaneously.
X-SRC Mode between AES3id and S/P-DIF optical UNI-DIR AES3 WCLK AES3 32.0 BI-DIR AES3id AES11 AES3id 44.1 96.0 176.4 SRC S/P-DIF op S/P-DIF op 48.0 X-SRC S/P-DIF co S/P-DIF co 88.2 192.0 MODE AUDIO IN REFERENCE This setting allows to receive an AES3id and S/P-DIF optical signal simultaneously for bidirectional fomat and sampling rate conversion using the X-SRC mode.
STATUS This area displays different system conditions of your MC-6. There is no access for changing settings. »LOCK« (2x) Doing unidirectional format conversions or bidirectional format conversions with SRC, the first »LOCK« LED above lights when the internal PLL circuit has detected the incoming digital audio signal or clock reference signal as valid.
The following basis reference clock rates are supported and will be analyzed: These indications are only available if the internal PLL circuit is locked stably to the external reference signal and the corresponding blue LOCK LED lights permanently. Word Clock Rates 32.0kHz 44.1kHz 176.4kHz 192.0kHz 48.0kHz 88.2kHz 96.0kHz Super Clock Rates 11.2896MHz 12.
! APPENDIX Pin Assignment of the Connectors Mains 3 2 1 1 2 3 Neutral (blue; USA: white) Protective earth (green/yellow; USA: green) Live, phase (brown; USA: black) AES/EBU, XLR, Input 2 AES/EBU XLR Output 1 1 3 1 2 3 2 3 Audio ground a conductor (hot / +) b conductor (cold / -) BNC In-/Output for Word Clock, Super Clock, AES3id 1 2 3 Ground a conductor (hot / +) b conductor (cold / -) S/PDIF, O
% Switching-off the Termination of the Word Clock Input CAUTION! Disconnect the unit from the mains before opening! Remount the aluminium cover thoroughly before you attempt to operate the unit! When MC-6 is shipped, the BNC-based Word Clock input connector is terminated internally with 75 Ω. Therefore, one jumper is put on two pins - Position 1 - of the 3-pin socket JP1.
AES11 REFERENCE INPUT Interface 1 x XLR female, transformer balanced, input impedance 110 Ω, 200 mV – 7.0 V Format, Resolution AES11 – 1997/2003, AES3 – 1992/2003, 16 – 24 bits Lock Range 25.0kHz to 200.0kHz AES3 AUDIO OUTPUT Interface 1 x XLR male, transformer balanced, 3.5Vpp @ 110Ω, output impedance 110Ω, buffered Format, Resolution AES3 – 1992/2003, AES11 – 1997/2003, 24 bits Transmitted Clock Rates 25.0kHz to 200.0kHz AES3id AUDIO OUTPUT Interface 1 x BNC, 1.
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