ユーザーズマニュアル目次Product Overview33Formats3Functions3Syncing3Monitoring4Test Generator4Ease of Use4About this Manual5About Sample Rates5Contents6Step-by-Step Guide10Preliminaries10Step 1 – Selecting an Input11Connecting to a Single AES or SPDIF source11Connecting to a PCM SDIF-2 source11Connecting to a Dual AES Source12Connecting to a Quad AES source12Connecting to a DSD SDIF-2 source12Connecting to a DSD Quad source12Step 2 – Setting the Sync Source13Syncing to an External Wordclock13Syncing to an AES/EBU Reference14Step 3 - Setting a Conversion15Format Conversion15Sample Rate Conversion16Setting the Output Sample Rate16Setting the Output mode17Step 4 – Connecting the Outputs18Connecting a Single AES or SPDIF Output18Connecting the SDIF-2 Output18Connecting the Dual AES Outputs18Connecting the Quad AES or DSD Quad Outputs18Connecting the DSD SDIF-2 or DSD SDIF-3 Output18Step 5 – Reducing the Output Wordlength19Other Settings21Typical Applications22Converting a 24/96 recording to CD format22Demultiplexing a 24/96 Dual AES recording (Bit for Bit)23Upsampling a CD24General Sample Rate Conversion and Distribution25PCM to DSD26Using a Master Clock27Converting Quad AES to CD Format28Multi-channel Sample Rate Conversion – bit aligned sources29Multi-channel Sample Rate Conversion – Using a Master Clock30Multi-channel Sample Rate Conversion – with more alignment tolerance31Multi-channel Sample Rate Conversion – with multiple sample rates out32The Software – Menu and Setups34Navigating through the Menu – what the On-Screen symbols mean36Top Menu38Sample Rate Conversion38Format Conversion39Error Monitoring39Test39Info39Bit Activity Monitors40Level Meters40Display40Sample Rate Conversion / Format Conversion Submenu41Audio Input Select41Sync Source41Multiple Channel Sync42Input Sample Rate43Output Sample Rate43Output Mode45Filter45Output Word Length46Noise Shaping47Dither47AES Message Edit48SPDIF Message Edit48Gain/Balance and Maximise48Swap Channels49Phase49Detect Silence50De/Pre-Emphasis50Display Customise50Error Monitor Submenu52Error Hold and Reset52Test Submenu53Generator Overview53Controlling the Generator53Generator Amplitude Adjustment54Generator Frequency Adjustment54Self Test55Info Submenu56Bit Activity Monitor Submenu56Bit Activity Monitoring Overview56Setting the Monitor56Level Meters Submenu57Level Meter Overview57Turning the Level Meters On57Meter Type (Bar or Numerical)58Decay Time58Peak Hold58Using the dCS 974 to monitor a track59Watch Out for this One!59Display Submenu60Setups and Locking the Front Panel61Storing a Setup61Fixed Setups63Recalling a Setup63Locking Out Changes, and Unlocking Again64The Hardware – Controls and Connectors66Rear Panel66Signal Inputs66AES/EBU Digital Inputs 3 pin XLR Female (4 off – AES 1 – AES 4)66AES/EBU Reference Loop 3 pin XLR Female / Male (AES Ref Loop IN & OUT)66Sync Input BNC66SPDIF Inputs Various (3 off – RCA IN, BNC IN, TOS IN)66DSD/SDIF Input BNC (4 off – CH1 IN, CH2 IN, WCLK IN, LOOP OUT)66Signal Outputs67AES/EBU Digital Outputs 3 pin XLR Male (4 off – AES 1, AES 2, AES 3, AES 4)67AES/EBU Clock Output 3 pin XLR Male (1 off – AES CLK OUT)67SPDIF Outputs Various (3 off - RCA OUT, BNC OUT, TOS OUT)67DSD/SDIF Output BNC (3 off – CH1 OUT, CH2 OUT, WCLK OUT)67Control and Power67Remote 9 pin D type Female (2 off, Remote In and Loop Out)67Mains Supply 3 pin IEC (CEE22)67Additional Information67Front Panel68Power Indicator68OPERATION buttons68MEMORY buttons68LCD display68LED indicators69Rotary encoder69dCS 974 Technical Information70Digital Data Formats Supported70DSD71Filter Options71Signal to Q Noise and SACD Specs71DSD Data Formats72PCM Input and/or Output Performance73Filtering73Spurs74Noise75Group Delay75Clocking76Internal clock76Synchronising to source76Sample Alignment77Multiple Channel Sync’ing81Multiple Channel Multiple Sample Rate Synchronising83Noise Shaping84Dither85Digital Interface Specifications86Message Handling88AES/EBU Message Handling88SPDIF Message Handling89SDIF-2 Message Handling90SDIF-3 Message Handling90Power Consumption91Size, Weight and Operating Conditions92Size and Weight92Operating Conditions92dCS 974 Performance Curves94General Technical Information104Word Length Reduction104What does it look like?106When is Dither Needed?108Using Your dCS 974 For The First Time110What’s in the Box?110Supply Voltage Setting110Getting Started110Installing the Unit in a Rack112Options114Locking to Video Sample Rates114Mains Supply Voltage114Ordering Options for a New Unit114Having Your Options Changed114Maintenance and Support116Hardware116Service & Maintenance116User Changeable Parts116Software117Installing New Software117Warranty118Initial Warranty118Extended Warranty118Warranty Exclusions118Obtaining Service118Update or Calibration119Safety and Electrical Safety119Troubleshooting120FAQs120The unit fails to lock to a source signal.120The unit locks but no signal is received.120The destination device fails to lock to the unit.120The destination device locks but no signal or just noise is received.120The destination device connected to the AES or SPDIF outputs reports an error.120Output audio quality is poor.120Output audio bandwidth is low.121A stereo output signal is expected but signal is present on one channel only.121A stereo output signal is expected but one channel of the input appears on both channels of the output.121Tone appears on the outputs.121The LCD display is unreadable but the Power LED and possibly some other LEDs are lit.121Strange characters appear on the LCD display.121The stereo image is poor or out of position.121Maximise fails to increase the signal level to full scale.121“Invalid Fs Out for Fs In” message.122The Customise Display menu will not allow another option to be set.122If You Need More Help123Other Information123Indexes and Software Version Numbers124Definitions of Units124Tables124Figures125Keywords and Phrases126Owner Registration Transfer131サイズ： 1.79MBページ数： 131Language: Englishマニュアルを開く
