Alesis Hammerfall DSP System manual SyncCheck

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The HDSP MADI's outstanding clock control allows for a synchronization of the output signal to the word clock's input signal not only at identical sample rates, but also at half, quarter, double and quad sample rates. A playback of 96 kHz can easily be synchronized via a 48 kHz word clock signal.

SyncCheck

If several digital devices are to be used simultaneously in a system, they not only have to oper- ate with the same sample frequency but also be synchronous with each other. This is why digi- tal systems always need a single device defined as ‘master’, which sends the same clock signal to all the other (‘slave’) devices.

Remember that a digital system can only have one master! If the HDSP MADI’s clock mode is set to Master, all other devices must be set to Slave.

RME’s exclusive SyncCheck technology (first implemented in the Hammerfall) enables an easy to use check and display of the current clock status. The SyncCheck field indicates whether no signal (No Lock), a valid signal (Lock) or a valid and synchronous signal (Sync) is present at each of the digital clock source inputs. The ‘AutoSync Ref’ display shows the current sync source and the measured frequency.

In practice, SyncCheck provides the user with an easy way of checking whether all digital de- vices connected to the system are properly configured. With SyncCheck, finally anyone can master this common source of error, previously one of the most complex issues in the digital studio world.

User's Guide HDSP MADI © RME

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Contents TotalMix Bit / 96 kHz SyncAlignZLMSyncCheck SteadyClock MadiGeneral Driver Installation and Operation WindowsConnections and TotalMix Driver Installation and Operation Mac OSTechnical Reference Hdsp Madi Brief Description and Characteristics Package ContentsIntroduction System RequirementsExternal Connectors Hardware InstallationHardware Connectors Warranty AccessoriesInternal Connectors Blue JumperTrademarks AppendixFCC CE / FCC Compliance StatementsDriver Installation and Operation Windows Driver Update Driver InstallationDeinstalling the Drivers Driver and FirmwareSettings Dialog Configuring the Hdsp MadiFirmware Update Safe Mode Quick BootBuffer Size SyncCheckSettings dialog DDS Clock Modes Synchronisation SyncCheck Playback Operation and UsageMultichannel DVD-Playback AC-3/DTS under MMEAC-3 / DTS ASIO-Multiclient Low Latency under MME Buffer Size AdjustmentMulti-client Operation Recording Operation under Asio Known ProblemsWindows 2000/XP Common ProblemsOperation under Gsif Gigasampler Interface DIGICheck Using multiple Hdsp Madi / AES-32Input signal cannot be monitored in real-time Hotline TroubleshootingInstallation Driver Installation and Operation Mac OS Flash Update Driver and Flash UpdateConfiguring the Hdsp Madi Safe Mode Settings dialog DDS Clock Modes Synchronisation Midi doesnt work Mac OS X FAQRound about Driver Installation Supported Sample Rates Repairing Disk PermissionsPCI card and PCI slot compatibility Various InformationHotline Troubleshooting Users Guide Hdsp Madi RME Connections and TotalMix Madi I/Os HeadphonesConnections Midi Word ClockWord Clock Input and Output InputRemember that a digital system can only have one master Technical Description and UsageCabling and Termination Operation Overview TotalMix Routing and MonitoringUsers Guide Hdsp Madi RME User Interface Tour de TotalMix Elements of a ChannelSubmix View Mute und Solo Submix ViewPresets Quick Access PanelPreset Banks PresetPreferences Monitor PanelStereo Pan Law Editing the NamesMain Monitor Hotkeys Menu Options Level Meter Elements of the Matrix View TotalMix The MatrixAsio Direct Monitoring Windows only TotalMix Super-FeaturesAdvantages of the Matrix Delete Routings Selection and Group-based OperationCopy Routings to other Channels Recording a Softwares playback Mixing several input signals into one record channelRecording a Subgroup Loopback Using external Effects Devices Setup TotalMix Midi Remote ControlMeaning in TotalMix MappingElement Preset 5 3A / 58 / #A Preset 3 38 / 56 / #GSimple Midi Control Loopback DetectionUsers Guide Hdsp Madi RME Technical Reference Tech Info Outputs Technical SpecificationsInputs Stereo Monitor Output Phones Transfer Modes Resolution / Bits per SampleDigital Madi Basics Technical BackgroundLock and SyncCheck How much Zero is Zero? Latency and MonitoringOversampling Sample frequency kHz 44.1 88.2DS Double Speed Core Audios Safety OffsetQS Quad Speed SteadyClock PCI Performance Terminology 96K Frame