Alesis Hammerfall DSP System Simple Midi Control, Loopback Detection, Monitor Main 3E / 62 / D

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27.5 Simple MIDI Control

The stereo output faders (lowest row) which are set up as Monitor Main outputs in the Monitor panel can also be controlled by the standard Control Change Volume via MIDI channel 1. With this, the main volume of the HDSP MADI is controlable from nearly any MIDI equipped hardware device.

Even if you don't want to control all faders and pans, some buttons are highly desired to be available in 'hardware'. These are mainly the Talkback and the Dim button, and the new moni- toring options (listen to Phones submixes). Fortunately a Mackie Control compatible controller is not required to control these buttons, as they are steered by simple Note On/Off commands on MIDI channel 1.

The notes are (hex / decimal / keys):

Monitor Main: 3E / 62 / D 3

Dim: 5D / 93 / A 5

Mono: 2A / 42 / #F 1

Talkback: 5E / 94 / #A 5

Monitor Phones 1: 3F / 63 / #D 3

Monitor Phones 2: 40 / 64 / E 3

Monitor Phones 3: 41 / 65 / F 3

Preset 1: 36 / 54 / #F 2

Preset 2: 37 / 55 / G 2

Preset 3: 38 / 56 / #G 2

Preset 4: 39 / 57 / A 2

Preset 5: 3A / 58 / #A 2

Preset 6: 3B / 59 / B 2

Preset 7: 3C / 60 / C 3

Preset 8: 3D / 61 / #C 3

An example of a small MIDI controller covering such MIDI functionality (and even some more) is the Behringer BCN44. This little box has 4 pots and 8 buttons for all the above functions – for less than 60 Euros.

27.6 Loopback Detection

The Mackie Control protocol requires feedback of the received commands, back to the hard- ware controller. So usually TotalMix will be set up with both a MIDI input and MIDI output. Un- fortunately any small error in wiring and setup will cause a MIDI feedback loop here, which then completely blocks the computer (the CPU).

To prevent the computer from freezing, TotalMix sends a special MIDI note every 0.5 seconds to its MIDI output. As soon as it detects this special note at the input, the MIDI functionality is disabled. After fixing the loopback, check Enable MIDI Control under Options to reactivate the TotalMix MIDI.

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 System Requirements Package ContentsBrief Description and Characteristics IntroductionHardware Installation Hardware ConnectorsExternal Connectors Blue Jumper AccessoriesWarranty Internal ConnectorsTrademarks AppendixFCC CE / FCC Compliance StatementsDriver Installation and Operation Windows Driver and Firmware Driver InstallationDriver Update Deinstalling the DriversConfiguring the Hdsp Madi Firmware UpdateSettings Dialog SyncCheck Quick BootSafe Mode Buffer SizeSettings dialog DDS Clock Modes Synchronisation SyncCheck Playback Operation and UsageDVD-Playback AC-3/DTS under MME AC-3 / DTSMultichannel Low Latency under MME Buffer Size Adjustment Multi-client OperationASIO-Multiclient Recording Operation under Asio Known ProblemsCommon Problems Operation under Gsif Gigasampler InterfaceWindows 2000/XP 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 Mac OS X FAQ Round about Driver InstallationMidi doesnt work Various Information Repairing Disk PermissionsSupported Sample Rates PCI card and PCI slot compatibilityHotline Troubleshooting Users Guide Hdsp Madi RME Connections and TotalMix Headphones ConnectionsMadi I/Os Input Word ClockMidi Word Clock Input and OutputRemember 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 PanelEditing the Names Main MonitorStereo Pan Law Hotkeys Menu Options Level Meter Elements of the Matrix View TotalMix The MatrixTotalMix Super-Features Advantages of the MatrixAsio Direct Monitoring Windows only Selection and Group-based Operation Copy Routings to other ChannelsDelete Routings Mixing several input signals into one record channel Recording a Subgroup LoopbackRecording a Softwares playback Using external Effects Devices Setup TotalMix Midi Remote ControlMapping ElementMeaning in TotalMix Loopback Detection Preset 3 38 / 56 / #GPreset 5 3A / 58 / #A Simple Midi ControlUsers Guide Hdsp Madi RME Technical Reference Tech Info Technical Specifications InputsOutputs Transfer Modes Resolution / Bits per Sample DigitalStereo Monitor Output Phones Madi Basics Technical BackgroundLock and SyncCheck Sample frequency kHz 44.1 88.2 Latency and MonitoringHow much Zero is Zero? OversamplingDS Double Speed Core Audios Safety OffsetQS Quad Speed SteadyClock PCI Performance Terminology 96K Frame