User Manual midiclock - E
Contents
1. Please consider the Following hints to prevent those problems First use a sound card with a small buffer size if you use DAWs and software sequencers Furthermore a professional MIDI interface is essential for good results Avoid merging midiclock signals with MIDI commands from other sources since you cannot ensure beat accuracy in this case It is possible that you still notice shifted tracks after pausing In this case you can get around this by sending a MIDI song position pointer The midiclock sends this pointer at the beginning of playback and re sync but not on MIDI continue That s the only way to ensure that all slaves are situated at the same song position and start in sync 13 05 1 Technical details Electrical Properties e MIDI OUT The midiclock has two MIDI ports DIN 5 pole They provide a current loop and are designed for opto coupler driven slaves like documented in the MIDI specs The no load voltage is 3 3V the short circuit current is 20MA e Power The USB port Type B acts only as a power supply You can use either a computer or an external power adaptor The power consumption is max 75mA at 5V when used properly Please note that the input voltage must not exceed 7V under any circumstances Dimensions and Weight The dimensions with knob and rubber feet are 48mm high 95mm long and 62mm wide The weight is 235g without cable 14 05 2 Table of MIDI commands2. The midiclock uses the following MIDI commands to synchronise and control all connected slaves MIDI command Synchronisation MIDI clock OxF8 Start Song Position Pointer OxF2 0x00 0x00 MIDI start OxFA Pause MIDI stop OxFC Continue MIDI continue OxFB Reset like Start Resync like Start but on the next downbeat The MIDI clock command OxF8 is always being sent when a power supply is connected The jitter is 0 1us on average the maximum devi ation is 0 46us 15 06 Operating Notes e Use a soft and clean cloth to wipe your midiclock Do not use any deter gents on the surface e Do not expose your midiclock to temperatures below 10 C 14 F or above 60 C 140 F and avoid direct sunlight IF you Face a high difference in temperature during transport wait a l Please note the following advice to help you enjoy your midiclock Failure to observe may void your warranty sufficient time before you use your midiclock Otherwise there may be condensation which can destroy the electronics inside e The midiclock must not be used in wet environments and the ingress of any fluids must be avoided e Usually the power is supplied by a computer USB port IF you want to use a wall plug be sure to meet the electrical specifications e Damages which are caused by third party wall plugs are not included in any warranty You also void your warranty with r
3. IF you do not confirm it in time the changes will be discarded and the actual tempo is displayed again In this mode accidental adjustments won t affect the tempo of your performance You can change the operating mode by double clicking the encoder When the LED is lit permanently the midiclock is in Live mode The Live mode is useful if you want to be able to change the tempo at any time during the playback In this case the tempo changes are applied immediately and without confirmation During Live mode the BPM shown in the display is always the actual tempo You can always get back into the Normal mode by double clicking the encoder again 10 04 Hints for Synchronisation with MIDI clock Synchronising multiple MIDI devices is a known topic for almost any electronic musician The midiclock is an essential tool for a low jitter sound setup but please keep in mind that also the midiclock cannot compensate all the malfunctions of other devices There are numerous manufacturers that make MIDI capable devices but not all of these instruments are able to react immediately and precisely to MIDI clock There are two main problems that a MIDI slave has to solve especially a DAW First it needs to take care of the synchronisation of the tracks to the master clock Second it should implement Functions like start pause and stop These actions should be applied immediately and without any delay or
4. run out time 11 04 It is technically possible to synchronise a system to a jittering external clock source To be prepared For jitter some products make use of complex signal processing With a PLL for example it is possible to manage difficult clock signals That implies that the slave calculates an average value For the tempo to compensate the jitter This calculated moving average is then used for the playback This average tempo is continuously refreshed by the incoming clock ticks but the playback is freewheeling on the calculated BPM Sometimes you can observe that the song position is not based on the counted beats but on the calculated tempo and the elapsed time Moreover most devices For electronic music production are equipped with a buffer for the sound output These buffers cause constant latencies that have to be merged with the playback time It depends on the implementation what happens when a stop command is received Sometimes you can recognize some sort of a run out time In this run out time the data in the audio buffer is played till the end and the playback does not stop immedia tely This causes that some sequencers do not stop instantly with the arrival of the stop command but with delay of the buffer IF now the master does not define a new song position the slaves are shifted to 12 each other ona continue command In this case all slaves run with the same tempo but not in sync with the beat
5. setting You can switch between both operating modes by double clicking the encoder 03 1 User Interface Play Pause Button This button starts and stops all connected devices if they support MIDI Start MIDI Stop and MIDI Continue commands After pressing the button at the beginning of a session the song position of all slaves is reset to the beginning and the clients are started During playback MIDI Stop and MIDI Continue are sent alternately Resync Reset Button IF pressed during playback this button causes a reset of the song position pointer in all connected devices at the beginning of the next bar Followed by MIDI Start With this Feature you are able to re sync slaves during playback without interruption IF it is pressed while the playback is paused it acts like a Stop button IF you now press Play again all devices start their playback From the beginning 8 Play Pause button Resync Reset button gt 03 2 Modes of Operation The midiclock has two modes of operation that are indicated by the LED M and the display brightness IF the LED is off the midiclock is in the Normal mode In the Normal mode it is intended to be used as a stable clock generator that works in the background IF you change the tempo by turning the rotary encoder the midiclock displays the new tempo and you can confirm it within a timeout of two seconds by pressing down the encoder
6. User Manual midiclock Function Utilization and technical Details Simply play together 00 Box contents 01 Hello 03 Function a E E E E EE eee eae ae ee 31 User Interface 3 2 me Operation E EE E E ast 04 Hints for Synchronisation with MIDI clock 05 Technical Details 5 1 Electrical Properties Dimensions and Weight o 2 MIDI command Reference 7 06 Operating Notes oe i Declaration of Conformity Dee Naan ee cuee E 08 Contact 02 a s Quick AR pare A E Menweadsts o4 ne 16 17 an 00 Box contents Included in the box are a midiclock a USB cable 1 8m A B and this manual 01 Hello Congratulations for purchasing your midiclock With this tool you are able to completely control the tempo of your live sets your perfor mance or improvisation It s easy now to sync multiple DAWs and sequencers with a uniquely low jitter control the tempo and start and stop your gear whenever you want The midiclock opens up new possibilities For you to interact with other artists Please read this manual carefully and Follow the advice to be rewarded from the beginning with a great and powerful tool Have Fun and simply play together Maximilian Rest amp Rudolph Maier 02 Quick Start Guide Computer uss HH To get started with the midiclock you need at least a sequencer a computer running a software s
7. equencer or any other instrument that is able to sync to a MIDI clock signal Connect the devices as pictured Set them into MIDI slave mode accor ding to their respective manuals if necessary so that they can sync to MIDI clock USB FW H E FJ usB Fw IF you use a software sequencer please adjust the correct settings to compensate the latencies For further information please consider chapter 04 Hints for synchronisation with MIDI Clock Set your required tempo with the rotary encoder and confirm by pressing it down If all devices are connected and ready for playback you can start by pressing Play Pause MIDI Interface MIDI IN EE mnn Sequencer USB MIDI OUT ED MIDI OUT a mO 03 1 User Interface Display amp LEDs The display shows the current tempo in beats per minute LED The upper LED M shows the operating mode rotary encoder When lit the Live mode is active otherwise the midiclock is in its Normal mode During playback the lower LED D flashes with the beat It is constantly lit when paused and turns off if all devices are display reset at the next beginning of a playback Rotary encoder The rotary encoder is used to set the tempo The respective function depends on the current operating mode In the Live mode tempo changes are applied immediately In the Normal mode the tempo is only changed if you press down the encoder after your
8. ough handling excessive strain manipulation mechanical or chemical influences as well as damage due to other reasons that we are not responsible For 16 AT 07 Declaration of Conformity amp Disposal Note It is hereby confirmed that the midiclock meets all rules and regulations regarding EU directive 2004 108 EG for electromagnetic compliance to protect humans and the environment The midiclock is compliant with the RoHS directive yko HS IF you wish to dispose your midiclock please contact your local dealer for recycling Do not put it in your household waste 08 Contact We that is Erfindungsbiiro Rest amp Maier made the midiclock meet our own high expectations on value and Functionality of a product IF you have any questions or suggestions do not hesitate to contact us A small production batch for professional users makes it possible to adapt to your personal requirements Erfindungsbiiro Rest amp Maier GbR support midiclock de www midiclock de Composition and Layout Aaron Winter Contributing editors to the English version Matthew Thomas and Kathrin Schalper Erfindungsbiro Rest amp Maier GbR Berlin 2013 www midiclock de
Download Pdf Manuals
Related Search