When setting up Maestro for Digital AES playback/record, if there is no clock synch, Maestro will appear to record or playback very slow in relation to the countdown timer, and there will be no audio.

For those using Audio Science: Check the DASRV.INI file for the line AudioScienceClockSource=. If syncing to an external clock source set value to 1. Also check to make sure your digital cable out of the ASI card is connected to a Source, such as a BOB, that is set for Digital. For those using Digigram: Look in DASRV.INI for DigigramDigitalOption= DigigramClockSource= DigigramDigitalOption= 0=Looking for data on input 1. (default) 1=Looking for data on an optional source, ie: Syncro cable. DigigramClockSource= 0=Internal clock (Maestro provides clock as Master). (default) 1=External clock (Maestro would be a slave needing sync). 2= Looking for clock on the wordclock cable. Note: In order to record a digital signal with a Digigram card installed, Maestro must have an external clock (sync) source to ?frequency lock? to. This means the ?DigigramClockSource= must always be ?1? or ?2?, and that the equipment sending the digital audio will be the provider of the clock (sync) or another ?outboard? or ?house sync? must be provided. TheDigigramDigitalOption=? gives us the option of getting audio data from different sources. Most likely this would be set to ?0? to look on the AES/EBU input cable for data.