MIDI Snapshots

Once you’ve developed several snapshots for a mix, they can be recorded into a sequencer for consistent playback.

This feature is set in the Mix Options window, under Setup in the lower menu bar. When enabled:

1)Incoming MIDI program changes (received on any MIDI channel) can recall Snapshots numbered 0–127 on the console.

2)The D8B sends MIDI Program changes on MIDI channel 1 when snapshots are recalled on the console, either via the dynamic automation snapshot track or by manually recalling a snapshot from either the snapshot window or via the front panel.

3)Place the sequencer in record on the D8B MIDI channel and cable. While the mix plays, select snapshots at the appropriate time. Each snapshot change is stored as data in the sequence and therefore can be shifted, cut, copied, pasted, etc.

See “The Snapshot Window” on page 69 for information on how to set the program change MIDI channel.

Word Clock and the D8B —

The Kitchen Sync

In order for all digital components to function together in unity, they must all move together, sample-by-sample, through the digital data stream.

Word clock is an incredibly important part of digital recording! The concept is simple: If multiple devices are synchronized together via word clock, they progress together through the digital data stream, one sample at a time. This is called sample- accurate sync.

Each system works in reference to one master device. Forty-eight thousand times a second (or whatever the common sample rate is) digital slaves keep track of the word clock status of the master device; they only output the next sample when the master device outputs the next sample.

This type of system provides very accurate synchronization. Incorporating a time reference, like MTC, along with sample accurate sync enables time stamping of data changes, like start-stop time, snapshot placements, real-time automation data, etc. Hence, ultimately flexible and way cool automation capabilities of virtually every control on the Digital 8•Bus! Yahoo!

The optional Clock I/O card for your Digital 8•Bus provides a means to send and receive digital word clock.

This card is necessary:

•When digitally combining the Digital 8•Bus with a computer-based DAW, MDMs, video recorders, etc.

•When the D8B must send or receive word clock

other than through ADAT lightpipe or AES/EBU connections.

Sync data can transmit directly through ADAT Lightpipe and AES/EBU connections. However, a complete sync system needs two main ingredients:

•Word clock, sample-accurate sync. This is provided through the Digital 8•Bus optical or AES/EBU connections, and through the optional Clock I/O card.

•Time reference to stamp automation data for accurate playback. This is typically provided through MIDI Time Code (MTC).

D8B Manual • Chapter 4 • page 108