User`s manual

Alcorn McBride Digital Video Machine HD User’s Manual Rev 1.0

Combo Mode

The Combo Mode gives you access to playback features in addition to Play

commands. Specifically, this mode allows you to play up to 15 different videos or

playlists. It also allows you to Still, Resume, Stop, or Loop those videos. As a matter

of fact, if you’ve worked with any of the predecessors of the DVMHD-8400, you’ll

realize that this mode is identical to the mode that those products (i.e. DVMHD-7400,

DVM2, PK-8001, etc.) use.

Playing files in this mode is very similar to the Encoded Play, except that you have 4-

bits to specify the clip number instead of 8-bits. This allows you to play any clip from

1 (0001 in binary) to 15 (1111 in binary). The inputs are change-sensitive; that is,

when a change is detected, the new file will be played. It is therefore important that

the four bits change at the same time (<50ms from each other to be exact).

If a file is triggered during playback, the DVMHD will normally interrupt playback and

begin playing the triggered clip. The only exception to this rule is when a playlist is

currently running and is in an Uninterruptible state. In this situation, the file input will

be completely ignored (see the Playlist Control section for more information).

The 4 remaining inputs provide direct access to Resume, Still, Stop, and Loop the

clip. This functionality is covered in more detail in the following table, which describes

how each input behaves in the Combo Mode.

Input

Number

Function Description

1 Play File – Bit 0 Least significant bit of clip number (LSB)

2 Play File – Bit 1 …

3 Play File – Bit 2 …

4 Play File – Bit 3 Most significant bit of clip number (MSB)

5 Resume Resumes playing if paused or stilled. If a playlist

is running and is interruptible, this input will skip

to the next playlist entry, advance from a playlist

Wait command, or advance out of a Loop

command (LP).

6 Still Stills the playlist and/or video that is currently

playing. Still image remains on-screen.

7 Stop Stops the currently playing file. If the file is a

playlist, it is aborted even if it’s uninterruptible.

8 Loop This input is intended to be held during activation

of the Play File inputs. Doing so causes the

specified video or playlist to loop indefinitely from

beginning to end.