Applications : Checking AC3 encoded files in Pyramix
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Checking AC3 encoded files in Pyramix
Two types of AC3 encoded files can be played back in Pyramix:
If the file was generated as an .ac3 file, then Pyramix will automatically decode it on the fly and playback 6 chan-
nels of audio.
If the file was generated as a .wav file, then Pyramix will consider the file as Wave and simply play two channels of
digital encoded AC3 to its (digital) outputs to feed an external decoder.
Most AC3 encoders allow embedding of encoded AC3 signal into a Wave file while encoding, for easy playback.
For example, Minnetonka SurCode offers this feature.
Working with External Machines
Use Auto-chase
Auto-Chase is a convenient, one button press solution for situations where control must be frequently switched
between the Internal Machine I.e. Pyramix and an External Machine or machines.
If all enabled machines are set to Auto-Chase, when Ctrl is switched between machines the Active Machine is
automatically taken out of Chase mode and the previously Active Machine automatically enters Chase mode. To
activate Auto-Chase for all external machines, enable the menu setting:
Machines > External Machine > Auto-Chase
And, to activate Auto-Chase for the internal machine, enable the menu setting:
Machines > Internal machine > Auto-Chase
Using Freeze Mode
• If you are using Pyramix for sound-for-picture work, the Freeze Mode is a very powerful tool. For example,
to position an out of sync car-door slam do the following:
• Use the Transport controls with all machines on-line to position the picture on the point where the door
slams.
• Press the Freeze button to freeze the external machine(s).
• Select the Clip that has the sound of the door slam.
• Position the Clip Sync Point at the beginning of the impact. (Click and drag the red Clip Sync Point or
position the Playhead Cursor and select Clips > Set Sync Point to Cursor (Ctrl + M)
• Press Freeze and the Playhead Cursor will jump to the point at which Freeze was activated.
•Now, select Clips > Send Sync Point to Cursor (Ctrl + Alt + M) and the Clip will move so that its Sync
Point is at the Playhead Cursor position and the sound of the slam is synchronized with the picture.
Versioning
When making “promos” and commercials for radio, TV and film there is often a requirement to produce several dif-
ferent versions with, for example, different dates or times or different languages. The effects and music are often
the same for each version. Pyramix offers several ways of achieving this.
Probably the simplest method is to select all the Clips you wish to move or copy to a new location in the Timeline
then select Cursor and Marks > Goto TimeCode, (NUM 6) type in the new TC location and then Cut and Paste or
Copy and Paste. If you have a lot of this work to do, you may want to build a couple of simple macros to do this
with the these commands: Cut / Paste to Cursor and Copy / Paste to Cursor.
As an alternative to typing in the new cursor TimeCode location, you could use the Nudge Cursor functions to off-
set it from where it is currently parked. Nudge to the left/right uses one of the 5 predetermined nudge settings.
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