| Timecode frames-per-second | +
+ Configure timecode frames-per-second (23.976, 24, 24.975, 25, 29.97,
+ 29.97 drop, 30, 30 drop, 59.94, 60). Note that all fractional
framerates are actually fps*(1000.0/1001.0).
-
- |
|---|---|
| Pull up/down | +
+ Video pull-up modes change the effective samplerate of Ardour to
+ allow for changing a film soundtrack from one frame rate to another.
See Telecine
-
- |
| Slave Timecode offset | +
The specified offset is added to the received timecode (MTC or
LTC).
-
- |
| Timecode Generator offset | +
Specify an offset which is added to the generated timecode (so far only LTC).
-
- |
| JACK Time Master | +
Provide Bar|Beat|Tick and other information to JACK.
-
-
- These settings are session specific. + |
These settings are session specific.
| External timecode source | +
Select timecode source: JACK, LTC, MTC, MIDI Clock
-
- |
|---|---|
| Match session video frame rate to external timecode | +
+ This option controls the value of the video frame rate while
+ chasing an external timecode source. When enabled, the
+ session video frame rate will be changed to match that of the selected
+ external timecode source. When disabled, the session video frame rate
+ will not be changed to match that of the selected external timecode
+ source. Instead the frame rate indication in the main clock will flash
+ red and Ardour will convert between the external timecode standard and
the session standard.
-
- |
| External timecode is sync locked | +
+ Indicates that the selected external timecode source shares sync (Black
& Burst, Wordclock, etc) with the audio interface.
-
- |
| Lock to 29.9700 fps instead of 30000/1001 | +
+ The external timecode source is assumed to use 29.97 fps instead of
+ 30000/1001. SMPTE 12M-1999 specifies 29.97df as 30000/1001. The spec
+ further mentions that drop-frame timecode has an accumulated error of -86ms
+ over a 24-hour period. Drop-frame timecode would compensate exactly for a
+ NTSC color frame rate of 30 * 0.9990 (ie 29.970000). That is not the actual
+ rate. However, some vendors use that rate—despite it being against
+ the specs—because the variant of using exactly 29.97 fps has zero
timecode drift.
-
- |
| LTC incoming port | +
Offers a session agnostic way to retain the LTC port connection.
-
- |
| Enable LTC generator | +Does just what it says. |
| Send LTC while stopped | +
+ Enable to continue to send LTC information even when the transport
+ (playhead) is not moving. This mode is intended to drive analog tape
machines which unspool the tape if no LTC timecode is received.
-
- |
| LTC generator level | +
+ Specify the Peak Volume of the generated LTC signal in dbFS. A good value
is 0 dBu (which is -18 dbFS in an EBU calibrated system).
-
-
- These settings are common to all sessions. + |
+ These settings are common to all sessions. +
These settings are also common to all sessions.
+| Send MIDI Timecode | Enable MTC generator |
|---|---|
| Send MIDI Clock | Enable MIDI Clock generator |
+ These settings are also common to all sessions. +