X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Ftimecode-generators-and-slaves.html;h=5a221540eb256a66a62ff971abcaca8eaff45724;hb=dfec6899ef2a121ccf2ff1d47008e7ac4844cf70;hp=65ba5c631123d0cdd39f99db0c847330108e4613;hpb=e6123839d20de4f903ed74820cc087fc8401f625;p=ardour-manual diff --git a/include/timecode-generators-and-slaves.html b/include/timecode-generators-and-slaves.html index 65ba5c6..5a22154 100644 --- a/include/timecode-generators-and-slaves.html +++ b/include/timecode-generators-and-slaves.html @@ -11,7 +11,7 @@ Ardour can generate timecode and thus act as timecode master, providing timecode information to other applications. Ardour can also be slaved to some external source in which case the playhead - follows the incoming timecode.
+ follows the incoming timecode.
Combining the timecode slave and generator modes, Ardour can also translate timecode. e.g create LTC timecode from incoming MTC.

@@ -45,7 +45,7 @@ This is pretty straightforward: simply turn it on. The MTC and MIDI-Clock generator do not have any options. The LTC generator has a configurable output level. JACK-transport cannot be generated. Jack itself is - always synced to its own cycle and cannot do varispeed — it will + always synced to its own cycle and cannot do varispeed—it will always be synced to a hardware clock or another JACK master.

@@ -160,16 +160,16 @@ specifies 29.97df as 30000/1001 frames per second, not all hardware devices follow that standard. The checkbox Lock to 29.9700 fps instead of 30000/1001 allows - to use a compatibility mode for those devices.
+ to use a compatibility mode for those devices.
When enabled, the external timecode source is assumed to use 29.970000 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 -86 ms 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 yields zero timecode - drift. + some vendors use that rate—despite it being against the + specs—because the variant of using exactly 29.97 fps yields zero + timecode drift.

Clock Sync Lock

@@ -209,7 +209,7 @@ ardour:MIDI clock in port.

-

LTC - Linear Timecode

+

LTC—Linear Timecode

The LTC slave decodes an incoming LTC signal on a JACK audio port. It will auto-detect the frame rate and start locking to the signal @@ -250,7 +250,7 @@ The user-bits in the received LTC frame are ignored.

-

MTC - MIDI Timecode

+

MTC—MIDI Timecode

Ardour's MTC slave parses full timecode messages as well as MTC quarter-frame messages arriving on the @@ -287,4 +287,3 @@ configures Ardour to act as translator from timecode to BBT information.

-