[LAU] CD tracks in Ardour

Paul Davis paul at linuxaudiosystems.com
Mon Apr 30 21:49:24 UTC 2012

On Mon, Apr 30, 2012 at 5:26 PM, Fons Adriaensen <fons at linuxaudio.org> wrote:
> On Mon, Apr 30, 2012 at 05:03:28PM -0400, Paul Davis wrote:
>> On Mon, Apr 30, 2012 at 4:54 PM, Fons Adriaensen <fons at linuxaudio.org> wrote:
>> > But there is one strange thing. There are 75 CD sectors per
>> > second (Ardour calls them frames). But in the location dialog,
>> > times are shown in a format that divides a second in 30 units
>> > (probably time code frames, FPS is set to 30, no drop).
>> timecode frames.
>> > Why is that ? If track start and end times must correspond to
>> > CD sectors, that means that the times shown in that dialog are
>> "CD frames (sectors)" are not available as a clock mode at this time.
>> there is only type of clock object in Ardour's GUI, so the limitations
>>  of one apply to all (and vice versa).
> But that seems to be a display limitation only. As far as I can see,
> computation of the track lenght correctly rounds to multiples of
> 1/75 before taking the difference and then displaying it using
> timecode frames. So the 'clock object' seems to do its internals
> to full precision anyway. That is what makes me wonder why it
> doesn't display in the same way.

the clock is showing a precise location for a marker.

because the marker is noted as a  CD marker, it will be rounded to CD
frames when appropriate, which currently does not include display

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