A tiny addendum to the bbt markers doc

[ardour-manual] / include / on-clock-and-time.html

diff --git a/include/on-clock-and-time.html b/include/on-clock-and-time.html
index 9e3d95a007cd48c123b23cfeb60ac1ec8f84b232..2e221e2f5e4c5e9230ae3ef49ab8f8707634b251 100644 (file)
--- a/include/on-clock-and-time.html
+++ b/include/on-clock-and-time.html
@@ -11,7 +11,8 @@
   <a href="https://en.wikipedia.org/wiki/Word_clock" title="https://en.wikipedia.org/wiki/Word_clock">Word Clock</a>.
   It does not carry any absolute reference to a point in time: A clock is
   used to keep a system's sample rate regular and accurate.
   <a href="https://en.wikipedia.org/wiki/Word_clock" title="https://en.wikipedia.org/wiki/Word_clock">Word Clock</a>.
   It does not carry any absolute reference to a point in time: A clock is
   used to keep a system's sample rate regular and accurate.

-  Word clock is usually at the frequency of the sample rate&mdash;at 48&nbsp;kHz, its period is about 20&nbsp;μs. Word Clock is the most
+  Word clock is usually at the frequency of the sample rate&mdash;at 48&nbsp;kHz,
+  its period is about 20&nbsp;μs. Word Clock is the most

   common sample rate based clock but other clocks do exist such as Black and
   Burst, Tri-Level and DARS. Sample rates can be derived from these clocks as well.
 </p>
   common sample rate based clock but other clocks do exist such as Black and
   Burst, Tri-Level and DARS. Sample rates can be derived from these clocks as well.
 </p>


@@ -34,16 +35,17 @@
 </p>
 
 <p>
 </p>
 
 <p>

-  JACK provides clock synchronization and is not concerned with time code
+  JACK (Ardour does this internally if using the ALSA backend) provides
+  clock synchronization and is not concerned with time code

   (this is not entirely true, more on jack-transport later).
   On the software side, jackd provides sample-accurate synchronization
   between all JACK applications.
   (this is not entirely true, more on jack-transport later).
   On the software side, jackd provides sample-accurate synchronization
   between all JACK applications.

-  On the hardware side, JACK uses the clock of the audio-interface.
+  On the hardware side, JACK and Ardour use the clock of the audio-interface.

   Synchronization of multiple interfaces requires hardware support to sync
   the clocks.
   If two interfaces run at different clocks the only way to align the
   signals is via re-sampling (SRC&mdash;Sample Rate Conversion), which is
   Synchronization of multiple interfaces requires hardware support to sync
   the clocks.
   If two interfaces run at different clocks the only way to align the
   signals is via re-sampling (SRC&mdash;Sample Rate Conversion), which is

-  expensive in terms of CPU usage and may decreases fidelity if done
+  expensive in terms of CPU usage and may decrease fidelity if done

   incorrectly.
 </p>
 
   incorrectly.
 </p>
 


@@ -65,3 +67,4 @@
   clock and time. It is possible to extract absolute position data
   and speed from it.
 </p>
   clock and time. It is possible to extract absolute position data
   and speed from it.
 </p>

+