Merge pull request #685 from tjingboem/master

Jacko changes and copypasted text realtimejack

csound5/opcodes/Jacko.xml

@@ -15,6 +15,12 @@
     greater flexibility in signal routing.
   </para>
 
+    <para>
+    It is Jack that calls csoundPerformKsmps.The k-rate speed is 
+    not dictated by Csound, it is dictated by the Jack DAEMON 
+    configuration: --period. Csound has to agree to that.
+  </para>
+
   <para>
     In addition, the Jacko opcodes can work with the Jack system
     in "freewheeling" mode, which enables the use of Jack-enabled

examples/JackoInit.csd

@@ -9,16 +9,18 @@ ksmps = 128
 nchnls  = 2
 0dbfs   = 1
 
-instr 1
+; by Menno Knevel - 2023
 
 JackoInit "default", "csound"
+
+instr 1
+
 JackoInfo
 
 endin
 </CsInstruments>
 <CsScore>
-
- i 1 0 0
+i 1 0 1
 e
 </CsScore>
 </CsoundSynthesizer>

overview/realtimejack.xml

@@ -3,12 +3,19 @@
 
   <para>
     Under a number of systems the JACK connection kit can be used for both
-    audio and MIDI input/output. For more details on this, see
+    audio and MIDI input/output. JACK is available for Linux, Mac and Windows. For more details on this, see
   </para>
   <para><ulink url="http://jackaudio.org/faq">http://jackaudio.org/faq</ulink>
   </para>
 
-
+  <bridgehead>Scheduling</bridgehead>
+    <para> DO NOT
+      use "--sched" if you are using JACK for audio output. JACK controls
+      scheduling for the audio applications connected to it, and also tries
+      to run at the highest possible priority. If the "--sched" flag is
+      used, Csound and JACK will be competing rather than cooperating,
+      resulting in extremely poor performance. </para>
+
   <bridgehead>JACK Audio</bridgehead>
   <para>The simplest way to use the JACK plugin enabling input and output is as follows:
   <screen>