--- a/webaudio/specification.html	Fri May 18 17:01:36 2012 -0700
+++ b/webaudio/specification.html	Thu May 24 16:35:24 2012 -0700
@@ -1192,7 +1192,17 @@
 "value" attribute. Additionally, value changes can be scheduled to happen at
 very precise times, for envelopes, volume fades, LFOs, filter sweeps, grain
 windows, etc. In this way, arbitrary timeline-based automation curves can be
-set on any AudioParam. </p>
+set on any AudioParam.
+ </p>
+
+<p>
+Some synthesis and processing <code>AudioNodes</code> have <code>AudioParams</code> as attributes whose values MUST
+ be taken into account on a per-audio-sample basis.
+For other <code>AudioParams</code>, sample-accuracy is not important and the value changes can be sampled more coursely.
+Each individual <code>AudioParam</code> will specify that it is either an "a-rate" parameter
+which means that its values MUST be taken into account on a per-audio-sample basis, or it is a "k-rate" parameter whose value
+changes MUST be taken into account at least at a 3ms resolution, but can be more precise than this.
+</p>
 
 <div class="block">
 
@@ -1416,7 +1426,7 @@
     <dd><p>An AudioGain object representing the amount of gain to apply. The
       default value (<code>gain.value</code>) is 1 (no gain change). See <a
       href="#AudioGain-section"><code>AudioGain</code></a> for more
-      information. </p>
+      information.  This parameter is <em>a-rate</em> </p>
     </dd>
 </dl>
 </div>
@@ -1459,8 +1469,8 @@
   <dt id="dfn-delayTime_2"><code>delayTime</code></dt>
     <dd><p>An AudioParam object representing the amount of delay (in seconds)
       to apply. The default value (<code>delayTime.value</code>) is 0 (no
-      delay). The minimum value is 0 and the maximum value is currently 1
-      (but this is arbitrary and could be increased).</p>
+      delay). The minimum value is 0 and the maximum value is determined by the <em>maxDelayTime</em>
+      argument to the <code>AudioContext</code> method <code>createDelayNode</code>.  This parameter is <em>k-rate</em></p>
     </dd>
 </dl>
 </div>
@@ -1609,7 +1619,7 @@
 <dl>
   <dt id="dfn-playbackRate_AudioBufferSourceNode"><code>playbackRate</code></dt>
     <dd><p>The speed at which to render the audio stream. The default
-      playbackRate.value is 1. </p>
+      playbackRate.value is 1.  This parameter is <em>a-rate</em> </p>
     </dd>
 </dl>
 <dl>
@@ -2395,6 +2405,10 @@
 
 <div id="attributes-DynamicsCompressorNode-section" class="section">
 <h3 id="attributes-DynamicsCompressorNode">4.20.1. Attributes</h3>
+<p>
+All parameters are <em>k-rate</em>
+</p>
+
 <dl>
   <dt id="dfn-threshold"><code>threshold</code></dt>
     <dd><p>The decibel value above which the compression will start taking
@@ -2491,6 +2505,10 @@
 href="http://www.musicdsp.org/files/Audio-EQ-Cookbook.txt">reference</a> by
 Robert Bristow-Johnson.</p>
 
+<p>
+Please note that the <code>frequency</code>, <code>Q</code>, and <code>gain</code> parameters are <em>k-rate</em>
+</p>
+
 <div id="BiquadFilterNode-description-section" class="section">
 <h3 id="BiquadFilterNode-description">4.21.1 LOWPASS</h3>
 
@@ -2778,12 +2796,13 @@
 
 <dl>
   <dt id="dfn-frequency"><code>frequency</code></dt>
-    <dd><p>The frequency (in Hertz) of the periodic waveform. </p>
+    <dd><p>The frequency (in Hertz) of the periodic waveform. This parameter is <em>a-rate</em> </p>
     </dd>
 </dl>
 <dl>
   <dt id="dfn-detune"><code>detune</code></dt>
-    <dd><p>A detuning value (in Cents) which will offset the <code>frequency</code> by the given amount. </p>
+    <dd><p>A detuning value (in Cents) which will offset the <code>frequency</code> by the given amount.
+     This parameter is <em>a-rate</em> </p>
     </dd>
 </dl>
 </div>