diff --git a/modules/juce_dsp/frequency/juce_Convolution.h b/modules/juce_dsp/frequency/juce_Convolution.h
index 63e364070a..2750f58c60 100644
--- a/modules/juce_dsp/frequency/juce_Convolution.h
+++ b/modules/juce_dsp/frequency/juce_Convolution.h
@@ -164,8 +164,16 @@ public:
     ~Convolution() noexcept;
 
     //==============================================================================
-    /** Must be called before loading any impulse response. This provides the
-        maximumBufferSize and the sample rate required for any resampling.
+    /** Must be called before first calling process.
+
+        In general, calls to `loadImpulseResponse` load the impulse response (IR)
+        asynchronously. The IR will become active once it has been completely loaded
+        and processed, which may take some time.
+
+        Calling process will ensure that the IR supplied to the most recent call to
+        `loadImpulseResponse` is fully initialised. This IR will then be active during
+        the next call to `process`. It is recommended to call `loadImpulseResponse` *before*
+        `process` if a specific IR must be active during the first process call.
     */
     void prepare (const ProcessSpec&);