diff --git a/doc/classes/AudioStreamGeneratorPlayback.xml b/doc/classes/AudioStreamGeneratorPlayback.xml
index 21c0598519b..b433bb747e4 100644
--- a/doc/classes/AudioStreamGeneratorPlayback.xml
+++ b/doc/classes/AudioStreamGeneratorPlayback.xml
@@ -27,7 +27,7 @@
- Returns the number of audio data frames left to play. If this returned number reaches [code]0[/code], the audio will stop playing until frames are added again. Therefore, make sure your script can always generate and push new audio frames fast enough to avoid audio cracking.
+ Returns the number of frames that can be pushed to the audio sample data buffer without overflowing it. If the result is [code]0[/code], the buffer is full.