Changes between Version 2 and Version 3 of AudioVolume

Timestamp:

Oct 2, 2018, 7:59:36 PM (8 years ago)

Author:

Paro

Comment:

Expand on use of dB units with the volume filter.

AudioVolume

@@ -15 +15 @@
 }}}
 
-You can also use decibel measures:
+You can also use decibel measures. To increase the volume by 10dB:
 {{{
 ffmpeg -i input.wav -filter:a "volume=10dB" output.wav
 }}}
+
+To reduce the volume, use a negative value:
+{{{
+ffmpeg -i input.wav -filter:a "volume=-5dB" output.wav
+}}}
+
+Note that the `volume` filter only '''adjusts''' the volume. It does not '''set''' the volume. To set or otherwise normalize the volume of a stream, see the sections below.
 
 == Peak and RMS Normalization ==