diff --git a/DOCS/xml/en/codecs.xml b/DOCS/xml/en/codecs.xml
index 21777c7ec1..3d8eb350a1 100644
--- a/DOCS/xml/en/codecs.xml
+++ b/DOCS/xml/en/codecs.xml
@@ -780,6 +780,19 @@ option.
+
+Hardware MPEG audio codec
+
+
+This codec (selected by -ac hwmpa) passes through MPEG audio packets
+to hardware decoders, such as the ones found in full-featured DVB cards
+and DXR2 adapters.
+Don't use it in combination with any other audio output device
+(such as OSS and ALSA) that isn't able to decode it (you will hear
+only white noise).
+
+
+
VIVO audio
diff --git a/DOCS/xml/en/usage.xml b/DOCS/xml/en/usage.xml
index 6f2d129b52..edaccfd9c6 100644
--- a/DOCS/xml/en/usage.xml
+++ b/DOCS/xml/en/usage.xml
@@ -504,6 +504,23 @@ when an audio family is specified.
+
+MPEG audio Passthrough
+
+
+Digital TV transmissions (such as DVB and ATSC) and some DVDs usually have
+MPEG audio streams (in particular MP2).
+Some MPEG hardware decoders such as full-featured DVB cards and DXR2
+adapters can natively decode this format.
+MPlayer can be configured to relay the audio data
+without decoding it.
+
+
+
+To use this codec:
+ mplayer -ac hwmpa
+
+
Matrix-encoded audio