avi is a container format and many different codecs can be used inside it. odds are that you don't have the required codec.
please see https://wiki.ubuntu.com/RestrictedFormats
if after installing all the codecs you still can't hear the sound please run totem (or which ever mediaplayer you are using) in a terminal, reopen the bug report, and paste any message hear.
avi is a container format and many different codecs can be used inside it. odds are that you don't have the required codec.
please see https:/ /wiki.ubuntu. com/RestrictedF ormats
if after installing all the codecs you still can't hear the sound please run totem (or which ever mediaplayer you are using) in a terminal, reopen the bug report, and paste any message hear.