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I have Ubuntu 14.04, videoplayer Totem, and when I play video in 3gp using this videoplayer or any other, I can't hear a sound! How to solve this problem??

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Try Using VLC. It plays 3gp videos great. Install it with this command in a terminal.

sudo apt-get install vlc
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    This does not provide an answer to the question. Once you have sufficient reputation you will be able to comment on any post; instead, provide answers that don't require clarification from the asker. - From Review
    – techraf
    Aug 11 '16 at 0:21
  • @techraf He suggested using VLC and that can be an answer!
    – Anwar
    Aug 11 '16 at 10:03
  • OP clearly wrote "using this videoplayer or any other, i can't hear a sound". This is a request for a clarification hence should be a comment.
    – techraf
    Aug 11 '16 at 10:05
  • @techraf It was a suggestion given in a form of a question. The intended meaning was using VLC, in my humbile opinion of course.
    – Anwar
    Aug 11 '16 at 10:09
  • @AnwarShah I really am confused with your comments (both with you assuming there is a need for them and their content). Question is similar to "I have a network problem, I can't ping anywhere" the reply is "Try to ping 192.168.1.1". Even if the reply solved the problem, until the question is amended, it is not an answer.
    – techraf
    Aug 11 '16 at 10:52
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The container format 3gp most commonly contains the following codecs (I have added links to samples for testing):

  1. H.263 video and AAC audio

    wget http://www.andrews-corner.org/samples/test_aac.3gp
    
  2. H.263 video and AMR audio

    wget http://www.andrews-corner.org/samples/test_amr.3gp
    

Other codecs are possible (notably H.264 video and different favours of AAC audio) but these are the most commonly seen. These 2 samples (which I created myself with FFmpeg) play with Totem under Trusty Tahr with the addition of some gstreamer plugins, these are not present on a default installation of Trusty:

sudo apt-get install gstreamer1.0-libav

With these downloaded and installed both sound and video should be fine. See this on my own Trusty installation:

enter image description here

The sound is not great but certainly should be able to be heard...

Other good choices for playback if you are still not happy with Totem's efforts are vlc and SMplayer:

sudo apt-get install vlc smplayer

and these two great players also have no issues with these two 3gp files on my Trusty system...

Notes:

The sample files were created as follows, using the latest git revision of FFmpeg:

ffmpeg -i "The Swan of Tuonela.mp4" -s qcif -vcodec h263 \
       -acodec aac -ac 1 -ar 8000 -r 25 -ab 12200 test_aac.3gp

and then:

ffmpeg -i "The Swan of Tuonela.mp4" -s qcif -vcodec h263 \
       -acodec libopencore_amrnb -ac 1 -ar 8000 -r 25 -ab 12200 test_amr.3gp
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  • I have installed both codecs, I can hear the sound in them, but when I play another videos, I still can't hear any sound. I tried to install VLS player, and suddenly terminal said that "Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming." Aug 11 '16 at 19:14
  • @ubuntubeginner So the 2 sample files I have created play ok on Totem? I am wondering if perhaps your other 3gp files are at fault. Can you post one of the offending files here: datafilehost.com
    – andrew.46
    Aug 12 '16 at 0:25

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