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Thread: Decibel Audio Player...

  1. #1
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    Dec 2008
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    Decibel Audio Player...

    Decibel is a great little no-frills player, and maybe I'm missing something but even though I'm pretty sure it uses my Apple-format-enabled Gstreamer, I can't get it to play aac-format files. Not unless I change their extension to 'mp3' or 'ogg' that is!!!

    I can't believe this is an oversight or that this hasn't been moaned about by others, so why has the developer opted to the censor the aac-format by filtering this extension, particularly since it's Gstreamer that is doing the actual playing? And more importantly is there a simple way around it?

  2. #2
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    Dec 2008
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    Re: Decibel Audio Player...

    Turns out this app is written in Python which was not too painful to hack to allow the playing of *.aac files. What's immediately apparent is that although the files play perfectly, they seem to use a different 'header' format, the result of which is that track number, artist, album and length are all 'unknowns' in the playlist - only the track title is shown correctly! I did a search for aac header-specifics to attempt a better bodge but couldn't find anything. Maybe this is the reason why the developer hasn't included aac support, although I doubt it...

    Anyway, I managed to (finally) build a new Deb package with the modification, mainly thanks to this - link - and may be downloaded at the below link by anyone interested.

    http://ubuntuone.com/7JXj3Y7XN4crgGUyWmwc31

  3. #3
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    Dec 2008
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    Re: Decibel Audio Player...

    I was feeling bored so i thought I'd add one more comment to this.

    Turns out the 'problem' lies with Python's 'mutagen'. Or not as the case may be - the files with an 'aac' extension are 'raw' ADTS aac-format data which contain no 'meta-data' such as Artist, album etc, so the only data mutagen could extract would be file-length (which it currently doesn't). In fact, this was raised with the developer as far back as 2009 and has ever since been a low-priority item on the 'TO-DO' list. Link: http://code.google.com/p/mutagen/issues/detail?id=14#c4

    It doesn't of course excuse the fact that Decibel is the only multimedia player I have come across that ordinarily will not allow the playing of raw aac files. Which in my experience are not as uncommon as the above link would suggest - the most obvious example being the stream-captured output of aac-streams by Streamripper...

  4. #4
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    Dec 2008
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    Re: Decibel Audio Player...

    Does anyone know how to display the 'Volume Icon' in the Decibel player?

    Below are two pics, the first taken straight from the Decibel web-page, showing a little Volume-icon visible in the Play/Pause button area, specifically, directly on the right-hand side of the "Remaining time" counter. The other picture is what I see when I run Decibel - no Icon!

    The reason I need this is that Decibel has a really annoying 'feature' where for some reason it occasionally starts with the audio disabled. It is possible to adjust the volume via the Preferences/Sound settings but they don't 'stick' and need to be set every time Decibel is started.
    Attached Images Attached Images
    Last edited by omelette; December 16th, 2012 at 07:35 PM.

  5. #5
    Join Date
    Apr 2012
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    Re: Decibel Audio Player...

    Hey... this reply is way, way overdue!
    I am sure by now you have this one figured out... but for posterity's sake, the solution is really simple:
    add this to the launcher's properities
    --volume-button
    to force a display a volume slide on the app
    It's not what you know but who you know!

  6. #6
    Join Date
    Dec 2008
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    142

    Re: Decibel Audio Player...

    .....as is my response to your reply!

    So if you ever read this, thank you!!! I never did figure it out - your solution works a treat!

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