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#16 Ogg Vorbis output quality setting

closed-fixed
Davy Durham
None
5
2003-03-16
2003-03-14
Anonymous
No

The Ogg Vorbis encoder in quality mode requires a decimal value between -1 and 10 to set the output quality. ReZound appears to scale this to between 0 and 1 (i.e. it uses 0.7 instead of 7 as the default quality) which is confusing to people who are used to encoding Ogg Vorbis files with oggenc.

Discussion

  • Davy Durham
    Davy Durham
    2003-03-14

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    I was going by the statment on this page:

    http://www.xiph.org/ogg/vorbis/doc/vorbisenc/vorbis_encode_init_vbr.html

    This value on the GUI get's sent directly to this function.
    So, is the documenation incorrect? Or, are you saying that
    it's confusing to the oggenc people?

    Also, (I see the manpage) do you know what -1 means? Is it
    a super low quality or something? They say "Normally it
    should be 0 to 10" And Maybe the library I'm using wouldn't
    like a -1 (or -.1)

    Do you think I should just put a comment out to the side on
    the dialog saying "0 (low) to 1 (high)", or change it to 0
    to 10? Or both the range change and add a label?

    Depending on if you know about -1 or not, I'll decide this.

    Thanks.

     
  • Davy Durham
    Davy Durham
    2003-03-14

    • assigned_to: nobody --> ddurham
     
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    OK, that is confusing - I have no idea how the libvorbisenc parameters map onto oggenc's ones. In this case I would leave the range as it is but definitely put a message in the dialog otherwise people who are used to using oggenc (like myself) will type in "6" and end up with a ridiculously huge file.

     
  • Davy Durham
    Davy Durham
    2003-03-16

    • status: open --> closed-fixed
     
  • Davy Durham
    Davy Durham
    2003-03-16

    Logged In: YES
    user_id=28588

    okay, done.. thanks for pointing this out.