opus - Dec 2013 - opusenc equivalent of lame presets

> No comments?
Mostly no.

There are no presets because the encoder is smart enough to act
intelligently by default.  The exposed knobs are exposed only for
those who know they actually need them.  This is pretty much how Xiph
encoders have always been.

The programming API is a bit different, because there are more use
cases for streaming.

Monty

On Wed, Dec 18, 2013 at 2:08 PM, Monty Montgomery <monty at xiph.org>
wrote:
>> No comments?
>
> Mostly no.
>
> There are no presets because the encoder is smart enough to act
> intelligently by default.  The exposed knobs are exposed only for
> those who know they actually need them.  This is pretty much how Xiph
> encoders have always been.
>
> The programming API is a bit different, because there are more use
> cases for streaming.
So you're saying opusenc inputfile outputfile will be as small as
possible and of as high quality as possible for human ears? So no
need to up the knobs for listening on good output devices and digital
connections (cabling)? I remember that for oggenc it was important
to select the right -q level. For opusenc it seems 96kb avg is chosen
and on mid-end speakers I didn't notice quality issues.

Le decadi 30 frimaire, an CCXXII, Carsten Mattner a
?crit?:
> So you're saying opusenc inputfile outputfile will be as small as
> possible and of as high quality as possible for human ears? So no
> need to up the knobs for listening on good output devices and digital
> connections (cabling)? I remember that for oggenc it was important
> to select the right -q level. For opusenc it seems 96kb avg is chosen
> and on mid-end speakers I didn't notice quality issues.
Opus, like Vorbis, is a lossy codec. That means you will always have to
decide a balance between a very small file with poor quality and a large
file with very good quality. No one can decide that for you, it is a matter
of taste and need; I can not tell you whether you should take an expensive
meal in a five star restaurant or a cheap meal in a random dinner.

What Monty told you is that the other choices, the other configuration
options, are already set to a generic optimum: if you try to change them,
then you will get either a larger file with no better quality or a file with
the same size but poorer quality. It may be necessary for some applications,
but if it was for you, you would know it.

Regards,

-- 
  Nicolas George
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
Url :
http://lists.xiph.org/pipermail/opus/attachments/20131223/723d4550/attachment.pgp