[vorbis] Re: Interactive RC3 quality analysis graphs

[Andy Dale]

sorry for being dense...what is abx?

Andy
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----- Original Message -----
From: "ff123" <miyaguch at eskimo.com>
To: <vorbis at xiph.org>
Sent: Sunday, January 20, 2002 1:50 AM
Subject: [vorbis] Re: Interactive RC3 quality analysis graphs

<p>> > Can someone ABX 60.wav with 60.ogg -q 0?
>
> Yes, it is not transparent.  It sounds like tape flutter.  Here are my
> results, all reliably ABX'd to a p-value of at least 0.01:
>
> -q 0, ABX 10/10, bitrate = 22.2 kbit/s
> -q 4, ABX 8/8, bitrate = 26.4 kbit/s
> -q 5, ABX 16/19, bitrate = 27.5 kbit/s
> -q 6, ABX 9/10, bitrate = 34.1 kbit/s
> -q 9, ABX 8/8, bitrate = 43.4 kbit/s
>
> It does get better with increasing quality, but by the time I got to -q 9,
> I had trained myself to hear it well enough.
>
> ff123
>
>
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<p><p>--- >8 ----
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