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Topic: Personal Listening Test of MP3 encoders at 224kbps (Read 25609 times) previous topic - next topic

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  • halb27
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Personal Listening Test of MP3 encoders at 224kbps
Reply #25
But as you can see they can be encoded transparently @224 kbps.
  • Last Edit: 24 May, 2013, 06:17:53 PM by halb27
lame3995o -Q1

  • Dynamic
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Personal Listening Test of MP3 encoders at 224kbps
Reply #26
It would help since Guruboolez's data is classical-centric, and, quite frankly, I'm tired of seeing his results get raised during discussions where they aren't a good fit.


After most of the week stuck with GPRS mobile internet at 20kbps, I've finally made the edit to the Wikipedia Codec listening test / Results section.

Feel free to edit, of course.
Dynamic – the artist formerly known as DickD

  • Kamedo2
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Personal Listening Test of MP3 encoders at 224kbps
Reply #27
I'm only familiar with some of the samples, but would you say that most of them contain hard transients? The "speech" and "vocal" samples don't but still are not transparent.

Kamedo, could you maybe elaborate a little on the problems you heard?

I tend to hear smearing effects in breathiness at 4-10kHz. We need to hear what we don't hear usually and it will need skill. The high frequency breath noise like 'hhhhhh...' collapses, and go unnatural.
If you don't hear those, please make your room as quiet as you can, and practice at lower bitrate.

  • Kamedo2
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Personal Listening Test of MP3 encoders at 224kbps
Reply #28
I plotted bitrate vs quality distribution of those individual samples(25 samples per encoder).
LAME3.100 V2+ really is a cvbr behavior. No samples go below 210kbps.
LAME 3.98.4 CBR is a total CBR; bitrate barely changes and only quality differs.
Helix has more distribution to the lower bitrates but surprisingly keeps quality at these low bitrates.
And Helix has the most VBR-ish distribution; narrow quality distribution and wide bitrate fluctuation.