64kbps public listening test, FINISHED Options

[rjamorim]

Hello.

There have been some delays, but here are the so awaited results of the latest 64kbps group blind listening test.

http://audio.ciara.us/test/64test/results.html

And the final plot:
Each vertical line segment represents the 95% confidence interval (using ANOVA analysis) for each codec.


Note: Lame MP3 is 128kbps "high anchor" in this test, FhG MP3 is the "low anchor"

Zoomed version without the anchors:


Codec specifications:

• Ahead/Nero 6.0.0.15 HE AAC VBR profile Streaming :: Medium, high quality
• Ogg Vorbis post-1.0 CVS -q 0
• MP3pro (from Adobe Audition 1.0) VBR quality 40, Current Codec, allow M/S and IS, allow narrowing, no CRC
• Real Audio Gecko (from Real Producer 9.0.1 64kbps
• Windows Media Audio v9 VBR quality 50
• QuickTime 6.3 AAC LC 64kbps, Best Quality
• Lame MP3 encoder 3.90.3 --alt-preset 128 --scale 1. (high anchor)
• FhG MP3 encoder (from Adobe Audition 1.0) 64kbps CBR, Current codec, allow M/S, no I/S, allow narrowing, no CRC. (low anchor)

Thanks to everyone that participated and helped!

Best regards;

Roberto.

[rjamorim]

BTW: If the server starts with that redirection fag0try: Blame Verloren