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View Full Version : Re: Public Listening Test at 64 kbs


ff123
September 23rd 03, 04:53 PM
On Sun, 14 Sep 2003 02:40:57 GMT, ff123 > wrote:

>Roberto's current group listening test is open. This test is at 64
>kbit/s, and updates the original test I organized over a year ago:
>
>http://audio.ciara.us/test/
>
>Test ends on September 21st.

Test results:

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

Lame mp3 at 128 kbit/s and FhG mp3 at 64 kbit/s are used as the high
and low anchors, respectively.

1. No codec at 64 kbit/s can claim to be as good as mp3 at 128
kbit/s.
2. High efficiency AAC (AAC with spectral band replication, similar
to mp3 with SBR, aka mp3pro) makes a good first showing, being the
first among equals (he-aac, mp3pro, and ogg vorbis).
3. WMA9, Real, and Quicktime AAC make poor showings. While better
than the hoary mp3 at 64 kbit/s, they are definitely worse than the
top three 64 kbit/s contenders.

The test introduces schnofler's java version of abc/hr, the blind
listening utility:

http://rarewares.hydrogenaudio.org/files/abchr-java.zip

ff123

Lionel
September 23rd 03, 07:24 PM
ff123 a écrit :

> On Sun, 14 Sep 2003 02:40:57 GMT, ff123 > wrote:
>
>
>>Roberto's current group listening test is open. This test is at 64
>>kbit/s, and updates the original test I organized over a year ago:
>>
>>http://audio.ciara.us/test/
>>
>>Test ends on September 21st.
>
>
> Test results:
>
> http://audio.ciara.us/test/64test/results.html
>
> Lame mp3 at 128 kbit/s and FhG mp3 at 64 kbit/s are used as the high
> and low anchors, respectively.
>
> 1. No codec at 64 kbit/s can claim to be as good as mp3 at 128
> kbit/s.
> 2. High efficiency AAC (AAC with spectral band replication, similar
> to mp3 with SBR, aka mp3pro) makes a good first showing, being the
> first among equals (he-aac, mp3pro, and ogg vorbis).
> 3. WMA9, Real, and Quicktime AAC make poor showings. While better
> than the hoary mp3 at 64 kbit/s, they are definitely worse than the
> top three 64 kbit/s contenders.
>
> The test introduces schnofler's java version of abc/hr, the blind
> listening utility:
>
> http://rarewares.hydrogenaudio.org/files/abchr-java.zip
>
> ff123

Thank you for sharing,
Lionel