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View Full Version : New WMA audio format better than new Realmedia format and MP3...


Bires
07-17-2002, 07:18 AM
Sound and Vision did an interesting article comparing the three codecs for "CD-quality" audio. Interesting read:

http://www.soundandvisionmag.com/hot_topics/articledisplay.asp?ArticleID=126
ribitch
07-17-2002, 07:30 AM
what about aac, since mp3 is supposed to be replaced by aac
SnowSurfer
07-17-2002, 07:33 AM
any windows audio stuff is going to be all copy protected and thats bad. i will stick with my 6 gigs of mp3's for the time being
NuTs62
07-17-2002, 12:38 PM
it'd be great for smaller file sizes.. but it would also be great if they had some way of making all my current mp3 files smaller without loss of quality.
ribitch
07-17-2002, 01:06 PM
Originally posted by NuTs62
it'd be great for smaller file sizes.. but it would also be great if they had some way of making all my current mp3 files smaller without loss of quality.

aac is a higher quality sound, with a smaller file size. you can reduce your library size substantially by using aac and retain the sound qquality
DoPeY5007
07-17-2002, 01:36 PM
well for me it is MP3 for now, I encode using LAME, and the DJ soft I uses only supports MP3, so I have to use MP3 untill they change that..



and for file size, well I will just buy larger drives as needed
NuTs62
07-17-2002, 11:34 PM
Originally posted by chosenfool
plus there are different ways of encoding mp3 files. im assuming they used CBR, not VBR. VBR produces smaller files than CBR, and is the same quality as CBR. This is because where there is less data (not much frequencies) in the audio track, a lower bitrate is used. The more data in the audio track, the higher bitrate used, to compensate for higher frequencies.


So is this the reason why when I play some mp3's, the bitrate fluctuates while playing..? Say from 320 to 128 to 192, etc..? Everytime I see that, I'm like uhh, someone recorded this funny. So thats actually a good sign..?
Tommy Boomfiger
07-17-2002, 11:44 PM
how old is this article? i know ive seen this one before
Bires
07-18-2002, 07:01 AM
Originally posted by Tommy Boomfiger
how old is this article? i know ive seen this one before

2 months.

I aggree the test was less than excellent. FYI: The way they did the test was converting a CD track to a PCM, then compressing the PCM into different formats and doing a double-blind test of the PCM to the compressed audio, and deciding which one sounded best and by how much the lesser is off.

BTW: I'm still using MP3, because more in-dash MP3 CDplayers play just mp3, and not mp3 and wma...but more are being produced that do every day.
Ladogaboy
07-18-2002, 08:24 AM
Originally posted by NuTs62


So is this the reason why when I play some mp3's, the bitrate fluctuates while playing..? Say from 320 to 128 to 192, etc..? Everytime I see that, I'm like uhh, someone recorded this funny. So thats actually a good sign..?

:stupid: Yeah, I always wondered what the heck that was...

Now I know! :thumb:
NuTs62
07-18-2002, 10:20 PM
Originally posted by chosenfool


youre playing an mp3 file encoded with Variable BitRate (VBR).
yeah, thats a good sign - it actually is more efficient. It makes use of less space for more silent parts of the song. in the more silent parts the bitrate goes down, and on the "busier" parts of the song, the bitrate jumps up. Depending on the Max and Min bitrate set by the person who encoded it, the mp3 file will show different bitrates at different parts.

Thanks for the explanation. Now DOH! .. think of all the mp3's i deleted cuz i thought it was just funky!