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AACplus v2
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Has anyone heard samples of Coding Technologies' new AACplus v2
encoding with Parametric Stereo? I'm quite curious as to what the
audio quality is like at the low bitrates (24-40Kbps) along with the
"derived" stereo separation from the downmixed mono audio.
Parametric Stereo webpage:
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Download Winamp, because it has Coding Technologies' AAC+ v2 encoder in
it that allows you to rip from CDs (it doesn't allow you to encode WAV
files).
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Do you have Winamp 5.1? If you don't you can download it and use it to rip
your own examples from CD to hear for yourself.
I've ripped CD to parametric stereo 44.1khz from 16-48kbps and have had
interesting results. 24-40kbps shows AACplus is a very effecient codec while
quality can be achieved at low rates. 40-48kbps definitely
compares with FM quality. Parametric stereo does an excellent job at stereo
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No, FM should sound miles better than 40-48kbps HE AAC v2. If you've got
good reception on FM it is almost lossless, i.e. you get out virtually
the same audio as they put in. The same can definitely not be said for
40kbps HE AACv2 and it cannot usually be said for 48kbps either. If
radio stations don't make the most of FM's capabilities that doesn't
mean that HE AACv2 sounds better than FM, because you're not comparing
like with like. To compare like with like you would have to transcode
the audio, apply heavy audio processing and such like prior to encoding
to HE AACv2. And the thing with FM is that it always avoids that final
lossy encode, so in reality FM will always sound better unless they can
achieve near transparency at such low bit rates.
HE AACv2 is a very good and very efficient codec, but it's by no means
perfect.
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separation but suffers in total stereo imaging.
Try it, sample the future. ;-)
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