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Why Join-Stereo decreased the bitrate of 270 kbps (stereo) to 216.4 kb
marciano2008
post Sep 13 2012, 04:19
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Hi. I don't speak English unsure.gif

Stereo (270.5 kbps):



Join-Stereo (216.4 kbps):



Why? blink.gif

However --> Figure 2 (Join-Stereo > Figure 1 (Stereo) blink.gif

Figure 1

Figure 2

Thanks for the replies smile.gif
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m45t3r
post Sep 13 2012, 04:27
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Joint Stereo is generally more efficient than pure Stereo (you can read how Joint Stereo works here: http://wiki.hydrogenaudio.org/index.php?title=Joint_stereo). Since you're using a Quality parameter (-V0), the encoder can simple use less bitrate to encode at the same Quality.

Either way, that pictures proves nothing. I would say that the quality of both files are similar, but at such high bitrates both should be transparent.
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db1989
post Sep 13 2012, 10:39
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The point of joint stereo is to decrease the bitrate needed to represent a particular two-channel signal.

Also, we don’t care about pictures. You listen to music with ears, not eyes or any other organ. Number 8 of the rules to which you were directed during registration makes this quite clear.

This post has been edited by db1989: Sep 13 2012, 11:05
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slks
post Sep 13 2012, 16:26
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Forcing simple stereo (-m s) in VBR modes can inflate the bit rate, since it's less efficient than joint stereo. It's that simple.


--------------------
http://www.last.fm/user/sls/
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marciano2008
post Sep 13 2012, 16:33
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thx smile.gif
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