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mp3: dual mono vs stero ;-) |
RicK700i
Joined: Jan 03, 2005
Posts: 385
From: South Africa
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Is dual mono better than stereo for mp3? I use the Nero program to edit my mp3s
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batesie
Joined: Feb 13, 2004
Posts: > 500
From: London, UK
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stereo is better quality. 2 channels makes the most of us having 2 ears
[addsig] |
david1975
Joined: Apr 05, 2004
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yeah stereo will always be better |
brix25
Joined: Aug 20, 2003
Posts: > 500
From: Cape Town, South Africa
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I'd like to get as closer to the real thing as possible... Gimme stereo.
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blayv
Joined: Oct 24, 2004
Posts: > 500
From: Srbija
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In fact it isn't, because if you encode in 128kbps dual mono you'll get 2x64kbps meaning lower quality of the sound than if you used joint stereo where you have 1 main channel that takes most of bits and 2 more for sampling differences between L and R channel. Anyway bottom line is if you use less than 192kbps sampling rate I strongly recommend (joint) stereo, and vice versa- 192+ you can use dual mono
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Alf Nif
Joined: Dec 01, 2003
Posts: 426
From: Sweden
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If you're going to play your mp3's on a phone without earphones I think it doesn't matter if you choose mono or stereo since there are only one speaker (don't remember if someone has released a phone with stereo speakers)
Alf Nif
formerly known as seiunUsagi |
whizkidd
Joined: May 14, 2004
Posts: > 500
From: India
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I always thought the K700 had mono output. So it can play stereo sounds?
This message was posted from a T230 |
AlfBaxter
Joined: Jan 20, 2005
Posts: 100
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K700 plays in stereo though the handsfree. Motorola E1000 has stereo speakers. |
milmino
Joined: Jun 14, 2004
Posts: 454
From: Kenya
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I prefer stereo, but again there aren't many songs I know with stereo effects. Thats why I use mono to encode, for smaller file sizes.
posted from a pc clone |
clank
Joined: Sep 24, 2004
Posts: > 500
From: India
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Definitely stereo...it gets you absorbed in the music. Dual mono just seems like mono sound being played at higher volume... |
blackspot
Joined: Sep 06, 2004
Posts: > 500
From: Philippines
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dual mono is just mono but in 2 channels storing the same information which IMO is a waste of space and processing power. It will have the same quality as an ordinary mono but will occupy twice the space.
resistance is futile. |
jplacson
Joined: Apr 21, 2002
Posts: > 500
From: Philippines
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I'm not quite sure what you're asking...
Are you asking if it's better to use 2 identical channels (mono signal x2)... or encode using stereo (2 separate channels/data signals)... or encode using joint stereo (1 data signal with 2 partial channels)?
2 identical channels (or dual mono) would be a bit pointless, but some people can tell the difference between a mono signal played through 2 speakers/headphones... and 2 identical mono signals each played through a separate speaker/headphone.
2 separate signals (stereo) would be the best...but occupies 2x the bandwidth of a mono file, and about 50% more than a joint stereo file.
Joint stereo, is a unique compression scheme that is essentially a mono file... then the compressor additionally stores only the sounds that are different on the L/R channels... so you get a much smaller file than a Stereo file... but with the same effect.
Of course, the higher the bitrate... the better. 192kbps should be the bare minimum encoding rate for decent mp3s.
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blayv
Joined: Oct 24, 2004
Posts: > 500
From: Srbija
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@blackspot: dual mono doesn't mean 2xsame channel. It means separate encoding for L&R channel- that is in fact real stereo sound- while joint stereo is sort of improvisation of stereo sound. dual mono definitely sounds better than joint stereo or 'stereo' in nero, but only if you use higher bit rate-say 192 and higher. At lower bit rates it's better to use joint stereo.
[ This Message was edited by: Blayv on 2005-03-15 06:24 ] |
blackspot
Joined: Sep 06, 2004
Posts: > 500
From: Philippines
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AFAIK, Dual mono is just mono which comes from adding the original L & R channels then distributing the result to the left and right -- it will have the same sound as an ordinary mono. It will probably sound louder but definitely not better compared to true stereo or joint stereo.
Stereo or Joint Stereo is just a method of distributing the bitrate when encoding mp3 files between the two channels, for example, at 128Kbps for a certain sample, in Stereo mode, the bitrate will be evenly distributed 64-64 between L & R while in Joint Stereo the signal is processed such that an optimum distribution of the bitrate will be achieved between the L & R channels. This way if one of the channels contains very few sound information it will be given lesser bandwidth while maximizing the other channel. This makes the quality of the channel with more data to significantly increase. This is effective for sounds containing totally different signals between the L & R channels and specially useful on lower bitrates.
resistance is futile. |
AlfBaxter
Joined: Jan 20, 2005
Posts: 100
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@blackspot
I think what you're describing there is any VBR encoding, whether it uses joint stereo or not. All VBR will give extra bitrate to more complex signals. Joint stereo, as I believe someone else pointed out, looks for information that is the same on both L and R channels (essentially information that is mono anyway) and encodes it once instead of twice like normal stereo. |
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Posted: 2005-03-14 19:39
