Why not always cut the 20-30 Hz range?
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- KVRian
- 576 posts since 15 Apr, 2004 from Sweden
I see we have some "master engineer superiority bias" here.
what's the sense in NOT cutting sub-sonic content and why should a linear process like that be done on every channel specifically?
what's the sense in NOT cutting sub-sonic content and why should a linear process like that be done on every channel specifically?
bleh
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- KVRAF
- 4054 posts since 8 Jan, 2005 from Hamilton, New Zealand
qa2pir: DOES IT SOUND GOOD? NO? THEN DON'T DO IT. YES? DO IT.
Only rule ever...
Only rule ever...
I make music: progressive-acoustic | electronica/game-soundtrack work | progressive alt-metal
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- KVRAF
- 12615 posts since 7 Dec, 2004
i hear this "blow up speakers" thing constantly and i just don't get it. how retarded do you have to be to set up your system such that a full power 0db pulse wave will cause any harm?
the greatest power you can deliver is going to be a pulse wave at some frequency such as 1k. any system should be able to handle this assuming it can also handle any other such typical signals. is is impossible to "blow up" a speaker without over-driving it to such a level as to be quite simply absolutely insane.
any professional should be aware of the effects of exposure and no professional would ever mix with levels beyond that threshold.
the greatest power you can deliver is going to be a pulse wave at some frequency such as 1k. any system should be able to handle this assuming it can also handle any other such typical signals. is is impossible to "blow up" a speaker without over-driving it to such a level as to be quite simply absolutely insane.
any professional should be aware of the effects of exposure and no professional would ever mix with levels beyond that threshold.
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Work less; get more done.
- KVRAF
- 11375 posts since 3 Feb, 2003 from Finland, Espoo
Indeed. Depending on if the speaker is ported or sealed, it has either a 12dB/octave slope or 24dB/octave. So basically even a monitor which is rated at only 60hz can reproduce the 30hz wave.. at a much lower amplitude though.jupiter8 wrote:One important thing to note is that if a speaker is rated down to say 40 Hz doesn't mean it cannot produce frequencies lower than that. It can.
It doesn't magically stop producing sound at a specific point. The frequency range should be qualified by a +-3 dB specification otherwise it doesn't really say anything. It only means it's relatively flat in that area.
In general, cutting or not cutting below 20-30hz all comes down to if it sounds good or not. This means that if you don't have a speaker capable of producing those low frequencies at an acceptable level then you'll never know what to do.
Luckily a lot of headphones can reproduce very low frequencies which gives you at least a little bit of a clue.
Cheers!
bManic
"Wisdom is wisdom, regardless of the idiot who said it." -an idiot
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- KVRAF
- 1729 posts since 26 Feb, 2008
You obviously have absolutely no clue what you are talking about. Seriously, just stop.megadeth wrote:The funny thing : everything under 20Hz will be cut by MOST CD players and MOST lossy compression schemes, like MP3(read the word MOST)
Some very bad mp3/lossy settings even cut upper, like 30-35...even 45Hz.
Try to listen to 240/380 quality Youtube song, and listen to 720 quality after
Or try to compress a big bass electro song in default 128 kbps mp3 format, and compare the bass with the wave/CD version
For reference, here's a 16.35hz sine tone (C0) - exported in mp3 format @ both 192kbps and 32kbps:
16.35hz fundamental (C0) sine wave (192kbps)
16.35hz fundamental (C0) sine wave (32kbps)
If you can't hear it, it's because of your monitors. Notice the ONLY difference between those files is in the inital attack period where the psychoacoustic compression of the lower bit-rate file adds a degree of temporary distortion:

[edit] ok, hmmm this is a little weird - I realized I had exported the octave above (33hz) by mistake so I fixed the links already but then upon looking at the correct waves now there is no distortion occurring in the attack period:

Rather odd really. FL Studio has so much weird shit occuring sometimes I don't even know what the hell it's doing. Especially since both those examples were done with a single instance of 3xosc in an empty project.
Anyway - the truth is that lossy compression schemes don't ever dump any LF information (unless there is some encoder option to apply some extra filter which is in no way actually related to the compression algorithm) because there is zero need to... low frequency by it's nature is low data rate (and the lower the frequency the less information needed to encode it per second) and all of the lossy encoding methods will retain audio information right down to DC.
The only instance where an actual device like a cd player, preamp or amplifier would bandlimit the low-end is if it wasn't a direct coupled output stage:
http://en.wikipedia.org/wiki/Direct_coupled_amplifier
Snare drums samples: the new and improved "dither algo"
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- KVRist
- 195 posts since 3 Apr, 2011 from Tokyo
I don't know what's true anymore so I'm going to leave this thread.rifftrax wrote:You obviously have absolutely no clue what you are talking about. Seriously, just stop.megadeth wrote:The funny thing : everything under 20Hz will be cut by MOST CD players and MOST lossy compression schemes, like MP3(read the word MOST)
Some very bad mp3/lossy settings even cut upper, like 30-35...even 45Hz.
Try to listen to 240/380 quality Youtube song, and listen to 720 quality after
Or try to compress a big bass electro song in default 128 kbps mp3 format, and compare the bass with the wave/CD version
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- KVRAF
- 1888 posts since 13 Aug, 2011 from Berlin
Do you care to give reasons for these things? Could be educating/entertaining.camsr wrote:I said this before and I will say it again, Don't bother with IIR highpass in mastering, use FIR filters. Don't low cut things that don't have energy there, it's not productive. If you need to low cut your bass drum, it's not because it's too rumbly, it's because it needs equalization.
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- KVRAF
- 2285 posts since 20 Dec, 2002 from The Benighted States of Trumpistan
That's a good rule, but it's a bit of an oversimplification. Context matters -- "sounds good" where, exactly? There is no generic listening environment. What's the style of music? Some musics in some settings need more bottom, and some styles in some settings need less. Do you want a huge rumble and boom in the clubs or a theater? Boost the very lows. Do you want to keep clarity (i.e., do you want something that people will listen to), especially on normal equipment? Cut the very lows. Are you trying to get a brown note effect, or something oriented towards bass? Keep the very lows, and maybe cut some highs.metamorphosis wrote:qa2pir: DOES IT SOUND GOOD? NO? THEN DON'T DO IT. YES? DO IT.
Only rule ever...
Wait... loot _then_ burn? D'oh!
- KVRAF
- 4141 posts since 11 Aug, 2006 from Texas
will666, you should be ashamed of yourself. If you can afford Logic, a Mac, and to be either in "Los Angeles & Sydney" you should be able to afford a copy of Sylenth1.sonicpowa wrote:hmm.. you are a team member of arcade.. I wonder what that is..will666 wrote:[video]
(information about stolen software video deleted)
Last edited by bmrzycki on Fri Oct 14, 2011 9:30 pm, edited 1 time in total.
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- KVRian
- 576 posts since 15 Apr, 2004 from Sweden
metamorphosis wrote:qa2pir: DOES IT SOUND GOOD? NO? THEN DON'T DO IT. YES? DO IT.
Only rule ever...
might your track somehow have inaudible, unreproducable subsonics that eat headroom and can be shaved off effortlessly and transparently? DO IT. YES!
this process would sound good in that it could increase loudness without crushing dynamics. and loudness is good unless you are john cage.
"doing it because it sounds good" is not a concept that relies on some fictive notion of absolute certainty, my dear. it is, though, a concept that tends to be brought up explicitly only by people who have a primary interest in making others look dumb and no capacity to actually explain things.
bleh
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Dean Aka Nekro Dean Aka Nekro https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=162100
- KVRAF
- 6178 posts since 4 Oct, 2007 from Escaped At Last
The gall to bandy around 'tutorial' videos with warez is really taking the piss, You are the worst sort of scum since you know better. Best thing for people like this is no "you should buy a license..." rather get a mod to whack the vermin (that crap blog of his clearly outlines the c**t has the means to pay for stuff and there is just no excuse)bmrzycki wrote:will666, you should be ashamed of yourself. If you can afford Logic, a Mac, and to be either in "Los Angeles & Sydney" you should be able to afford a copy of Sylenth1.sonicpowa wrote:hmm.. you are a team member of arcade.. I wonder what that is..will666 wrote:[video]
@6:43 in the video :
Do the right thing, buy a license of Sylenth1 today. You apparently use it.
thieving prick
- KVRAF
- 13801 posts since 19 Jun, 2008 from Seattle
Interesting thread...
marking to study more thoroughly, later.
marking to study more thoroughly, later.
I'm not a musician, but I've designed sounds that others use to make music. http://soundcloud.com/obsidiananvil
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