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SparkySpark
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1145 posts since 30 Aug, 2004, from Skövde, Sweden

Postby SparkySpark; Sun Jun 17, 2018 5:08 pm Hipass and lopass on single tracks

Hi,
I am wondering about using HP and LP, which are commonly recommended for giving room for all tracks.

I use HP on my vocal tracks to avoid rumble. But what about VST synth or rompler tracks? Aren't they already rumble-free? Do I still need HP, and if so then why?

And what about lopass? If I use them to carve out space, wouldn't that trash their harmonics and make the tracks duller?

Hmmm... :wink:

Thanks for any advice!
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Boone777
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624 posts since 8 Aug, 2011

Postby Boone777; Sun Jun 17, 2018 9:45 pm Re: Hipass and lopass on single tracks

It depends on the individual sounds and the mix. For exemple if there is a piano part and the piano is the only instrument for that part keeping the low end intact makes sense. A piano in a dense mix would probably be best with a highpass to make room for kick and bass. You can automate the highpass on and off between those sections.

For very low end you can use an analyser to sometimes see rumble you can't hear. Are all the lows accumulated too much for the mix or is it giving it a nice round low end ?
So it all depends on the situation I would suggest not to highpass by default but because the mix really needs it.

https://www.youtube.com/watch?v=MslNaNafyr4&t=4s
Last edited by Boone777 on Sun Jun 17, 2018 9:48 pm, edited 1 time in total.
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DJ Warmonger
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2691 posts since 7 Jun, 2012, from Warsaw

Postby DJ Warmonger; Sun Jun 17, 2018 9:48 pm Re: Hipass and lopass on single tracks

VSTs have the most rumble you can imagine. In particular, Vacuum Pro tends to always give strong DC offset. You've got spectrum analyzer to detect low rumble.

As to high end, use your ears. There can be still a lot of noise that doesn't contribute to sound, which can be low-passed. I do that especially on bass.
Last edited by DJ Warmonger on Mon Jun 18, 2018 2:00 am, edited 1 time in total.
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camsr
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6820 posts since 16 Feb, 2005

Postby camsr; Mon Jun 18, 2018 1:01 am Re: Hipass and lopass on single tracks

Tweaking the lowpass frequency down until it's only having a small effect is simple and effective at reducing aliasing also, if you plan on using distortion after.
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SparkySpark
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1145 posts since 30 Aug, 2004, from Skövde, Sweden

Postby SparkySpark; Mon Jun 18, 2018 3:17 pm Re: Hipass and lopass on single tracks

camsr wrote:Tweaking the lowpass frequency down until it's only having a small effect is simple and effective at reducing aliasing also, if you plan on using distortion after.

Thanks. Not sure I understand this, but I am not much for distortion so perhaps this doesn't apply?
Making music is a nine-to-five job:
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SparkySpark
KVRian
 
1145 posts since 30 Aug, 2004, from Skövde, Sweden

Postby SparkySpark; Mon Jun 18, 2018 3:19 pm Re: Hipass and lopass on single tracks

DJ Warmonger wrote:VSTs have the most rumble you can imagine.

I had no idea! :o But using the MAnalyzer, I surely see the rumble.
Making music is a nine-to-five job:
From 9 PM to 5 AM.
Go MuLab!
SparkySpark
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1145 posts since 30 Aug, 2004, from Skövde, Sweden

Postby SparkySpark; Mon Jun 18, 2018 3:39 pm Re: Hipass and lopass on single tracks

Boone,

Thanks a lot for the link to the movie. It really cleared things up (more than a highpass filter would :D).
Making music is a nine-to-five job:
From 9 PM to 5 AM.
Go MuLab!
Samplecraze
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294 posts since 9 Aug, 2004

Postby Samplecraze; Tue Jun 19, 2018 2:36 am Re: Hipass and lopass on single tracks

I band-pass every channel and also use GClip, or similar, for removing errant transients.
It allows me more headroom....

https://www.samplecraze.com/tutorials/s ... -loudness/
SparkySpark
KVRian
 
1145 posts since 30 Aug, 2004, from Skövde, Sweden

Postby SparkySpark; Tue Jun 19, 2018 3:03 pm Re: Hipass and lopass on single tracks

Samplecraze wrote:I band-pass every channel and also use GClip, or similar, for removing errant transients.
It allows me more headroom....

https://www.samplecraze.com/tutorials/s ... -loudness/


Very nice and informative tutorial, thanks! When you say band-pass I assume you refer to highpass and not lowpass... or do you mean both?

It looks like all people have their own thoughts on this subject - some say highpass every track, others (almost) the opposite, some say leave the top untouched, others say lowpass everything but vocals (or EQ down the rest at least to make room for vocals shimmer), ...

It's really a bit confusing. :)
Making music is a nine-to-five job:
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Samplecraze
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294 posts since 9 Aug, 2004

Postby Samplecraze; Tue Jun 19, 2018 11:29 pm Re: Hipass and lopass on single tracks

Hey Sparky, I meant both LP and HP.
Acid Mitch
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1833 posts since 5 Oct, 2005

Postby Acid Mitch; Wed Jun 20, 2018 12:40 am Re: Hipass and lopass on single tracks

SparkySpark wrote:
It looks like all people have their own thoughts on this subject - some say highpass every track, others (almost) the opposite, some say leave the top untouched, others say lowpass everything but vocals (or EQ down the rest at least to make room for vocals shimmer), ...

It's really a bit confusing. :)


That’s because it's completely dependant on the source material you are working with and the result you’re trying to achieve.
It’s a bit like asking how much salt to put in your food with out saying what the food is. Some needs alot, some needs none and some needs an amount between those two extremes.
Samplecraze
KVRist
 
294 posts since 9 Aug, 2004

Postby Samplecraze; Wed Jun 20, 2018 1:57 am Re: Hipass and lopass on single tracks

Actually, and not trying to be difficult here, but it has nothing to do with taste or subjectivity. It is a simple engineering process we use to create headroom for the frequencies we want to best express. Band passing channels works because it removes all redundant frequencies.
MogwaiBoy
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2574 posts since 26 Nov, 2015, from Way Downunder

Postby MogwaiBoy; Wed Jun 20, 2018 6:54 pm Re: Hipass and lopass on single tracks

SparkySpark wrote:But what about VST synth or rompler tracks? Aren't they already rumble-free? Do I still need HP, and if so then why?


Synths can create insane frequency material above and below your hearing. Definitely not "rumble-free".
ramseysounds
KVRist
 
138 posts since 9 Jul, 2014, from London

Postby ramseysounds; Thu Jun 21, 2018 4:57 am Re: Hipass and lopass on single tracks

Check out Warren Huart on youtube.

https://www.youtube.com/channel/UCpyUGZ ... 57UACw3H2g

Excellent channel and he debunks so many myths and gives probably the easiest to follow advice I have stumbled across. He has a great tutorial on getting a great low end to your mixes.
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SparkySpark
KVRian
 
1145 posts since 30 Aug, 2004, from Skövde, Sweden

Postby SparkySpark; Sun Jun 24, 2018 8:38 am Re: Hipass and lopass on single tracks

Samplecraze wrote:Hey Sparky, I meant both LP and HP.

Ok thanks. I will try this. Thanks to the rest too! :tu:
Making music is a nine-to-five job:
From 9 PM to 5 AM.
Go MuLab!
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