Mixing, signal peaking...

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John T
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Re:Mixing, signal peaking... 2011/08/15 19:48:18 (permalink)
BenMMusTech



ok, this does not happen with digital but the theory is if they the recording engineers of yesterday year recorded hot, then we must do the same, because I don't believe it was just a case of of driving equipment to get harmonics, I also believe, this is how they acheived some of that warmth.

How analogue warmth was gained from running signals hot to tape and through certain other bits of gear is a well understood thing. Signals levels within digital are also a well understood thing. The two things are not, ho ho, analogous.

Honestly, you should listen to what people are telling you here, you could lean some useful stuff. You are simply flat wrong on this one.


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#31
Paul Russell
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Re:Mixing, signal peaking... 2011/08/15 23:12:48 (permalink)
Attacking is a harsh word. Examining would be better, but only because you put it up. I patched it into soundforge at Unity gain and recorded the audio back through the soundcard, and then ran the standard Soundforge analysis tools on it. So any change in levels could be attributed to perhaps the Soundcloud compression. If you put up the original 2-track wav then I could run the same tools and we'll see if we get the same results. 

 

Paul Russell 
Calamity Studio and on Facebook



#32
BenMMusTech
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Re:Mixing, signal peaking... 2011/08/16 00:16:33 (permalink)
Paul Russell


Attacking is a harsh word. Examining would be better, but only because you put it up. I patched it into soundforge at Unity gain and recorded the audio back through the soundcard, and then ran the standard Soundforge analysis tools on it. So any change in levels could be attributed to perhaps the Soundcloud compression. If you put up the original 2-track wav then I could run the same tools and we'll see if we get the same results. 



Sorry "Attacking" harsh word, I have just tried to post a non compressed version on my website and I am unallowed, don't have the right player but it def, seems to be somthing you are doing esp if you are recording the track out of your soundcard, then back into the soundcard of course the signal is going to get all screwed up, if you know of any way I can post or sent track let me know.

Benjamin Phillips-Bachelor of Creative Technology (Sound and Audio Production), (Hons) Sonic Arts, MMusTech (Master of Music Technology), M.Phil (Fine Art)
http://1331.space/
https://thedigitalartist.bandcamp.com/
http://soundcloud.com/aaudiomystiks
#33
BenMMusTech
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Re:Mixing, signal peaking... 2011/08/16 00:30:22 (permalink)
John T


BenMMusTech



ok, this does not happen with digital but the theory is if they the recording engineers of yesterday year recorded hot, then we must do the same, because I don't believe it was just a case of of driving equipment to get harmonics, I also believe, this is how they acheived some of that warmth.

How analogue warmth was gained from running signals hot to tape and through certain other bits of gear is a well understood thing. Signals levels within digital are also a well understood thing. The two things are not, ho ho, analogous.

Honestly, you should listen to what people are telling you here, you could lean some useful stuff. You are simply flat wrong on this one.

I am listening but what I am saying by having to lower your signals to keep within the digital range ie:no clipping, you are losing the meat of the picture.  Ok I am going to have to do some experiments on this one.
 
What I am saying is lets say we record a bass at -12db for peaks and -1db for peaks, IMHO the one recorded lower will be less fat and warm.  I can hear what you are going to say, just turn it back up once you have recorded it but in my belief this will not solve the warm/cold agrument.  Because in the recording stage is where the magic happens even with cheap preamps, everything has a optimum operating level.  We can see this in the Virtual emualtion effects when it is better to run the Fairchild hot, becuase that is how the original worked.
 
This is where my languge fails me and the science fails us all, I have said this is just my theory and I have pointed to two examples where the theory works.  I think it was you John who said you could not hear the warmth I was hearing (on my tracks) but the warmth is different to analog (tape,Lp).  This is because analog never gives the full picture.  Records only have a dynamic range of 50 db, so what most people call warmth is in actual fact, a lack of the full picture.  So when people go oh digital is so cold, it's because they are hearing a much broader dynamic range.
 
All I am doing with my theory is to try and counter that, I believe I have, it's up to you if you think I have or have not. 
 
Peace Ben

Benjamin Phillips-Bachelor of Creative Technology (Sound and Audio Production), (Hons) Sonic Arts, MMusTech (Master of Music Technology), M.Phil (Fine Art)
http://1331.space/
https://thedigitalartist.bandcamp.com/
http://soundcloud.com/aaudiomystiks
#34
drewfx1
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Re:Mixing, signal peaking... 2011/08/16 01:46:41 (permalink)
BenMMusTech
  
  What I am saying is lets say we record a bass at -12db for peaks and -1db for peaks, IMHO the one recorded lower will be less fat and warm.  
 
Peace Ben

If this is true (not saying it isn't), it would be due to analog circuitry before the conversion to digital.

The only digital issues with signal levels feeding a 24bit ADC are clipping (bad) and quantization error (probably always inaudible, except for extremely special cases, unless you are peaking at something ridiculous like -40dBFS or less). 

Anything else would either be on the analog side of the conversion (or perhaps in the conversion itself, if we want to differentiate the analog components "inside" the converter from the components feeding it), or would be independent of signal level (aliasing, jitter, etc., if these are audible at all).


And once in floating point digital inside Sonar (not talking about plugins here), clipping is impossible in the real world and signal level is unrelated to quantization error. And the math used is the same regardless of signal level (again, not talking about plugins here). There is no 
such thing as an "optimal level" in floating point (again, not talking about plugins here).


Using 64bit double precision might be advantageous with large numbers of tracks or serial operations, but this is debatable as it takes quite a lot of errors for them to propagate up to the point of being audible in the real world.

 In order, then, to discover the limit of deepest tones, it is necessary not only to produce very violent agitations in the air but to give these the form of simple pendular vibrations. - Hermann von Helmholtz, predicting the role of the electric bassist in 1877.
#35
jamescollins
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Re:Mixing, signal peaking... 2011/08/16 02:00:27 (permalink)
Ben, it is truly special to have you back. And yes, we'd love for you to post your 4000 word essay on digital warmth!

I'll have three fingers of Glenlivet, with a little bit of pepper... and some cheese.
 
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#36
BenMMusTech
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Re:Mixing, signal peaking... 2011/08/16 03:38:01 (permalink)
So DrewFx may not have endorsed my idea but at least he isn't opposed to it!!!!!

As for James, I am trying, all this is new and we as engineers are discussing where we are headed.  Once again, the apple was an apple and this was the way to eat it.  Now we have a new fruit, an orange, what is the best way to eat the orange?

Here is a better example of what I have been talking about because 95% of this track is real!!!
http://soundcloud.com/aaudiomystiks/girl it's all the same prinicples, record everything nice and hot, I have used my A2 TLaudio mastering compressor and finally the original mix, not this much better mix got me 82% per cent at the cornflake factory (audio school). 

Peace

Benjamin Phillips-Bachelor of Creative Technology (Sound and Audio Production), (Hons) Sonic Arts, MMusTech (Master of Music Technology), M.Phil (Fine Art)
http://1331.space/
https://thedigitalartist.bandcamp.com/
http://soundcloud.com/aaudiomystiks
#37
Paul Russell
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Re:Mixing, signal peaking... 2011/08/16 04:22:50 (permalink)
BenMMusTech


Sorry "Attacking" harsh word, I have just tried to post a non compressed version on my website and I am unallowed, don't have the right player but it def, seems to be somthing you are doing esp if you are recording the track out of your soundcard, then back into the soundcard of course the signal is going to get all screwed up, if you know of any way I can post or sent track let me know. 

Do you understand what 'at Unity' means?

What I am saying is lets say we record a bass at -12db for peaks and -1db for peaks, IMHO the one recorded lower will be less fat and warm.  

Wrong

 Because in the recording stage is where the magic happens even with cheap preamps, everything has a optimum operating level.  We can see this in the Virtual emualtion effects when it is better to run the Fairchild hot, becuase that is how the original worked. 


In the real world, hot to the Fairchild was -18dbFS.  Please educate yourself here on the difference between 0dB (VU) in the analog world and 0dB in the digital world. 


This is where my languge fails me and the science fails us all, I have said this is just my theory and I have pointed to two examples where the theory works.  I think it was you John who said you could not hear the warmth I was hearing (on my tracks) but the warmth is different to analog (tape,Lp).  This is because analog never gives the full picture.  Records only have a dynamic range of 50 db, so what most people call warmth is in actual fact, a lack of the full picture.  So when people go oh digital is so cold, it's because they are hearing a much broader dynamic range.
 

Completely wrong. You're confusing dynamics with frequency response. 

I'm sorry, mate, but you're flat wrong on this and I've typed all I can type on this subject. 









Paul Russell 
Calamity Studio and on Facebook



#38
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