Re: Logic Audio, was Re: Midiocracy

[Charles Zwicky <cazwicky@earthlink.net>]

Classic..!

> I just use my ears instead of calculation.
> The increase in body, depth, definition is massive, when comparing 
> an identical multitrack session between Logic Pro and Cubase (6).
> Regardless of floating point whatever. Just try it out. Its the only 
> test that works when in danger of getting lost in technical data 
> comparison without the ability to verify in detail, what 
> manufacturers tell you to sell their software. Called ears.
> J
> - - -
> jayrope
> http://www.kliklak.net
>
> On Jun 21, 2011, at 11:42 PM, 
> Loopers-Delight-d-request@loopers-delight.com wrote:
>
> >  That's quite a lot of assuming, Jay....
> >
> >  Let's talk about Protools HD, OK?
> >
> >  For starters, the "HD" fixed point audio engine and headroom. 
> > 0dBfs = clipping.
> >
> >  Try a simple experiment.
> >
> >  Insert a 20hz HP filter across a 100hz sinewave in Protools HD 
> > while monitoring the output level on an Analog VU meter across the 
> > stereo bus.  When you engage the HP filter you will see a 3-6dB 
> > increase in signal level on the analog output for a signal that 
> > shouldn't be affected at all by that filter.
> >
> >  This sort of signal condition is happening on every channel of 
> > Protools HD and the net result is that you run out of headroom and 
> > the signal clips, though the Protools meters won't reflect this 
> > because it's caused by intersample math overages.
> >
> >  Logic, on the other hand uses a floating point audio engine, this 
> > gives over 1500dB of headroom, and retains the full 32 bit audio 
> > data at any attenuation or boost in level.  That is what I call a " 
> > a properly programmed audio engine", my friend.
> >
> >  But what do I know... ;-)  *


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