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Old 09-17-2002, 05:47 PM
Alécio Costa's Avatar
Alécio Costa Alécio Costa is offline
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Default phase rotation? group delay? comb filtering?

Hi friends!
I was recording an electric guitar last week with the following set-up:

02R channel (1) - Beta 57close miking a Peavey Combo

02R channel (2) - AT4050 capturing the room

02R channel (3) - direct box getting a feed from an ART EFX processor

I was first monitoring in the stereo buss of the 02R and inverting phase, making different blends of sound so as to have a better tone.

Then I decided to get the 3 channels out from the main mix and send them to a single track of my PT Mix via an ADAT bridge 24 bits light piped from the CD8At slot card.

I was monitoring the combi at TAPE 1 return on the 02R. The sound was different, like phased. I had to reblend the mics and the direct out box to achieve the same tone we had approved when in teh main stereo mix.

The Pt mix is on a G4 800 set to internal clock and the 02R is slaved to it at slot (1).

what would we call this? phase rotation? group delay?comb filtering?

Thanks!!
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High-End e-Mastering & Music Production
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PT Ultimate Native 2023.3 - Mac Mini M1 16GB RAM - Mac Os Ventura 13.2 - 2 192 IO Digidesign Digital


PT HD2 Accel - 10.3.10 OS 10.6.8 - Mac Pro 2008 16GB RAM

Mastering Gear: Pendulum Audio, Crane Song, Avalon, Great River, Sebatron, Sonnox, Izotope, PSP, TC, Fab Filter.
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  #2  
Old 09-18-2002, 09:18 AM
Alécio Costa's Avatar
Alécio Costa Alécio Costa is offline
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Default Re: phase rotation? group delay? comb filtering?

?
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Alécio Costa Studio
High-End e-Mastering & Music Production
www.aleciocosta.com

http://www.facebook.com/alecio.costa

PT Ultimate Native 2023.3 - Mac Mini M1 16GB RAM - Mac Os Ventura 13.2 - 2 192 IO Digidesign Digital


PT HD2 Accel - 10.3.10 OS 10.6.8 - Mac Pro 2008 16GB RAM

Mastering Gear: Pendulum Audio, Crane Song, Avalon, Great River, Sebatron, Sonnox, Izotope, PSP, TC, Fab Filter.
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Old 09-18-2002, 09:28 PM
Bokir Bokir is offline
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Default Re: phase rotation? group delay? comb filtering?

Are you sure you have unchecked the 'stereo/master out' from the 3 input channel? IMHO sometimes we often forget that we hear from both the direct out from the channel input along with the tape return.

Just a thought.
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  #4  
Old 09-19-2002, 06:09 AM
Alécio Costa's Avatar
Alécio Costa Alécio Costa is offline
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Default Re: phase rotation? group delay? comb filtering?

Yes Bokir, the sound was not duplicated. then it would become even stranger...
!!
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Alécio Costa Studio
High-End e-Mastering & Music Production
www.aleciocosta.com

http://www.facebook.com/alecio.costa

PT Ultimate Native 2023.3 - Mac Mini M1 16GB RAM - Mac Os Ventura 13.2 - 2 192 IO Digidesign Digital


PT HD2 Accel - 10.3.10 OS 10.6.8 - Mac Pro 2008 16GB RAM

Mastering Gear: Pendulum Audio, Crane Song, Avalon, Great River, Sebatron, Sonnox, Izotope, PSP, TC, Fab Filter.
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