View Single Post
  #14   Report Post  
Posted to rec.audio.pro
Ralph Barone[_3_] Ralph Barone[_3_] is offline
external usenet poster
 
Posts: 60
Default Why don't these signals null?

James Price wrote:
On Friday, October 18, 2019 at 3:04:40 PM UTC-5, John Williamson wrote:
On 18/10/2019 17:24, James Price wrote:

These were short (approx. 10 seconds), close-miked recordings, recorded
in two passes, back-to-back using the same mic, through the same cab and fed
a DI guitar via a sampled loop. The recordings were time-aligned perfectly at
the sample level.


No two recordings of any instrument (Whether digital or analogue) played
by a human will ever null completely. Apart from environmental factors
such as the air temperature, the player's will differ timing between the
two recordings.

Getting them as close as you did is actually damn consistent playing.


The recordings weren't played by a human twice. A 10 sec. *recording* of a
guitar DI was played into an amp/cab twice, consecutively, one after the
other, the output of which was recorded and cut up into separate tracks.
Both tracks were time-aligned and the phase inverted on one.


And what happens if due to the vagaries of when you hit the €śPlay€ť button,
the second recording is a half sample out of sync with the first?