The No.1 Website for Pro Audio
 All  This Thread  Reviews  Gear Database  Gear for sale     Latest  Trending
optical vs. vca
Old 8th July 2005
  #1
Gear Maniac
 
whosyourdaddy00's Avatar
 

optical vs. vca

i understand how these compressors work, but what are the general charastics of each, and which is better for what application? i know these are huge generalizations and the proverbial 'use your ears' applies, i'm just curious.

thanks all

wyd
Old 8th July 2005
  #2
Gear Guru
 
Drumsound's Avatar
An optical compressor works off of a light source getting brighter as it sees more musical energy. There is a sensor that reacts to the amount of light and lowers the output signal. This is generally a slower and smoother process than a VCA, which is a Voltage Controlled Amplifier. A VCA reacts quicker and more 'drastically' an is often more noticeable when used heavily.

They are both useful for a variety of tones and reasons. If you have some transients that are jumping out are a track you might use a fast VCA to quickly get them without affecting the rest of the track. If you trying to make a vocal smoother sometimes an opto unit is the way to go.
Old 8th July 2005
  #3
Gear Maniac
 
whosyourdaddy00's Avatar
 

Smile

cool man, thanks that makes alotta sense
Old 8th July 2005
  #4


Of course, if you have comprehensive envelope controls on the VCA and can set the attack to 100ms+ and select a soft knee, you can get similar results to an opto...



-tINY

Post Reply

Welcome to the Gearslutz Pro Audio Community!

Registration benefits include:
  • The ability to reply to and create new discussions
  • Access to members-only giveaways & competitions
  • Interact with VIP industry experts in our guest Q&As
  • Access to members-only sub forum discussions
  • Access to members-only Chat Room
  • Get INSTANT ACCESS to the world's best private pro audio Classifieds for only USD $20/year
  • Promote your eBay auctions and Reverb.com listings for free
  • Remove this message!
You need an account to post a reply. Create a username and password below and an account will be created and your post entered.


 
 
Slide to join now Processing…
Thread Tools
Search this Thread
Search this Thread:

Advanced Search
Forum Jump
Forum Jump