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ezfit:autofit_environmental_algorithms [2009/03/13 11:00]
smayr 		ezfit:autofit_environmental_algorithms [2016/04/08 09:50] (current)
smayr [Theater/Place of Worship]
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 == Autofit and Environmental Algorithms == == Autofit and Environmental Algorithms ==
- Rev 2008-11-10+ Rev 2009-03-24
  
 == Support Routines == == Support Routines ==
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  * Adaptive Directionality = Off (if available)  * Adaptive Directionality = Off (if available)
  * Datalogging = <del>Off</del> Enabled (if available)  * Datalogging = <del>Off</del> Enabled (if available)
- + * <del>Volume Control: if Digital VC present, set VC = 50%.  --- //[[smayr@audina.net|Siegwart Mayr]] 2009/03/24 11:00//</del> 
- + * Volume Control: if Digital VC present, set VC = 50% and VC Start Position = 50%.  --- //[[smayr@audina.net|Siegwart Mayr]] 2009/07/07 12:20//  NOTE: Moved this option to be executed before Defaults.  --- //[[smayr@audina.net|Siegwart Mayr]] 2009/07/13 12:03//
- +
- +
- +
- +
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- +
- +
  
  
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  * Calculate Avg Soft Gain = (SoftGain@500Hz + SoftGain@1000Hz + SoftGain@2000Hz + SoftGain@3000Hz) div 4  * Calculate Avg Soft Gain = (SoftGain@500Hz + SoftGain@1000Hz + SoftGain@2000Hz + SoftGain@3000Hz) div 4
  
-Original calculation:+<del>Rev 1 calculation:
  
-^ Soft Gain ^ VC Range ^+^ Soft Gain (Response) ^ VC Range ^
 | 50dB - 120dB | 40dB | | 50dB - 120dB | 40dB |
 | 40dB - 49dB | 30dB | | 40dB - 49dB | 30dB |
 | 0dB - 39dB | 10dB | | 0dB - 39dB | 10dB |
  
- * if avg Soft Gain > = 50dB, then VC Range = 40dB  + * if avg Soft Gain (Response) > = 50dB, then VC Range = 40dB  
- * else if avg Soft Gain > = 40dB,  then VC Range = 30dB  + * else if avg Soft Gain (Response) > = 40dB,  then VC Range = 30dB  
- * else VC Range = 10dB+ * else VC Range = 10dB</del>
  
  
-New calculation:+Rev 2 calculation: 
 + 
 +^ Soft Gain (Response) ^ VC Range ^ 
 +| 41dB - 120dB | 40dB | 
 +| 31dB - 40dB | 30dB | 
 +| 21dB - 30dB | 20dB | 
 +| 0dB - 20dB | 10dB | 
 + 
 + * <del> if Avg Soft Gain (Response) > = 60dB, then VC Range = 50dB </del> 
 + * <del> else if Avg Soft Gain (Response) > 40dB, then VC Range = 40dB </del> 
 + * if Avg Soft Gain (Response) > 40dB, then VC Range = 40dB 
 + * else if Avg Soft Gain (Response) > 30dB, then VC Range = 30dB 
 + * else if Avg Soft Gain (Response) > 20dB, then VC Range = 20dB 
 + * else VC Range = 10dB 
 + 
 +<del>Rev 3 (2009-07-10) calculation:
  
-^ Soft Gain ^ VC Range ^+^ Soft Target ^ VC Range ^
 | 41dB - 120dB | 40dB | | 41dB - 120dB | 40dB |
 | 31dB - 40dB | 30dB | | 31dB - 40dB | 30dB |
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 | 0dB - 20dB | 10dB | | 0dB - 20dB | 10dB |
  
- * <del> if Avg Soft Gain > = 60dB, then VC Range = 50dB </del> + * if Avg Soft Target > 40dB, then VC Range = 40dB 
- * <del> else if Avg Soft Gain > 40dB, then VC Range = 40dB </del> + * else if Avg Soft Target > 30dB, then VC Range = 30dB 
- * if Avg Soft Gain > 40dB, then VC Range = 40dB + * else if Avg Soft Target > 20dB, then VC Range = 20dB
- * else if Avg Soft Gain > 30dB, then VC Range = 30dB +
- * else if Avg Soft Gain > 20dB, then VC Range = 20dB+
  * else VC Range = 10dB  * else VC Range = 10dB
  
 +NOTE: Using Soft Target (as opposed to Soft Response Gain) allows using a stable reference for calculating the VC Range before running an Autofit.  Using the Soft Response Gain requires performing an Autofit first (to obtain the response curves), and then calculating the VC Range based on those curves.  The problem that emerges from the latter is when the VC Range modifies the response curves. In Intricon products, the response curve is kept in the middle of the VC Range. So for a 20 dB range, the response curve has +10 dB and - 10 dB. For a 50 dB range, it gets modified to have +25 dB and -25 dB, but the response curve is changed as well, no longer matching the autofitted response curve.
 +</del>
  
 === Match 3kHz or Appropriate Peak === === Match 3kHz or Appropriate Peak ===
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  * Adjust overall Gain to match Soft Gain to Soft Target at 3kHz. If not OTE or RIC style instrument, then use formula to [[#match_3khz_or_appropriate_peak|match 3kHz or appropriate peak]].  * Adjust overall Gain to match Soft Gain to Soft Target at 3kHz. If not OTE or RIC style instrument, then use formula to [[#match_3khz_or_appropriate_peak|match 3kHz or appropriate peak]].
  * Equalizer  * Equalizer
-    * <del>Match all Soft Gain frequencies to Soft Target, from 3kHz and below</del> 
     * Match all Soft Gain frequencies to Soft Target, from 3kHz and below <del>(except OTE with Tubing Type => OTE Thin Tube, or RIC with Vent Type => RIC Open)</del> (NOTE: The OTE exception is no longer necessary since the introduction of REAR adjustments to avoid negative gain in low frequencies (following Steve Armstrong's algorithm)) --- //[[smayr@audina.net|Siegwart Mayr]] 2009/03/13 10:50//     * Match all Soft Gain frequencies to Soft Target, from 3kHz and below <del>(except OTE with Tubing Type => OTE Thin Tube, or RIC with Vent Type => RIC Open)</del> (NOTE: The OTE exception is no longer necessary since the introduction of REAR adjustments to avoid negative gain in low frequencies (following Steve Armstrong's algorithm)) --- //[[smayr@audina.net|Siegwart Mayr]] 2009/03/13 10:50//
-    * <del>Equalizer (except OTE with Tubing Type > OTE Thin Tube, or RIC with Vent Type > RIC Open) = Reduce 200Hz & 500Hz by 2dB</del> 
-    * <del>Equalizer (for OTE with Tubing Type > OTE Thin Tube, or RIC with Vent Type > RIC Open) = Match Soft Gain at 200Hz & 500Hz to Soft Target.</del> 
-    * <del>Equalizer (except OTE with Tubing Type > BTE Ear Hook, or RIC with Vent Type > RIC Custom Mold) = Reduce 200Hz & 500Hz by 2dB</del> 
-    * <del>Equalizer for OTE with Tubing Type > BTE Ear Hook, or RIC with Vent Type > RIC Custom Mold = Match Soft Gain at 200Hz & 500Hz to Soft Target.</del> 
     * Equalizer = Reduce 200Hz & 500Hz by 2dB     * Equalizer = Reduce 200Hz & 500Hz by 2dB
     * Equalizer for OTE with Tubing Type => OTE Thin Tube, or RIC with Vent Type => RIC Open = Reduce 1.0kHz, 4.2kHz, & 5.2kHz by 4dB.     * Equalizer for OTE with Tubing Type => OTE Thin Tube, or RIC with Vent Type => RIC Open = Reduce 1.0kHz, 4.2kHz, & 5.2kHz by 4dB.
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             * Gain = Reduce by 2dB.             * Gain = Reduce by 2dB.
  * [[#calculate_vc_range|Calculate VC Range]] (if available).  * [[#calculate_vc_range|Calculate VC Range]] (if available).
- 
- 
- 
 === Telephone === === Telephone ===
  * Perform [[#linear|Linear autofit]].  * Perform [[#linear|Linear autofit]].
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  * Show Soft Target only.  * Show Soft Target only.
  * [[#calculate_vc_range|Calculate VC Range]] (if available).  * [[#calculate_vc_range|Calculate VC Range]] (if available).
- + * Set noise reduction to low (6db)
- +
 === Music === === Music ===
  * Perform [[#normal_wdrc|Normal (WDRC) autofit]]   * Perform [[#normal_wdrc|Normal (WDRC) autofit]] 
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  * Equalizer = Increase 200Hz, 500Hz, & 1kHz by 2 dB  * Equalizer = Increase 200Hz, 500Hz, & 1kHz by 2 dB
  * [[#calculate_vc_range|Calculate VC Range]] (if available)  * [[#calculate_vc_range|Calculate VC Range]] (if available)
 + * Expansion off
  
  
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 == Archives == == Archives ==
  * [[ezfit:Autofit Environmental Algorithms Accurio|WDRC Autofit for Accurio]] (rev 2006-08-01)  * [[ezfit:Autofit Environmental Algorithms Accurio|WDRC Autofit for Accurio]] (rev 2006-08-01)
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ezfit/autofit_environmental_algorithms.1236956449.txt.gz · Last modified: 2009/03/13 11:00 by smayr
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