Differences

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--- ezfit:autofit_environmental_algorithms [2009/07/09 15:42]
smayr
+++ ezfit:autofit_environmental_algorithms [2016/04/08 09:50] (current)
smayr [Theater/Place of Worship]
@@ Line 36: / Line 36: @@
  * 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//
+ * 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//
@@ Line 42: / Line 42: @@
  * 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 |
 | 40dB - 49dB | 30dB |
 | 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 |
 | 31dB - 40dB | 30dB |
@@ Line 62: / Line 77: @@
 | 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
+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 ===
@@ Line 212: / Line 227: @@
             * Gain = Reduce by 2dB.
  * [[#calculate_vc_range|Calculate VC Range]] (if available).
 === Telephone ===
  * Perform [[#linear|Linear autofit]].
@@ Line 230: / Line 242: @@
  * Show Soft Target only.
  * [[#calculate_vc_range|Calculate VC Range]] (if available).
+ * Set noise reduction to low (6db)
 === Music ===
  * Perform [[#normal_wdrc|Normal (WDRC) autofit]]
@@ Line 241: / Line 251: @@
  * Equalizer = Increase 200Hz, 500Hz, & 1kHz by 2 dB
  * [[#calculate_vc_range|Calculate VC Range]] (if available)
+ * Expansion off
@@ Line 325: / Line 336: @@
 == Archives ==
  * [[ezfit:Autofit Environmental Algorithms Accurio|WDRC Autofit for Accurio]] (rev 2006-08-01)