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en:wiki:funktionen:td-functions:windows_blackman [24/06/2016 15:29] ulien:wiki:funktionen:td-functions:windows_blackman [01/01/2021 15:56] – [Windows Blackman] hamish
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 **This page is not fully translated, yet. Please help completing the translation.** \\ **This page is not fully translated, yet. Please help completing the translation.** \\
 //(remove this paragraph once the translation is finished)// //(remove this paragraph once the translation is finished)//
-====== Windows Blackman ======+====== Windows (example: Blackman Optimal) ======
  
 {{:bilder_funktionen:td_windows_blackman.png?nolink&}} {{:bilder_funktionen:td_windows_blackman.png?nolink&}}
  
-\\ +<font 14px/Arial, sans-serif;;initial;;#ffffff>**Description:**</font> 
-**Description:**+ 
 +<font 14px/Arial, sans-serif;;initial;;#ffffff>In general, a window causes the fading in and out of the amplitude of the impulse at the beginning and end.</font> 
 + 
 +<font 14px/Arial, sans-serif;;initial;;#ffffff>Like the fade-in or fade-out of a piece of music, it prevents an abrupt stop. An abrupt stop can create high-frequency energy in the impulse that is not intended or desirable.</font> 
 + 
 +[[https://de.wikipedia.org/wiki/Fensterfunktion|Recommended article explaining windows: https://en.wikipedia.org/wiki/Window_function]]
  
 \\ \\
-**Options:**+<font 14px/Arial, sans-serif;;initial;;#ffffff>**Options:**</font> 
 + 
 +<font 14px/Arial, sans-serif;;initial;;#ffffff>//Window type://** **selects the window function, see Wikipedia article above. Blackman Optimal is standard in Acourate.</font> 
 + 
 +<font 14px/Arial, sans-serif;;initial;;#ffffff>//Result Curve// : stores the result in the specified memory bank.</font> 
 + 
 +<font 14px/Arial, sans-serif;;initial;;#ffffff>//Orientation symmetric// : fades mirror-symmetrically from the absolute center of the pulse file</font> 
 + 
 +<font 14px/Arial, sans-serif;;initial;;#ffffff>//Orientation right / left of pos// : only fades to the left or right of the peak position (peak is determined automatically)</font> 
 + 
 +<font 14px/Arial, sans-serif;;initial;;#ffffff>//Orientation pos symm// : fades mirror-symmetrically from the peak position (peak is determined automatically)</font> 
 + 
 +<font 14px/Arial, sans-serif;;initial;;#ffffff>//Orientation R window width// : fades out to the right of the specified position within the given sample length.</font>
  
 \\ \\
-**Application:**+<font 14px/Arial, sans-serif;;initial;;#ffffff>**Use:**</font> 
 + 
 +<font 14px/Arial, sans-serif;;initial;;#ffffff>An impulse can be brought smoothly to zero at the end or the beginning or both.</font> 
 + 
 +<font 14px/Arial, sans-serif;;initial;;#ffffff>If a pulse does not begin or end with 0, the resulting sharp "corner" in the impulse creates high freqency components in the impulse that are usually not intended or desirable.</font>
  
 \\ \\
-**Example:**+<font 14px/Arial, sans-serif;;initial;;#ffffff>**Example:**</font> 
 + 
 +<font 14px/Arial, sans-serif;;initial;;#ffffff>After multiple convolutions or in some extreme cases, comb filtering or interference can occur. Then check the endpoints of the impulse, which may be non-zero. Secondary impulses can also appear at the end after such calculations. These can be eliminated by windowing.</font> 
 + 
 +<font 14px/Arial, sans-serif;;initial;;#ffffff>If an already windowed pulse is shortened to an extreme, it can possibly be cut off before it has naturally dropped to zero. Windowing gently fades this out.</font> 
 + 
 +<font 14px/Arial, sans-serif;;initial;;#ffffff>The Blackman Optimal Window offers a wide, gently tapered window, ideal for long impulses or high-frequency corrections.</font> 
 + 
 +<font 14px/Arial, sans-serif;;initial;;#ffffff>The cosine-tapered 50% window offers a short fade in / out which can be useful for the maximum use of particularly short filters (1024 tabs for MiniDSP), or extreme phase correction in the deep bass.</font>
  
  
en/wiki/funktionen/td-functions/windows_blackman.txt · Last modified: 01/01/2021 15:56 by hamish

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