SuperEQ - Revision history

Reel.Deal: add link to avs+ documentation

2022-09-18T04:54:42Z

add link to avs+ documentation

← Older revision		Revision as of 06:54, 18 September 2022
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	<div style="max-width:64em" >		<div style="max-width:64em" >
			<div {{BlueBox2\|40\|0\|3px solid purple}} >
			{{AvsPlusFullname}}<br>
			Up-to-date documentation: [https://avisynthplus.readthedocs.io/en/latest/avisynthdoc/corefilters/supereq.html https://avisynthplus.readthedocs.io]
			</div>


	'''Equalization''' (British: equalisation, '''EQ''' for short) is the process of adjusting the balance between frequency components within an electronic signal. The most well known use of equalization is in sound recording and reproduction but there are many other applications in electronics and telecommunications. The circuit or equipment used to achieve equalization is called an ''equalizer''. These devices boost or cut the energy of specific frequency bands. (source: [http://en.wikipedia.org/wiki/Equalization_%28audio%29 wikipedia:Equalization])		'''Equalization''' (British: equalisation, '''EQ''' for short) is the process of adjusting the balance between frequency components within an electronic signal. The most well known use of equalization is in sound recording and reproduction but there are many other applications in electronics and telecommunications. The circuit or equipment used to achieve equalization is called an ''equalizer''. These devices boost or cut the energy of specific frequency bands. (source: [http://en.wikipedia.org/wiki/Equalization_%28audio%29 wikipedia:Equalization])

Raffriff42: correction: float only

2017-07-06T10:54:37Z

correction: float only

← Older revision		Revision as of 12:54, 6 July 2017
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	:{{Par2\|clip\|clip\|}}		:{{Par2\|clip\|clip\|}}
	::Source clip. Audio is always converted to [[Float]].		::Source clip. Audio is always converted to [[Float]].
	::{{AvsPluscon}} no conversion is performed. Accepts ~~16-bit or~~ Float audio ~~(although Float is recommended)~~		::{{AvsPluscon}} no conversion is performed. Accepts [[Float]] audio only.

	:{{Par2\|filename\|string\|}}		:{{Par2\|filename\|string\|}}

Raffriff42: note AVS+ differences

2017-07-04T23:05:15Z

note AVS+ differences

← Older revision		Revision as of 01:05, 5 July 2017
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	\|SuperEQ(clip, string filename)		\|SuperEQ(clip, string filename)
	}}		}}

			:{{Par2\|clip\|clip\|}}
			::Source clip. Audio is always converted to [[Float]].
			::{{AvsPluscon}} no conversion is performed. Accepts 16-bit or Float audio (although Float is recommended)

	:{{Par2\|filename\|string\|}}		:{{Par2\|filename\|string\|}}
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	::Set EQ bands within your script (see [[#Band_Gain_Arguments\|Band Gain Arguments]] below).		::Set EQ bands within your script (see [[#Band_Gain_Arguments\|Band Gain Arguments]] below).

	~~In both formats, the audio will be converted to float before processing.~~
	</div>		</div>

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	'''Example 2:''' ''Boost midrange (speech) using {{FuncArg\|band}} arguments''		'''Example 2:''' ''Boost midrange (speech) using {{FuncArg\|band}} arguments''
	<div {{BoxWidthIndent\|36\|2}} >		<div {{BoxWidthIndent\|36\|2}} >
			[[ConvertAudioToFloat]]
	SuperEQ(		SuperEQ(
	\ 0, [* 0 - 65 *]		\ 0, [* 0 - 65 *]

Admin: /* Requirements */

2016-06-21T15:28:45Z

Requirements

← Older revision		Revision as of 17:28, 21 June 2016
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	== Requirements ==		== Requirements ==
	<div style="max-width:68em" >		<div style="max-width:68em" >
	This ~~plugin~~ is optimized for processors which have cache equal to or greater than 128k bytes (163832sizeof(float) = 128k). This plugin won't work efficiently with K6 series processors.		This filter is optimized for processors which have cache equal to or greater than 128k bytes (163832sizeof(float) = 128k). This plugin won't work efficiently with K6 series processors.
	</div>		</div>


	== Changes ==		== Changes ==

Admin: /* Preset Files */

2016-06-21T14:15:54Z

Preset Files

← Older revision		Revision as of 16:15, 21 June 2016
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	comment		comment
	(text after the first 18 non-empty lines ignored)		(text after the first 18 non-empty lines will be ignored)
	</div>		</div>
	To give a very rough indication of the frequency response of the above example, here is a screenshot of an [http://audacityteam.org/ Audacity] spectrum analysis of processed [http://en.wikipedia.org/wiki/White_noise white noise] (which should be approximately flat without equalization, allowing for low-frequency variability)		To give a very rough indication of the frequency response of the above example, here is a screenshot of an [http://audacityteam.org/ Audacity] spectrum analysis of processed [http://en.wikipedia.org/wiki/White_noise white noise] (which should be approximately flat without equalization, allowing for low-frequency variability)

Admin: /* Preset Files */

2016-06-21T14:14:20Z

Preset Files

← Older revision		Revision as of 16:14, 21 June 2016
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	{{NotaBene3\|A ''Preset'' file is a text file with a positive or negative integer on each line. Nothing else is allowed on the line, except white space. Empty (blank) lines are ignored. Each line sets the gain in [http://en.wikipedia.org/wiki/Decibel decibels] for a frequency band. All text after the first 18 non-empty lines is ignored, allowing you to add comments to the file.}}		{{NotaBene3\|A ''Preset'' file is a text file with a positive or negative integer on each line. Nothing else is allowed on the line, except white space. Empty (blank) lines are ignored. Each line sets the gain in [http://en.wikipedia.org/wiki/Decibel decibels] for a frequency band. All text after the first 18 non-empty lines is ignored, allowing you to add comments to the file.}}

	Preset files can be found in your \~~AviSynth25~~\Examples folder (Equalizer Presets.zip), available online [http://avisynth2.cvs.sourceforge.net/viewvc/avisynth2/avisynth/distrib/Examples/Equalizer%20Presets.zip here], or may be found by searching the Web for "foobar2000 presets."		Preset files can be found in your \AviSynth\Examples folder (Equalizer Presets.zip), available online [http://avisynth2.cvs.sourceforge.net/viewvc/avisynth2/avisynth/distrib/Examples/Equalizer%20Presets.zip here], or may be found by searching the Web for "foobar2000 presets."

	{{HiddenH5\|Example: Using a Preset file}}		{{HiddenH5\|Example: Using a Preset file}}

Admin: /* Syntax and Parameters */

2016-06-21T14:07:35Z

Syntax and Parameters

← Older revision		Revision as of 16:07, 21 June 2016
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	::Set EQ bands within your script (see [[#Band_Gain_Arguments\|Band Gain Arguments]] below).		::Set EQ bands within your script (see [[#Band_Gain_Arguments\|Band Gain Arguments]] below).

	In both ~~cases~~, the audio will be converted to float before processing.		In both formats, the audio will be converted to float before processing.
	</div>		</div>

Admin: /* Syntax and Parameters */

2016-06-21T14:03:19Z

Syntax and Parameters

← Older revision		Revision as of 16:03, 21 June 2016
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	:{{Par2\|filename\|string\|}}		:{{Par2\|filename\|string\|}}
	::Set EQ bands from a preset file (see [[#Preset_Files\|Preset Files]] below)		::Set EQ bands from a preset file (see [[#Preset_Files\|Preset Files]] below).

	{{FuncDef		{{FuncDef
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	:{{Par2\|band1, ..., band18\|int\|}}		:{{Par2\|band1, ..., band18\|int\|}}
	::Set EQ bands within your script (see [[#Band_Gain_Arguments\|Band Gain Arguments]] below)		::Set EQ bands within your script (see [[#Band_Gain_Arguments\|Band Gain Arguments]] below).

	In both cases, the audio will be converted to float before processing.		In both cases, the audio will be converted to float before processing.
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	:''(shown being fed a 400 Hz tone)''		:''(shown being fed a 400 Hz tone)''
	</div>		</div>


	== Requirements ==		== Requirements ==

Admin at 13:59, 21 June 2016

2016-06-21T13:59:17Z

← Older revision		Revision as of 15:59, 21 June 2016
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	'''Equalization''' (British: equalisation, '''EQ''' for short) is the process of adjusting the balance between frequency components within an electronic signal. The most well known use of equalization is in sound recording and reproduction but there are many other applications in electronics and telecommunications. The circuit or equipment used to achieve equalization is called an ''equalizer''. These devices boost or cut the energy of specific frequency bands. (source: [http://en.wikipedia.org/wiki/Equalization_%28audio%29 wikipedia:Equalization])		'''Equalization''' (British: equalisation, '''EQ''' for short) is the process of adjusting the balance between frequency components within an electronic signal. The most well known use of equalization is in sound recording and reproduction but there are many other applications in electronics and telecommunications. The circuit or equipment used to achieve equalization is called an ''equalizer''. These devices boost or cut the energy of specific frequency bands. (source: [http://en.wikipedia.org/wiki/Equalization_%28audio%29 wikipedia:Equalization])

	'''SuperEQ''' (''Shibatch Super Equalizer'') is a [http://en.wikipedia.org/wiki/Equalization_%28audio%29#Graphic_equalizer graphic] ~~equalizer~~, originally created as a plugin for Winamp by [http://shibatch.sourceforge.net/ Naoki Shibata]. SuperEQ uses 16383th order [http://en.wikipedia.org/wiki/Finite_impulse_response FIR] filters using [http://en.wikipedia.org/wiki/Fast_Fourier_transform FFT]. Its equalization is very precise. Note that unlike traditional equalizers, there is very little [http://en.wikipedia.org/wiki/Roll-off roll-off] or overlap between the bands.		'''SuperEQ''' (''Shibatch Super Equalizer'') is a [http://en.wikipedia.org/wiki/Equalization_%28audio%29#Graphic_equalizer graphic equalizer], originally created as a plugin for Winamp by [http://shibatch.sourceforge.net/ Naoki Shibata]. SuperEQ uses 16383th order [http://en.wikipedia.org/wiki/Finite_impulse_response FIR] filters using [http://en.wikipedia.org/wiki/Fast_Fourier_transform FFT]. Its equalization is very precise. Note that unlike traditional equalizers, there is very little [http://en.wikipedia.org/wiki/Roll-off roll-off] or overlap between the bands.
	</div>		</div>

Admin at 16:02, 15 May 2016

2016-05-15T16:02:32Z

← Older revision		Revision as of 18:02, 15 May 2016
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	{{FuncDef		{{FuncDef
	\|SuperEQ(clip, ~~float~~ ''band1'' [, ~~float~~ ''band2'', ..., ~~float~~ ''band18'' ] )		\|SuperEQ(clip, int ''band1'' [, int ''band2'', ..., int ''band18'' ] )
	}}		}}

	:{{Par2\|band1, ..., band18\|~~float~~\|}}		:{{Par2\|band1, ..., band18\|int\|}}
	::Set EQ bands within your script (see [[#Band_Gain_Arguments\|Band Gain Arguments]] below)		::Set EQ bands within your script (see [[#Band_Gain_Arguments\|Band Gain Arguments]] below)

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	==== Band Gain Arguments ====		==== Band Gain Arguments ====
	<div style="max-width:68em" >		<div style="max-width:68em" >
	From Avisynth version 2.60, '''band gain arguments''' allow all 18 {{FuncArg\|bands}} to be set within your script, instead of requiring a preset file. The values are specified in decibels, in ~~floating point or~~ integer format.		From Avisynth version 2.60, '''band gain arguments''' allow all 18 {{FuncArg\|bands}} to be set within your script, instead of requiring a preset file. The values are specified in decibels (in integer format).

	{{HiddenH5\|Example: Using ''band'' arguments}}		{{HiddenH5\|Example: Using ''band'' arguments}}
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	== Changes ==		== Changes ==
	{\| border="1"		{\| border="1"
			\|-
			\| v2.61
			\| The band gain arguments can only be int. It's now enforced as such.
	\|-		\|-
	\| v2.60		\| v2.60