Editing Effects unit (section)

===Filter===
Filter effects alter the [[frequency]] content of an [[audio signal]] that passes through them by either boosting or weakening specific frequencies or frequency regions.

''[[Equalization (audio)|Equalizer]]'': An equalizer is a set of [[linear filter]]s that strengthen (''boost'') or weaken (''cut'') specific [[frequency]] regions. While basic [[Hifi|home stereos]] often have equalizers for two bands, to adjust bass and treble, professional [[graphic equalizer]]s offer much more targeted control over the audio frequency spectrum.<ref>Rudolph, Thomas; Leonard, Vincent (2001) [https://books.google.com/books?id=MFSilO_OEPAC ''Recording in the Digital World: Complete Guide to Studio Gear and Software''], Hal Leonard . p. 192.</ref> [[Audio engineers]] use highly sophisticated equalizers to eliminate unwanted sounds, make an instrument or voice more prominent, and enhance particular aspects of an instrument's tone.<ref>{{Cite book|last=Strong|first=Jeff|title=PC Recording Studios for Dummies|url=https://books.google.com/books?id=4-2SfnghnYwC&q=pc+recording+studios+for+dummies|publisher=For Dummies|year=2005|page=25|isbn=9780764577079}}</ref>

Equalizer effects: [[Boss Corporation|Boss GE-7 Equalizer]], [[MXR]] 10-band EQ Pedal.

[[File:Peter Frampton's Talk Box-3-2.jpg|thumb|left|[[Peter Frampton]]'s [[Talk box]]]]
''[[Talk box]]'': A talk box directs the sound from an electric guitar or synthesizer into the mouth of a performer using a tube, allowing the sound to be shaped into [[vowel]]s and [[consonant]]s with movements of the mouth. The modified sound is then picked up by a microphone. In this way, the guitarist is able create the effect that the guitar is talking. Some famous uses of the talkbox include [[Bon Jovi]]'s "[[Livin' on a Prayer]]", [[Songs in the Key of Life|Stevie Wonder]]'s "[[Black Man (song)|Black Man]]", [[Mötley Crüe]]'s "[[Kickstart My Heart]]", [[Joe Walsh]]'s "[[Rocky Mountain Way]]", [[Alice in Chains]]'s "[[Man in the box]]" and [[Peter Frampton]]'s "[[Show Me the Way (Peter Frampton song)|Show Me the Way]]".<ref>{{cite web|last=Dyers|first=Jon|url=http://www.dyers.org/blog/archives/2008/03/21/the-talkbox-will-never-die-a-talkbox-playlist/|title=The Talkbox Will Never Die: A Talkbox Playlist|publisher=Dyers|date=21 March 2008|access-date=20 September 2010|archive-url=https://web.archive.org/web/20100617102921/http://www.dyers.org/blog/archives/2008/03/21/the-talkbox-will-never-die-a-talkbox-playlist/|archive-date=17 June 2010|url-status=dead}}</ref><ref>{{cite web|url=http://www.blamepro.com/talkbox.htm#top|title=The Talkbox FAQ|author=McCarron, Brett|access-date=10 September 2010}}</ref>

Talk boxes: [[Dunlop Manufacturing|Dunlop HT1 Heil Talk Box]], [[Bruce Egnater|Rocktron Banshee]].<!--This article has often been used to advertise. Please list only products that 1.) have Wikipedia articles and 2. ) have been well known for a number of years and used by influential musicians-->

[[File:Thomas Organ Crybaby.jpg|thumb|right|Thomas Organ Cry Baby [[Wah-wah pedal]] (1970) manufactured by JEN]]
''[[Wah-wah pedal|Wah-wah]]'': A wah-wah pedal creates vowel-like sounds by altering the [[Audio spectrum|frequency spectrum]] produced by an instrument—i.e., how loud it is at each separate [[frequency]]—in what is known as a [[spectral glide]] or ''sweep''.<ref>{{Cite book|last1=Denton|first1=Dailey J.|title=Electronics for Guitarists|publisher=Springer|year=2011|page=183|isbn=9781441995360|url=https://books.google.com/books?id=PPg5_lPQJyMC&pg=PA185}}</ref> The device is operated by a foot treadle that manipulates a [[potentiometer]] or other electronic control. Wah-wah pedals are often used by [[funk]] and rock guitarists.<ref name="The Contemporary Guitar">Schneider, John (1985). [https://books.google.com/books?id=6-QE1jyJHgEC ''The Contemporary Guitar''], University of California Press. p. 202.</ref>

Wah effects: [[Dunlop Cry Baby]],<ref>{{Cite web |url=https://www.sweetwater.com/feature/dunlop/wah-pedals/ |title=Wah Comparison Chart | access-date= 17 August 2020 }}</ref> [[Morley Pedals|Morley Power Wah]], [[Vox (company)|Vox]].<ref>[https://voxamps.com/series/wah-pedal/ Vox V846 Wah]</ref><!--This article has often been used to advertise. Please list only products that 1.) have Wikipedia articles and 2. ) have been well known for a number of years and used by influential musicians-->

''[[Auto-wah]]'' or, more generally, envelope filter effects: A filter effect that is controlled by the volume of the input signal.<ref name="The Boss Book">''The Boss Book: The Ultimate Guide to the World's Most Popular Compact Effects for Guitar'', 2002, Hal Leonard Corporation</ref>  The most common filter type used for this effect pedal is the low-pass filter, although many designs include a toggle for band-pass or high-pass filters as well.  Additionally, some designs can switch between a down filter mode and an up filter.  This effect is commonly used in funk, reggae and jam band music.

Envelope filter effects: [[Mu-tron|Musitronics Mu-Tron III]], Electro-Harmonix Q-Tron Plus,<ref>[https://www.ehx.com/products/q-tron-plus/ Electro-Harmonix Q-Tron Plus]</ref> DOD Envelope Filter 440.<ref>[https://www.digitech.com/discontinued-products/Envelope+Filter+440.html DOD Envelope Filter 440] {{Webarchive|url=https://web.archive.org/web/20210629054118/https://www.digitech.com/discontinued-products/Envelope+Filter+440.html |date=29 June 2021 }}</ref>