Pitch shifter - HTML5 Video audio FX
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Pitch shifter - HTML5 Video audio FX


228 ratings

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Pitch shift the audio in HTML5 videos on any webpage, e.g., YouTube

# Now fixed for Facebook and YouTube, plugin should handle new videos loading in and changing # Pitch shifts audio from HTML5 Video sources on a page, without changing the playback rate (unless you want it to). Potential use cases: Fixing the voice of a too whiney youtuber. A satanic version favourite movie clip. Or a chipmunk remix of a legendary rap song. Does NOT save any of your data to a remote server. Does NOT load the pitch shifter on webpage until you enable it (won't needlessly slow your computer down). Troubleshooting --------------- If you get no audio from the video it may be that the video is an ad from a different site and the CORS policy prevents us from altering the sound. We're looking at ways of detecting this. --- v1.5 8 Feb 2017 - Fixed bug no pitch-shifting bug on Chrome 56. Seems there was an API change/fix so thath AudioParam.setTargetAtTime(target, startTime, timeConstant) required startTime to use the currentTime from the Audio Context, not a relative time (we were using 0). Change log: v1.4 15 Feb 2016 - Range of semitones is -24/+24, which gives the same range as the "smooth" option, and is the same range as v1.2 v1.3 12 Feb 2016 - Fix issue with pitch shifting in tones not semitones. Thanks for the bug report guys! v1.2 27 Oct 2015 - Pitch shift by semi-tones, experimental feature. Change mode using select box between classic smooth and new semi-tones. - Fix bug where playback rate was not persisted when a video changed. --- Nerdy stuff: Uses Chris Wilso's Pitch Shift effect: https://github.com/cwilso/Audio-Input-Effects Tonal pitch shift is based off statical "line of best fit" from mmckegg: https://github.com/mmckegg/soundbank-pitch-shift Source code: https://github.com/foxdog-studios/pitch-shifter-chrome-extension

3.9 out of 5228 ratings

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H O XMay 6, 2024

I have been using this for years. I absolutely love it, very useful.

1 person found this review to be helpful
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Il IlApr 5, 2024

Stopped working in Vivaldi browser a while ago... needs updating.

1 person found this review to be helpful
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Marco Andrés Folsch WolfMar 19, 2024

Very useful, this deserve more recognition, althought the quality of the pitch is not that good like a professional app but it does the job


  • Version
  • Updated
    February 7, 2021
  • Size
  • Languages
    English (UK)
  • Developer
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.


The developer has disclosed that it will not collect or use your data.

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  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes


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