extension ExtPose

Pitch shifter - HTML5 Video audio FX

CRX id


Description from extension meta

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

Image from store Pitch shifter - HTML5 Video audio FX
Description from store # 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

Latest reviews

  • (2023-10-07) TheOutThereChannel: Brilliant but wont work with some of audio extensions some conflict and turns back off like it wont work with this great extension https://mybrowseraddon.com/audio-equalizer.html
  • (2023-09-17) Kimberly Anne Jacob (Yeen Asakura): doesn't work on youtube
  • (2023-07-31) an used car battery: Doesn't work on opera.
  • (2023-04-20) Rayn: even works on livestreams
  • (2023-02-14) GXY Gomi: It's amazing! Definitely worth downloading.
  • (2023-01-31) Rajaa Elhassan: absolutely life-saving if you have misophonia. i know it wasn't created for this purpose but it does the job and it's so sensory friendly. 10/10.
  • (2022-12-17) DUrbanlab cursos Protesis dentales: NO ME FUNCIONA..IT DOESNT WORK AT ALL
  • (2022-10-06) Paul von Falkenring: Sorry! I installed this addon for exactly one reason. Pitch shifting, so i don't have to retune my guitar for every song i wanna play along with YouTube ... So called "Semitones" were totally off Details: I have my guitar tuned to Standard D 440. And with literally no setting on the Semitone range of the plugin, i was able to match it to the guitar. Back to capturing and reliably pitch shift songs in my DAW again, i guess ...
  • (2022-09-08) Methos Official: doesn't work at all, at least on youtube, don't know how at other sites
  • (2022-08-30) Nika Nakaidze: Can u add more speed like 4x or more?
  • (2022-08-01) Jeff B: Seems like the shift is inconsistent. -1 "semitone" sometimes needs to be a -2 setting, sometimes not, sometimes -3. Each song seems to be different. Otherwise it's great.
  • (2022-07-08) Chiawen Chen: Pitch shift is inaccurate. Setting -3 semi-tone sounds like -1 semi-tone.
  • (2022-04-29) uikony: Doesn't rlly work D:
  • (2022-04-01) Velautham Chandrakumar: This helps so much as i recently got diplacusis which makes me hears a lower pitch on 1 ear. basically afects both ears. i can finally turn up pitch back to normal tysm sometimes glitches out the extension but its poggers tysm
  • (2022-03-12) Nico Jimenez: Pitch change (semi-tones) is really inaccurate, changed to -5 but it sounds like -4 tuned improperly.
  • (2022-03-10) Zdwojson: At the beginning of my opinion, I will start in part 1 with the assessment of the extension itself. The second part of the opinion will be about what is missing and should be found. And part of my opinion. I applaud the enlargement itself, its concept and idea. It is fine. I have a lot of fun with it and experiment with changing the pitch of the sound or the speed. It is extremely useful for music or movies. II part of my opinion. I believe there is a missing feature that extends the speed to which you can slow down a Youtube video. There is no support for speeds from 0.25 to 0.49 in Smooth and Semi-Tone modes. This should be added and patched in some future extension update. Thank you and best regards to the developer of the extension himself.
  • (2022-01-20) Ken Ryu: its best choice if u looking for transpose
  • (2021-11-17) Zaal S: Best and smooth pitch and playback shifter, forget any other shifters!
  • (2021-11-01) N A: Been using this extension for years and it's been great up until very recently when the current version stopped working on Dailymotion, please fix the issue
  • (2021-10-15) J. P.: Does what it says it does
  • (2021-08-20) Physixtential: Please add snapping to the non distorted positions as per: LIN Yueh4 Jun 2021 I tested it. The magic numbers are : +0/ +0.11/ +0.25/ +0.33/ +0.5/ +0.6/ +0.8/ +1 +0/ -0.1/ -0.2/ -0.3/ -0.4/ -0.5/ -0.55/ -0.6
  • (2021-08-12) ZENITH_ZERO: This extension worked wonderfully, without fail. Until I got a new computer. Everything but the pitch shifting works, and I've tried every pitch shifter available. Help please?
  • (2021-06-22) 아나키스트: key(x, integar) , pitch(y) formula : y = 2(2^(x/12)-1) key pitch | key pitch -1 -0.11 1 0.12 -2 -0.22 2 0.24 -3 -0.32 3 0.38 -4 -0.41 4 0.52 -5 -0.50 5 0.67 -6 -0.59 6 0.83 -7 -0.67 7 1.00 -8 -0.74 -9 -0.81 -10 -0.88 -11 -0.94 -12 -1.00
  • (2021-06-04) LIN Yueh: Nice app and the use is simple. The scale is very weird though. You have to pick smooth option and the scale is like this (after me done hours of testing) +0/ +0.11/ +0.25/ +0.33/ +0.5/ +0.6/ +0.8/ +1 +0/ -0.1/ -0.2/ -0.3/ -0.4/ -0.5/ -0.55/ -0.6 each represents a semi-tone. Hope this can be fixed.
  • (2021-05-18) Alizer: it doesnt work anymore on newer versions of chrome
  • (2021-04-12) jean-claude schwartz: Hello there. Your app is cool but this extension needs to be updated with PAL Pitch/Speed. Like for example 10.4 is PAL Pitched. It also needs more features as well.
  • (2021-02-25) samehedi: Exactly what i needed. Had to change the scale because -5 semi-tone worked best for me, so i wanted to default to that setting when turning it on. I love it, perfect for some youtubers.
  • (2021-02-06) John G. Beatrice: I use it for music or to just mess around. It helps with more precise playback speeds!
  • (2021-01-11) LIL infinity: record your audio THEN click on the extension ( thank me later)
  • (2020-11-24) Ash1mar1: I have recently ran into an issue where, when I try to use it, it gives everything an atrocious reverbing affect. This is something either you need to fix, or something I'm doing wrong. Regardless, I would appreciate feedback
  • (2020-11-16) Theodore Baswara: its cool
  • (2020-10-23) Azuki: Trash
  • (2020-10-20) Steven Latimer: I want to play along to songs in Eb standard guitar tuning without retuning my guitar. Pitch shifting down sounds really good, but pitch shifting even a semitone up sounds distorted, unfortunately making this not the best solution.
  • (2020-10-17) KittyDude YT: it doesn't work on google photos fix this or else i will never use it for the rest of my life!
  • (2020-09-17) __: Thank you! Finally I can listen to those YouTubers with annoying voice but good content.
  • (2020-09-09) Naaz Jiwa: The best, the most user-friendly. Just awesome++++
  • (2020-09-07) bobby decker: awsome and it still works in 2020 i can change the pitch and tune keep this forever and ever
  • (2020-09-02) thicc wicky 2: i mean even roblox sound shifter was better than this. it was decent, not too good but not too bad. nothing great
  • (2020-08-28) Koo Junhoe: I only discovered this to get high pitch too you just have to put the speed up from 1.0 to 1.06 it works from 1.02 1.03 1.04 and 1.05 and the same with low pitch from 1.0 to -95 so today i found out it doesnt do that anymore i dont know if its just mine but i kinda enjoyed having that but i cant seem to get it back does anyone have a solution :(
  • (2020-07-26) PaeCG: It's work but.. it can go pitch at 1.6 it 1.7 i will only faster but not pitch please fix it and 1 tab above too!
  • (2020-04-11) gonzalo quiroga: never works it sucks
  • (2020-03-29) Peter Potthoff: Great tool for musicians trying to learn a new tune. Play alomg with a YT video, and use this extension to match your guitar's pitch, rather than re-tune ! It would be great if an option to change the scale of pitch change was included to allow a more precise match, but after using it a while, you can get a very close match. Kudos to the developer !
  • (2020-02-18) bananq: Works well when slightly slowing audio and pitch shifter is effective. Great app!
  • (2020-02-02) Nuttapong Punpipat: Pitch correction isn't good. Ex. In smooth pitch, set to 1 (should be 2x of original pitch) but as I hear when compared with other music instrumental, it's about 1.49830708x or 1.5x or vary sometimes Info: Tried on youtube video, and found more bugs about pitch adjusting.
  • (2020-01-13) Shaemus Slater: Works better than the pitch shift enhancement in Windows 10. Works even better when that option doesn't exist.
  • (2019-12-12) Putra Iqmal: after adding the extension, refresh the page first before using it. remember to switch it on lol. it works fine for me ;)
  • (2019-10-31) Sam GM: Works, but the drop in audio quality is way more than any other pitch shifter I've used in the past.
  • (2019-10-19) Law: Works like a charm! Have been looking for this as others extension seems not to be working. This is very important for musician like me. I use this to lower the key of Youtube karaoke video and then I could practice the song in my key! Thank you Pitch Shifter!
  • (2019-08-13) AU Lakeside Enterprises Fan Account: This is excellent when I got tired of hearing the original voice from most videos on YouTube, Dailymotion and others. The low and high pitch settings are perfect.

Latest issues

  • (2023-03-31, v:1.6) Melquiades Gutiérrez Ruiz: hola bendiciones instale esta apicacion pero no se como abrirla
    hola bendiciones instale esta aplicacion pero no se como iabrirla
  • (2022-12-17, v:1.6) DUrbanlab cursos Protesis dentales: I ADD THE APP TO GOOGLE
  • (2022-12-17, v:1.6) DUrbanlab cursos Protesis dentales: IT DOESNT WORK
  • (2022-03-09, v:1.6) Zdwojson: Speed ​​support 0.25
    Hello. I have a suggestion for the developer of this extension. Namely, I would like an update for this extension called Pitch Shifter to provide official support for speeds from 0.49 to 0.25 in both Smooth and Seni-Tone modes. YouTube playback speeds like these are the norm. I wish the extension would apply these Movie / Premiere / Live Stream speed standards.
  • (2021-07-25, v:1.6) Dusty Rayles: pitch changer for youtube
    where is the down load???
  • (2021-05-01, v:1.6) Bradley Bliatout: I WANT A PITCH SHIFTER
  • (2021-04-14, v:1.6) Saad Yousafzai: Soundcloud
    Does this work realtime for soundcloud audio?
  • (2020-12-13, v:1.5) jean-claude schwartz: Playback needs to be linked with the pitch
    You used to be able to get a nice, high quality sounding higher pitch by setting your playback speed to between 1 and 1.05, now, the pitch stays the same whilst using playback speed slider. Also, using the pitch slider just makes the music distorted. Was there a change made?
  • (2020-12-13, v:1.5) jean-claude schwartz: Pitch needs fixing
    Hello there. Your app is cool but this extension needs to be updated with PAL Pitch/Speed. Like for example 10.4 is PAL Pitched. It also needs more features as well. When i put the playback rate at 1.04 The Pitch isn't gone up. Could you please fix this?
  • (2020-09-14, v:1.5) Buddha: Playback speed no longer changes pitch at all
    You used to be able to get a nice, high quality sounding higher pitch by setting your playback speed to between 1 and 1.05, now, the pitch stays the same whilst using playback speed slider. Also, using the pitch slider just makes the music distorted. Was there a change made?
  • (2020-09-01, v:1.5) jean-claude schwartz: Adding More Features
    Hello there. this extension needs to be updated with PAL Pitch/Speed. Like for example 10.4 is PAL Pitched. It also needs more features as well.
  • (2020-09-01, v:1.5) jean-claude schwartz: Playback rate lacks Pitch
    Could you please fix the Playback Rate because i want it to have the same level as the pitch. When i put forward the speed, the Pitch will be with it like in PAL DVD
  • (2020-06-14, v:1.5) Jeremy Motts: step function
    Hi, cool extension, but I think it would be awesome if there was a step function to turn up and down the pitch change. This would be extra awesome if it corresponds to up and down by some standard increment like key or vocal range or something.
  • (2020-02-09, v:1.5) BigAlienKid99: Adding More Features
    Hello there. this extension needs to be updated with PAL Pitch/Speed. Like for example 10.4 is PAL Pitched. It also needs more features as well.
  • (2019-04-05, v:1.5) Aviram Amar: not working
    hi, for some reason the pitch shifter not working for me. i use win 10 chrome, i do not do something special
  • (2018-10-22, v:1.5) chestofgreatness: Automatic Pitch Shift and Playback change
    When I finish watching or pause the for 24 minutes or an hour I play it again then the sound is different. I looked and the meter in Smooth mode it's still the same when I set but the sound and playback speed is still like that even in Semi-tone. Please Fix this.
  • (2018-10-12, v:1.5) Miranda Stein: Extension Won't Add
    Hi, I have downloaded the extension before and now for some reason it says it is downloading and it isn't. A popup keeps coming up saying reload or close because "it's downloading", but it isn't for some reason. Love the extension and want to have it.
  • (2018-05-31, v:1.5) doesn't work anymore !
    waz so fun !
  • (2018-05-19, v:1.5) Blanding Cassatt: Needs More Options
    Better than Realtek, which is Taiwanese, but has sound effects, equalization, and karaoke voice cancellation.
  • (2017-10-18, v:1.5) mattis n: let us disable Preserve Pitch
    Is it possible to make this change playback rate without preserving the original pitch? I want to fine-tune fine tunes like a DJ
  • (2017-10-13, v:1.5) Fidel Madrid: Not shifting by semitone
    I am pretty savvy at music and instantly recognized this issue. Essentially if you change the mode to shift the pitch by semi-tone the extension only shifts the sound a little less then half a semi-tone. A semi-tone otherwise known as a half step is for example G to G#. A full tone or a step is G to A. This is only different when you go a half step from either E or B on any octave, in both cases, a half step higher is F and C for each note respectively.
  • (2017-09-21, v:1.5) The More You Know: Doesn't' do anything
    Sounds the same to me I get no change in sound or speed ... nothing
  • (2017-09-03, v:1.5) 李立峰: Keyboard shortcuts?
    Keyboard shortcuts?
  • (2017-07-26, v:1.5) Dimitris Dimoulitsas: Pitch range
    it is a very great tool to sync your newly found track with the one turning on your technics MK2... But the pitch range based on 100% is a bit too extreeme and personally It doesn't overpass 0.80 and 1.20 My suggestion is to have some parameters to switch between -100%/ +100% AND -8% /+8% AND -16% /+16% (same than turntables) That would make the use of Pitch shifter much more precise and much more Pro ;)
  • (2017-07-20, v:1.5) 'ron 'shpatz cohen: pitch shift dosnt work
    can you help me out. downloaded the extension but it dosnt change the pitch thanks for helping out ron


47,681 history
3.9 (223 votes)
Last update / version
2021-02-07 / 1.6
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