How to Change Pitch/Key for Video Karaoke Song (MP4, WMV…) on PC and Mac

How to Change Pitch/Key for Video Karaoke Song (MP4, WMV…) on PC and Mac

In this article we want to show two of the best software to change the pitch of a video karaoke song on PC Windows and Mac OS system. The software are VIDEO MIX and KANTO KARAOKE. Please read the two solutions below.

#1. Change the Key of Video Song with Video Mix (Windows)

Video Mix is a small but powerful software to edit, join and cut video file. One of the best features of this software is the PITCH change. Here are the simple steps to follow to change the key of a video song and save it with the new pitch value.

Step 1. Download Video Mix on your Windows PC (Windows 10/8/7/Vista)

Video Mix Main screen:

Step 2. Import video file

Click on “Add Video Files” button to import your video file (avi, mp4, mov, mkv, mpg) from your PC

You will see a video image preview on the left and an audio waveform on the right. Below the waveform you can find some parameters like fade-in / fade-out, crossfade, volume, tempo and KEY (pitch).

Step 3. Change the Key (pitch)

To change key/pitch (from -12 to +12 semitons) you just need to move its cursor (as you can see from the image below)

Before saving the new video you can preview it selecting the thumbnail on the left (it will open a new window for preview).

Step 4. Choose the output video

Go on the Options menu and set the output directory, the output resolution, the output format (mp4 is the default) and the framerate.

Step 5. Export the video with the new PITCH / KEY

Finally back to the main window and click on the bottom right button “Export and Save Video” to export the output video. It will take some time to create the final video with the new pitch/key value.
The trial demo version will add a watermark on the output video. Click here to request the full version without watermark limitation.

#2. Change the Key of Video Song with Kanto Karaoke (on Windows and MAC)

Kanto Player Karaoke is a audio/video player that allows you to change (in real-time) the key (pitch) of your video karaoke songs. It supports the following video karaoke formats: AVI, WMV, MOV, MPEG, FLV and MP4.

Kanto Player for MAC is able to edit the pitch and save the video into a new video file, so you can play it with any video player.

Download Kanto Player MAC

Kanto Karaoke for Windows does not allow you to save the video with the new pitch but only allows you to play the video in real-time with the new key/pitch.

Download Kanto Player WIN

How to change Pitch with Kanto Player:

#1. Open Kanto Player and import the video karaoke files in a playlist

a) Create a Playlist: click the ADD button in the top right section to create a new playlist
b) Add a name to the playlist (example Video Karaoke)
c) Select the playlist and in the section “Playlist files” click ADD to import files in the playlist.

#2. Select the desired video song in the playlist clicking on it


#3. Change the key of MP4, AVI, FLV, WMV files

While the song plays, you can change the key in the audio settings section moving the key cursor. Then click on SAVE PITCH/TEMPO to save the new settings.

So, whenever that video karaoke will be played, the program will automatically set the key previously saved.



  1. Please disregard my comments about Key change not working. I downloaded the code-C pack but failed to install it. Key change and save are working fine.

    However, I cant record my voice with the music because my mics are not USB. My computer has a “Mic Input” that plays with the music through my speakers. Any suggestions?

    Larry P. Williams

    • You can also record through your speakers, but the sound quality is very poor…
      This is why we recommend to use USB Mic.

  2. Cannot change pitch in .mp4 recorded karaoke video.program does not work. I have loaded K Lite codecs..need it to work in trial mode before buying.

    • Try to restart your PC and then to play again…

      • Have the same issue as Bill. Installed the Trial version and installed the k-Lite codec. Rebooted System.

        Point the Kanto Audio Editor to the .MP4 file and click on the “Play Preview” button. Error message I get is “Only Sound files supported by audio editor”

        When you go to buy the Software, it clearly says Pitch and Tempo change only supported on MP3 files. Please advise

        • Kanto Audio Editor does not support MP4 file. It supports MP3, MID and KAR files only!

  3. For DVD, MPEG, or VOB files, how could I select Audio channel to play ? This is a huge feature, since there are tons of karaoke songs stored in those formats with music on 1 audio channel/track, and vocal on the other. This is the same way as different audio languages are stored in different audio channels on DVD or its related file formats. Most media players (VLC, Windows Media Player, etc.) allows audio channel selection.

    • Sorry, we still don’t have this featue in our software

  4. Can you change pitch/keys on a MP3 format song?

    • Yes, with Kanto Karaoke Player or Kanto Audio Editor you can change pirch/keys on a MP3

      • Can you also save the changed pitch/keys of your chosen MP3 songs in their entirety, and will it show you what the key has changed to after you have saved the song(s)?

  5. Will this work on songs found on You Tube?

    • Yes it works with Youtube video too.

  6. Can you change the pitch or key by only one up or down? When I change the key it always changes in multiples of two?

  7. Just solved my problem. You have to “drag” the ball to change key. I have been clicking on it. Duh!

  8. My kantoplayer is able to decrease pitch on wmv tracks only but not mp4, please advise

    • When i decrease the tempo of a mp4 karaoke track, the audio and video are not in sync. Is there a fix for this?

  9. I want to buy Kanto Karaoke and downloaded the trial version to tryout. The screen displayed “Access violation at address 069211, Read of address 000044”. How can I get it work? Thanks

    • Please try to install Windows updates…

  10. I have the full version of kanto karaoke, but i cant transpose the key of the video file, do i still have to download the codec to be able to transpose the video file such as mp4?

    • yes you have to install the codec pack…

  11. how much is the pro version and will it change the pitch on a .mp4 and allow me to save the file?

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