SEK Pitch Shifter

We believe that everyone can sing and will sing well with a little help and the right keys for their songs. Therefore, we created SEK Pitch Shifter to help you create key-changed karaoke videos and sing more comfortably.

Pitch Shifter is a Windows-based program to create key-changed karaoke videos. The main features are online video downloading (supports over 400 websites), pitch shifting, time stretching, vocal removal, and audio extraction.

The pitch-shifting function allows switching between male and female keys in just a second while retaining high audio quality. The vocal removal feature generates instrumentals from any of your favorite music videos. It is a very light-weight implementation of the Spleeter algorithm. Our software is one of the best pitch shifting programs that are currently available and it is designed as a spreadsheet program to help process and organize music files in bulk. Just load the spreadsheet up and you are ready for your party!

This software is employed in our YouTube karaoke channels: "YouSingCountry", "Skill Express Acoustic Karaoke"

To use the program, the user enters URLs or local paths to the videos, specify audio editing options, and execute.

SYSTEM REQUIREMENTS: 64-bit Windows 7, 8, or 10; and Microsoft Excel 2007 and above.

Version 2.0 Updates:

- - Improved EQ for vocal removal algorithm.
  - Full control of videos and audio from the interface.
  - Processing time reduced by half.

real-time pitch changer

Prefer something light-weight that can change pitch and speed in real-time? Try Rubber Band

Rubber Band is a convenient and flexible tool for changing the speed and pitch of audio recordings in real-time. It is designed for fast and easy operation that can handle most of the audio formats.

While it does not have the video downloading capability like the Pitch Shifter, Rubber Band does provide different advanced features such as BPM detection, tempo controls, and a huge range of usable stretch factors.

Music Key Finder

Ever wonder "which key is this song in?" Wonder no more ...

Music Key Finder is a software to find the musical keys of songs in bulk.

Simply drag and drop any of your tracks into the dropzone and hit the "Run Batch Analysis" button and voila.

Chord Analyzer

Chord Analyzer is a powerful application that analyses the chords of any music file in your computer.

You can use it to analyze the tonal features (harmony, chords...) of your digital music and explore them by navigating along the song using different useful views.

Key bindings and mouse interactions for song navigation are designed from a prospective of a musician with an instrument at hands.

Beat Detection (BeatRoot)

BeatRoot is a java application that helps you:

- Display of Number of Beats
- Display Length of Audio file
- Swapped mouse buttons for inserting beat (from middle to right button) and deleting beats (right to middle)
- Magnetic beat line (insert or move a beat line with CTRL and it jumps to the nearest detected onset)
- Selecting part of audio file: sensitive region enlarged to 30 pixel range
- Make panel resizable in both directions (and redraw in x dimension so as to use the entire width of the modern big screens)
- Scroll display in x dimension (+ key shortcuts with the arrow keys)
- Save beats: updates the extension from .wav to .tmf automatically
- Added two sliders to control two parameters of the onset detection. This is helpful when you have audio files with too many or too few onsets detected.