Pitch Fix processor corrects, adjusts and fixes the tuning of any audio service.
Pitch Train is for learning perfect pitch. The user selects notes to be used for quizzing, and Pitch....
Serato Audio Research
It is a time-stretching and pitch-shifting program plug-in.
Play Pitch with dozens of computer opponents or online against real people.
Pitch Pipe Products
The Pitch Pipe Bagpipe Tuner is real-time pitch detection tuning app.
A program that allows you to change the speed of any audio file in MP3.
MP3 Key Changer is a small tool able to change the key of MP3 files.
Make your own sound mixes from MP3, WAV or WMA easily and intuitively.
Crazy Boomerang Software
MP3 Speed Changer is a program that enables you to speed up audio files.
MP3 Speed is a freeware which changes the speed of MP3 files.
Full-featured audio editing tool suitable for MP3 and other audio file formats.
TFM Group 
FREE RealTime MP3 Mixing Machine with Pitch control,CrossFade control and more.
Change the pitch of any MP3 song without changing tempo. Great for musicians.
Chronotron Pro allows to change pitch without affecting temp and/or change tempo.
Seventh String Software
TransScribe Soft can change pitch and speed instantly .
Abyss Media Company
Change the pitch and tempo of a sound track in real time.
Gulf Coast Applications
Cross-fade two songs with a delay interval and change the pitch individually.
RiffMaster Pro Team
It allows you to change the speed and pitch of any song and create loops.
Inspyder Software Inc.
Speed up, slow down and change the key of any song! Get Pitch Switch today.
Audio Pitch Filter is a powerful transform filter that allows change the audio.
Change your voice pitch and send out cute sound emotions in Skype call.