Up Tempo: Pitch, Speed Changer
Stonekick
Music Speed Changer
inVerseByte Software
Video Voice Changer + Effects
Firehawk
Pitch Perfect (Pitch Pipe)
DepollSoft
Transpose - tube pitch changer
joh9911
Pitch Shifter
Music Topia, LLC
Karaoke Pitch Changer
Craftbox Technology
Pitch Gauge
Pitch Gauge LLC
Pitch Tuner
Jakob Wankel
Vocal Pitch Monitor
TadaoYamaoka