Pitch Tempo Changer

[ ALL FEATURES FREE & NO FULL-SCREEN ADS FOR BASIC USE ] ■ Basic Features (Pitch, Tempo & Formant): 100% FREE, with no full-screen ads during standard use. Adjust Pitch, Tempo, and Formant directly from the main-screen sliders. ■ Advanced Options: Also 100% FREE. Occasional full-screen ads may appear only when opening advanced settings. Permanent ad removal is available with a small one-time purchase. This audio & video speed changer and pitch shifter lets you import MP4, MKV, WAV, and MP3 files, extract audio for waveform editing, and play or export as MP3/WAV while independently adjusting Pitch, Tempo, and Formant. With A-B looping, playback marking, waveform editing, and vocal processing, it is ideal for music transcription, vocal practice, dance routines, language learning, and audio analysis. User Guide: https://docs.google.com/presentation/d/1-CiSm_HoQ2uj7i5kC6GYXp-t2trgR2VpggGeFxr0b3Q/preview ● RECOMMENDED FOR ・Musicians & Transcribers: Slow down fast solos, change keys for vocal covers, isolate instruments, and practice ear training. ・Singers & Vocalists: Transpose backing tracks to your vocal range, practice karaoke, and change vocal character with formant shifting. ・Dancers & Choreographers: Slow down video audio to practice dance steps and choreography. ・Language Learners & Students: Adjust speech speed for listening practice, dictation, podcasts, and audiobooks without changing pitch. ● AUDIO QUALITY & CORE FEATURES ・Wide Range: 25%–400% tempo and ±1 octave pitch adjustment. ・Three Core Sliders: Pitch, Tempo, and Formant are available directly on the main screen. ・Video Import: Import MP4/MKV, extract audio, edit Pitch/Tempo/Formant, and export as MP3/WAV—no separate converter required. ・Automatic Frequency Compensation: Restores weak bass on pitch-up and thin treble on pitch-down. ・Attack Clarity Enhancement: Suppresses "doubling" artifacts on drum and percussion attacks. ・Flexible Export: Lossless WAV or MP3 at 96–320 kbps. ● ADVANCED VOCAL & FORMANT ENGINE Our C++-powered DSP engine provides detailed control over vocal character while maintaining natural-sounding results. ・Natural Formant Shift: Change vocal character and perceived voice characteristics without changing pitch. ・Voice Texture (Cepstral): Adjust envelope resolution, with Auto available. ・Vocal Cavity Protection: Prevents unnatural vocal tract and mouth scaling during formant shifts, reducing "giant mouth" artifacts. ・Cepstral Envelope Fade: Smooths spectral peak transitions. ・High-Frequency Protection: Prevents excessive processing of breath sounds and cymbals. ・Low-Energy Frame Bypass: Skips quiet frames to prevent background noise amplification. ・Pitch Protection: Prevents melody breakdown from unnatural high-frequency pitch or harmonic shifts. (2026/8 new!) ● PRACTICE & EDITING TOOLS ・Vocal Remover & Extractor: Center-channel cancellation to remove or isolate lead vocals. Results depend on the source. ・Track Decomposition: Isolate sounds based on stereo positioning. ・Micro-Pitch / Micro-Formant: 5-cent (1/20 semitone) precision for tape/vinyl drift, instrument tuning, and microtonal adjustments. ・High-Quality Mode: Phase Vocoder processing for clearer time-stretching and richer harmonic detail. ・Spot Pitch Correction: Correct pitch only in selected waveform areas. Guide: https://youtube.com/shorts/I1BFM18fjDw ・Practice Session Save: Save loop points, bookmarks, presets, and song-specific settings. Professional audio processing on mobile—no DAW required. ● 100% LOCAL PROCESSING & PRIVACY All audio and video processing is performed locally on your device. Your media files are not uploaded to a server for processing. [ NEED A LIGHTER PLAYER FOR QUICK PRACTICE? ] Try our lightweight spin-off, "Pitch Tempo Changer Flash"—designed for instant playback, background listening, and multiple setlists without complex editing. [ COMMUNITY ] Special thanks to Mostafiz for the beautiful app icon!