Pitch Tempo Changer

DS soft

Contains adsIn-app purchases

About this app

[ ALL FEATURES FREE & NO FULL-SCREEN ADS FOR BASIC USE ]
- Basic Features (Pitch & Tempo): Completely FREE. NO full-screen ads are shown during these standard operations.
- Advanced Options: All extra features are also FREE to use. (Full-screen ads may appear only when accessing these advanced options).
- Ad-Free Option: Remove all ads permanently for a very small, one-time fee (less than the price of a simple snack!).

This app allows you to load audio data (WAV/MP3) and play or save it (in MP3 format) while independently adjusting the pitch and tempo and formant.

Equipped with a playback marking, repeat feature, it is the perfect tool for transcribing music by ear or practicing English listening.

User Guide is Here:
https://docs.google.com/presentation/d/1-CiSm_HoQ2uj7i5kC6GYXp-t2trgR2VpggGeFxr0b3Q/preview?slide=id.g3b1b708bddd_0_0

*Original files are never overwritten or deleted.

● Our Commitment to Audio Quality
Note: To support a wide range of uses—from music transcription to voice changing—this app allows for an exceptionally wide adjustment range (25%–400% tempo / ±1 octave pitch). Due to the nature of digital audio processing, extreme settings may result in echoes or artifacts. You can often mitigate these by adjusting the ”High Quality Mode” in the options menu.

1.Automatic Frequency Compensation: Traditional pitch shifters often suffer from weak bass when the pitch is raised or weak treble when it is lowered. This app includes an option to automatically compensate for these frequency bands, mitigating these issues.

2.Attack Clarity Enhancement: an option to suppress the "doubling" effect often heard in the attack of drums and percussion when raising the pitch or slowing down the tempo.

3.Flexible Export Settings: When saving as an MP3, you can select the bit rate (96–320 kbps). This allows you to find the perfect balance between storage space and audio quality.

4.Formant Shift (Jan , 2026): Enjoy voice-changing capabilities! By adjusting the intensity, you can achieve natural-sounding formant shifts tailored to your preference.

5.Vocal Extraction & Removal (Jan , 2026): Features a center-cancel function to extract or remove vocals. (Note: This does not apply to tracks where vocals are panned to the left or right.)

6.Track Decomposition (Jan , 2026): Analyze audio to identify and isolate sounds based on their stereo positioning (panning), allowing you to remove specific elements. (Note: Precision depends heavily on the original audio quality and applied effects.)

7. Micro-Pitch Adjustment (Feb , 2026): Precision pitch shifting in 5-cent increments (1/20th of a semitone).
This allows for professional-grade fine-tuning, such as:
- Correcting subtle pitch drifts in digitized vinyl records or old tape recordings.
- Adjusting modern recordings to historical temperaments (e.g., Baroque pitch at 415Hz).
- Fine-tuning instruments that are slightly out of tune without losing audio character.

8. High-Quality Mode (March , 2026): a high-quality mode using Phase Vocoder. This mode allows for clearer pitch and tempo changes than ever before, while maintaining the richness and richness of the sound. (This requires heavy processing time, so please use it appropriately depending on your needs.)

9. Spot Pitch Correction (March , 2026):a feature to select specific areas of the waveform and apply pitch correction only to those spots.
Check out the operation guide in this video:
https://youtube.com/shorts/I1BFM18fjDw
(Please copy and paste the URL into your browser to watch.)

The standout feature of this app is the ability to perform these advanced operations easily, without the need for a DAW or waveform editing software.

[ AD-FREE OPTION ]
For those who want to work without ads and concentrate, we offer an option to permanently remove all ads for a small one-time purchase. (Please check the local price in your currency on the purchase screen.)

What’s new

Bookmarks and repeat points can be moved by flicking.
WaveForm area zoom factor increased up to 50x
Improved melody extraction accuracy in Pitch View.
Layer notes in Pitch View(Like Piano Roll).
Implemented zoom function for the waveform area.
Implemented partial pitch correction function.
Supports switching between waveform view and pitch view.
You can now set repeats between them by flicking the WaveForm area.
You can now trim by long-tapping the WaveForm area.