What's New

Now the aif-aifc-aiff-au-snd-wav audio files are exported at 24 bit

App Description

A simple and intuitive application that allow you to quickly change the pitch and the speed in real time of your audio tracks.
This tool is useful in the case of post production of commercials, dialogues or when it is necessary for an audio file to have a well-defined duration or intonation.

Features:
- load your audio track (stereo or mono);
- change the zoom, the resolution and the color of the waveform;
- change the playing point and waveform selection;
- play the track and look at the VUMeter;
- change the pitch and the speed in real time;
- set a custom duration of audio file (with automatic speed change);
- apply global gain, equalisation, reverb, distortion and delay;
- check the new track duration after speed changing;
- export the selected portion of the track.

Supported audio formats:
- aac, adts, aif, aiff, aifc, caf, mp4, m4a, snd, au, wav

iPhone Screenshots

(click to enlarge)

Audio Spring screenshot 1 Audio Spring screenshot 2

App Changes

  • June 16, 2019 Initial release
  • June 29, 2019 New version 1.2
  • August 16, 2019 New version 1.3
  • October 07, 2019 New version 1.4
  • December 03, 2019 New version 1.5
  • July 14, 2020 New version 1.8
  • December 09, 2020 New version 1.9
  • August 06, 2021 New version 1.11
  • October 04, 2023 New version 1.17