When should I use time stretching instead of resampling?

Use time stretching when pitch should remain stable while duration or tempo changes. Choose resampling when speed and pitch should change together.

Is a looper different from concatenating a clip?

Yes. audio-looper targets a seamless musical or ambient join; audio-loop-concat simply repeats the complete file.

How do I align a remix to another track?

Start with audio-beat-matcher, then use a pitch-preserving tempo or stretch tool and listen for transient drift.

Audio Pitch, Tempo, Looping, and Reverse Playback Tools

Audio Pitch, Tempo, Looping, and Reverse Playback Tools | Elysia Tools

Start with the intended movement

This hub is for edits where timing, pitch, or playback direction changes the identity of the audio. Define whether you need beat alignment, a slower practice track, a seamless ambience loop, a reversed transition, or a stutter accent.

Pick the least destructive path

Use time stretching when tempo must change but notes should stay stable. Use resampling when the combined speed-and-pitch change is the desired tape or chipmunk character.

Shape and verify the ending

Use the looper for a seamless repeat and concatenation for a basic repeat. Reverse and stutter should be deliberate accents. Compare the render with the original, check joins and duration, then deliver.

Before you start

Prepare a representative audio clip and note its current tempo, pitch, and duration when known.
Decide whether the result should preserve pitch, preserve duration, align to a beat grid, or create an intentional effect.
Keep an untouched source and label each intermediate render.

Workflow playbook

A deliberate workflow for audio pitch, tempo, looping, and reverse edits

1
Measure the timing target
Compare source and destination BPM or duration with audio-beat-matcher before choosing a tempo path.
2
Apply pitch and time changes
Use audio-set-pitch for pitch-only edits, audio-time-stretch-pitch for separate control, or audio-resample-speed for intentional varispeed.
3
Build the remix ending
Create a seamless repeat with audio-looper, concatenate a simple repeat with audio-loop-concat, or add a deliberate reverse or stutter accent.

Choose the right path

Choose the transformation that protects the creative intent

Use audio-time-stretch, audio-tempo-change, or audio-set-speed when tempo should change while pitch stays stable; choose audio-resample-speed for a tape-like speed-and-pitch change. For a clean loop use audio-looper, for a straightforward repeated file use audio-loop-concat, and use audio-reverse or audio-stutter only when the effect is part of the design.

Done when

The final clip has the intended pitch, tempo, duration, and playback direction.
Loop joins and beat alignment are usable in the target mix.
The export is checked against the source and chosen intermediate.

Audio Pitch, Tempo, Looping, and Reverse Playback Tools

Continue with adjacent topic clusters

Start with the intended movement

Pick the least destructive path

Shape and verify the ending

Before you start

A deliberate workflow for audio pitch, tempo, looping, and reverse edits

Measure the timing target

Apply pitch and time changes

Build the remix ending

Choose the right path

Choose the transformation that protects the creative intent

Done when

Audio Segmentation and Chapter Workflows

Audio Reverb, Modulation, and Sound Design Effects Tools

Audio Measurement and Inspection

Audio Beat Matcher

Audio Set Pitch

Audio Time Stretch & Pitch

Audio Resample Speed

Audio Looper

Audio Loop Concat

Audio Reverse

Audio Stutter