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KioTools
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Audio Studio

What is this tool?

A chained audio-editing workspace bundling four Audio Studio tools into one flow: trim a clip, join it with others, compress the file size, and reduce echo/hiss, without re-uploading between steps.

When to use it

  • Trimming dead air from a recording, then compressing it for smaller file size
  • Joining several voice-memo takes and cleaning up echo in one session
  • Cutting a clip and immediately checking its compressed size before sharing
  • Reducing room echo on a recording right after joining multiple segments
  • Running several sequential edits on one audio file without re-uploading each time

How to use it

  1. 1Upload an audio file (or files, for Join) on any tab
  2. 2Use the tabs in whatever order your task needs (Trim, Join, Compress, De-Echo)
  3. 3Each tab's output audio becomes the next tab's starting file
  4. 4Preview the waveform and playback at each step
  5. 5Download the final WAV file once you've finished editing

Frequently asked questions

Is my audio uploaded anywhere?

No — trimming, joining, compressing and de-echoing all run locally in your browser tab.

Does De-Echo fully remove echo like professional software?

No — it uses filtering and noise-gating to reduce echo and hiss; it works best on mild room echo, not a full echo-cancellation algorithm.

What format is the final download?

WAV — a lossless format, so no extra compression artifacts are introduced during editing.

Can I join files of different formats?

Yes — each file is decoded independently before joining, so you can mix formats your browser supports.