Audio Trim by Wiro: Precise Clip Cutter

Overview

Audio Trim by Wiro cuts a single section out of an existing audio recording. You set a start point, then choose either an end point or a clip length. It returns a new audio file that contains only the selected segment, which helps you ship clean clips without a full editor.

What you can build

• Podcast teasers by clipping a quote from a long episode
• Short sound bites for social posts
• Ringtones or notification sounds from a longer track
• Training datasets by extracting consistent-length segments
• QA workflows that standardize “first 15 seconds” samples from user uploads
• Trimmed intros and outros for voiceovers and narration

Inputs

• One source audio file to trim. You can upload a file or provide a direct file URL.
• A required clip start position. Enter it as seconds (example: 12.5) or as a timecode (example: 00:01:02). The start must fall inside the audio.
• An optional clip end position. Enter it as seconds or timecode. The end must be later than the start.
• An optional clip length (duration). Enter it as seconds or timecode. It is measured from the start. If you provide both an end time and a length, the length is used.
• An optional export format for the trimmed file: MP3, WAV, M4A, AAC, FLAC, OGG, or Opus. If you don’t choose one, the output keeps the input file’s format.
• An optional bitrate for lossy exports, in kbps. The valid range is 32 to 320 kbps. This setting is ignored for lossless exports like WAV and FLAC.

Outputs

• A single trimmed audio file in the chosen format.
• The result is returned as a downloadable file URL hosted on Wiro’s CDN.
• The URL is publicly accessible, so treat it as a public link.

Limitations

• The start time must be inside the source audio.
• The end time must be later than the start time.
• If you set a clip length that runs past the end of the source audio, the clip is shortened automatically.
• Bitrate controls only apply to lossy formats. WAV and FLAC ignore bitrate settings.
• Corrupt files, broken URLs, or uncommon audio encodings can cause failures or unexpected cuts.
• Output files are stored on Wiro’s CDN for a limited time, so download anything you need to keep.

Safety & compliance

• Only upload audio you have rights to process and share.
• Don’t use sensitive audio if a public URL is not acceptable for your workflow.
• Download outputs you want to keep, then store them in your own private storage.