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Audio Concat

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Join 2 to 12 audio clips into one file, in order, with silence between them.

UtilityFrom 0 creditsWireflow

Input

12 fields

Result Idle

Your result will appear here.

Set your inputs, then open a workflow to create it.

Credit estimate uses the model defaults. Your workflow shows the final estimate for your inputs before you run.

Model guide

Build with Audio Concat.

Join 2 to 12 audio clips into one file, in order, with silence between them.

Read the Audio Concat docs

Best for

Join 2 to 12 audio clips into one file, in order, with silence between them. Use the playground to set up a single step, then open a workflow when you want to connect more tools.

Inputs explained

Clips (array) (optional)
Set the clips (array) used by this model. Type: array.
Audio 1 (optional)
Set the audio 1 used by this model. Type: audio.
Audio 2 (optional)
Set the audio 2 used by this model. Type: audio.
Audio 3 (optional)
Set the audio 3 used by this model. Type: audio.
Audio 4 (optional)
Set the audio 4 used by this model. Type: audio.
Audio 5 (optional)
Set the audio 5 used by this model. Type: audio.
Audio 6 (optional)
Set the audio 6 used by this model. Type: audio.
Gap between clips (s) (optional)
Set the gap between clips (s) used by this model. Type: number. Default: 0.
Per-join gaps (s, comma list; overrides gap) (optional)
Set the per-join gaps (s, comma list; overrides gap) used by this model. Type: text.
Sample rate (optional)
Set the sample rate used by this model. Type: text. Options: 48000, 44100, 24000. Default: "48000".
Channels (optional)
Set the channels used by this model. Type: text. Options: stereo, mono. Default: "stereo".
Format (optional)
Set the format used by this model. Type: text. Options: mp3, wav. Default: "mp3".

Tips before you run

Start with the default settings and change one input at a time. Keep the result you like on your board so the next step can use it.

If you add a reference file, use a link the workflow can read. Check the inputs and credit estimate on the board before starting a run.

Working with this model

What it is for

Join phrases into one track with controlled gaps, without a stack of trim nodes or a trip to an audio editor.

Wiring

Wire an array into clips (for example an iterator's collected TTS lines), or wire the discrete audio_1 to audio_6 ports. When clips is wired it wins outright and the discrete ports are ignored, never merged. 2 to 12 clips. A discrete port that receives more than one clip is refused rather than silently dropping the extras.

Settings

  • Gap (seconds, 0 to 10): silence between every pair of clips.
  • Per-join gaps: a comma list such as 0.3, 0.5, 0.2 that sets each join individually. It must name exactly one value per join (clips minus one) and overrides Gap.
  • Sample rate (48000 default, 44100, 24000) and Channels (stereo default, mono): every clip is converted to this one format before joining.
  • Format: mp3 (default) or wav.

Free, and why

Free set, no Run button, refreshes when anything downstream runs. The output is content-addressed by the clip urls, their order and the settings, so an unchanged re-run reuses the last file.

Common questions

How do I use Audio Concat on Wireflow?

Set the inputs above and choose Open in a workflow. Sign in to save your board, then check its credit estimate before you run.

Can I use Audio Concat through an API?

Yes. Save a workflow with this model, then call the Wireflow run API with its workflow ID. The API tab has examples you can copy.

What changes the credit price?

The price shown uses the model defaults. Your inputs and model settings can change the total. The workflow shows an estimate before you run.

Can I connect this to another model?

Yes. Open it in a workflow and connect its output to another node with a matching input type.