---
title: "AudioPiper Docs — ModelPiper"
description: "Documentation for AudioPiper. Speech-to-text, text-to-speech, and audio processing pipelines running locally."
canonical: "https://modelpiper.com/docs/audiopiper/"
---

# AudioPiper Docs — ModelPiper

> Documentation for AudioPiper. Speech-to-text, text-to-speech, and audio processing pipelines running locally.

# AudioPiper

Offline

Multi-source audio mixer and recorder — mic, system audio, and per-app capture via Core Audio Taps.

## Capabilities

### Multi-Source Mixing

Capture from microphone, system-wide audio, or individual application audio simultaneously.

### Recording

Actor-based streaming WAV writer with constant memory usage. Waveform visualization with 8x gain.

### Per-App Audio

Core Audio Taps for capturing audio from specific applications — isolate any app's output.

## Build & Run

`./build.sh --audiopiper` — incremental build. Add `--clean` to reset DerivedData, `--reset-tcc` to re-grant microphone access.