Microphone

Microphone input tests and live level monitoring.

Microphone tool with controls and live level monitoring

Volume analysis graph and technical details (sample rate, buffer size, latency)

Overview

The Microphone tool helps you verify that audio input works and that the input level responds to voice and ambient sound.

Table of Contents

• Overview
• What You Can Do
• Main Sections
• Permissions
• Notes And Limitations

What You Can Do

• Start and stop live microphone monitoring.
• Switch between available input devices.
• Inspect live amplitude and waveform visualizations.
• Review technical details from the audio engine.

Main Sections

The Microphone tool is a single scrolling screen with:

• Controls: Start/Stop monitoring.
• Input device selector: choose between built-in and external inputs (when available).
• Volume gauge: current amplitude plus a compact waveform.
• Raw waveform: a raw waveform panel.
• Volume graph: history over time.
• Technical details: audio engine/session configuration details.

Permissions

Microphone access requires iOS permission.

• If permission is not granted, Lirum shows a permissions prompt where you can request access or open iOS Settings.

Notes And Limitations

• When switching input devices, Lirum may briefly show a loading indicator while reconfiguring the audio engine.
• Bluetooth headsets and USB mics can have different gain behavior than the built-in microphone.