Remio carries audio on the same end-to-end encrypted channel as video. Turn it on in the host's settings, and your computer's system audio — whatever would normally come out of its speakers — plays right on your device, in sync with the screen. This guide covers what audio streaming actually does today, how to turn it on, and basic troubleshooting.
Overview
Remio streams your computer's full system-audio mix — not a per-app selection, and not your client's microphone. On macOS, the host taps the system mix through a small virtual aggregate device; on Windows, capture goes through WASAPI loopback. Either way, the captured stream is encoded with Opus at 48 kHz and rides the same encrypted channel as your screen, so it stays in sync automatically.
There's nothing to configure on the client. Audio plays through whatever output device the client is already using — its built-in speaker, connected headphones, or paired Bluetooth audio.
Prerequisites
- Host running macOS 15 Sequoia or later, or Windows 10/11.
- Client running a current version of Remio on iOS, iPadOS, macOS, Android, or Windows.
- Screen Recording permission granted to Remio Host on macOS — system-audio capture piggybacks on this same permission.
- Active streaming session — audio only flows while a session is live.
01 · Turn on audio in the host's settings
Audio is off by default — Remio asks before tapping anything that could carry private content. Turn it on once and the host remembers for future sessions.
macOS
Click the Remio icon in the menu bar, choose Preferences → Audio, and toggle audio on. Remio taps your Mac's system mix through a small virtual aggregate device — it doesn't change your default output, and it never becomes the default unless you pick it manually in Sound settings. System-audio capture uses the same Screen Recording permission Remio already needs for video.
Windows
Right-click the Remio tray icon, pick Settings → Audio, and toggle audio on. Windows handles capture through WASAPI loopback — no driver install, no admin prompt.
This turns on your computer's full system-audio mix — everything that would normally come out of the speakers. There's no per-app selector, and the client's microphone is never sent to the host. Audio flows one way: host to client.
02 · Connect and listen
Once the host has audio turned on, every client that connects hears it automatically — no separate toggle or setup on the client side. It plays through whatever output device the client is already using: the phone's speaker, connected headphones, or paired Bluetooth audio. Because audio rides the same encrypted channel as video, it stays in sync with the screen without any extra configuration.
Troubleshooting
- No audio on the client — verify audio is toggled on in the host's settings. On macOS, also confirm Remio Host has Screen Recording permission (System Settings → Privacy & Security → Screen & System Audio Recording).
- Audio cuts out or stutters — usually a sign the network is struggling. Check your connection, or move closer to the Wi-Fi access point; audio shares the same data path as video.
- Echo or feedback — happens when both ends play through speakers without a headset. Wear headphones on one side, or mute the host's speakers and rely on the client for playback.
- Audio and video feel out of sync — restart the session. Audio and video ride the same channel, so this is rare, but a fresh connection resets both.
If none of these resolve it, the broader audio troubleshooting guide walks through more causes in depth.
Common audio questions
Does Remio stream audio along with video?
Yes. Remio captures your computer's system audio and streams it right on your device, in sync with the screen, over the same encrypted channel as video.
Can I route only one app's audio over Remio?
No. Remio streams your computer's full system-audio mix — everything that would normally come out of the speakers. There's no per-app selector today; if you don't want a particular app's sound included, mute it on the host itself.
Does the client's microphone work on the host?
No. Audio only flows one way — from the host to the client. The client device's microphone is not sent to the host.
What format does Remio use for audio?
System audio is encoded with Opus at 48 kHz, the same rate used across most modern video and audio pipelines.
Why don't I hear any audio?
Confirm audio capture is turned on in the host's settings, and that the client's own volume is turned up. On macOS, system-audio capture also needs Screen Recording permission granted to Remio Host.
