Audio issues on Remio cluster into four buckets: silent sessions (no audio at all), crackling and dropouts (the network struggling to keep up), drift (rare, usually clock skew), and echo or feedback (audio loop). Each has a well-defined cause and a fast fix. Work through this guide top-down — the most common symptom is at the top.
Overview
Remio's audio path runs from host capture (CoreAudio on Mac, WASAPI loopback on Windows, PulseAudio on Linux) through Opus encoding, the same end-to-end encrypted channel as video, to the client OS audio output. Every link in that chain has a known failure mode, and each maps to something you can check. Before you dive in, confirm the basics: audio is turned on in the host's settings, the host has macOS Screen Recording permission, and the client's own volume is up.
Prerequisites
- Audio streaming turned on — read the audio streaming guide first if you haven't enabled it yet.
- Active streaming session — audio only flows during a live session.
- Both ends updated — older client versions might lack more recent audio fixes.
01 · Silent session — no audio at all
If the stream is playing video but you hear nothing, walk through these in order.
- Audio toggle — open the host's settings and confirm audio is turned on. It defaults to off on every fresh install.
- macOS Screen Recording — Apple gates audio capture behind the same permission as screen capture. Open System Settings → Privacy & Security → Screen & System Audio Recording, toggle Remio Host on, then relaunch the host. Without this, you'll see video but get total silence.
- Client volume — raise the client's own system volume. On iPhone, also check the silent-mode switch on the side of the device — Remio respects ringer mute.
- Aggregate device installed (macOS) — open Audio MIDI Setup (in Applications/Utilities) and confirm Remio Audio appears in the device list. If it doesn't, the driver install was blocked — reinstall the host and approve any kernel-extension prompts.
02 · Crackling, popping, dropouts
These are almost always the network struggling to deliver frames on time — the client ran out of audio to play and either skipped silence or repeated the previous frame, both of which sound like a pop.
- Move closer to the access point — 5 GHz Wi-Fi falls off rapidly with distance. One room away is usually fine; three rooms away or behind walls will start to drop packets.
- Switch off Bluetooth output — Bluetooth audio has its own buffer, which can add to any network jitter. Try wired headphones or USB-C output if Bluetooth pops.
- Drop the video quality — audio shares the channel with video. If video is saturating the link, audio loses frames first. Lower video resolution to 1080p and audio cleans up.
- Check the network type — open the in-session stats overlay. If you're on a relay path with high round-trip time, that variance is naturally higher than a direct connection.
If crackling appears only during video-heavy moments (scrolling, animations), the link is capped. If it's constant, check Bluetooth output or switch to wired Ethernet on the host.
03 · Audio drifting out of sync with video
If audio starts in sync and slowly slides ahead or behind video over many minutes, this is rare — audio and video ride the same encrypted channel, so they're tied together by design.
- Reconnect the session — disconnect and reconnect. This is the cleanest fix and resolves nearly all drift.
- Long sessions on cellular — clock skew can build up over many hours on a cellular connection. Reconnecting resets the alignment.
- Still drifting after reconnecting? — treat it as a network issue: move closer to Wi-Fi, switch to wired Ethernet on the host, or lower video quality.
04 · Echo, feedback, or doubled audio
This happens when audio plays through speakers on both host and client at the same time — for example, streaming the host's Zoom meeting while sitting next to the host.
- Wear headphones on one side — the simplest fix. Headphones on the host or client end the loop immediately.
- Mute the host's speakers — open the host's volume control and mute. The session audio still flows to the client; only the local playback is silenced.
Audio troubleshooting FAQ
Why is my Remio session silent?
Three causes account for nearly every silent session: audio is turned off on the host, the macOS Screen Recording permission was never granted (Mac hosts cannot capture audio without it), or the client's own volume is muted. Walk through each in order.
How do I fix audio crackling on Remio?
Crackling is almost always the network struggling to keep up. Move the client closer to the Wi-Fi access point, switch to wired Ethernet on the host if possible, or lower the video quality — audio shares the same data path as video. On Bluetooth output, try a wired connection instead.
Audio is drifting out of sync with video — what causes that?
Since audio and video ride the same encrypted channel, drift is rare and usually clears up with a fresh connection. Disconnect and reconnect the session — on long sessions over cellular, clock skew can build up over hours, and reconnecting resets it.
Why does my Mac host show no audio capture device?
The Remio Audio aggregate device failed to install. Open Audio MIDI Setup, check the device list, and if Remio Audio is missing, reinstall the host. macOS sometimes blocks the installer on first run — approve in System Settings → Privacy & Security if you see a denial.
Can I use AirPods on the client without lag?
Yes, with caveats. Bluetooth audio in general adds noticeable latency on top of Remio's pipeline. For media playback this is fine. For games or live music, switch to a wired connection or USB-C headphones for a tighter round trip.
I hear an echo on voice calls — how do I fix it?
Echo happens when the same audio plays through speakers on both host and client. Wear headphones on at least one side, or mute the host speakers and let the client carry playback. Modern voice apps include echo cancellation but it cannot handle a full client-host loop reliably.
