Oasis Aura - Fix No Sound – Avantree Support

No sound from Oasis Aura is usually caused by an incorrect audio input, missing audio signal, or a listening device that hasn't joined the Auracast broadcast.

Before you start: Turn on Oasis Aura and play audio from your TV, phone, or other audio source. If using FreeMic Duo, speak into the microphone.

Check the Audio Input

First, identify your audio source. Then short-press the Bluetooth / AUX / OPT button on Oasis Aura until the matching input is selected.

Which audio source are you using?

Audio Source	Select Input
TV — Optical Cable	OPT
TV — 3.5 mm Audio Cable	AUX
Phone / Tablet / Computer	Bluetooth
Mixer / Soundboard	AUX
FreeMic Duo Microphones	AUX

Check the Input Indicator

Optical (OPT) / AUX

Solid White: Audio signal detected. Continue to Step 3 if you still can't hear anything.

Flashing Red: No audio signal detected. Check the troubleshooting instructions for your audio source below.

Bluetooth (Phone Input)

Make sure the Phone indicator is lit. If there's no sound:

Press and hold the Phone / Pair button to enter Bluetooth pairing mode.
Open your phone, tablet, or computer's Bluetooth Settings and select Oasis Aura.
Play audio and increase the source volume.

If the Input Indicator Is Flashing Red

TV — Optical Cable

Open your TV's Sound Settings, select Optical Output, and set the digital audio format to PCM / Stereo.

How to Set Your TV to PCM

TV — AUX Cable

Set your TV's audio output to Headphone Output, increase the TV volume, and make sure the 3.5 mm cable is firmly connected to Oasis Aura's AUX IN.

Mixer / Soundboard

If Oasis Aura is connected to a church or venue mixing board:

Use a suitable line-level output on the mixer, such as Monitor Out, Stereo Out, Matrix Out, or Aux Out.
Connect the mixer to Oasis Aura's AUX IN using the correct audio cable. The cable must match the mixer's output connector (XLR, 6.35 mm, RCA, etc.).
Make sure AUX is selected on Oasis Aura.
Confirm the mixer output is active, correctly routed, and not muted. Play audio and adjust the output level.

Important: For permanent installations, use a dedicated line-level output rather than the mixer's PHONES jack. Some mixer outputs may require a suitable adapter or audio interface.

How to Connect to a Mixing Board

FreeMic Duo Microphones

If you're using FreeMic Duo as the audio source:

Attach the 3.5 mm adapter to the FreeMic receiver's audio output plug.
Connect a 3.5 mm audio cable from the receiver adapter to Oasis Aura's AUX IN.
Turn on the FreeMic microphones and receiver. Confirm they're connected (solid blue indicator).
Select AUX on Oasis Aura.
Make sure the microphones are not muted. Speak into a microphone to test the audio.

Note: The AUX indicator may flash red while the microphone is silent. Speak into the microphone to check whether Oasis Aura detects the audio.

If there's still no sound, check the FreeMic connection, microphone mute status, 3.5 mm adapter, and AUX cable.

How to Use FreeMic Duo as the Audio Source

Check Your Audio Connection

Reconnect the cable: If using Optical or AUX, unplug and firmly reconnect both ends.
Check the correct ports: Connect the cable from your audio source's Audio OUT port to the matching OPTICAL IN or AUX IN port on Oasis Aura.
Try another cable: If the input indicator still flashes red while audio is playing, test a different compatible audio cable.

Check Your Auracast Connection

If Oasis Aura is receiving audio but you still hear nothing, check your listening device.

Using an AuraClip Receiver

Solid Orange: Connected. Check that your earphones are plugged in and increase the receiver volume.

Flashing Orange: Searching for Auracast. Move AuraClip closer to Oasis Aura and reconnect.

Using Auracast Hearing Aids

Open your hearing aid app or Auracast Assistant.
Find and join the Oasis Aura Auracast broadcast.
Increase the hearing aid volume and test again.

How to Join an Auracast Broadcast

Still no sound? Restart Oasis Aura and your listening device. Then reconnect to the Auracast broadcast and test again.

Still Need Help?

Tell us which audio source you're using (TV, phone, mixer, or FreeMic Duo), which input is selected (OPT, AUX, or Bluetooth), what the input indicator shows, and which receiver or hearing aids you're using.

ASK A QUESTION