Two-Way Audio Not Working? Work Through It in This Order
When the talk button does nothing, four checks find the fault almost every time: the app was never granted microphone permission on your phone, the speaker icon on the live view is muted, your phone's own volume is down or routed somewhere else, or the camera in front of you simply does not have a speaker built in. That last one is worth settling first, because no amount of troubleshooting will add hardware that is not there.
This guide deals only with sound. If the picture is also frozen, black or stuttering, that is a connection problem and audio is just the first casualty — there is a section on telling the two apart near the end.
First, work out which half is broken
"Two-way audio isn't working" describes three different faults, and they have almost nothing in common. Open a live view and be precise about what you get.
You can hear them, they cannot hear you. The camera's microphone works and your phone is playing it. What is failing is the outbound direction: the app's microphone permission, or the camera's speaker. This is the classic "one-way audio only" complaint.
They can hear you, you cannot hear them. Outbound is fine. Something is muting the incoming stream — the speaker icon in the app, your phone's volume, silent mode, or a Bluetooth device quietly taking the output.
Neither direction works, and the video is fine. Look at permissions first, then at whether audio has been disabled for that camera in settings.
Neither direction works, and the video is also poor. Not an audio fault. Skip to the connection section.
Does your camera actually have a speaker?
A microphone and a speaker are separate components, and plenty of cameras ship with only the first. A camera with a microphone alone can record and stream sound to you, but there is no way for your voice to come out at the other end. The talk button may still appear in the app, because the app is written for a whole product range rather than for your specific unit — pressing a button that leads nowhere is a very common source of "it's broken".
There is no way to settle this by guessing. Model capabilities differ, so confirm yours from the manual that came in the box, the specification on the packaging, or whoever sold you the camera. Two practical tells while you wait for an answer: look for a small grille or slotted opening on the housing that is separate from the pinhole microphone, and listen at first power-up — a camera that speaks a setup prompt aloud clearly has a speaker.
If it turns out yours has no speaker, the fix is a different model, not a setting.
Check the app's microphone permission
This is the most common cause of a talk button that does nothing at all, and it is easy to create by accident: the permission dialogue appears once during setup, you are concentrating on getting the camera paired, you tap the wrong option, and the system never asks again.
Go into your phone's settings, find the app in the application list, open its permissions, and make sure the microphone is allowed. On phones that offer "allow only while using the app", that is the right choice — the app only needs the microphone while you have the live view open.
A few related traps:
- Another app is holding the microphone. An active phone call, a voice message being recorded, or a video call in the background can block it. End the other app and reopen the live view.
- A privacy switch is on. Some phones have a system-wide microphone kill switch in the quick-settings panel, and some laptops have a physical one.
- The app was updated or reinstalled. Permissions can reset. If two-way audio stopped working the same week the app updated, check permissions before anything else.
- A work profile or device-management policy on a company phone may block microphone access entirely. Test on a personal phone to confirm.
If notifications are also silent on the same phone, you are probably looking at a broader permissions problem rather than an audio one — the same settings screen governs alerts that never arrive.
Check the mute icon and where your phone is sending sound
On the live view there is normally a speaker or sound icon that toggles incoming audio. It is deliberately placed where a thumb rests, so it gets switched off by accident constantly. Look for a crossed-out speaker and tap it.
Then check the phone side, in this order:
- Silent mode. On many phones this silences media as well as ringtones.
- The volume buttons while the live view is open. Phones keep separate volume levels for ringtone, media and calls, and pressing the volume keys on the home screen may be adjusting a different one from the one the app uses. Adjust while the stream is playing.
- Bluetooth. A car kit, a smart speaker or a pair of earbuds left connected in another room will happily take the audio and play it there. Turn Bluetooth off and try again.
- A case or a blocked speaker grille on the phone itself. Obvious, and it does happen.
There may also be a per-camera audio setting in the app's device settings — a master switch for whether that camera records and streams sound at all. If sound stopped for one camera but works on another in the same app, that is where to look.
How the talk button is meant to be used
Most camera apps use push-to-talk: you hold the button down while you speak and release it to listen. Tapping it once and then talking produces silence at the other end, which reads exactly like a fault.
Two more things about how the link behaves:
- It usually works in one direction at a time. While you hold the button, incoming sound is suppressed. That is normal, not a defect; it is what stops the camera's microphone from picking up its own speaker.
- There is a delay. Your voice is compressed, sent over the internet and played out the other end, and the answer comes back the same way. Speak a short sentence, release, and wait. Talking over the gap is the main reason two-way conversations through a camera collapse.
Speak clearly and reasonably close to the phone. A camera speaker is small, and a mumbled sentence at arm's length is not going to survive the trip.
Echo, howling and sound that is too quiet
Howling or a rising screech means a feedback loop: the camera's speaker is being picked up by the camera's own microphone, or by your phone's microphone if you are standing near the camera. Move away from the camera, or lower the volume. Testing two-way audio while standing in front of the camera almost guarantees this.
Echo of your own voice is the same loop, just weaker. Same fixes.
Too quiet at the camera end is usually a hardware limit rather than a setting. These speakers are built to carry a short warning across a doorway or a shop counter, not to fill a yard. Check whether the app offers a speaker volume control for that camera, and if it does not, treat the current level as the level.
Crackling or robotic voice is nearly always the network rather than the audio, which brings us to the last section.
When it is the connection, not the audio
Audio is the first thing to break when bandwidth runs short, because the app protects the video stream. So intermittent sound with a fine picture, or sound that works indoors next to the router and fails from outside the house, is a network symptom.
Check in this order:
- Is the camera stable? Frequent dropouts, a spinning connect icon or a device that vanishes from the list points at the link, not the microphone. Work through why the camera keeps going offline first.
- Test on a different connection. Try your phone on mobile data instead of WiFi, and from a different location. If two-way audio works from one network and not another, a restrictive network is blocking it — office and public WiFi commonly do.
- Watch on a computer instead. Desktop and browser versions of camera software often support fewer features than the phone app, and two-way audio is a frequent omission. If it works on the phone but not on a laptop, that is expected rather than broken — the desktop viewing options are a separate piece of software with their own limits.
If everything above checks out and the talk button still does nothing on a model you have confirmed has a speaker, the last two steps are the blunt ones: remove the camera from the app and add it again, and if that fails, reset it to factory settings and pair from scratch. Do those in that order — re-adding costs you a minute, a reset costs you the WiFi profile and every setting on the camera.
Frequently asked questions
Why can I hear the camera but it cannot hear me?
Outbound audio is failing. Either the app has not been granted microphone permission on your phone, another app is holding the microphone, or the camera has no built-in speaker. Check the permission first because it takes seconds, then confirm from the manual or the seller whether your model has a speaker at all.
Why is there no sound from my camera even though the video works?
Look for the crossed-out speaker icon on the live view, then check your phone is not in silent mode and that the volume is up while the stream is playing. Bluetooth is the sneaky one — earbuds or a car kit still connected will take the sound and play it somewhere you cannot hear.
Do all cameras have two-way audio?
No. A microphone and a speaker are separate parts, and many cameras include only the microphone, which means you can hear but not be heard. The talk button can still appear in the app because the app serves a whole range of models, so confirm what your unit has from its manual or from wherever you bought it.
Why is there a delay when I talk through the camera?
Your voice is compressed, sent over the internet, and played back at the other end, and that round trip takes a moment. It is normal. Say one short sentence, release the talk button, and wait for the reply instead of talking over the gap.
Why does the camera screech when I use two-way audio?
That is feedback — the camera's speaker being picked straight back up by a nearby microphone. It happens most when you test the feature while standing in front of the camera. Move into another room, or turn the volume down, and it stops.
Two-way audio works on my phone but not on my computer. Is something broken?
Almost certainly not. Desktop and browser software for cameras typically supports a narrower feature set than the mobile app, and two-way audio is one of the features most often left out. It also depends on the computer's own microphone and its permissions.
Fitting cameras for other people?
If you install or sell cameras rather than just use them, knowing which models in a range carry a speaker saves a lot of support calls. Partner and distribution details for the Yoosee range are at business.yoosee.com.