Who This Is For / When to Use
This article is for Kyrios users experiencing no audio, distorted audio, echo, dropped calls, or poor call quality during calls that use Kyrios’s built-in VoIP system.
How Audio Works in Kyrios
Kyrios uses Voice over Internet Protocol (VoIP) technology to transmit audio over the internet, which compresses audio to enable real-time communication.
Because VoIP compresses audio into packets, sound quality may differ from raw microphone output and is highly dependent on internet stability, hardware performance, and browser permissions.
Internet Connection Issues That Affect Audio
Audio issues often occur when the internet connection cannot reliably transmit VoIP packets.
VoIP audio quality may degrade if there is:
Low upload or download speed
High latency (ping)
High jitter
Packet loss
Recommended Connection Requirements
For stable Kyrios calls:
Minimum 50 Mbps download and upload
Jitter less than 10 ms
Ping under 40 ms
How to Test Your Connection
Run a speed and latency test at Cloudflare Speed Test.
Test VoIP compatibility at WebRTC Test.
If warnings appear in either test, upgrading your internet plan, router, or computer may be required.
Notes:
A wired Ethernet connection provides the most stability.
5 GHz WiFi with a compatible adapter is strongly recommended over 2.4 GHz.
Browser Compatibility and Limitations
Browser choice directly affects call stability and microphone access.
Recommended Browsers
Google Chrome
Mozilla Firefox
Mobile browsers are not recommended because they:
Cannot reliably maintain calls in the background
Do not handle GSM call interruptions well
How to Fix Microphone Issues in Google Chrome
Chrome microphone permissions must be correctly configured for Kyrios calls to work.
Check Site Permissions
Open Chrome.
Go to Settings > Privacy and Security > Site Settings > Microphone.
Select the correct microphone as the default device.
Review Allowed and Not allowed sites.
Remove blocked entries or change permissions to Allow.
macOS System Permissions (Required)
On macOS Mojave or later, Chrome must also be allowed at the system level.
Steps:
When prompted, click Open Preferences, or
Go to Apple Menu > System Settings > Privacy & Security > Microphone.
Enable the checkbox next to Google Chrome.
Restart Chrome if prompted.
How to Verify System Microphone Settings
Audio problems often occur when the wrong input device is selected at the operating system level.
Windows
Go to Start > Settings > System > Sound.
Under Input, select the correct microphone.
Speak and confirm the input level bar moves.
If no movement appears, run Troubleshoot.
macOS
Go to Apple Menu > System Settings > Sound > Input.
Select the correct microphone.
Adjust input volume as needed.
Enable ambient noise reduction if available.
Digital input devices must be adjusted at the source, not through system volume controls.
What to Check If Your Microphone Still Doesn’t Work
If audio issues persist after browser and system checks:
Confirm you are not muted on the headset or within the call.
Check for physical mute switches on cables or headsets.
Increase microphone input level (up to 100% if needed).
Try a different microphone.
Restart the call and your computer.
Testing in an Incognito window can help identify extension or cache-related issues.
Equipment That Provides the Best Call Quality
Hardware performance has a major impact on VoIP reliability.
Recommended:
Wired USB, AUX, or XLR microphones (via audio interface)
Wired headsets
Modern computers capable of real-time audio processing
Not recommended:
Bluetooth headsets (latency and instability)
Outdated computers
Ensure all headset or audio device software and firmware is up to date.
Default Microphone and Speaker Settings
Incorrect default devices are a frequent cause of audio issues.
Check Default Microphone (Windows)
Right-click the speaker icon in the taskbar.
Open Sound settings > Sound control panel.
Select the Recording tab.
Set the correct microphone as the default device.
Check Speaker Output
Click the speaker icon on the taskbar.
Select the arrow to view available audio devices.
Choose the correct speakers or headphones.
Ensure Chrome is using the same output device selected at the system level.
Using Built-In Network and Audio Troubleshooters
Operating system troubleshooters can help identify deeper issues.
Steps:
Right-click the sound icon.
Go to Settings > System > Troubleshoot > Other troubleshooters.
Run tests for:
Internet connection
Audio playback
Audio recording
How to Fix Echo Issues
Echo is typically caused by an audio feedback loop.
Common causes include:
Both participants using speakers instead of headsets
Microphone picking up speaker output
Fixes:
Use headsets instead of speakers
Mute one participant temporarily
Reduce speaker volume
Firewalls and Network Restrictions
Firewalls or restrictive network policies can interfere with VoIP traffic.
If issues persist:
Test from a different network
Temporarily disable firewall rules (if permitted)
Contact your network administrator or ISP
Frequently Asked Questions
Why does my audio sound different during calls?
Kyrios uses VoIP compression, which can alter audio characteristics. Internet stability also affects sound quality.
How do I know if my internet is good enough for VoIP?
Use Cloudflare Speed Test and WebRTC Test. A minimum of 50 Mbps with low jitter and ping is recommended.
Why can’t Chrome detect my microphone on macOS?
macOS requires system-level permission. Enable Chrome under System Settings > Privacy & Security > Microphone and restart Chrome.
What equipment works best with Kyrios calls?
Wired microphones or headsets provide the best stability. Bluetooth devices are not recommended.
What should I do if none of these steps work?
If all troubleshooting steps fail, contact your hardware manufacturer or internet service provider to investigate deeper issues.