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Skype for Business (Lync) audio quality issues.

Skype for Business (Lync) audio quality issue.

When you try to connect to a Skype for Business (Lync) conference or make a peer to peer call, the audio or video quality may be choppy, tinny, or delayed. This causes the meeting or call to be unusable.
Audio call quality is depend on many things, like Client application, computer performance, audio device / drivers, network bandwidth/latency, server performance etc.
Resolution:
1.     Voice / Video quality indicator: In Skype for Business (Lync), you can see voice and video quality indicators to identify how well you're being heard or viewed.
2.     Check if computer is using a wired or wireless connection: A wired connection can provide more bandwidth and stability in most cases and should be the preferred method of connecting if that kind of connection is available. You may consider turning off any wireless antennas to avoid connecting through a wireless connection.
3.     Make sure that the audio/video device that is being used is approved and certified to work with Skype for Business (Lync) client. Approved device list.
4.     Select the correct device, and make sure that the recording volume is at the appropriate level. In the upper-right area of the window, click the gear icon, click Tools, click Options, and then click Audio Device. Verify that the appropriate device is selected.
5.     Adjust the Microphone slider to the volume level that you want. Speak at your usual voice level. The indicator should go no higher than the midway point.
6.     Check if user join call / meeting from computer which must not be under resource constraint like, CPU, Memory, and Hard Disk.
7.     Check and make sure you don’t have high network latency, high packet drop.
8.     Do not use VPN for Skype (Lync) call or meeting unless VPN split tunnel implemented so media send to internet instead of VPN tunnel.
9.     Most of the time audio / video driver causing issues. Update the Audio and Video drivers. Also check device configuration issues.
10.                     Use Pre-Call Diagnostic Tool (PCD) to see how the current state of the network might impact the media quality in an upcoming call. PCD shows a graphical view of your network metrics – Network MOS, Packet Loss and Interarrival Jitter which may degraded the audio quality.
11.                     Refer audio quality FAQ which has complete information on how to check / change client setting to get better voice quality.
12.                     If still issue persist then enable Skype for Business logging and reproduce the issue and send log to you Skype for Business Admin.
13.                      Admin can if their Skype for Business (Lync) Servers are not under resource constraint, may work with network to improve network performance if network quality bad.
Thank you.

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