Choppy Voice Calls on Skype

Filed under: Technology, Troubleshooting by: brennan

Skype is free software which allows you to make free long-distance computer-to-computer voice calls. You can also sign up for their premium service which allows you to make calls from your computer to land lines and cell phones. Subscription costs can be found by clicking here. Skype is a great alternative to paid long distance providers – when it works properly! I recently paid a visit to a client of mine who was experiencing problems communicating over Skype. Whoever she called said that her voice was so choppy that they couldn’t understand her.

To solve the problem, I used the steps below on her computer. I suggest you follow them if you are having a similar problem. (Step 5 solved this particular problem)

1. Run a continuous ping to Google

Open the command prompt by clicking Start, selecting Run, and typing “cmd” into the white box. A black box with a flashing white cursor will appear. In there type “ping google.com -t”. The -t option keeps the ping going indefinitely until you either close the window or press Ctrl + C.

Ping Google to check the connection quality

Ping Google to check the connection quality

If the ping times are steady (in this case, they are constant at around 100 milliseconds) and you aren’t dropping any packets, you can be fairly sure that the Internet connection is okay. However, if you are getting lines that say “request timed out” (dropped packets) or response times higher than 500ms, you could have a problem with your Internet connection or you may be running a program that’s hogging all your bandwidth.

2. Check the status of your network adapter to see if you are sending any packets to the Internet.

Open the Control Panel and go into Network Connections. Right-click on your active connection and select “status” from the menu. In the Status window, under “Activity” you will see the number of packets (Win XP) or bytes (Win Vista) that your computer has sent and received.

Interface Activity in Windows Vista

Interface Activity in Windows Vista

If the number under “Sent” climbs while you aren’t surfing the net or downloading email, it means some other program on your computer is sending data to the Internet. If it’s climbing rapidly at a fast pace you may have file sharing software (like Limewire or Bit Torrent) hogging your outbound Internet bandwidth or you may have a virus. Disable any file sharing software and scan your computer for viruses.

If you don’t see any packets leaving your computer and your still experiencing packet loss or high response times while pinging Google, you may want to call your Internet Service Provider and ask them to test the quality of your Internet connection.

3. Bypass (or disable) firewalls

If you have a hardware firewall like a D-Link or Linksys, try bypassing it and connecting the computer directly to the Internet modem. Make sure you enable the Windows firewall before doing this. You may also want to try disabling software firewalls like Norton and Mcafee to see if they are causing a problem.

4. Re-install Skype

According to Skype’s website, certain versions of their software do not work well together. You want to make sure that both computers participating in the VOIP call have the latest version of Skype. And even if you have the latest version, doing a re-install won’t hurt.

5. Try a different microphone

In this case, my client was using a USB Logitech webcam with a buit-in microphone. We connected a regular microphone directly to the sound card and then changed Skype to use that for input. After that, we noticed a significant improvement in audio quality (less chopping).

6. Re-install sound card drivers

If none of the other steps helped to solve the problem, you may want to consider re-installing the drivers that came with your sound card. I’ve seen microphones not work at all because of a driver problem, so it’s worth reinstalling them. You can find the manufacturer of the sound card by looking under sound devices in the device manager.

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Tags: audio, choppy, Skype

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