How Do I Improve Audio Quality when Using Network-Based Recording (NBR)?

How do I improve audio quality when using Network-Based Recording (NBR)?

How can I record cleaner audio using the Network-Based Recording option?

How can I get better sound quality in my recordings?

What are the best practices for Network-Based Recording?

MP4 Recordings Default in Webex Meetings 40.10

In the upcoming October (40.10) update, all-new recordings in Webex Meetings will be stored in MP4 format, either in the cloud or locally as selected at the site or host level, with a video-centric experience. By standardizing the recording format, you'll have a wider choice of playback tools, better security, and a more effortless collaboration experience even after your meetings. Existing ARF and WRF recordings can still be downloaded or played at the Webex site. For more information regarding video-centric recording, go to Video-Centric Network-Based MP4 Recordings in Webex Meetings and Webex Events.

Important Note: The audio in .ARF files cannot be edited or post-processed, so it is important to improve the sound in your audio conference, and record quality audio during your meeting. Any noise that occurs in your audio conference will also be recorded.


Network-Based Recordings (NBR) will be saved as an .ARF file on your Webex site. See the recommendations below to improve the sound quality in your recordings.

Before you start the recording:

  • If possible, try to do a test recording using the computer and hardware you want to use in your actual meeting.
  • If the audio quality is poor, consider upgrading your computer sound card, microphone, or speakers. Also check that your audio drivers are up to date.
  • For best results, use Webex Audio when recording your meetings. When you are using Webex Audio, the host and other users can alternate between using the phone or the computer for the audio connection. Both are acceptable for recording meetings.
  • Use a landline phone with a high-quality phone headset.
  • Avoid using:
    • Internal microphones, such as those in laptops
    • Wireless microphones
    • Speakerphones
    • Mobile phones
  • Use the Speaker/Microphone Audio Test to adjust your microphone level before you record, For best results, only make minor adjustments during the recording. Set your microphone volume to the highest level possible that does not cause distortion.
  • To help reduce background noise, mute your attendees when you are presenting, and then unmute their lines when you want to allow them to ask questions. If just one attendee has noise on their unmuted line, it will be heard by all participants and picked up in your recording.

    To mute participants, click on the Participant menu, and select Mute All.

During your recording:

  • Speak about six inches away from your microphone.
  • To avoid unwanted background noise, record in a quiet location. Avoid moving objects that create noise, such as papers and books.
  • Speak clearly.

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