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# helpdesk
s
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a
Audio loss is usually CPU related, and with 4 cores and 1080p that sounds likely. Right now you can't set default dimensions in the config, but you can use one of the 720p presets in your egress requests
f
Thanks, may i know where can we set egress preset ? Is it with RoomComoposite.start(). Any resource or documents link on preset setting is highly appreciated.
d
@faint-army-19363, take a look at the docs here: https://docs.livekit.io/server/egress/#startroomcompositeegress
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f
Thanks team
Hi Team, We have set EncodingOptionsPreset to H264_720P_30: 0, but we still observing cracked voice. This was seems to be caused by recent livekit-server latest version moving to v1.4.3 (https://github.com/livekit/livekit/releases/tag/v1.4.3) and livekit-egress v 1.6.0 (https://github.com/livekit/egress/releases/tag/v1.6.0). Any idea what would be the cause of this ?
d
Can you try the latest versions both livekit-server and egress? and what is your CPU utilization while this is observed?
f
Noted , will try latest version and confirm. Will share the metrics as well.