1GB audio recording = How many minutes

Is there any guidelines for how much storage is required for an audio only call?
1GB = 30 minutes? 60 minutes? I’m trying to gauge how much storage to buy for a audio call of less than 120 minutes.

Thank you.

one second of audio is about 64Kbit/s so 1GB of storage is good for about 30 hours of recording.
screensharing and video will take substantially more and it is difficult to predict as they are variable bitrate.
If you upload files to meeting resources or broadcaster they are counted towards to your quota.

Thank you,
Eugene

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