Method
bytes = seconds × sample rate × bit depth × channels / 8.
PCM audio size
Estimate uncompressed PCM audio size.
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Inputs
Change assumptions
How to use it
Use the result as a transparent planning estimate. Change one assumption at a time, compare scenarios and move to Toolkit when you need system-level simulation.
Limits
AAC/MP3/Opus use bitrate compression; PCM size will be larger.
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Local by design
Your inputs are processed in this browser. This utility does not need an account, database or AI API.