Local privacy
Files are decoded in memory and never sent to Tervix.
Audio File Size Calculator
Estimate compressed or PCM audio size with transparent formulas.
Your files are processed locally and are never sent to our servers.
Estimated size
54.9 MB
duration × bitrate ÷ 8. The container and metadata add a small overhead.
How to use this tool
- 1
Enter duration and encoding parameters to estimate size.
- 2
Review the waveform, parameters and browser limitations.
- 3
Preview and download the result without leaving the browser.
Transparent local audio
Real compatibility
Codecs the browser cannot process are never promised.
Verifiable export
Edits export as PCM WAV and batches as ZIP.
Frequently asked questions
Is the result exact?
No. Containers and metadata add overhead.
Is my file uploaded?
No. Loading, processing and export happen on your device.
Why might a format fail?
Each browser exposes different codecs. Tervix reports the error and preserves the source.