Audio Stem Storage Calculator
Size a full set of broadcast audio stems (dialogue, music, effects, multitrack) at 48 kHz/24-bit for delivery and archive.
A 5.1 D-M-E stem set (18 mono channels) plus a stereo mix at 48 kHz/24-bit is ~20 tracks; an hour runs ~12 GB. Stems must be archived alongside the mix for future re-versioning and localization, so this is the real audio footprint of a deliverable, not just the final stereo file.
Rule / Formula
Size a full set of broadcast audio stems (dialogue, music, effects, multitrack) at 48 kHz/24-bit for delivery and archive.
About Audio Stem Storage Calculator
Size a full set of broadcast audio stems (dialogue, music, effects, multitrack) at 48 kHz/24-bit for delivery and archive. A 5.1 D-M-E stem set (18 mono channels) plus a stereo mix at 48 kHz/24-bit is ~20 tracks; an hour runs ~12 GB. Stems must be archived alongside the mix for future re-versioning and localization, so this is the real audio footprint of a deliverable, not just the final stereo file.
How to use Audio Stem Storage Calculator
- 1Enter your values into the fields in Audio Stem Storage Calculator.
- 2The result and any pass/fail verdict update instantly as you type — no button to press.
- 3Check the substituted formula and worked example to see exactly how the result was derived.
- 4Copy or note the result for your spec, delivery or planning.
Why use Audio Stem Storage Calculator?
- ✓Runs entirely in your browser with instant, private results — no data leaves your device.
- ✓Built on a published reference: EBU Tech 3285 (BWF); broadcast stem-delivery practice.
- ✓Shows the governing formula and a worked example, so you can trust and check every result.
- ✓100% free with no sign-up, no watermark and no usage limits.
- ✓Works on any device — desktop, tablet or phone — and keeps working offline once loaded.
Frequently asked questions
What does Audio Stem Storage Calculator do?+
Size a full set of broadcast audio stems (dialogue, music, effects, multitrack) at 48 kHz/24-bit for delivery and archive. A 5.1 D-M-E stem set (18 mono channels) plus a stereo mix at 48 kHz/24-bit is ~20 tracks; an hour runs ~12 GB.
Is my data private?+
Yes. Audio Stem Storage Calculator runs entirely in your browser — your inputs are never uploaded, stored or logged.
What standard or source is Audio Stem Storage Calculator based on?+
It follows EBU Tech 3285 (BWF); broadcast stem-delivery practice. Always confirm against the current official document, as specifications and rates can change.
What formula does it use?+
Audio Stem Storage Calculator uses: bytes = tracks × sampleRate × (bits/8) × seconds. The tool shows this formula with your own numbers substituted so you can verify the result.
Is Audio Stem Storage Calculator free to use?+
Yes — it is completely free with no account, no sign-up and no usage limits. There is no watermark and no paywall.
Embed Audio Stem Storage Calculator on your website
Want Audio Stem Storage Calculatoron your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.
<iframe src="https://tooljolt.com/tools/audio-stem-storage-calculator" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="Audio Stem Storage Calculator — ToolJolt" loading="lazy"></iframe>Related Broadcast tools
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