Voiceover / IVR Loudness Checker
Check phone-system and IVR voice prompts against the telephony-friendly −20 to −16 LUFS range with controlled peaks.
IVR and on-hold prompts pass through aggressive telephony codecs and AGC. A −18 LUFS target with conservative −3 dBTP peaks keeps prompts intelligible and consistent with the music-on-hold bed, avoiding the harsh clipping narrowband codecs add to hot speech.
🔒 Everything runs in your browser via the Web Audio API — your audio is never uploaded.
Check phone-system and IVR voice prompts against the telephony-friendly −20 to −16 LUFS range with controlled peaks.
About Voiceover / IVR Loudness Checker
Check phone-system and IVR voice prompts against the telephony-friendly −20 to −16 LUFS range with controlled peaks. IVR and on-hold prompts pass through aggressive telephony codecs and AGC. A −18 LUFS target with conservative −3 dBTP peaks keeps prompts intelligible and consistent with the music-on-hold bed, avoiding the harsh clipping narrowband codecs add to hot speech.
How to use Voiceover / IVR Loudness Checker
- 1Drag a file onto Voiceover / IVR Loudness Checker, or click to choose one — it is analysed locally and never uploaded.
- 2Wait a moment while the tool processes the file entirely in your browser.
- 3Read the result, metrics and pass/fail verdict.
- 4Copy or export the report for your delivery, QC log or records.
Why use Voiceover / IVR Loudness Checker?
- ✓Analyses your file entirely in your browser — it is never uploaded, so even confidential masters stay private.
- ✓Built on a published reference: ITU-T G.711 / G.722 (telephony codecs).
- ✓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 Voiceover / IVR Loudness Checker do?+
Check phone-system and IVR voice prompts against the telephony-friendly −20 to −16 LUFS range with controlled peaks. IVR and on-hold prompts pass through aggressive telephony codecs and AGC.
Is my file uploaded to a server?+
No. Voiceover / IVR Loudness Checker processes your file entirely in your browser using local JavaScript and the Web platform — your media never leaves your device, so it is safe for unreleased or confidential content.
What standard or source is Voiceover / IVR Loudness Checker based on?+
It follows ITU-T G.711 / G.722 (telephony codecs); AES TD1004 (spoken-word streaming). Always confirm against the current official document, as specifications and rates can change.
Is Voiceover / IVR Loudness Checker 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.
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