Loudness Analyzer & Normalizer
Tjek EBU R128 og andre standarder
Brug dette værktøj til at kontrollere, at dit lydmix lever op til en bestemt standard. Værktøjet genererer en loudness-rapport ud fra den uploadede fil. Det kan også normalisere en lydfil og få den til at overholde en standard efter eget valg.
Indlæser...
Standarder for lydstyrke
LUFS (Loudness Units relative to Full Scale) bruges til at måle lydstyrken af lydindhold. Der findes en lang række standarder og værdier for forskellige leveringsformater. Tabellen nedenfor giver et overblik.
| Platform | LUFS (Integrated Loudness) | True Peak (dBTP) | Loudness Range (LRA) |
|---|---|---|---|
| Streaming (e.g., Spotify) | -14 LUFS | -1 dBTP | 7-10 LU |
| YouTube & Vimeo | -14 LUFS | -1 dBTP | 6-8 LU |
| TV Broadcast (US, ATSC A/85) | -24 LUFS | -2 dBTP | 4-7 LU |
| TV Broadcast (EU, EBU R 128) | -23 LUFS | -1 dBTP | 5-10 LU |
| TV Advertising | -24 to -20 LUFS | -2 dBTP | 4-7 LU |
| Online Content (General) | -16 to -14 LUFS | -1 dBTP | 6-8 LU |
| Mobile | -16 LUFS | -1 dBTP | 6-8 LU |
| VOD (Video on Demand, e.g. Netflix) | -24 LUFS | -2 dBTP | 5-10 LU |
| Cinema | -27 to -24 LUFS | -3 to -6 dBTP | 15-20 LU |
| Podcasts | -16 LUFS | -1 dBTP | 6-8 LU |
| DVD/Blu-ray | -27 LUFS | -3 dBTP | 10-15 LU |
| Radio | -16 LUFS | -1 dBTP | 6-10 LU |
TV Broadcast
U.S. TV follows the ATSC A/85 standard and targets -24 LUFS, while Europe follows EBU R 128 and targets -23 LUFS, both with a true peak of -1 to -2 dBTP to prevent distortion and ensure broadcast quality.
Cinema
Cinema audio typically has a much wider dynamic range, allowing for very quiet moments and very loud moments. Still, true peak levels should not exceed -3 dBTP to -6 dBTP.
YouTube and other Video Platforms
Similar to streaming platforms, these platforms also aim for -14 LUFS for consistency and to avoid drastic changes in volume from one video to the next.
Streaming
To ensure consistency across content types, streaming platforms such as Spotify have standardized on -14 LUFS.
TV Commercials
TV commercials are typically louder than regular TV content to attract attention, often falling between -24 and -20 LUFS.
VOD
Video-on-demand services closely follow broadcast TV standards, typically around -24 LUFS with a similar true peak.
Podcasts
Podcasts are targeted at -16 LUFS for clear and consistent playback across devices. This is similar to mobile content.
DVD/Blu-ray
Physical media such as DVDs and Blu-rays target -27 LUFS to maintain high dynamic range and theater-like audio quality.
Radio
Radio broadcasts typically aim for -16 LUFS to ensure clear audio in various listening environments and signal strengths.
Toleranceniveauer
I Europa har EBU R128 en tilladt tolerance på ±1 LU, hvilket betyder, at en afvigelse på op til 1 LUFS over eller under målværdien er acceptabel. I USA er tolerancen i henhold til ATSC A/85 ±2 LUFS. For biografproduktioner er der ikke noget fast LUFS-mål, men en typisk loudness kan være mellem -27 og -24 LUFS. Spotify sigter mod en loudness på -14 LUFS uden nogen eksplicit tolerance, men indhold, der afviger betydeligt, justeres normalt automatisk. YouTube har også et mål på -14 LUFS, og indhold, der overskrider denne værdi, bliver automatisk justeret.
Den specifikke tolerance kan afhænge af tjenestens eller platformens politikker, men generelt bør målværdierne overholdes for at sikre den bedste lydkvalitet og konsistens.
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