How to Normalize OGG Files in 3 Steps
- Upload the OGG file in the converter above.
- Choose a target: Podcast (−16 LUFS, preselected), Streaming (−14 LUFS) or Broadcast (−23 LUFS).
- Convert and download the normalized MP3 (LAME VBR, about 190 kbps). Use the same preset for every file in a set so they all match.
Why OGG Files Need Normalization
OGG Vorbis files come from many sources — game soundtracks, personal rips, voice recordings, and web audio. A game's background music might sit at -20 LUFS, while a pop track ripped at full volume could be -8 LUFS. That's a 12 dB gap — one sounds roughly 2.3 times as loud than the other.
When you convert these OGG files to MP3 for portable use, the volume differences carry over. Normalization fixes this by adjusting every file to the same perceived loudness before encoding.
No second lossy step: the level change happens before MP3 encoding, so the only lossy step is the OGG-to-MP3 conversion itself. On very dynamic tracks the filter also narrows the gap between quiet and loud parts a little (see below).
Which LUFS Target to Choose
Each platform has its own loudness standard. Here are the targets for the three presets available in the converter above:
| Preset | Target | True Peak | Best For |
|---|---|---|---|
| Podcast (-16 LUFS) | -16 LUFS | -1.5 dBTP | Apple Podcasts, spoken word, audiobooks |
| Streaming (-14 LUFS) | -14 LUFS | -1 dBTP | Spotify, YouTube, Tidal, Amazon Music |
| Broadcast (-23 LUFS) | -23 LUFS | -1 dBTP | EBU R128, European TV/radio |
Most common choice: If you're converting OGG files for personal listening or Spotify/YouTube upload, use Streaming (-14 LUFS). For podcast OGG recordings, use Podcast (-16 LUFS). Once the level is set, pick the best MP3 bitrate for podcasts to keep episode files small.
How Normalization Works During Conversion
When you upload an OGG file and select a normalization preset, CleverUtils performs two operations in a single pass:
- OGG → MP3 conversion: The Vorbis audio is decoded and re-encoded to MP3 using libmp3lame (VBR V2 by default)
- Loudness normalization: FFmpeg's
loudnormfilter measures the audio's integrated loudness (LUFS) and adjusts the gain to reach the target level
The filter runs in one pass. In that mode loudnorm changes gain gradually through the file to hold the target loudness and a loudness range of 11 LU (7 LU for Broadcast), so very dynamic tracks come out a little more even. Frequency response and stereo image are not changed. A true peak limit (−1.5 dBTP for Podcast, −1 dBTP for the others) prevents clipping.
Normalizing Game Audio and Soundtracks
Many video games store their audio as OGG Vorbis — it's open-source, royalty-free, and efficient. If you're extracting game soundtracks for personal listening, you'll notice they're often mastered at lower loudness levels than commercial music to leave headroom for dynamic moments in gameplay.
Normalizing game OGGs to -14 LUFS brings them in line with commercial music loudness, so they blend naturally into your music library without sounding quiet.
When Should You Normalize?
- Converting game soundtracks: Game audio is typically quieter than commercial music. Normalize to -14 LUFS for consistent library playback
- Mixed OGG collections: Files from different games, apps, and sources at different levels. Normalization evens them out
- Uploading to Spotify or YouTube: These platforms normalize incoming audio anyway — delivering at the target loudness avoids platform-side adjustment
- Creating playlists: OGG files mixed with music from other sources need consistent volume for a smooth listening experience
For a deep dive into LUFS measurement and platform-specific targets, see our complete LUFS guide. For choosing the right MP3 bitrate for your OGG files, see the bitrate guide.
How to Normalize OGG and Keep the OGG Format
The converter on this page always outputs MP3. If the files must stay OGG, use one of these routes:
ReplayGain tags (no re-encoding)
Tools such as vorbisgain and loudgain measure each file and write the gain into its tags. The audio is not touched, so there is no quality loss, but only players that read ReplayGain (foobar2000, VLC and many Linux players) apply it.
Re-encode with a new level
normalize-ogg from the normalize-audio package decodes, adjusts and re-encodes files. With FFmpeg: ffmpeg -i in.ogg -af loudnorm=I=-14:LRA=11:TP=-1 -ar 44100 -c:a libvorbis -q:a 6 out.ogg (the -ar matters, because loudnorm outputs 192 kHz by default). Both routes re-encode, so pick a quality at least as high as the source.
Audacity
Use Effect → Volume and Compression → Loudness Normalization, set the LUFS target, then export as Ogg Vorbis.