How to convert AAC to Ogg Vorbis
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Upload your file
Drag and drop a file or click to select one. Keep this page open while the file uploads and converts.
- 2
Convert AAC to Ogg Vorbis
NexMedia converts AAC to Ogg Vorbis on its own servers. Processing time depends on the file size and how busy the queue is.
- 3
Download the converted file
When the conversion finishes, the download appears on this page. Your converted file is kept for 2 hours, then deleted.
About AAC
AAC (Advanced Audio Coding) is the lossy audio codec standardised in MPEG-2 and MPEG-4 as the successor to MP3; at the same bitrate it generally sounds better than MP3.
It is the audio in most MP4 videos, in Apple Music and on YouTube; a .aac file is a bare AAC stream without a container.
A bare .aac stream has only limited room for tags and cover art, so music players usually expect AAC inside an M4A file.
Convert AAC to Ogg Vorbis online free, no account required — Ogg Vorbis is an open, royalty-free lossy audio format.
Change AAC to Ogg Vorbis without losing quality — convert AAC to Ogg Vorbis free in your browser.
Why won't my old MP3 player or car stereo play AAC files? Older hardware was built before AAC became common and often only decodes MP3, so a conversion keeps the music playable anywhere.
About Ogg Vorbis
Ogg Vorbis is the open, royalty-free Vorbis audio codec in the Ogg container, developed by the Xiph.Org Foundation.
Games, open-source software and music streaming; Spotify has streamed its music in Ogg Vorbis.
Apple devices have limited support for Ogg Vorbis, and many car stereos do not play it.
Why convert audio to OGG? For open-source projects and game engines: the format is patent-free and browsers and engines play it natively.
What changes when you convert AAC to Ogg Vorbis
- The audio is decoded and re-encoded as Ogg Vorbis at the default settings, so the result is close to the AAC but not bit-identical.
- AAC and Ogg Vorbis are both lossy formats, so this conversion adds a second round of lossy compression; keep the original AAC if you may need the best quality later.
Settings you can change
Before you convert AAC to Ogg Vorbis, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Limits
Each plan sets a maximum file size and a number of conversions per day, and video and audio files also have a maximum length. Guests can convert files up to 100 megabytes and 5 per day; a free account raises this to 500 megabytes and 25 per day; paid plans go up to 100 gigabytes.
Your converted Ogg Vorbis file is kept for 2 hours, then deleted.
AAC to Ogg Vorbis: questions and answers
Does converting AAC to Ogg Vorbis reduce quality?
The audio is decoded and re-encoded as Ogg Vorbis at the default settings, so the result is close to the AAC but not bit-identical. AAC and Ogg Vorbis are both lossy formats, so this conversion adds a second round of lossy compression; keep the original AAC if you may need the best quality later.
What is the difference between AAC and Ogg Vorbis?
AAC is the lossy audio codec that succeeded MP3. Ogg Vorbis is an open, royalty-free lossy audio format.
Can I change the settings when converting AAC to Ogg Vorbis?
Before you convert AAC to Ogg Vorbis, you can adjust: Audio codec, Rate control, Audio bitrate, Quality (VBR), Sample rate, Channels, Normalize loudness, Trim start, Trim duration, and Keep tags.
Do I need an account to convert AAC to Ogg Vorbis?
No. You can convert AAC to Ogg Vorbis without an account; signing in raises the file-size and daily limits.
How long is my converted Ogg Vorbis file kept?
The Ogg Vorbis file you convert from AAC is kept for 2 hours, then deleted automatically.
My AAC is already lossy — does the Ogg Vorbis lose even more?
AAC and Ogg Vorbis are both lossy formats, so this conversion adds a second round of lossy compression; keep the original AAC if you may need the best quality later.
When I convert AAC to Ogg Vorbis, is the audio re-encoded?
The audio is decoded and re-encoded as Ogg Vorbis at the default settings, so the result is close to the AAC but not bit-identical.