Informazioni sui file OGG

OGG (OGG Vorbis Audio · Formato audio)

Rilasciato 2002 Di Xiph.Org Foundation

OGG Vorbis Audio (.ogg) è un formato di file standard supportato da KaijuConverter per l’archiviazione, la condivisione e la conversione multipiattaforma.

Famiglia

Audio Files

Estensione

.ogg

Tipo MIME

audio/ogg

Utilizzabile come

Input Output

La storia

COME OGG
È NATO.

1993

2002

Ogg was never intended to be a format — it’s a container. The Xiph.Org Foundation started the Ogg project in 1993 as a patent-free alternative to the proprietary compression world, and the first public release came in 2002 with the Vorbis audio codec riding inside it. Because "Ogg Vorbis" sounded friendlier than "container with codec", the industry blurred the distinction — a file called .ogg almost always means "Vorbis audio inside the Ogg container", but technically .oga, .ogv, .ogx, and .opus all use the same container for different payloads.

Ogg found its home in the free-software world: Wikipedia’s audio files, Linux-native games, Mumble voice chat, and countless indie podcasts. It never dethroned MP3 on consumer hardware, but it gave the open-source ecosystem a credible, patent-free alternative that was good enough to matter.

CURIOSITÀ E
ANEDDOTI.

The Ogg container is named after the slang word "ogging" from the computer game Netrek — a 1990s multiplayer Star Trek space combat simulator.

A single Ogg file can carry multiple "logical streams" interleaved — video, audio, subtitles, and metadata all at once.

Wikipedia mandates Ogg Vorbis or Opus for audio files in articles, because both are royalty-free.

Ogg Vorbis was developed by Chris "Monty" Montgomery, who spent five years perfecting it as a passion project.

The "granule position" field inside an Ogg page is what makes seeking work — it maps byte offsets to timestamps.

PUNTI DI FORZA E
LIMITAZIONI.

Punti di forza

Completely royalty-free — no patent worries for encoders or decoders.
Container is streaming-friendly — useful for internet radio.
Native support in HTML5 <audio>, every major Linux distro, and most audio tools.
Can multiplex any number of tracks (audio, video, text) in one file.
Mature tooling via libvorbis, libopus, and FFmpeg.

Limitazioni

Apple and Microsoft avoided Ogg historically — iOS and Safari only added Opus support recently.
Hardware decoder support is rare — encoding for battery-constrained devices (phones) still favors AAC.
Confusing naming: ".ogg" could be Vorbis, Opus, Speex, or FLAC.
Metadata conventions (Vorbis comments) are simpler than MP4's tagging.

Dimensioni e pesi tipici

3-min music (Vorbis q5 / ~160 kbps)

3.5 MB

1-hour podcast (Vorbis q3)

45 MB

Game sound effects (Vorbis q2)

5-30 KB each

Specifiche tecniche

MIME types: audio/ogg, application/ogg
Extensions: .ogg (audio), .oga, .ogv (video), .ogx (app), .opus
Standard: RFC 3533 (container), RFC 5334 (MIME)
Codecs: Vorbis, Opus, Speex, FLAC, Theora (video), Dirac
Streaming: Native (page-based structure)

CONVERTI DA
OGG

ogg mp3 ogg wav ogg flac ogg aac ogg m4a ogg opus ogg wma ogg aiff ogg ac3 ogg au ogg amr ogg aif ogg gsm ogg voc ogg w64 ogg sox ogg snd ogg wv ogg spx ogg mp2

CONVERTI IN
OGG

mp3 ogg flac ogg wav ogg aac ogg m4a ogg opus ogg wma ogg aiff ogg ac3 ogg au ogg caf ogg amr ogg mka ogg ape ogg alac ogg mp4 ogg mov ogg mkv ogg avi ogg webm ogg flv ogg wmv ogg mpeg ogg 3gp ogg ogv ogg vob ogg m4v ogg ts ogg m2ts ogg mts ogg mpg ogg aif ogg gsm ogg voc ogg w64 ogg shn ogg sox ogg snd ogg 8svx ogg tta ogg wv ogg spx ogg mp2 ogg dsf ogg dff ogg swf ogg asf ogg dv ogg f4v ogg h264 ogg h265 ogg m2v ogg mjpeg ogg mxf ogg rm ogg rmvb ogg divx ogg nut ogg y4m ogg dts ogg mid ogg ra ogg tak ogg

Casi d'uso comuni

Game audio, open-source projects, web audio, Spotify streaming.