OGG to AIFF Converter

OGG to AIFF Converter

.ogg is Xiph.Org's open container, and the audio inside it is almost always Vorbis — a lossy codec that PC games, Linux desktops and Wikimedia use heavily but that Logic Pro, Pro Tools and most hardware samplers never learned to import. AIFF is the opposite kind of format: Apple's 1988 uncompressed PCM container, the file every Mac audio tool has opened for nearly forty years.

Converting between them is a decode, not an upgrade. Vorbis threw data away when the .ogg was first encoded, and AIFF stores the decoded result sample-for-sample without adding anything back. What you gain is a file your editor accepts and can save repeatedly without a second generation of lossy loss. What you pay is size — roughly ten megabytes per stereo minute at CD resolution.

OGG (Vorbis) Format at a Glance

AIFF Format at a Glance

How to Convert OGG to AIFF

1. Upload Your OGG File: Drag the .ogg onto the page or click "Add Files" to browse. Several files can be queued and converted with the same settings in one batch.
2. Pick the Audio Codec: PCM 16-bit Big Endian is the selected codec and the one to keep — it is classic uncompressed AIFF, which every editor reads. PCM 16-bit Little Endian, PCM A-law and PCM mu-law are also offered; all three are AIFF-C codings rather than plain AIFF, so use them only when something specifically asks for one.
3. Set Sample Rate, Channels or Trim (Optional): Audio Sample Rate offers Original plus 8000, 12000, 16000, 24000, 44100 and 48000 Hz; Audio Channel offers Original, Mono and Stereo. Leaving both on Original copies the source untouched. Trim exports a start time and a duration instead of the whole track.
4. Convert and Download: Click Convert and save the .aiff. Files are uploaded over an encrypted connection, converted on our servers and deleted automatically after a few hours — no sign-up, no watermark.

There is no bitrate, quality-preset or file-size control on this page, and that is correct rather than missing: AIFF stores raw samples, so its size is fixed by duration, sample rate, bit depth and channel count. The only levers you have are the three in step 3.

Frequently Asked Questions

Does converting OGG to AIFF restore any of the quality Vorbis removed?

No. Vorbis is a lossy transform codec: at encode time it discarded detail it judged inaudible, and that decision is permanent. AIFF stores whatever it is handed with no further loss, so the AIFF is a faithful record of the current state of the audio — not a recovered version of the original recording. Convert for compatibility and for a stable editing master, never for fidelity. If you still have the pre-Vorbis source, encode that to AIFF instead.

Which Audio Codec option gives me a normal AIFF file?

PCM 16-bit Big Endian, which is the option already selected. Big-endian linear PCM is what the 1988 AIFF specification defines, and it is stored with the NONE compression type — meaning uncompressed. The other three entries produce AIFF-C files: PCM 16-bit Little Endian is the sowt variant (byte-swapped PCM, widely readable on macOS), and A-law and mu-law are the two G.711 telephony codings, which halve the data by storing one logarithmic byte per sample instead of two linear ones. Only pick those if a specific tool or telephony system asked for them.

Why is my AIFF roughly ten times the size of the OGG?

Because AIFF does not compress. At 44.1 kHz, 16-bit, stereo, every second of audio is 44,100 samples × 2 bytes × 2 channels = 176,400 bytes, so a minute is about 10.6 MB regardless of what the music sounds like. A Vorbis .ogg at a typical quality setting spends a small fraction of that. The multiple you see depends entirely on the bitrate the OGG was encoded at — a 128 kbit/s source expands about eleven-fold, a 320 kbit/s source about four-fold.

Should I convert to AIFF or to WAV?

They carry identical audio; the difference is byte order and ecosystem. AIFF is big-endian and the traditional Apple format — Logic Pro's own default export. WAV is little-endian and the safer choice for anything crossing to Windows, for broadcast delivery, or for a collaborator whose toolchain you do not control. If you are staying inside macOS audio apps, AIFF is fine; otherwise OGG to WAV is the more portable target. Neither is "better sounding".

Do my Vorbis comment tags survive the conversion?

Do not count on them. Vorbis comments are a free-form key/value system with no fixed vocabulary, while the 1988 AIFF specification defines only a handful of text chunks — NAME, AUTH, ANNO and copyright. There is no standard slot for album, track number or embedded artwork, and applications that do write those into AIFF are using later, inconsistent conventions. If tag fidelity matters more than an uncompressed container, OGG to M4A or OGG to FLAC keeps metadata far more reliably.

What sample rate should I choose for a DAW session?

Whatever the session already runs at, so your editor does not have to resample on import. Leaving Audio Sample Rate on Original is the right answer when you do not know — it preserves the source exactly, and Vorbis files are commonly 44,100 or 48,000 Hz already. Set it explicitly only to match a session (44100 Hz for music projects, 48000 Hz for video work). Raising the rate above the source adds bytes without adding information; there is nothing above the original sample rate to capture.

Is there a maximum length or file size for an AIFF?

AIFF inherits IFF's 32-bit chunk-size fields, so a single file has a hard ceiling in the low gigabytes — the same architectural limit WAV has, and one that only very long uncompressed recordings approach. Nothing on this page is likely to reach it; the more realistic constraint is upload and download time for a long source, since an uncompressed result has to come back down as well. If you only need a section, set a start time and a duration under Trim before converting.

How is my file handled while it is being converted?

It is uploaded over an encrypted connection, converted on our servers, and deleted automatically after a few hours. Files are never shared or made public, there is no sign-up and no watermark is added. Note that the Trim duration field starts at 10 seconds, so if you switch Trim on and leave the duration untouched you will get a ten-second AIFF — set it to the length you actually want, or leave Trim off to convert the whole track.