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Supports: OGA
.oga files (Vorbis or Opus inside an Ogg container). Batch conversion is supported.ORIGINAL to mirror the source — usually 44.1 kHz or 48 kHz stereo. Force Mono to halve the file, or pick 48000 Hz when targeting video editors that prefer that rate.HH:MM:SS.sss, then click Convert. Files process per session — no sign-up, no watermark, no permanent storage..oga is the file extension recommended by the Xiph.Org Foundation (per RFC 5334, Sept 2008) for audio-only Ogg streams. In practice, OGA files almost always wrap a Vorbis or Opus bitstream — both lossy codecs. WAV, defined by IBM and Microsoft in 1991, stores raw PCM samples in a RIFF container that every DAW, OS, and embedded device can read without a decoder plug-in. Converting OGA to WAV decodes the lossy bitstream back to PCM so you can edit, master, archive, or feed it into a tool that does not understand Ogg.
| Property | OGA (Ogg Vorbis / Opus) | WAV (PCM) |
|---|---|---|
| Container | Ogg | RIFF |
| Compression | Lossy (Vorbis or Opus) | None — raw PCM |
| Typical bitrate (stereo) | 96-320 kbps Vorbis, 64-256 kbps Opus | 1411 kbps at 44.1 kHz/16-bit |
| File size (1 min stereo) | ~1-2 MB | ~10 MB at CD quality, ~30 MB at 24-bit/96 kHz |
| Max file size | Effectively unlimited (Ogg pages) | 4 GiB (32-bit RIFF size field) |
| Metadata | Vorbis Comments | Optional INFO/ID3 chunks (rarely populated) |
| Browser playback | Chrome, Firefox, Edge (Chromium); Safari 17+ for Opus only | All modern browsers |
| Native Windows support | Requires codec | Built-in since Windows 3.1 |
| Native macOS / iOS support | Limited; QuickTime needs plug-ins | Built-in |
| Released by | Xiph.Org (Vorbis 2000, Opus 2012) | IBM + Microsoft, 1991 |
| Royalty / licensing | Royalty-free, open spec | Royalty-free, open spec |
| Codec | Bit depth | Use when |
|---|---|---|
| PCM S16LE (default) | 16-bit | CD-quality, broadcast intake, voice pipelines, smallest WAV that's still lossless |
| PCM S24LE | 24-bit | Studio mixing/mastering, high-resolution archives, 50% larger than 16-bit |
| PCM S32LE | 32-bit | Headroom for further DSP without clipping; 2x size of 16-bit |
| PCM A-law / µ-law | 8-bit logarithmic | Telephony (G.711), small voice clips — quality below CD |
| PCM S16BE | 16-bit big-endian | Legacy SGI/AIFF-compatible workflows |
No. OGA almost always wraps Vorbis or Opus, both of which discard audio information during encoding. Decoding to WAV preserves what is left at full PCM precision but cannot reconstruct the discarded data — it is a lossless repackage of a lossy source, not a quality upgrade. The benefit is preventing further generation loss when you edit or re-encode.
Xiph's MIME Types and File Extensions wiki currently treats .ogg as the historical extension kept for hardware-player backwards compatibility, .oga as the audio-only Ogg extension introduced by RFC 5334 in September 2008, and .opus as the dedicated extension for Opus streams. In practice many encoders still emit .ogg for Vorbis audio because older devices look for that extension specifically. xconvert handles all three.
WAV stores every sample uncompressed. At 44.1 kHz, 16-bit, stereo that's 1,411,200 bits per second, or roughly 10.1 MB per minute. A typical Vorbis OGA at 128 kbps stereo is about 0.96 MB per minute — close to a 10:1 ratio. The trade is editing fidelity and universal playback in exchange for storage. If size matters more than editing, see compress WAV for post-conversion shrinking.
Leave it on ORIGINAL when you do not know the source rate — the converter will mirror whatever the OGA contains (most music is 44.1 kHz, most video-derived audio is 48 kHz). Force 48000 Hz only when you are feeding a video timeline (Premiere, DaVinci Resolve, Final Cut) that expects 48 kHz tracks; mismatched rates cause sync drift across long timelines.
Most on-prem recognizers (CMU Sphinx, Vosk, Whisper.cpp 16 kHz models) want 16 kHz mono PCM S16LE. Set Audio Channel to Mono, Sample Rate to 16000 Hz, and the codec preset to PCM S16LE. Cloud APIs that auto-resample (Google Cloud Speech, AWS Transcribe) accept higher rates, but downsampling at the source still saves bandwidth.
Both. xconvert decodes the Ogg container regardless of whether the audio bitstream is Vorbis (the original 2000-era codec) or Opus (standardized as RFC 6716 in September 2012, Xiph's successor format). Output WAV is identical PCM either way — codec only affects what the decoder sees on input.
The classic WAV/RIFF header uses a 32-bit unsigned integer to record the data chunk size, which limits a single file to 4 GiB — about 6.8 hours of CD-quality stereo, or 1.7 hours at 24-bit/96 kHz stereo. For longer single-file recordings, professionals use RF64 or W64 instead of WAV. If you are converting a multi-hour OGA, split it first with audio trimmer or expect the conversion to fail past the 4 GB threshold.
Yes on iPhone (built-in Files app and most music apps play WAV natively) and on Android (since Android 1.0). Car stereos vary — many USB-aware head units support WAV at 44.1 kHz and 48 kHz, but exotic 96/192 kHz files can fail. If your car rejects the file, re-export at 44.1 kHz, 16-bit stereo, which has the broadest hardware support.
Yes — see WAV to OGA. However, going OGA → WAV → OGA cascades two lossy encodes, so the second OGA will sound worse than the first even at identical bitrate. Keep the original OGA if you will need that round-trip, or use OGA to FLAC for a smaller lossless intermediate.
Functionally identical for the user — both decode an Ogg container to PCM WAV. The two pages exist because OGA and OGG are separate registered MIME extensions; if your file is .ogg use OGG to WAV, if it's .oga you are already on the right page. The pipeline behind both is the same FFmpeg-based decode path.