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Supports: WEBA
WEBA is the audio-only variant of WebM — an Opus or Vorbis stream wrapped in a Matroska-derived container. It shows up everywhere browsers touch audio: yt-dlp Opus rips of YouTube, MediaRecorder captures from web apps, Discord voice-recording bots, and Web Audio API exports. WAV is uncompressed PCM — every sample stored verbatim. Common reasons to convert WEBA → WAV:
| Property | WEBA | WAV |
|---|---|---|
| Container | WebM (Matroska-derived) | RIFF |
| Codec | Opus or Vorbis (lossy) | PCM (uncompressed) |
| Typical bitrate | 64-160 kbps Opus | 1411 kbps (16-bit/44.1k stereo) |
| Typical 4-min track size | 3-5 MB | 40-80 MB — about 10-15× larger |
| Native sample rate | 48 kHz (Opus) | 8-192 kHz selectable |
| Editing support | Limited — many DAWs need FFmpeg | Native everywhere since the 1990s |
| Hardware support | Browser + VLC + Audacity | Universal (samplers, CDJs, broadcast) |
| Best for | Web delivery, browser capture | Editing, mastering, archival |
| PCM format | Sample width | Best for |
|---|---|---|
| PCM_S16LE | 16-bit little-endian | CD quality, default — universal compatibility |
| PCM_S24LE | 24-bit little-endian | DAW work, mixing headroom, pro studio |
| PCM_S32LE | 32-bit little-endian | Mastering, archival, float-equivalent precision |
| PCM_S16BE | 16-bit big-endian | Legacy AIFF-adjacent hardware / older Macs |
| PCM_ALAW / PCM_MULAW | 8-bit companded | Telephony, VoIP archival, low-bandwidth voice |
WEBA stores Opus or Vorbis — perceptually-encoded lossy audio at 64-160 kbps. WAV stores every sample at full PCM resolution, which is roughly 1411 kbps for 16-bit/44.1 kHz stereo. A 5 MB WEBA Opus rip becomes a 40-80 MB WAV — about 10-15× the size. This is normal and expected. WAV is for editing and archival, not for storage efficiency.
No — quality is capped by the source. Opus and Vorbis are lossy codecs that discard perceptually-redundant data during encoding. Converting to WAV unwraps the compressed audio into uncompressed PCM but cannot recover anything that Opus or Vorbis threw away. The benefit is preventing further quality loss during editing and ensuring compatibility with DAWs and hardware that don't handle WEBA.
48000 Hz. Opus internally always operates at 48 kHz — even when the source was recorded at 44.1 kHz, the codec resamples internally. Picking 48 kHz on output skips an unnecessary resampling step. If you specifically need 44.1 kHz for CD burning, the converter will resample cleanly, but 48 kHz is the most faithful default for Opus sources.
Yes. yt-dlp's -x --audio-format opus saves YouTube audio as .opus or .webm/.weba — both are Opus inside a WebM container. Upload the .weba (or rename .webm to .weba if needed) and the converter decodes the Opus stream and re-wraps it as PCM WAV. No quality loss beyond what was already in the YouTube source.
Yes. Use the trim section to enter a start time and duration. Both accept seconds (90.5) or HH:MM:SS.sss format (00:01:30.500). Useful for cutting a specific quote out of a long browser-recorded interview, pulling a single song from a YouTube concert rip, or extracting a moment from a Discord voice log.
For single-speaker voice (podcasts, voice memos, transcription source material), mono is fine and cuts file size in half. For music, multi-mic interviews, or anything with stereo imaging, keep stereo. If unsure, leave channels at "Original" — the converter preserves the source's channel layout.
Audacity needs the FFmpeg library installed to decode WEBA / Opus. It works once configured, but many users hit the "unsupported file format" wall and don't realize FFmpeg is required. Pre-converting WEBA to WAV side-steps this entirely — every Audacity install opens WAV out of the box, with smooth scrubbing and accurate waveform thumbnails.
Yes. The converter detects the codec inside the WEBA container automatically and decodes either Opus or Vorbis to PCM WAV. Older browser recordings and some legacy web apps still output Vorbis; modern Chrome/Firefox MediaRecorder and yt-dlp default to Opus. Both decode cleanly.
Yes — the decode step from Opus/Vorbis to PCM is deterministic and exact. The resulting WAV is bit-identical to what the codec would produce on playback. There is no additional lossy step. Subsequent re-saves of the WAV are also bit-identical, unlike WEBA where each re-encode degrades quality.