Convert OPUS to WAV
Drop a .opus file and download a 16-bit PCM WAV. Sample rate and channel count are preserved.
Transcription pipelines, forced aligners, and older editors frequently want PCM. Opus is efficient but not universally supported, so decoding it is the usual first step in any speech workflow.
Expect a large jump in size
A 30-second voice note at 32 kbps is roughly 120 KB. As mono 48 kHz PCM the same audio is about 2.8 MB. Nothing was added; uncompressed storage is simply that much less efficient.
Sample rate reporting
Because Opus decodes at 48 kHz, that is the rate written into the WAV header. Tools expecting 44.1 kHz will resample it themselves, and for speech recognition the rate rarely matters as long as it is declared correctly.