ocenaudio

ocenaudio addresses Audacity's main weakness: speed. Where Audacity must process the entire file before applying effects, ocenaudio previews effects in real-time as you scrub through the audio — drag the noise reduction slider and you hear the result immediately without waiting for a render. For EVP investigators reviewing 6 hours of overnight recording, this dramatically speeds up the workflow.

ocenaudio handles large files well — the application uses memory-mapped file access, so a 4GB overnight WAV file opens almost instantly and scrubs without lag. The interface is clean and intuitive: open file, view waveform, scan spectrogram for anomalies, select a region, apply noise reduction, export clip.

ocenaudio supports VST plugins on all platforms, allowing investigators to add advanced noise reduction or spectral repair plugins (such as those from Bertom Audio or similar free VST developers) to the application. The application also supports multichannel audio for spatial analysis of directional recordings.