@audio/denoise vs SpectraLayers Pro

@audio/denoise is a free web tool for cleaning recordings and listening to or saving the result. It handles targets including steady background noise, mains hum, clicks, pops, vinyl crackle, clipping, wind rumble, plosives, sibilance, room reverb, and noise between phrases. The page describes thirteen open-source restoration methods and a classifier. Automatic mode measures properties of a recording, selects a specialized method, and displays its plan; users can instead choose methods such as dehum, declick, declip, and gate. Audio is processed in the browser, and the page says it is not uploaded or sent off the device. The approach uses classical signal processing rather than AI noise removal. For music, the page identifies hum, clicks, crackle, and clipping as treatable, while advising light use of broadband denoising and comparison with the original. Machine-learning models may perform better on heavy speech-over-noise. The associated npm package processes mono Float32Array audio. Automatic mode does not choose dereverb, which must be selected explicitly.

SpectraLayers Pro is a spectral audio editor that presents sound as visual objects for editing, repair, restoration, and sound design. Pro 13 adds Unmix Sound Effects to separate short sounds from continuous backgrounds such as wind, crowds, traffic, and nature. Ambience Heal fills gaps using ambience from the source layer, while Reconstruct resynthesizes selected spectral data. Voice DeClick removes mouth noises, and Voice DeCrosstalk isolates unwanted voices from a target voice. The software supports batch processing and can run standalone or as an external editor. Listed integrations include Ableton Live, Final Cut Pro, Logic Pro, Reaper, DaVinci Resolve, FL Studio, ACID Pro, Vegas Pro, KONTAKT, REAKTOR, HALion, and Tracktion Waveform; edited audio can be returned to the calling app. Pro 13 supports specified recent macOS releases on Intel and Apple silicon, and Windows 10 or 11 64-bit from version 21H2; Windows 11 on Arm requires 24H2 or later. A free trial is available, but no free plan or price is listed.