# CallCleaner

Field recordings of animal calls carry wind, rain, vehicles and other animals, while clean training data are scarce. CallCleaner distills the general-purpose audio source-separation foundation model SAM-Audio into an 18.9M-parameter waveform-to-waveform denoiser that needs no detector or prompt and runs about 90 times faster than real time on a laptop CPU. On the 47 clips of at most 30 seconds in the Biodenoising test benchmark, it leaves 11 dB less noise around the call than Biodenoising and is better on 44 of 47 clips.

Field recordings of animal calls carry wind, rain, vehicles and other animals, while clean training data are scarce. CallCleaner distills the general-purpose audio source-separation foundation model SAM-Audio into an 18.9M-parameter waveform-to-waveform denoiser that needs no detector or prompt and runs about 90 times faster than real time on a laptop CPU. On the 47 clips of at most 30 seconds in the Biodenoising test benchmark, it leaves 11 dB less noise around the call than Biodenoising and is better on 44 of 47 clips.