Control the range of frequencies where broadband noise reduction is applied - great for reducing artifacts and surgical placement of noise reduction in the spectrum. Click on the Wash Window to control the frequency range used for broadband noise reduction.
SoundSoap+ includes a downward expander with adjustable compression ratio and threshold. This control is a very effective tool for reducing low-level noisy audio.
SoundSoap+ provides several additional tone enhancement controls for the multi-band compressor so you can have more control over which audio frequencies you want to bring out - great for enhancing vocals and action camera footage.
Usually audio with hum problems includes several harmonics of the fundamental hum frequency. SoundSoap+ lets you control the number of number of hum harmonics removed from the audio.
Highs & Lows
SoundSoap+ offers a control to cut high frequencies - useful for eliminating hiss and other high frequencies issues. You can also control the low-frequency cutoff for controlling rumble and other low-frequency issues.
SoundSoap 4 introduced the Track control to reduce the amount of noise reduction applied during louder parts of the audio. SoundSoap+ gives you control over the threshold setting used in the Track control, and the threshold setting used by the SoundSoap+ downward expander.
The features listed above are available in SoundSoap+, but not SoundSoap.