Audio Post Prodution with MaxxBCL

It use for audio mastering, live sound mixing, audio broadcasting etc.

Bypass toggles the compressor on or off.
Opto/Elct the compressor behavior between Opto coupled and Electro modes.
Ratio (1:1 – 1:12) adjust the amount of compression (ratio) for signal above threshold.
Threshold (0 - -60dB) sets the input level above which the soft knee compression starts acting to a significant degree.
Comp-Bass/Bass-Comp switches the order of the MaxxBass and Compressor processors in the chain.
Attack (0.5, 1, 2, 5, 10, 20, and 50 ms) controls the compression onset response time in milliseconds.
Attenuation Meter (0 - -12dB) the level of signal attenuation in dB.

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Professional Audio Collection - Waves's Mercury

Mercury is a powerful bundle pack for pro audio. It uses for audio mastering, editing and many more. It is a pro audio package.
From time-domain effects to equalizers, from dynamics control to noise reduction, from guitar sound modeling to the sound of classic analog components, there has never been such a comprehensive collection as this.
The Mercury Collection offers more effects, more channel components, more mixdown tools, more processors than ever before in one place.