Introducing: Lisp

A Level-Independent Sibilance Processor

This new plugin from Sleepy-Time DSP can automatically detect when and where those pesky "s" sounds occur regardless of the input level, allowing you to turn them down quickly, easily, and with highly transparent results.

Available Now!

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Powerful.

Aside from the main controls, many Sleepy-Time DSP plugins also include an "advanced mode" which allows power users to directly tweak the internal settings of the plugin's algorithm. Now you achieve the perfect sound every time.

Efficient.

Even with today's high-powered machines, fast code is still a top priority. That's why Sleepy-Time DSP's algorithms come highly optimized and tested in low-powered environments to ensure you're getting lightning fast results.

Affordable.

Sleepy-Time DSP strives to deliver high-quality audio processors without emptying your wallet. There are no download costs or hidden fees. Everything you find on this website is free to use in both personal and commercial projects.


Developer's Blog

By popular request, Sleepy-Time DSP is now accepting donations.

Click the title for more information.

Released: Lisp (Level-Independent Sibilance Processor)

Lisp, the brand new de-essing tool from Sleepy-Time DSP, is now available! (Best of all, it's available for free!)

Click the title to read more!