Wave Wash and Polish   
http://www.baxtrom.com

Wave Wash & Polish is a batch filter designed to remove stationary and transient noise ('hiss' and 'pops') from music and other audio data stored in standard 16/8 bit sterero/mono wave files (sorry, no direct support for mp3 files). You can select a bunch of files, click on a button and go for a walk with your dog while WWP does the dirtywork. On a 2 GHz computer, WWP will process approximately 3-4 minutes of CD-quality data per minute. WWP is customizable and features a variety of different skins, for example Walnut.

MSU Denoising VirtualDub Video plugin   
http://www.compression.ru

Free high-quality video denoiser plugin for VirtualDub. Easy to use. The filter is designed for noisy video stream processing, video quality improvement, or video preprocessing, e.g. for preprocessing before compression or deinterlacing. Allows flexible denoising level setup in temporal and spatial dimensions. The filter suppresses noise in both spatial and temporal domains. For each type of denoising different properties could be set in the propery box. With specific combinations, spatial-only or temporal-only denoising could be enabled.

Helicon Filter Free   
http://www.helicon.com.ua

Helicon Filter Free offers full set of the easy to use post processing tools to the digital photographer. Intuitive interface, context help and full screen preview make it easy to learn. The Helicon Filter Free covers 99% of the needs of the photo enthusiast whose usual workflow includes the following steps: 1) noise reduction (otherwise noise will be amplified by sharpening and brightness changes) 2) exposure correction (brightness, contrast, shadows, etc.) 3) white balance and saturation adjustment 4) distortion correction 5) cropping, rotating, resizing 6) sharpening and deblurring 7) adding frames and text The Helicon Filter Free is one of the best tools in each of the above categories and received many awards. It also includes the Red Eye tool.

Helicon Filter   
http://www.helicon.com.ua

Helicon Filter offers full set of the professional post processing tools to the digital photographer. Intuitive interface, context help and full screen preview make it easy to learn. The Helicon Filter covers 99% of the needs of the photo enthusiast whose usual workflow includes the following steps: 1) noise reduction (otherwise noise will be amplified by sharpening and brightness changes) 2) exposure correction (brightness, contrast, shadows, etc.) 3) white balance and saturation adjustment 4) correction of chromatic aberration (blue or purple fringing near overexposed areas) 5) distortion and vignetting correction 6) cropping, rotating, resizing 7) sharpening and deblurring 8) adding frames and text (shadow, 3D, fade out and other effects) The Helicon Filter is one of the best tools in each of the above categories and received many awards. It also includes the Red Eye tool. Helicon Filter also lets you merge underexposed and overexposed images to get the perfect image with the high dynamic range.

EnhanceMovie   
http://movavi.com

EnhanceMovie is a handy, inexpensive, brainlessly-simple software that automatically cures any digital video from common problems - colors off balance, blurred picture, interlacing video or the "too dark" syndrome, among other things. The program has two major advantages. The first one comes in the form of multiple auto-filters that automatically "polish" video with one button click. Importantly, program users don't need to know anything about video editing or remastering in order to dramatically improve quality of their digital videos. EnhanceMovie does it all seamlessly, without user intervention. The second advantage is an option to select a part of the video (interval) that needs to be edited, and apply necessary filters only to that section. In addition to autofilters, the program offers multiple professional filters, such as DeNoise, Auto White Balance, Deblocking (for working with analog videos) and many others. Plus, EnhanceMovie has several artistic filters that will make home videos look very unusual. These are Mosaic, Posteraise, Grayscale, Invert, and they can be used to make home videos look like an old 30s movie or very futuristic. Key features: - Auto Filters: Magic Enhance, Auto Contrast, Auto Saturation, Auto White Balance. - Effective video filters: Denoise, Deiinterlace, Deblocking, Brightness/Contrast, Sharpen, Blur, Color Temperature, Hue/Saturation, Gamma, Color Balance, Chroma Balance. - Artistic video effeccts: Mosaic, Add Noise, Posterize, Diffuse, Grayscale, Invert - AVI, MPEG, VOB, MP4, MOV, WMV formats supported - Filters and effects can be applied to specified fragments of video - Play video in the Original, Filtered and Split Modes. - Drag-and-Drop interface, very easy to learn and use.