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YouTube is a place to discover, watch, upload and share videos.

Tests your audio equipment, speakers, room acoustics and hearing. Audio signals and test tones playable online. High resolution sound test files available for free download.

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The web-page of a data analysis and computer programming technical services company

Absolute pitch (AP), widely referred to as perfect pitch (PP), is the ability of a person to identify or recreate a musical note without the benefit of an external reference.

wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual. Our multilingual how to manual has free step-by-step instructions on how to do all types of things.

Download Streaming Video with WM Recorder, WM Capture and WM Converter

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Shop the Sony online store and buy cameras, TVs, tablets, PS4, 4K camcorders and more, directly from the manufacturer. Sony is the leader in home entertainment.

Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with friends, upload an unlimited number of photos, post links and videos, and learn more about the people ...

AVS Video Converter, AVS Audio Editor, AVS Video Editor, AVS Audio Converter and other reliable tools for multimedia processing. Download & try now!

A global community for violinists, students learning how to play violins, and fans of classical and violin music.