Research On The Tips Musical System And Video-based Virtual Instrument

With the development of computer technology, technology-based virtual MIDI instruments can be used to simulate not only the synthesis of real instruments such as piano, organ, such as a single instrument sound quality, and increase the adoption of software synthesizers Polyphony, improved MIDI control, large-scale synthesis of a band live performance by the stirring sound issued.The thesis focused on using computer technology to further improve human-computer exchange of the instruments for the general public to provide more concise, more convenient musical practice, teaching and entertainment tool. Papers mainly related to non-video-based virtual keyboard instruments and performance-based LED array system prompt. LED arrays are designed based on the prompt performance system, which orders extracted from the MIDI instrument key information, and through the USB interface the corresponding LED lights light up, making music without any knowledge can be based on arrays of LED lights out playing tips beautiful music. The design of video-based virtual keyboard, virtual instruments available are the use of the basic input keyboard, mouse, control equipment or professional input, this article by ordinary camera, the use of technology acquisition VFW images, the image partition at the same time, each region corresponds to a button, through statistical analysis of images to determine which finger pressing region, and further instruction stream MIDI synthesized from the corresponding PC-note performances.