Explanation of detecting intervals, vibrato, shakes, and vocal runs, with a demo that allows you to try singing.
How does karaoke's "precise scoring" quantify singing? This article organizes the official scoring criteria of major models with sources, and explains everything from F0 (fundamental frequency) estimation using the YIN algorithm to the detection logic for vibrato, pitch bends, and vocal fry, along with a scoring demo that runs in a browser. For more details, please refer to the technical column in the related links.
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basic information
【Technical Elements】 - Signal processing (pitch detection) - F0 estimation using the YIN algorithm - Web Audio API - Browser implementation using JavaScript - Detection of vibrato, pitch bends, and glissandos 【Category】Web System *Includes a scoring demo that can be tested in a browser.
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Applications/Examples of results
【Intended Use】 - Web application development using audio and sound signal processing - Music and voice training applications - Interactive content using microphone input 【Examples of Achievements】 - Published a karaoke scoring demo that runs in a browser on our company website.
Company information
Technosphere Co., Ltd. is a system development company based in Osaka that tackles customer challenges in advanced technology areas such as AI, IoT, and web system development. Since its founding in 2021, the company has leveraged a flat team structure to achieve a flexible and speedy development style. We are engaged in solutions that directly address social issues, such as image inspection AI and smart factory support systems.
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