A DI unit, or direct input box, is a device used to connect musical instruments, like electric guitars or keyboards, directly to a mixing console or recording equipment. It converts the instrument's high-level, unbalanced signal into a low-level, balanced signal, which helps to reduce noise and interference. DI units are commonly used in live sound and recording setups to ensure a clean and clear audio signal from the instrument to the sound system.

英語での「DI unit」の定義と意味

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