Digital voice recorder (DVR)
A digital voice recorder (DVR) converts an analog signal representing a voice to a digital signal and records the digital signal in a recording medium when the voice is recorded, and converts the digital signal to an analog signal when the voice is reproduced. Pocket-sized voice recorders are widely used as a convenient way to take notes, store information and create documents in audio form. Storage and playback of audio recordings has traditionally taken place on analog media or devices. In recent years, compact audio recorders have been widely used in which the audio information is stored as digital data in a solid state memory. Such digital audio recorders employ nonvolatile semiconductor memory, such as flash memory, as a recording medium. In a flash memory device, the address information is conventionally stored in a single sector or page, which is erased and rewritten whenever a new message is recorded. Voice recording and/or reproduction apparatus such as audio tape recorders using a magnetic tape as a memory medium and mini-disks can be improved regarding their durability and miniaturized, inclusive of their electric cells and memory medium, only to a limited extent, and it is because they are mechanically driven. Such limitation can be eliminated if a semiconductor memory is used as memory medium because no mechanical driving will be required. Digital voice recorders provide a convenient way to record and recall data. Digital recorders can easily be linked to a computer recognition processes. Some DVRs can be used with computer voice recognition processes to turn a voice conversation into a text message.
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