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The term Variable Control Voice Actuator (VCVA) refers to a digital recording technology developed by Olympus, which is implemented in many of their digital voice recorders. [1] It prevents the recording of silence, so pauses in a speaker's dictation do not waste time, power or recording space.
In 2004 the company launched the Digital Pocket Memo 9450 VC, at the time the first handheld dictation recorder with integrated voice commands, and received the IF Design Award for it in 2005. In 2004 Philips also introduced the first clip-on barcode module scanner for digital mobile devices. Philips also created the new SpeechExec software, a ...
Modern audio forensics makes extensive use of digital signal processing, with the former use of analog filters now being obsolete. Techniques such as adaptive filtering and discrete Fourier transforms are used extensively. [3] Recent advances in audio forensics techniques include voice biometrics and electrical network frequency analysis. [6]
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1980: Mitsubishi Electric introduces the X-80 ProDigi open reel 1/4" tape 15 ips 50.4 kHz 16-bit digital recorder ($5000 equivalent to $18,489 in 2023). Only 200 are sold worldwide. [37] 1980: Soundstream merges with Digital Recording Corporation, becoming DRC/Soundstream, to develop and market 50 kHz PCM recording to an optical card.
Digital Speech Standard / Quality Play (DSS-QP) Sony LPEC; Truespeech Triple Rate CODER (TRC) [23] – used in some pocket recorders; Micronas Intermetall MI-SC4 - used by voice recorders such as RadioShack Digital Recorder [24] and I-O DATA HyperHyde [25] FFmpeg (decoder only)