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The Sound Blaster 16 is a series of sound cards by Creative Technology. They are add-on boards for PCs with an ISA or PCI slot. ==Sound Blaster 16== Sound Blaster 16 (June 1992), the successor to the Sound Blaster Pro, introduced 16-bit digital audio sampling to the Sound Blaster line. The Sound Blaster 16 also added an expansion-header for add-on MIDI-daughterboards with sample-based synthesis capabilities complying to the General MIDI standard, a socket for an optional digital signal processor dubbed the ''Advanced Signal Processor'', later ''Creative Signal Processor'' (''ASP'', or later ''CSP''), and an MPU-401 compatible UART for communication with external MIDI-devices. The Sound Blaster 16 retained the Pro's OPL-3 support for FM synthesis, and was mostly compatible with software written for the older Sound Blaster and Sound Blaster Pro sound cards. The SB16's MPU-401 emulation was limited to UART (dumb) mode only, but this was sufficient for most MIDI software. When a daughterboard, such as the Wave Blaster, Roland SCB-7, Roland SCB-55, Yamaha DB50XG, Yamaha DB60XG was installed on the Sound Blaster, the Wave Blaster behaved like a standard MIDI device, accessible to any MPU-401 compatible MIDI software. The ASP or CSP chip added some new features to the Sound Blaster line, such as hardware-assisted speech synthesis (through the ''TextAssist'' software), QSound audio spatialization technology for digital (PCM) wave playback, and PCM audio compression and decompression. Software needed to be written to leverage its unique abilities, yet the offered capabilities lacked compelling applications. As a result, this chip was generally ignored by the market. The ''Sound Blaster 16'' featured the then widely used ''TEA2025'' amplifier IC which, in the configuration ''Creative'' had chosen, would allow approximately 700 milliwatts (0.7 watts) per channel when used with a standard pair of unpowered, 4-Ohm multi-media speakers. Later models (typically ones with ViBRA chips) used the also then-widely used ''TDA1517'' amplifier IC. By setting an onboard jumper, the user could select between line-level output (bypassing the on-board amplifier) and amplified-output. Due to its popularity and wide support, the Sound Blaster 16 is emulated in a variety of virtualization and/or emulation programs, such as DOSBox, QEMU, Bochs and VirtualBox, with varying degrees of faithfulness and compatibility. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sound Blaster 16」の詳細全文を読む スポンサード リンク
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