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Audicom (from “Audio en computadora”, Spanish for “Audio in computer”), released in 1989, was the world's first PC-based broadcast automation system to use audio data compression technology based on psychoacoustics. The audio card was designed with standard CMOS logic ICs and used hardware to perform an audio data compression algorithm named ECAM, based on the critical bands masking principle, a property of the human ear. Today the same principle is used in all major lossy audio compression codecs. The audio card was plugged into an ISA slot of the PC and worked using direct memory access to the host memory. The driver and the client application were developed by Gustavo Pesci,〔(Gustavo Pesci Bio )〕 while the hardware was designed by Ricardo Sidoti and Elio Demaria.〔(La historia del Audicom )〕 Almost all the radio stations in the world today are using some similar technology, now manufactured by a lot of companies around the world.〔(Audicom introduced at LAB )〕 ==History of Audicom's software versions== Audicom (mid-1980s): first version, included a hardware compression audio card: ADX903 Audicom II (1989): most popular version for DOS systems, exported to more than 30 countries. Introduced the concept of Playlist for computer systems, and created the concept of Live Assist. When working in automatic mode, the music was selected from several directories with the /RANDOM command allowing the rotate styles along the day. Audicom III & 4: not released, but developed internally. Audicom 4 was the first version intended to be a Windows version (for 16 bit Windows), but due to problems in the Win16 platform it was canceled in favor of a Win32 system (Audicom 5). The change (including staff change) caused a delay to the project of two years. Audicom 5 (Introduced at CAPER 96, commercially available at 1997): first Windows system available. There were two versions (both Win32 applications): ECAM and multimedia. The multimedia version included the option of an 'audio co-processor card' (a compressor-expanser for greater dynamic range with conventional sound cards). New ECAM cards allowd to perform the mixing on the same card. Multimedia version used two cards for mixing and 3 cards for mix and cue (which was pretty hard to install on a same PC). The Audicom 5 introduced a novel concept of Artificial intelligence for selecting music called AutoDJ, which allowed for '1 second precision' to meet the spots schedule on real time (the operator can add or remove titles and the autoDJ will meet the schedule without cut any music). Other novelty was the virtual locator, which announces weather condition and time (based on a text to speech algorithm). A weather station was available as optional (SMT-100). Audicom 6 (October 2000): Only a multimedia version. It introduced a new play engine based on DirectX, allowing mixing on the same audio card. First broadcasting audio system to support MP3, allowing cross-fade within two different MP3 files and CUE concurrently (all software decoding). The product was partnered with the PCI audio card SX46. Audicom 7 (August 2002): Included multiuser support, network ready, included autoEdit (automatic editing of MP3's files without recompressing), full MP3 mixing. Also was partnered with an advanced PCI audio card: DSP48. 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「Audicom」の詳細全文を読む スポンサード リンク
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