今日之音響設備不斷提升，數位化的大眾娛樂，包含音樂與電影，也越來越容易為人們所接觸，特別是透過網際網路。聽眾對於聲音音質的要求提高，聆聽音樂時的悅耳程度、臨場感的塑造、…等聽覺上豐富性的需求增加，並期待製作出更多樣性的音樂類型或者自行動手微調音響環境，因此我們開發了一個數位音訊與電腦音樂工作站，目前已具雛型。

此工作站建構於本實驗室所發展的多媒體系統軟體開發平台 ― Scream Multimedia Platform (SMP) ，SMP有助於軟體的開發測試並具備高度擴充性。目前工作站的雛型已包括多種數位音訊的效果器：數位式的多頻段參數型等化器、二轉五聲道轉換器、自動增益控制器、人工殘響產生器及廻旋音、揉音、合唱的效果器。以及兩種電腦音樂合成器：粒狀合成器與環形調變器。並且藉由SMP的使用，可利用類似的開發理念，繼續往下擴充其他各式各樣的效果器、合成器。

Because the quality of audio equipment increases and digitalized entertainments, including music and movies, become easier to access, especially by Internet, the audience demand of high quality sound, various music types, and lifelike presence. We developed a reconfigurable digital audio and computer music workstation which provides all kinds of sound effect processor and synthesizers. Users can easily produce music by using these synthesizers or modify the timbre by effect processors.

The workstation was developed on a platform implemented by SCREAM Laboratory, NCKU. This software platform supports a reusable, expandable, and user-friendly environment. At the present day, the sound effect module included a multi-band parametric EQ, a 2-to-5 channel conversion, an automatic gain controller, a reverberator, a flanger, a vibrato producer and a chorus producer and the synthesis module equipped with a granular synthesis and a ring modulator.We can keep developing many other kinds of sound effect producers and syntheses by using the same developing process.

[1]Parametric Equalization -- Julius O. Smith Ⅲ CCRMA, Stanford University Nov.6, 1992

[2]R. Irwan and Ronald M. Aarts, “Two-to-Five Channel Sound Processing” Journal of the Audio Engineering Society, vol. 50, no. 11, Nov, 2002

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[10]陳湘允，你知道殘響時間嗎，新音響雜誌，2003年七月號
http://www.ks-hifi.com/dr.chen/200308/chen0308.htm

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[12]Julius Orion Smith, Artificial Reverberation
http://ccrma.stanford.edu/~jos/waveguide/Artificial_Reverberation.html

[13]Shreyas A. Paranjpe “Time-variant Orthogonal Matrix Feedback Delay Network Reverberator”, Parthus Technologies San Jose, CA, USA, Presented at the 110th Convention 2001 May 12-15 Amsterdam, The Netherlands

[14]王小川，語音訊號處理，全華科技圖書股份有限公司，93年3月

[15]Udo Zölzer, Editor, DAFX - Digital Audio Effects, JOHN WILEY & SONS, 2002

[16]http://ccrma.stanford.edu/~nando/

[17]Yoichi Ando, Concert Hall Acoustics, Springer-Verlag, 1985

[18]Cycling '74, Max/MSP,
http://www.cycling74.com/products/maxmsp

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[20]Harmony Central, http://www.harmony-central.com/