英国PrismSound  
英国PrismSound公司是当今世界上音频测试仪开发厂商中产品技术水平领先的公司之一。该公司在英国音频工业界有多年的产品开发和咨询经验。本着对声音完美追求这一宗旨，该公司先后为音频工业界内外厂商开发了多种高质量的产品。PrismSound 的旗舰产 品之一，dScope Series III，正好体现出该公司对产品的严格要求及该公司一贯严谨的工作作风。

DScope是一台功能强大的音频分析仪，它外形轻巧，通过VB Scripts这一工具使得它的功能无限扩充，可同时完成多项测量任务, 并有实时的结果显示。另一方面, dScope的测试精度完全可以满足生产部门,甚至研发部门的要求。DScope还可将测量的数据及报告形成标准的Microsoft Office文件、数据库形式，以便于质量分析及数据跟踪。
The company was originally founded in 1987 as Prism Sound Ltd, the brainchild of two engineers, Graham Boswell and Ian Dennis. They had first met when working on the ground-breaking DSP program at world-renowned audio mixing desk manufacturer Rupert Neve & Company in Cambridge, England. In its early years, Prism Sound became an acclaimed Research & Development consultancy, specialising in digital audio applications.

Over the next four years Prism Sound grew rapidly and, by 1991, had grown from two engineers to a team of twelve. The Prism Sound had also grown from an initial business start up to a respected brand, known for performance, quality and reliability. One of the first major projects that Prism Sound undertook at this time was the development of a large commentary and communications switching matrix commissioned by the BBC for the 1992 Barcelona Olympics. This product subsequently became an important market leader in broadcast talkback audio switching.

1992 saw the arrival of Prism Media Products Ltd, a company set up to develop, market and sell Prism Sound branded professional audio products. The aim was to apply the bespoke engineering capability of the company to develop a catalogue of high-end audio products. The catalogue began with studio grade analogue-to-digital and digital-to-analogue converters, which immediately received global acclaim for their audio transparency.

Prism Media Products soon recognised, with encouragement from major broadcast organizations, that their uncompromising quality standards would naturally lead to the development of audio test and measurement instruments. The resulting DSA-1 digital audio transmission analyzer has since become a worldwide industry standard in broadcasting and recording studios.

There followed the dScope Series III comprehensive audio measurement system exploiting not only Prism Sound’s instrument-standard conversion and DSP hardware and software, but also the processing resources of the associated PC. Further expansion of the Test and Measurement product range has continued with the release of a range of dS-NET peripherals and the AutoTestSQL automated test and data logging application. The accurate measurement of today’s digital amplifiers is a particular strength of the dScope Series III system. The company’s consultancy background enables Prism Media Products to offer an unrivalled responsiveness to customer needs and a cost-effective bespoke engineering service, providing hardware and software solutions to customer-specific audio test requirements.

The Prism Sound Group’s creative application of its digital audio processing capability also led to the development of the TRANSERV multi-channel voice recording and transcription system. This has diverse applications from call centres, conference facilities and law courts to military, security, broadcast and government legislative assemblies. TRANSERV systems are now in service with many international facilities, Government departments and Defence operations.

The following table is a summary of the Prism Sound Group product ranges:

Test and Measurement: dScope Series III precision dual domain (analogue & digital) audio analyzer / test system.
dS-NET digitally controlled test and measurement auxiliary equipment.
DSA-1 hand-held AES/EBU transmission analyzer
AutoTestSQL production test automation and logging system.

Recording and Production: Ultra-high resolution A/D and D/A converters, including the ADA-8XR modular multi-channel unit, the Orpheus 8 channel FireWire converter, and the 2-channel AD-2 and DA-2 converters.
Analogue signal processors, including the Maselec MEA-2 Stereo Equalizer, MLA-2 Stereo Compressor and the MMA-4XR 4-channel microphone pre-amplifier.

Logging and Transcription TRANSERV multi-channel networked digital audio and data recorders for monitoring, logging and transcription applications.

Rapid growth in US sales resulted in the founding in 1995 of Prism Media Products Inc, the US branch of Prism Media Products Ltd. The introduction of a US office was seen as a major step forward in the expansion of the Prism Sound brand. Its continued effectiveness can be seen today with a dealer network which stretches the length and breadth of North America.

Today, in addition to its comprehensive catalogue of products, Prism Sound still continues to provide R&D consultancy to outside clients whilst investing heavily in new technologies and new products. Continued investment in the future ensures that the Company will continue to grow, whilst staying at the forefront of technology.

The excellence and value of Prism Sound Group products and services has always appealed to the major names in the industry. Recent customers have included: Philips, Sony, Toshiba, AKM, Harman, Abbey Road Studios, Metropolis Studios, DTS, Jim Henson Co, Walt Disney, London Metropolitan Police, US Department of Justice, BBC, NHK, Sting, AMS-Neve, Solid State Logic, CBS, ABC.... the list goes on.