A privately held, fabless semiconductor company, ESS Technology designs and … Contact online >>
A privately held, fabless semiconductor company, ESS Technology designs and
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ESS Technology Incorporated、DACADC,,。 Forrest Mozer 1983 。·（Robert L. Blair）。
ESS Technology Incorporated is a private manufacturer of computer multimedia products, Audio DACs and ADCs based in Fremont, California with R&D centers in Kelowna, British Columbia, Canada and Beijing, China. It was founded by Forrest Mozer in 1983. Robert L. Blair is the CEO and President of the company.[1]
Historically, ESS Technology was most famous for their line of their Audiodrive chips for audio cards. Now they are known for their line of Sabre DAC and ADC products.
ESS Technologies was founded in 1983 as Electronic Speech Systems, by Professor Forrest Mozer, a space physicist at the University of California, Berkeley and Todd Mozer, Forrest Mozer''s son, and Joe Costello, the former manager of National Semiconductors Digitalker line of talking chips. Costello left soon after the formation and started Cadence Designs with his former boss from National. Fred Chan VLSI designer and software engineer,[citation needed] in Berkeley, California, joined in 1985, and took over running the company in 1986 when Todd Mozer left for graduate school.
The company was created at least partially as a way to market Mozer''s speech synthesis system (described in US patents 4,214,125, 4,433,434 and 4,435,831) after his (3-year, summer 1978 to summer 1981, extended) contract with National Semiconductor expired in 1983 or so.
Electronic Speech Systems produced synthetic speech for, among other things, home computer systems like the Commodore 64. Within the hardware limitations of that time, ESS used Mozer''s technology, in software, to produce realistic-sounding voices that often became the boilerplate for the respective games. Two popular sound bites from the Commodore 64 were "He slimed me!!" from Ghostbusters and Elvin Atombender''s "Another visitor. Stay a while—stay forever!" in the original Impossible Mission.
At some point, the company moved from Berkeley to Fremont, California. Around that time, the company was renamed to ESS Technology.
Later, in 1994, Forrest Mozer''s son Todd Mozer, an ESS employee, branched off and started his own company called Sensory Circuits Inc, later Sensory, Inc. to market speech recognition technology.[2]
In 2001 ESS acquired a small Kelowna design company (SAS) run by Martin Mallinson and continues R&D operations in Kelowna. The Kelowna R&D Center developed the Sabre range of DAC and ADC products that are used in many audio systems and cell phones.
Forrest Mozer continues his research work at the University of California, these days as Associate Director of Space Sciences. He was awarded EGU Hannes Alfven Medallist 2004 for his work in electrical field measurement and space plasma and also was involved in building the microphone to record sounds from the Mars Lander. He is a member of the board of directors of Sensory, Inc.
Fred Chan held a number of positions at ESS, and was CEO of Vialta, an internet offshoot of ESS, until his stepping down on July 18, 2007, to pursue philanthropic interests.[citation needed]
Professor Mozer first became interested in speech technology when a blind student in his class in 1970 asked whether he could help design a talking calculator.[3] Mozer spent 5 years working on it, and his speech technology first appeared in the Telesensory Systems "Speech+" talking calculator, in a chip called the "CRC Chip", more commonly known as s14001a, the first self-contained speech synthesizer chip. This chip was also used in a few arcade games, notably Atari''s Wolf Pack, and Stern Electronics'' Berzerk and Frenzy, and in several of Stern''s pinball machines.
After a three-year exclusive deal with Telesensory Systems from 1975 to 1978, Forrest Mozer sold a 3-year license to National Semiconductor, and they created another chip using Mozer synthesis, the MM54101 "Digitalker". At first, even then, all words were encoded by hand by Mozer in his basement, but in the third or fourth year of the license, National came up with a software encoder for it. After the exclusive license expired (National seemed to have a "non-exclusive" license for a year or so), Mozer licensed the technology to ESS. After Mozer''s son Todd split off and created Sensory Circuits Inc., the technology was licensed there.
According to the Sensory Inc. history pages and old datasheets, they offered three types of compression:
and a few other PCM/LPC based systems.
Although Sensory bought up the Texas Instruments'' speech products, their main focus has been on speech recognition, and not synthesis.
Professor Mozer''s technique not only produced very realistic sounding speech, it also required very little on-chip (later, in software) RAM, a sparse and expensive commodity at that time. The advanced compression algorithm (patented, an early form of psychoacoustic compression using similar spectra of ADPCM-encoded waves) reduced the memory footprint of speech about a hundredfold, so one second of speech would require 90 to 625 bytes. With ESS-speech, samples that would normally require almost all of the 64 kilobyte memory of the Commodore 64 (if encoded in PCM) were so small, that the entire game fit into the RAM along with speech, without requiring additional loads from disk.
The luxury Sennheiser HE 1 electrostatic headphone[7] utilizes 8 internal DACs of the SABRE ES9018.
Widely recognized as the gold standard in audio digital-to-analog converter (DAC) technology, ESS PRO SABRE DACs set a new standard for a truly immersive, high-resolution audio experience. With readily available high-resolution, users are looking for equipment that fulfills the promise of a sound experience matching the artist''s original performance. PRO SABRE DACs deliver on that promise enabling the highest quality sound possible, regardless of file format or device.
SABRE DACs have consistently been selected for award-winning devices from the world''s leading audiophile system providers. ESS SABRE PRO DACs are designed for premium home theater equipment including Blu-ray players, preamplifiers, all-in-one A/V receivers, and more. Studio environments can also leverage the ES9038PRO SABRE DAC''s industry-leading performance for professional audio workstations and other equipment.
SABRE Two-Channel DACs are designed specifically for low-power applications that still demand audiophile performance. They are recognized for providing unprecedented levels of performance with ultra-low power consumption making them ideal for products such as high-resolution digital music players. SABRE Two-Channel DACs end the need to sacrifice a high-quality listening experience for portability and convenience.
For more than four decades ESS™ Technology has been on the cutting edge of audio technology. A privately held, fabless semiconductor company, ESS Technology designs and markets high-performance analog and audio devices for consumer, automotive, and professional audiophile systems. The company was founded in 1984 by Forest Mozer to produce synthetic speech for various devices including the first wave of speech enabled toys and iconic home computer systems, like the Commodore 64. Today, ESS Technology is best known for its SABRE series of high- performance audio products.
In 2022, the next generation of SABRE PRO DACs were introduced. The new flagship ES9039PRO and the ES9027PRO add new features and lower power as each device gives outstanding performance for both audiophile and professional markets.
Sabre ADCs – ESS introduced the first series of audiophile ADCs. The new series of SABRE PRO and SABRE ADCs with an Ultra Low Noise Floor Bandwidth of 200kHz. The Ultra Low Noise Floor Bandwidth is up to 10 times wider than the competition, enabling higher resolution at higher sample rates.
The PRO series, when in Mono mode, have up to +128dB of dynamic range and -117dB of THD+N, a performance mark that is the best in the industry today.
The new SABRE PRO ADCs are ideally matched with existing SABRE PRO DACs such as the ES9039PRO. Together, these parts make the most acoustically transparent signal processing loop available.
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