I am a "Full Member" of the AES.
From 2000 onwards I have specialised in record reproduction with an emphasis on pitch stability and wow and flutter. My work has been mentioned on numerous occasions in newsstand magazines all over the World.
Latterly I have been working on early 78rpm records of both lateral and vertical modulation. I designed for my company the only precise control system in the World for accurately setting the speed of a turntable from 10-150rpm. This DDS device has 0.01rpm resolution and is measurabley accurate to 10ppm in the real world.
I have now (2014) finished working on an "Owl 1" "Owl Multifilter" and "Vadlyd MD12 MK3" replacement for analogue real-time equalisation of all 78's. The new TE-01EQ is now in use by leading archiving and restoration institutions including the New York Public Library and Indiana University Bloomington both who were so impressed they ordered a second one each.
In November and December 2013 in the newsstand magazine HiFi World, I had a 4 pages 'feature article' published about the philosophy and design of direct drive turntables.
In 2015 I did some research on why mono cartridges sound better on mono records than stereo cartridges used as mono.
2016 even more archiving and restoration work including a joint project for a modern and accurate cylinder player.
2017 introduced a new EQ - Preamplifier for even easier archiving of all types of records and cylinders.
Gave a talk at AES 2017 NYC about archiving.
Gave a talk about obsolescence in equipment used to archive old records at ARSC Baltimore 2018.
Fore more details see below :
Dave
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I first started in Audio in the late 60's as design engineer for Marriott Magnetics, where to customers' specification, I designed and specified magnetic recording heads which were used in applications from high quality audio to ticket readers for the London Underground.
Later as the UK took to the concept of a "Music Centre", I oversaw the manufacture of 18,000 FM Stereo tuner boards a year at RMS Audio in Cavendish Suffolk for the LoFi industry where RF was too difficult for most.
In the 80's I was a senior design engineer for Philips Electronics in Cambridge and was solely responsible for the transmit audio processor, FM audio demodulator, power supply and antenna switching on the PF85 and PFX hand held radio telephone as used by the police and others throughout the world. The production run ran unaltered to over 250,000 units.
In the 90's I specialised in radio threshold extension and audio processing of the audio telemetry channels of the NOAA weather satellites. I have given 7 lectures in the USA to NOAA and NASA scientists on the audio signal processing of their satellites and also the usage of the satellites by Universities and Third World Countries. The latest lecture was April 2013.
In 2013 presented with an award by the United States Department of Commerce for "29 years of service to users of weather satellites".
2014 my restoration and archival turntable won the UK "Turntable Of The Year" award.
2016 my audiophile turntable won the UK "Turntable of the Year" award
2017 for the second year running won the UK "Turntable of the Year" award, this time a modified Technics SL-1200GR with 78rpm
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Varied
Marriott Magnetics, manufacturers of magnetic audio tape heads
RMS Audio Cavendish
Pye mobile radio
Philips Electronics
Consultant to British Telecom, Satellite communications
Consultant to the Inmarsat Cooperation, Service C worldwide compliance
CEO of Timestep
Audio restoration
Audio archiving
Audio fidelity
Turntable design
Audio design
Audio FM demodulation from analogue RF
To be with like minded professionals and to both learn and share my experiences.
PO Box 2001
TQ6 9QN DARTMOUTH Devon
GB
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