Who am i?

GGM_loresOriginally from St. John’s, Newfoundland, Geoff Martin completed his Bachelor of Music in pipe organ at Memorial University of Newfoundland in 1990. He is a graduate of McGill University’s Masters of Music in Sound Recording and, in 2001, he completed his doctoral research in which he developed a method of using digital signal processing to simulate reflections from quadratic residue diffusers for multichannel acoustic environments.

Following completion of his doctorate, Geoff was a Faculty Lecturer for McGill’s Music Technology area, where he taught courses in new media, electronics, and electroacoustics. In addition, he was a member of the development team for McGill’s new Centre for Interdisciplinary Research in Music Media and Technology (CIRMMT). He taught electroacoustic music composition and conducted the contemporary music ensemble at the University of Ottawa. He has also been a regular member of the visiting faculty in the Music and Sound Department at the Banff Centre for the Arts in Alberta, Canada.

Geoff was a member of the Audio Engineering Society (AES) from 1990 to 2013 and served on the executive for the Montreal Student Chapter for two years. He has published and presented numerous papers on microphone techniques, multichannel audio and virtual acoustics. In addition, he has been an invited presenter at many AES conferences, speaking on subjects including recording studio practices, signal processing and automotive audio. Geoff served as the Papers Chair for the 24th International Conference of the AES titled “Multichannel Audio: The New Reality” held at The Banff Centre. He was the chair of the Technical Committee on Microphones and Applications and the Chair of the Conference Policy Committee. He was also a member of the review board for the Journal of the AES.

He moved to Denmark in the Fall of 2002 to begin work in the research and development area of the Automotive Audio division of Bang & Olufsen a/s. He is currently the Tonmeister and Technology Specialist in Sound Design in B&O’s acoustics department, in addition to sitting on the company’s Board of Directors as an elected Employee Representative.

Since starting at B&O he has been the sound designer or assistant sound designer for the following products:

  • BeoLab 90
  • BeoLab 20
  • BeoLab 19
  • BeoLab 18
  • BeoLab 17
  • BeoLab 15/16
  • BeoLab 14
  • BeoLab 12-series
  • BeoLab 11
  • BeoVision 11 series
  • BeoVision 12
  • BeoVision 14
  • BeoVision Avant & Avant NG series
  • BeoVision Horizon
  • BeoPlay V1
  • Advanced Sound System for the Audi A8 (Gen. 1)
  • Sound System for the Audi R8 (Gen. 1)
  • BeoSound 1, 2, 8, and 35
  • BeoLit 12
  • BeoPlay A3 and A9
  • BeoPlay headphones: H3, H4, H5, H6 (mk1 & mk2), H7, H8, and H9

He is the inventor of the Adaptive Sound Technology (AST) system in the BeoSystem 3 and the True Image upmixing algorithm in the BeoSystem 4, as well as the signal flow designer for the audio processing in the BeoVision 11, 14 & Avant series. He also wrote the Technical Sound Guide advanced user manuals for the BeoVision televisions and the BeoLab 90 available on the B&O website.

In addition, Geoff is also continually writing a textbook on sound recording which is available at his website at www.tonmeister.ca.

In his spare time, he makes bespoke fountain pens and restores vintage pens, available through his other website at www.pm-pens.com.

Some additional and more detailed information can be found here:

LinkedIn profile page

External Articles

Bang & Olufsen’s Geoff Martin Pursues the Perfect Sound

Bang & Olufsen promotional video

Bang & Olufsen BeoLab 14 promotional video



  1. Hey Geoff, though I’ve departed professional audio (in leaps and bounds – McGill is a distant memory) I still enjoy visiting your pages. Good work! Keep it up.

  2. hi geoff, i want subscribe to newsletter of your blog, so i will have real time notification about new articles on it.
    is it possible ?

    thank you

  3. Hi Mauro,

    I’ve just added the option to do this. On the bottom of the right-hand side of the page, you should now see a section titled “Subscribe to Blog via Email”.


  4. hi Mauro,

    Sorry, I don’t understand this question. The easiest way to see all the postings is to go to http://www.tonmeister.ca/wordpress/ and start going backwards in time using the numbered links at the bottom of the page. However, this means that you’ll have to go through EVERYTHING – a lot of which is nonsense… :-)


  5. Gary Eickmeier says:

    Are you the same Geoff who posts in the rec.audio.pro newsgroup? Also, what is this list of test tracks that is posted here – a B&O disc that is available?

  6. Hi Gary,

    I used to post in rec.audio.pro – but I don’t think that I’ve sent anything to them for at least 8 years or so.

    The list is just a list – there is no disc. I update it occasionally, but only on a Tidal playlist….


  7. Hi again Gary,

    I just did a Google search for “rec.audio.pro geoff” to see if I recognised anything.

    I found lots of relatively recent posts from someone named geoff – but that person is definitely not me.


  8. Mark Edmiston says:

    Hi Geoff,

    I just stumbled on your blog – American here into high end for ages, but conversely hate piles of equipment. I currently have Sound Lab electrostats, but am intrigued by powered/dsp driven speakers. Have had Meridian in the past – loved the aesthetics but underwhelmed by the sound. I am a multichannel music guy, and happy to see you address this. I have a number of questions about processing, DSD, etc. Would you be willing to explore this with me? I have an integrated music/video system.

  9. Hi Mark,

    I’d be happy to try to answer any questions you have – as long as the answers don’t violate any contractual/secrecy issues I have with my employer. :-)


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