Subject: Re: speaker phones and listening in reverbation From: Peter Lennox <peter(at)LENNOX01.FREESERVE.CO.UK> Date: Thu, 26 Oct 2000 20:26:03 +0100apart from the direct-to-reverb ratio with respect to amplitudes, there's the question of signal path length. For a speakerphone, there is likely to be more similarity between the time of arrival of the direct, and that of the early reflections, and the reverberation, than for a close mic. I would say the same thing for timbral quality /air absorption of Hf..? I'm sorry, isn't there a really obvious reference (I just can't remember) to do with suppression of echoes in a learned acoustic? (which I always assumed was a binaural effect.) As regards disambiguation of sources in complex auditory environments, with reference to teleconferencing applications, British Telecom have been experimenting with a variety of hybrid directional diffusion systems for this application. ----- Original Message ----- From: "Patrick Zurek" <pat(at)SENS.COM> To: <AUDITORY(at)LISTS.MCGILL.CA> Sent: 26 October 2000 15:25 Subject: Re: speaker phones and listening in reverbation