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    Dr. Edgar Choueiri explains BACCH

    You must have meant arrive at the pinnae - if it just means arrive at the ear canal it would have bypassed the pinnae. This is why I want to know if HRTF includes the pinnae (outer ear) or just the ear canal and eardrum with cochlea.
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    Dr. Edgar Choueiri explains BACCH

    I am puzzling over whether HRTF should include pinna effects. If you say it includes the HRTF of the dummy head, then why would that be correct for us? I was thinking that the dummy only uses the ILD and ITD of the sound reaching its ears, and then records a flat response for those signals and...
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    Dr. Edgar Choueiri explains BACCH

    Your puzzlement is correct and makes a good point. My take on binaural recording is that we do not need to try to correct or record individual HRTF, because it is all individual for each of us. The dummy head is using nobody's HRTF, just the ITD and ILD of the sound at the head. That gets sent...
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    Dr. Edgar Choueiri explains BACCH

    If you have ever been to a live concert you have a general idea of where instruments are positioned w respect to the whole soundstage and the room around them. I got into recording to witness Toole's "Circle of Confusion" and to be able to compare the live vs recorded. In general the instruments...
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    Dr. Edgar Choueiri explains BACCH

    The system is not two channels piped to your two ears. You do not listen to stereo binaurally. We can make recordings based on either ITD or ILD, spaced or coincident, a stereo pair or multimikes. Summing localization seems to work with all of them with good speaker positioning and room...
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    Dr. Edgar Choueiri explains BACCH

    Recordings do not "contain crosstalk." The term refers to binaural playback systems in which we cancel the opposite channel speaker at the ears. In live music there is no such thing as crosstalk, just normal spatial hearing. Playback in spatial audio systems such as stereo and surround sound...
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    Dr. Edgar Choueiri explains BACCH

    Well, yes but if we model the reproduction after the original and use the room reflections as additional (virtual) sources we can make 2 channel sound very good indeed. The trick in the future will be to make better use of the plethora of channels we now have available to us for the discrete...
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    Dr. Edgar Choueiri explains BACCH

    Yes. Both are field type systems. Stereo just seems to be a binaural type system because of the mistake in history that left us with only two channels to work with. It SEEMS like the system is two ears/ two channels/ two speakers aiming their sound into your ears but it is not. The term "stereo"...
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    Dr. Edgar Choueiri explains BACCH

    “A question of particular importance to communications engineers is the technical feasibility of transmitting a particular spatial impression as faithfully as possible across a distance of space and time. The purely acoustical or electroacoustical part of this task is identical with the task of...
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    Dr. Edgar Choueiri explains BACCH

    There is no way I can get a word in edgewise and get on top of this conversation, but you are all mistaken in thinking that there is a single spatial audio theory combining everything we know about the psychoacoustics of auditory perspective systems. As explained by Jens Blauert, there are two...
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    Dr. Edgar Choueiri explains BACCH

    There is no way I can get a word in edgewise and get on top of this conversation, but you are all mistaken in thinking that there is a single spatial audio theory combining everything we know about the psychoacoustics of auditory perspective systems. As explained by Jens Blauert, there are two...
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    Was anybody at the Sean Olive talk at CanJam?

    My observation is that there is no single equivalency between frequency response and what live music "sounds like." Music is performed in many different environments, mainly differing in acoustics - size and reverberant field. You can't directly measure the frequency response of a hall and just...
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