Thank you very much!
> On Jan 25, 2018, at 12:47 AM, Richard Dobson <[email protected]> wrote: > > That's a very cool idea ... but also very difficult. The overall topic is > generally referred to as "localisation". You are describing "dummy head > recording". Spectrum analysis will be an important tool, though in some cases > inspecting the waveform may show how phase differences between the ears > contribute to localisation. This "inter-aural difference" is an important > element. It is known, for example, that localisation depends not only on > distance, but also on pitch - low frequencies are virtually impossible to > localise as the phase is not sufficiently different between the ears. Which > is why we may need 5 speakers, in just the right positions, to hear music in > "surround", but just one sub-woofer, which can be placed just about anywhere. > > The best place to ask about this is probably the sursound list, where there > is plenty of expertise on spatial audio, microphones, dummy heads, such > things as HRTFs, the role of the pinnae in sensing source direction, etc. > There are opinions on whether a dumy head is enough, or whether you need a > dummy torso as well, as it is thought we pick up subtle reflections from the > torso as another spatial clue. > > https://mail.music.vt.edu/mailman/listinfo/sursound > > Richard Dobson > > > On 24/01/2018 22:21, Mahboud Zabetian wrote: >> Hi. I know this isn't the right list, so if you please know of one, send me >> a link please. >> My daughter's doing a project for school. She wants to install two mono >> mics on a mannequin head, and record left and right from each so that she >> can do some experiments with how human ears hear sounds spatially. She'll >> be combining the two mics into one mic jack and then use AudioEngine on iOS >> to record two separate files of audio simultaneously. She will then play >> with the audio files on a Mac to make or break her hypotheses. >> I'm in charge of microphone procurement. I wanted something relatively flat >> that could be installed in an over-the-head headphone, so that she could >> easily go from mannequin to a person's head. I wanted it to work well >> without an amp, since that would just complicate things for her (I can't >> help her more than to pay for the microphone or show her the AudioEngine >> sample code). >> Any tips would be appreciated. (Good audio visualization tools would be >> great too. She may be getting some help from a university professor who >> suggested studying the waves on an oscilloscope. These days there must be >> plenty of tools on the Mac or iOS, no?) >> Thank you. >> mahboud >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Coreaudio-api mailing list ([email protected]) >> Help/Unsubscribe/Update your Subscription: >> https://lists.apple.com/mailman/options/coreaudio-api/richard%40rwdobson.com >> This email sent to [email protected] > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Coreaudio-api mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/coreaudio-api/mahboud%40zabetian.com > > This email sent to [email protected] _______________________________________________ Do not post admin requests to the list. They will be ignored. Coreaudio-api mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/coreaudio-api/archive%40mail-archive.com This email sent to [email protected]
