Re: OT: Microphone experts mainling-list
Re: OT: Microphone experts mainling-list
- Subject: Re: OT: Microphone experts mainling-list
- From: Mahboud Zabetian <email@hidden>
- Date: Thu, 25 Jan 2018 01:18:27 -0800
Thank you very much!
> On Jan 25, 2018, at 12:47 AM, Richard Dobson <email@hidden> 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
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