Was it a brahma mic ? I got the impression it was not. If it is a Brahma, and I 
get its serial number, I can take a look.



umashankar



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________________________________
From: Sursound <sursound-boun...@music.vt.edu> on behalf of David McGriffy 
<da...@mcgriffy.com>
Sent: Friday, May 11, 2018 8:44:33 PM
To: Surround Sound discussion group
Subject: Re: [Sursound] [allowed] Re: Strange 'buzz' in Ambisonic recording

Given that this is a Brahma, it uses FFT based processing.  My suspicion is
that the artifact is actually something in the FFTs like a windowing
problem or a bug handling the first FFT bins.  At 48kHz, 1K block
boundaries would be about 48Hz.

Does using Xvolver give the same artifact?  IIRC I read that code and tried
to do the FFT filters in a compatible way in VVEncode so it could be they
both have the same trouble or it could just be a bug in my code.

David
VVAudio

On Fri, May 11, 2018 at 9:13 AM Fons Adriaensen <f...@linuxaudio.org> wrote:

> On Fri, May 11, 2018 at 01:03:57AM +0100, Gerard Lardner wrote:
>
> > Actually really only when the organ is playing; the brass is usually with
> > the organ, but not always. The buzz is present when the organ is playing
> > loudly.
>
> Could you make available a small part (20 seconds or so) of the original
> A-format file and the encoded B-format one for the part where you hear
> the 'buzz' ??
>
> --
> FA
>
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