Re: [Sursound] Acoustic dispersive prism article in Nature

2016-01-10 Thread Didrik Madheden
The link was broken. It was missing a 1 at the end. Here's a working link:

http://www.nature.com/articles/srep18911

On 10 January 2016 at 08:52, Dave Malham  wrote:
> Hmm, this is interesting. I've no idea whether it'll actually be of use to
> anyone but, hey, it's fun http://www.nature.com/articles/srep1891
>
> Dave
>
> --
>
> As of 1st October 2012, I have retired from the University.
>
> These are my own views and may or may not be shared by the University
>
> Dave Malham
> Honorary Fellow, Department of Music
> The University of York
> York YO10 5DD
> UK
>
> 'Ambisonics - Component Imaging for Audio'
> -- next part --
> An HTML attachment was scrubbed...
> URL: 
> <https://mail.music.vt.edu/mailman/private/sursound/attachments/20160110/705ee73a/attachment.html>
> ___
> Sursound mailing list
> Sursound@music.vt.edu
> https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit 
> account or options, view archives and so on.



-- 
/Didrik
___
Sursound mailing list
Sursound@music.vt.edu
https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit 
account or options, view archives and so on.


Re: [Sursound] Acoustic dispersive prism article in Nature

2016-01-10 Thread Dave Malham
Oops, cut'n'paste error. Thanks for the correction.

  Dave

On 10 January 2016 at 08:20, Didrik Madheden 
wrote:

> The link was broken. It was missing a 1 at the end. Here's a working link:
>
> http://www.nature.com/articles/srep18911
>
> On 10 January 2016 at 08:52, Dave Malham  wrote:
> > Hmm, this is interesting. I've no idea whether it'll actually be of use
> to
> > anyone but, hey, it's fun http://www.nature.com/articles/srep1891
> >
> > Dave
> >
> > --
> >
> > As of 1st October 2012, I have retired from the University.
> >
> > These are my own views and may or may not be shared by the University
> >
> > Dave Malham
> > Honorary Fellow, Department of Music
> > The University of York
> > York YO10 5DD
> > UK
> >
> > 'Ambisonics - Component Imaging for Audio'
> > -- next part --
> > An HTML attachment was scrubbed...
> > URL: <
> https://mail.music.vt.edu/mailman/private/sursound/attachments/20160110/705ee73a/attachment.html
> >
> > ___
> > Sursound mailing list
> > Sursound@music.vt.edu
> > https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here,
> edit account or options, view archives and so on.
>
>
>
> --
> /Didrik
> ___
> Sursound mailing list
> Sursound@music.vt.edu
> https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here,
> edit account or options, view archives and so on.
>



-- 

As of 1st October 2012, I have retired from the University.

These are my own views and may or may not be shared by the University

Dave Malham
Honorary Fellow, Department of Music
The University of York
York YO10 5DD
UK

'Ambisonics - Component Imaging for Audio'
-- next part --
An HTML attachment was scrubbed...
URL: 
<https://mail.music.vt.edu/mailman/private/sursound/attachments/20160110/4693e8f3/attachment.html>
___
Sursound mailing list
Sursound@music.vt.edu
https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit 
account or options, view archives and so on.


Re: [Sursound] Ambisonic recordings and noise reduction - best practise?

2016-01-10 Thread Trond Lossius
Thanks for all the replies to my initial question.

I have done some testing with all three approaches today. My conclusion so far 
is that running noise reduction on the B-format signal as two stereo pairs (WX 
and YZ) ends up distorting the sound field (spatial artefacts, less pronounced 
spatialisation). Doing it on the A-format signals sounds much better. I’ve not 
yet reached any conclusion on whether there are any differences between 
processing the original recorded A-format signals, or A-format signals decoded 
from B-format using ATK.

But workflow-wise it seems faster to do this using the VST/AU plugins rather 
than the standalone application, with all the splitting and linking of audio 
files required in that process.

Best,
Trond

___
Sursound mailing list
Sursound@music.vt.edu
https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit 
account or options, view archives and so on.


Re: [Sursound] Ambisonic recordings and noise reduction - best practise?

2016-01-10 Thread Jean-Pascal Beaudoin
Trond, not sure if this will be of any help but I had contacted Izotope
Support about best practices for denoising B-format last year.
(A-format was not an option for us since our Soundfield ST450 MKII mic
outputs B-format directly.)

Here was their answer:
"I spoke with our head DSP Engineer about what some best practices might be
in order to avoid any phasing issues when processing B-format audio in RX.
When De-noising your 4 mono audio tracks within RX 5 you have the option to
use the Spectral De-noiser or the Dialogue De-noiser. The Spectral
De-noiser won’t affect the phase of your audio so it should be safe to use.
The Dialogue De-noiser, however, does use some non-linear equalization and
compression/gating that may affect the phase in an undesirable way if
processed heavily. That being the case I would recommend using the Spectral
De-noiser to de-noise your B-format audio."

Regards,

Jean-Pascal Beaudoin | *Headspace Studio*
Co-founder / Head of Sound
+1 514-746-8461

2016-01-10 13:12 GMT-05:00 Trond Lossius :

> Thanks for all the replies to my initial question.
>
> I have done some testing with all three approaches today. My conclusion so
> far is that running noise reduction on the B-format signal as two stereo
> pairs (WX and YZ) ends up distorting the sound field (spatial artefacts,
> less pronounced spatialisation). Doing it on the A-format signals sounds
> much better. I’ve not yet reached any conclusion on whether there are any
> differences between processing the original recorded A-format signals, or
> A-format signals decoded from B-format using ATK.
>
> But workflow-wise it seems faster to do this using the VST/AU plugins
> rather than the standalone application, with all the splitting and linking
> of audio files required in that process.
>
> Best,
> Trond
>
> ___
> Sursound mailing list
> Sursound@music.vt.edu
> https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here,
> edit account or options, view archives and so on.
>
-- next part --
An HTML attachment was scrubbed...
URL: 
<https://mail.music.vt.edu/mailman/private/sursound/attachments/20160110/a8d3aeeb/attachment.html>
___
Sursound mailing list
Sursound@music.vt.edu
https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit 
account or options, view archives and so on.