Hence the discussion re MPEG...!

;-)



On 20 Jan 2013, at 4:53 pm, Dave Malham <dave.mal...@york.ac.uk> wrote:

> Hi Jo,
>     To some extent, yes, but only if you are working with material
> which can tolerate the artefacts that blind source separation
> algorithms will, sooner or later - and usually sooner - generate. Such
> algorithms, including those in Harpex, are getting much better (I can
> remember hearing some really terrible earlier attempts) but, so far
> anyway, it is always possible to find some material that will screw
> them up.  There are two factors which will reduce this as time goes on
> - the continuing improvements in the technology and the fact that much
> of the audience these days have perceptions that are so screwed up by
> listening to compressed audio that maybe the artefacts maybe won't be
> heard by them anyway :-)
> 
>  All the best
>   Dave
> 
> 
> On 20 January 2013 11:58, Joseph Anderson <j.l.ander...@phonecoop.coop> wrote:
>> Hi Dave,
>> 
>> I'll throw in...
>> 
>> 
>> On 20 Jan 2013, at 9:02 am, Dave Malham <dave.mal...@york.ac.uk> wrote:
>> 
>>> The biggest limitation to
>>> the whole thing is the availability of higher order microphones,
>> 
>> Actually, as we've heard, upsampling from a 1st order mic can give very good 
>> results. Svein Berge's Harpex (http://www.harpex.net) is available as a 
>> plugin... which means the production path open.
>> 
>> 
>>> though Eigenmikes are becoming more widely available and one can hope
>>> that Peter Craven's new ideas
>>> (http://www.findaphd.com/search/ProjectDetails.aspx?PJID=40193) pan
>>> out and give us at least a good second order microphone.
>> 
>> 
>> 
>> It'll be great to see 'native' HOA mics on the market....
>> 
>> 
>> 
>> My best,
>> Jo
>> 
>> ~~
>> Joseph Anderson
>> 
>> Artist:                                 http://joseph-anderson.org
>> Ambisonic Toolkit:      http://ambisonictoolkit.net
>> 
>> 
>> 
>> 
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> 
> 
> 
> -- 
> As of 1st October 2012, I have retired from the University, so this
> disclaimer is redundant....
> 
> 
> These are my own views and may or may not be shared by my employer
> 
> Dave Malham
> Ex-Music Research Centre
> Department of Music
> The University of York
> Heslington
> York YO10 5DD
> UK
> 
> 'Ambisonics - Component Imaging for Audio'
> _______________________________________________
> Sursound mailing list
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~~
Joseph Anderson

Artist:                                 http://joseph-anderson.org
Ambisonic Toolkit:      http://ambisonictoolkit.net




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