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Re: Some Ambisonics questions
by Josh Parmenter
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Actually, there is now an FHMDecode1 in my lib (and it is included in
the 3.2 extras packages). There are methods for 'standard' decodes,
and a vanilla decode for one speaker. This one speaker decoder doesn't
work as cleanly as BFDecode does, since it is often better to leave
certain components out depending on the decoding situation.
I plan on making third order encoders and decoders soon... once I kick
a nasty cold and have some time :)
Any suggestions on names for the UGens?
Josh
On Mar 8, 2008, at 8:56 AM, nescivi wrote:
> Hiho,
>
> On Saturday 08 March 2008 09:36:43 Brian Willkie wrote:
>>> * In terms of the audio outcome, is the only difference between the
>>> different "orders" of Ambisonics the sound quality?
>>
>> Not so much sound quality as "localization quality." Higher order
>> Ambisonics gives a more accurate image of the location of a sound.
>> It also uses more speakers. If you decode a B-format signal to a
>> smaller set of speakers, then you simply throw out the extra
>> localization information.
>
> note that SuperCollider does not yet have a higher order decoder.
> There is an
> encoder though ;)
> Unless there is one in the AmbIEM package of course.
>
>>> * For projecting the ring down to headphones, what is needed? In the
>>> archive there's discussion of downloading the Kemar HRTFs from MIT -
>>> fine. But is there a specific UGen that would take my 8 channels and
>>> apply the HRTFs? Or otherwise how would it work?
>>
>> I think for this you want Christopher Frauenberger's ambiem package
>> http://sonenvir.at/downloads/sc3/ambiem/
>
> Alternately, you could build something with the StereoConvolution2L.
>
> sincerely,
> Marije
> _______________________________________________
> sc-users mailing list
> sc-users@...
> http://lists.create.ucsb.edu/mailman/listinfo/sc-users
******************************************
/* Joshua D. Parmenter
http://www.realizedsound.net/josh/
“Every composer – at all times and in all cases – gives his own
interpretation of how modern society is structured: whether actively
or passively, consciously or unconsciously, he makes choices in this
regard. He may be conservative or he may subject himself to continual
renewal; or he may strive for a revolutionary, historical or social
palingenesis." - Luigi Nono
*/
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the 3.2 extras packages). There are methods for 'standard' decodes,
and a vanilla decode for one speaker. This one speaker decoder doesn't
work as cleanly as BFDecode does, since it is often better to leave
certain components out depending on the decoding situation.
I plan on making third order encoders and decoders soon... once I kick
a nasty cold and have some time :)
Any suggestions on names for the UGens?
Josh
On Mar 8, 2008, at 8:56 AM, nescivi wrote:
> Hiho,
>
> On Saturday 08 March 2008 09:36:43 Brian Willkie wrote:
>>> * In terms of the audio outcome, is the only difference between the
>>> different "orders" of Ambisonics the sound quality?
>>
>> Not so much sound quality as "localization quality." Higher order
>> Ambisonics gives a more accurate image of the location of a sound.
>> It also uses more speakers. If you decode a B-format signal to a
>> smaller set of speakers, then you simply throw out the extra
>> localization information.
>
> note that SuperCollider does not yet have a higher order decoder.
> There is an
> encoder though ;)
> Unless there is one in the AmbIEM package of course.
>
>>> * For projecting the ring down to headphones, what is needed? In the
>>> archive there's discussion of downloading the Kemar HRTFs from MIT -
>>> fine. But is there a specific UGen that would take my 8 channels and
>>> apply the HRTFs? Or otherwise how would it work?
>>
>> I think for this you want Christopher Frauenberger's ambiem package
>> http://sonenvir.at/downloads/sc3/ambiem/
>
> Alternately, you could build something with the StereoConvolution2L.
>
> sincerely,
> Marije
> _______________________________________________
> sc-users mailing list
> sc-users@...
> http://lists.create.ucsb.edu/mailman/listinfo/sc-users
******************************************
/* Joshua D. Parmenter
http://www.realizedsound.net/josh/
“Every composer – at all times and in all cases – gives his own
interpretation of how modern society is structured: whether actively
or passively, consciously or unconsciously, he makes choices in this
regard. He may be conservative or he may subject himself to continual
renewal; or he may strive for a revolutionary, historical or social
palingenesis." - Luigi Nono
*/
_______________________________________________
sc-users mailing list
sc-users@...
http://lists.create.ucsb.edu/mailman/listinfo/sc-users
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