Re: [LAU] ambisonics: fons ambdec and muse.demon.co.uk ambidec

From: Jörn Nettingsmeier <nettings@email-addr-hidden-hochschule.de>
Date: Fri Jan 07 2011 - 11:56:14 EET

On 01/07/2011 09:10 AM, Giso Grimm wrote:
> Hi,
>
> On 01/07/2011 12:33 AM, fons@email-addr-hidden wrote:
> [...]
>
>>
>> Azim and elev are in radians, to convert to degrees multiply by
>> 180/pi. Note that for all layouts on the demon page, dist will
>> be 1 for all speakers. For ambdec you should use the real distance.
>>
>
> in ambdec, is the distance used for anything else then delay and gain
> compensation? Is it correct that for regular setups this does not matter?

it is also used for near-field compensation. in first order, you can get
away without, since the effect (a noticeable bass boost) only kicks in
below 50hz or so, but as soon as you move to 2nd or higher orders, you
really want NFC.

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Received on Fri Jan 7 12:15:04 2011

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