Re: [Sursound] Octomic Impulses Up North

[Len Moskowitz]

Jonathan Kawchuk wrote:


I'm gathering some impulses in at-risk environments in western Canada 
and

I'm looking for someone to rent an Octomic from. I thought I'd see if
anyone in the community is interested or has any leads. Getting 2nd 
order

resolution is pretty important for this particular use case.



Audio Rents in LA has one for rent: 
https://audiorents.com/rental/2/activity/Field-Recording.html





Len Moskowitz (mosko...@core-sound.com)
Core Sound LLC
www.core-sound.com
Home of OctoMic and TetraMic


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Re: [Sursound] Octomic Impulses Up North

[Jonathan Kawchuk]

Thanks! Thats really good to know (and much less of a commitment).


On Sep 22, 2018, 3:19 PM -0600, Aaron Heller , wrote:
> The is known as the "substitution method" in microphone calibration
> literature.
>
> On Sat, Sep 22, 2018 at 9:07 AM Fons Adriaensen  wrote:
>
> > On Sun, Sep 16, 2018 at 12:18:54PM -0600, Jonathan Kawchuk wrote:
> >
> > > I'm also curious if anyone has experimented with running an inverse EQ
> > > calibration curve for your your sweep speakers in order to compensate for
> > > inherent peaks and valleys in the speaker’s frequency response during
> > > impulse response capture. Not sure if this is needed or if a sweep
> > > generally irons out these inconsistencies?
> >
> > The way this is usually done is to record a sweep using an omni
> > measurement mic, compute the inverse EQ from that and apply it
> > to the measured IRs, not to the speaker signal (the net effect
> > is the same).
> >
> > --
> > FA
> >
> > ___
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> > Sursound@music.vt.edu
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> > edit account or options, view archives and so on.
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Re: [Sursound] Octomic Impulses Up North

[Aaron Heller]

The is known as the "substitution method" in microphone calibration
literature.

On Sat, Sep 22, 2018 at 9:07 AM Fons Adriaensen  wrote:

> On Sun, Sep 16, 2018 at 12:18:54PM -0600, Jonathan Kawchuk wrote:
>
> > I'm also curious if anyone has experimented with running an inverse EQ
> > calibration curve for your your sweep speakers in order to compensate for
> > inherent peaks and valleys in the speaker’s frequency response during
> > impulse response capture. Not sure if this is needed or if a sweep
> > generally irons out these inconsistencies?
>
> The way this is usually done is to record a sweep using an omni
> measurement mic, compute the inverse EQ from that and apply it
> to the measured IRs, not to the speaker signal (the net effect
> is the same).
>
> --
> FA
>
> ___
> 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.
>
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Re: [Sursound] Octomic Impulses Up North

[Fons Adriaensen]

On Sun, Sep 16, 2018 at 12:18:54PM -0600, Jonathan Kawchuk wrote:
 
> I'm also curious if anyone has experimented with running an inverse EQ
> calibration curve for your your sweep speakers in order to compensate for
> inherent peaks and valleys in the speaker’s frequency response during
> impulse response capture. Not sure if this is needed or if a sweep
> generally irons out these inconsistencies?

The way this is usually done is to record a sweep using an omni
measurement mic, compute the inverse EQ from that and apply it
to the measured IRs, not to the speaker signal (the net effect
is the same).

-- 
FA

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[Sursound] Octomic Impulses Up North

[Jonathan Kawchuk]

Hi all,

I'm gathering some impulses in at-risk environments in western Canada and
I'm looking for someone to rent an Octomic from. I thought I'd see if
anyone in the community is interested or has any leads. Getting 2nd order
resolution is pretty important for this particular use case.

I'm also curious if anyone has experimented with running an inverse EQ
calibration curve for your your sweep speakers in order to compensate for
inherent peaks and valleys in the speaker’s frequency response during
impulse response capture. Not sure if this is needed or if a sweep
generally irons out these inconsistencies?

Thanks a ton!

Jon
ᐧ
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