Re: [Sursound] Izotope RX7

[Eero Aro]

I opened a four channel wav. with WXYZ first order signals into RX7.

At first sight looks good to me. The waveforms and spectrograms of 
different audio
channels display as expected. The tracks are named by default L, R, Lsr, 
Rsr, possibly
because this is a four channel wav file. With Ambisonics you need to 
know yourself

that WXYZ are displayed as L, R, Lsr, Rsr.

You can select between "Wiew channels separately" and "Wiew sum of all 
channels".


In Preferences, Channel routing the following channels are listed:
L, C, R, Lss, Rss, Lsr, Rsr, LFE, Lts and Rts, which are the Dolby Atmos 
signals.
I assume that there are no frequency bandwidth limitations in any of the 
channels.


Monitoring outputs of course know nothing about Ambisonics. Izotope 
might easily
be interested in implementing Ambisonic track labeling and routing into 
RX if we'd give

them active feedback.

When a multichannel file is active, the level meter at the bottom of the 
main window

has a single meter bar.

The RX plugins seem to operate as expected, they affect on all audio 
channels in the
same way. The first necessary plugins for me would be EQ, Level and 
Normalization.
After that Noise Reduction. As with stereo, you can select the noise 
sample from just

one channel or from several channels (as in stereo).

The specrum analyzer displays a separate curve for each audio channel 
(as in stereo).


I don't have any third party multichannel plugins installed at the 
moment, so I cannot
say anything about them. Stereo VST plugins don't open when a 
multichannel audio

file is active.

I opened just a four channel wav. file, not any other Ambisonic file 
formats yet.


Eero
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Re: [Sursound] Izotope RX7

[Eero Aro]

Paul Hodges:

Or as they say: "including Multi-channel support up to 7.1.2 Dolby
Atmos" which looks like ten channels to me.


Doh! :-D You are right. There you see, I haven't even opened a 
multichannel file

yet in RX7 and rush to write about this...

I'll find time to check about it.

Eero
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Re: [Sursound] Izotope RX7

[Paul Hodges]

--On 06 November 2018 12:05 +0200 Eero Aro  wrote:

> RX plugins now have a maximum of seven audio channels.

Or as they say: "including Multi-channel support up to 7.1.2 Dolby
Atmos" which looks like ten channels to me.

Paul

-- 
Paul Hodges

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Re: [Sursound] Izotope RX7

[Eero Aro]

Gary Gallagher wrote:
I'm not sure if it varies the 
processing between channels in anyway.
Well, the noise reduction two channel stereo version certainly keeps all 
stereo
information intact and seems to treat stereo recordings well. I have 
never heard
complaints or comments about that. Why would the multichannel version 
work in

a different way?

Anyway, I need to try the multichannel noise reduction one of these 
days. We'll

see then.

Eero
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Re: [Sursound] Izotope RX7

[Gary Gallagher]

I noticed that. It doesn't recognize ambisonic but it will import a 4
channel file as quad. It might work, I'm not sure if it varies the
processing between channels in anyway.

Gary

On Tue, Nov 6, 2018, 21:06 Eero Aro  wrote:

> Hi All
>
> Not exactly a surround sound topic, but maybe it hasn't been mentioned
> in Sursound yet, that the latest RX7 version from Izotope has now
> multichannel
> support. RX plugins now have a maximum of seven audio channels.
>
> I really have use for multichannel noise reduction, and would have had
> already
> ages ago. The Soundfield microphone recordings that I made with
> different SFM models
> were hissy. I often tried to record quiet ambiences and that's when the
> mic's self noise
> didn't sound good at all. I did try to do noise reduction with stereo
> plugins, but you can
> never know what happens to the phase differences between the signal
> pairs and that
> does bad to the sound image.
>
> Eero
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