Re: [Sursound] Help: what am I doing wrong?

Hi Martin Did you ever get to the source of the problem? Best Steve On 5 Jul 2017 23:11, "Martin Dupras" wrote: I've deployed a 21-speaker near spherical array a few days ago, which I think is working ok, but I'm having difficulty with playing back some first order

Re: [Sursound] Help: what am I doing wrong?

https://ambisonic.info/info/ricardo/decoder.html Good info compiled to refresh the basics for foa decoding On 7 Jul 2017 19:20, "Sampo Syreeni" wrote: > On 2017-07-06, Aaron Heller wrote: > > The decoders produced by my toolbox in FAUST (the ".dsp" files) have >> distance, level,

Re: [Sursound] Help: what am I doing wrong?

On 2017-07-06, Aaron Heller wrote: The decoders produced by my toolbox in FAUST (the ".dsp" files) have distance, level, and near-field compensation up to 5th-order (and more soon). Those can be compiled to a large number of plugin types, including VST, AU, MaxMSP, ... ...and we like it. ;)

Re: [Sursound] Help: what am I doing wrong?

Hi Aaron, yes, this is true. However, there is mcfx_gain_delay which can be used for delay and gain compensation (and sending test signals for crosscheck). The reason I have this separated is my thinking of the speaker adjustment being a separate topic/step than generating the decoder. In

Re: [Sursound] Help: what am I doing wrong?

The decoders produced by my toolbox in FAUST (the ".dsp" files) have distance, level, and near-field compensation up to 5th-order (and more soon). Those can be compiled to a large number of plugin types, including VST, AU, MaxMSP, ... https://bitbucket.org/ambidecodertoolbox/adt Aaron On

Re: [Sursound] Help: what am I doing wrong?

On 2017-07-05, Martin Dupras wrote: I've deployed a 21-speaker near spherical array a few days ago, which I think is working ok, but I'm having difficulty [...] Oh, and by the way, *please* compensate each speaker for 1) its propagation delay to the central sweet spot, and also 2) its

Re: [Sursound] Help: what am I doing wrong?

On 2017-07-05, Aaron Heller wrote: 1. You should use a first-order decoder to play first-order sources. That's not the same as playing a first-order file into the first-order inputs of a third-order decoder. What Aaron said. The optimum decoders at different orders aren't comparable to each

Re: [Sursound] Help: what am I doing wrong?

Or: Ambisonic spherical convention is left-oriented. The +ve X axis showing into the 0 degree direction for both, azimuth and elevation. The azimuth increases counterclockwise towards the +ve Y axis. Elevation is +ve above the XY plane, and - ve for below. I got this wrong when I first

Re: [Sursound] Help: what am I doing wrong?

I remember a thread discussing decoding and listening tests from a number of years back. For foa and dual band decoding the best results was with not too many speakers in the array. My memory of the result and my interpretation of the discussion is that, 6 speakers in the horizontal ring and 4

Re: [Sursound] Help: what am I doing wrong?

Forgot the URL... http://www.ai.sri.com/~heller/ambisonics/index.html#test-files On Wed, Jul 5, 2017 at 6:15 PM, Aaron Heller wrote: > I have some first-order test files that you can try. They're FuMa > order/normalization. There's "eight directions" and some pink noise

Re: [Sursound] Help: what am I doing wrong?

Hi Martin, A few things... 1. You should use a first-order decoder to play first-order sources. That's not the same as playing a first-order file into the first-order inputs of a third-order decoder. 2. 1st-order periphonic (3D) ambisonics on a full 3D loudspeaker array gets the energy correct,

Re: [Sursound] Help: what am I doing wrong?

Check what convention the ADT uses for speaker co-ordinates. It may be that you have some of your + or - the wrong way round, or assigned to the incorrect axis. For Ambisonics convention, X is front and back, Y is left and right, Z is up and down. It is a 90 degree rotation from graphics

Re: [Sursound] Help: what am I doing wrong?

I've used the VVTetraVST plugin too, with FuMa->Ambix conversion, using the actual calibration files for the mic. The Ambeo seems to give slightly better results, but I'm willing to have more goes with VVTetraVST is you think it's significant. The way I have the routing in Reaper is that the

Re: [Sursound] Help: what am I doing wrong?

Ok. Just to rule out, only use the ambeo plugin for the ambeo. If its the Tetramic then use its own b-format conversion. Does the routing of Reaper, match that of the ADT, and that of the actual speaker connections. Are all speakers connected in phase? Do your speaker co-ordinates follow

Re: [Sursound] Help: what am I doing wrong?

Oops just reread sorry! You are already converting from FuMa to Ambix. Could it just be that it's 1st order? I wouldn't class within 45 degrees good for 3rd order though... Steve On 5 Jul 2017 23:11, "Martin Dupras" wrote: > I've deployed a 21-speaker near spherical

Re: [Sursound] Help: what am I doing wrong?

They're converted to Ambix. The A-format recordings are in a 4-channel track which has the Sennheiser Ambeo plug-in which converts from A-Format to Ambix B-format. (It's capable of FuMa and Ambix; I have it on the latter.) I've also verified that the capsules order is correct. The Ambeo plugin

Re: [Sursound] Help: what am I doing wrong?

When you are converting from A to B-format are you going to FuMa or Ambix convention? Generally most 1st order content is FuMa, so it will need to be converted to Ambix before your decode. Steve On 5 Jul 2017 23:11, "Martin Dupras" wrote: > I've deployed a 21-speaker

[Sursound] Help: what am I doing wrong?

I've deployed a 21-speaker near spherical array a few days ago, which I think is working ok, but I'm having difficulty with playing back some first order A-format recordings on it. They sound really very diffuse and not very localised at all. I figured that some of you good people on here might