Re: [Sursound] Twirling 720 Microphone

Thanks for this Aaron! It does look like an easy "point and shoot" device, which can probably sound much improved with some correction applied. My best, *Dr Joseph Anderson | Research Scientist* DXARTS, Box 353414 University of Washington Seattle, WA 98195-3680

Re: [Sursound] Twirling 720 Microphone

One correction, before you invert the A-to-B gain matrix, you have to account for the -3dB gain on W in B-format FuMa. On Thu, Mar 8, 2018 at 8:35 PM, Aaron Heller wrote: > A friend bought one, so I've been doing some reverse engineering. > > In the 96kHz stereo file, the

Re: [Sursound] Twirling 720 Microphone

A friend bought one, so I've been doing some reverse engineering. In the 96kHz stereo file, the samples are interleaved L: 1313131313 R: 2424242424 litepc2aformat reformats this to a 48kHz, 4-channel file 1: 1 2: 2 3: 3 4: 4 I also measured the impulse responses of Twirling720

Re: [Sursound] Twirling 720 Microphone

It does record the vertical information. Very compact Ambisonics recording solution. On Fri, 9 Mar 2018 at 11:28 Marc Lavallée wrote: > Hi Steven, and thanks for the useful info. > > The fact that the Twirling720 presents itself as a stereo 96Khz > device and the possibility

Re: [Sursound] Twirling 720 Microphone

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Re: [Sursound] Twirling 720 Microphone

Hi Steven, and thanks for the useful info. The fact that the Twirling720 presents itself as a stereo 96Khz device and the possibility that the 4 channels are "encoded" in 2 channels is very interesting, because it could potentially be used with any computer. I still don't use mine because the

Re: [Sursound] Twirling 720 Microphone

I have one too. Been using it successfully for a while with my android phone. It does seem to present itself to other audio apps as 2 channel 96khz device. When using the apk it records either stereo, or 4 channel A and B format at 48khz. I think theres some sort if matrixing going on. I

Re: [Sursound] Twirling 720 Microphone

eonard.uk> Sent: Thursday, March 8, 2018 9:35:13 PM To: Surround Sound discussion group Subject: [Sursound] Twirling 720 Microphone Mine (pre-ordered for some small amount) arrived a couple of days ago and I’ve got it hooked up to my MacBook via a suitable USB adapter and an old Apple keyboa

[Sursound] Twirling 720 Microphone

Mine (pre-ordered for some small amount) arrived a couple of days ago and I’ve got it hooked up to my MacBook via a suitable USB adapter and an old Apple keyboard extension cable. At first, I couldn't get a sensible signal out of it, but then discovered that it needs to be connected via USB3,