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About ramallo

  • Rank
    Hero Member
  • Birthday 03/06/1966

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  • Location
    Madrid, Spain
  • Interests
    Sound Engineering
  • About
    I'm sound technician since 1986
  • Interested in Sound for Picture

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  1. I had good results with DPA 4062 with BLM6000 and Rycote overcovers. One in the top of the motor, another in a side of the motor and another in there air intake, also other microphone close to the exhaust and other on the bottom of the car. For the interior a stereo pair such as the 184 can do the job. Be careful with the heat inside the motor compartment and exhaust Best
  2. Take a look a Harpex plugin, the Harpex upmix the FOA (First Order Ambisonic) to third order for more spacial accuracy. https://harpex.net Some of my audios in freesound are in B format (If you want to experiment with the Harpex demo) Like any other coincident technique, is phase perfect 😁 Best
  3. I have here some ambisonic recordings, also Jecklin https://freesound.org/people/ramagochi/
  4. My Soundfields also have a heaters inside for the same reason (And is very power hungry)
  5. With humidity the dielectric constant of the air drops, and this is the reason of the noises. This is common for all external polarized condensers, but the easily of this problem occurs depends of the polarization voltage (more voltage worse for humidity) and the separation between membrane and plaque (closer worse for humidity). Only the RF polarized microphones and the electret ones are relative inmune
  6. ramallo

    DPA 2011

    Far from his brother 4011/4018, not bad, but IMMO expensive for the performance (A bit noisy). I have 4, usually use it with active cable for cars or plant mics, or in situations where I fear for the integrity of a 4018
  7. ramallo


    And the Oasis?
  8. Looks like a bad contact of the front panel
  9. The matrix is equal for all (Except the DPA4) W' = FLU+FRD+BLD+BRU X' = FLU+FRD-BLD-BRU Y' = FLU-FRD+BLD-BRU Z' = FLU-FRD-BLD+BRU This is A to B (The B is the main format for decode) The difference is the distance to the center of tetrahedron, depends of this distance you need more or less EQ for compensate the separation artifacts. This EQ is individual for every microphone brand/model (aka correction filter). Best
  10. 1) It’s important I can custom names the files before starting recording, for example the name of the ciak scene, I mean all the info useful for people which will make the post production Zaxcom Maxx 2) I need to record 5 tracks with phantom power Zaxcom Maxx only have 4 preamps, two lines and 4 AES. You need a Nomad in this case, but have a vey restricted low frequency performance (Hard wired high pass at 50Hz), probably is better the Nova 3) I need full support for ambisonic audio No one have full support for A format, some have support only for Ambeo (Zoom F8n, Sonosax SX R4+, SD Mix Pre). For B format any recorder could decoder it, not perfect (W need to set at -3dB) (L=W+Y and R=W-Y) 4) All the tracks must have a safety backup track recorded to tot. -db to prevent clipping Zaxcom Maxx with neverclip 5) Very good low noise levels, way much better than another model I already own called Zoom H6 but is not enough. The new one must be so good that I can record room tones (I really need to record good quality room tones for work also). Zaxcom Maxx 6) Full timecode support Zaxcom Maxx 7) I need to send an audio monitor wireless to the script clerk Zaxcom Maxx with radio option and a URX100 (Best Sound). Zaxcom Nomad or Nova with ERX3 Low battery consume or offering good solutions for it Zaxcom Maxx I'm using for ambisonic recording a Zaxcom Maxx and a Sonosax SX R4 (Not plus), with Soundfields SPS200, ST250 and ST350 Best
  11. Usually in front of the trumpets and trombones is sitting a methacrylate shield, for do a protection for the musicians seating in front of this instruments. The complete paper: https://academic.oup.com/annweh/article/55/8/893/264708
  12. Is a matter about max spl and distance from the source. A big orchestra easily meet 120dB SPL (Peak) in a fortissimo in the typical position of the main pair, but over 130 (Peak) as spot microphone (Depends of the instrument/instruments) https://academic.oup.com/view-large/3169085
  13. I have a NPF mod and last 8 to 10 hours
  14. I did a Ambeo vs SPS200 comparison, and my impressions was very negative against the Ambeo, good for the price, but this was all. In my initial impressions I found the Rode much better than the Ambeo
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