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Jacob Gustavsson

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About Jacob Gustavsson

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    Hero Member

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  • Location
    Malmö, Sweden
  • About
    Hello! I am a bearded sound recordist, also interested in audio software development. If you are near Malmö, or anywhere else for that matter, don't hesitate to get in touch!
  • Interested in Sound for Picture

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  1. They work quite well for my use, they're quite easy to swap. I'm powering two Sony DWX receivers for about 6 hours and I use a separate 3s battery for my F8 recorder. I normally turn off the receivers when there's longer setups between takes and at lunch and that usually gets me through a day on one IKEA pack. Yeah, that sounds like a good alternative. I like the USB functionality as a redundancy.
  2. Phase huggers Limiter breakers Insensitive gainers
  3. How does it perform without the amp and the variable resistor? Too weak signal? What are the impedances of your splitters?
  4. I'd say it's a work of art, John! Amazing work!
  5. Marenius C-148 is similar to the MM1 https://www.marenius.se/audiodesign/micampc148.htm
  6. I thought this was a very interesting new wireless audio system, so why not share it here? Seems inexpensive at $449. Digital, remote controlled, 2.4 GHz. Very tiny transmitters with built-in mic. https://www.picogear.com Here's a review with some pros and cons:
  7. Yes, the Imax B6 charges with the cup, but no balance charging. The battery has four pins which according to some teardown images seem to be plus, temperature resistance, ID resistance and minus, so no access to the individual cells. I suspect the batteries have some sort of BMS, but not sure what kind. I tested charging 500 mA with my Imax at constant two amps for fifteen minutes and the charging voltage varied about one volt above the battery charge.
  8. Ikea made a bluetooth speaker for which you can buy a 14.4V, 37Wh battery, costing about $20. I made a 3d-printed holder for it so it can be used to power a sound bag and other equipment. These packs can be charged in the speaker (the smaller model) itself or with smart chargers like the Imax B6. I've mentioned these batteries in Allen Rowand's DIY BDS topic, and being inspired by his contributions to the location sound DIY community I wanted to add to it as well. Speaker https://m2.ikea.com/us/en/p/eneby-bluetooth-speaker-white-40401393/ Battery https://m2.ikea.com/us/en/p/eneby-battery-pack-20414264/ Thingiverse link https://www.thingiverse.com/thing:3681131
  9. Using the speaker to charge it seems like a good start, but then it would be fun to try and create a separate charger, maybe even a dual bank charger. Nice, also very good value for the Talentcell. Inspired Energy is pretty neat with monitoring battery usage and approximate remaining time, it's a good upgrade but costs a bit more of course.
  10. Looks great! What batteries would you connect? I've thought about making an adapter for Ikea's bluetooth speaker battery (Eneby), since it's quite a powerful pack for $20. It's rated at 14.4 v, 37 Wh. Making a cup for them would be an interesting project!
  11. Well, since the capsules could be re-encoded to directional cardioid/shotgun, as well as stereo or 5.1 wouldn't they be the excellent capsules for our work? And weight would be about the same as a Sennheiser 416 or Røde NTG3, as the zoom unit is about 120 grams without batteries. Two AA batteries weigh about 46 grams. There could be plenty of other challenges though, such as transmitting the ambisonics wirelessly for mixing or monitoring. I like the idea though.
  12. According to the MCR42 manual the receiver draws 1.5 watts maximum, and the R4+ outputs ca 7 watts maximum (0.6 amps @ 12 volts), so a Hirose-split cable to two MCR42 receivers should be fine I believe.
  13. I hope the iOS app gets updated too. I wrote Zoom an email a few weeks ago with some thoughts:
  14. Ah, seems like a fun idea! Didn't see the second button at first so I was a bit confused. Will you keep it in a cart setup or in a bag?
  15. What a strange coincidence! My dad showed me one today in my grandfather's old workshop. And now this thread pops up. What's going on? Strange and impressive tool! Very cool! Even has a directional switch!
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