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Everything posted by borjam
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Oh,I was considering it as an option for reception (cable around the set) but I missed the "leak out" part! I was just curious, I see at some point you were! Thanks!
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I wonder, asking the Lectro guys specifically. Have you ever tried radiating cable/leaky coax? In theory it should be possible to install it around the set and, as a plus, it should reject distant interference. Note: I haven't tried it for this application but it is frequently used in tunnels.
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I found service manuals for the ECM77 microphones (and others) https://www.manualslib.com/download/2989956/Sony-Ecm-44bmp.html According to a note it includes ECM-77B in an appendix. The diagrams include cable colors, so I guess it will be possible. Note: the capsule assembly includes some electronics, a FET transistor. I would check whether the part numbers are the same for the BMP/B variants.
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I think a refresh soon is really unlikely. Sound Devices don't like quick model turnaround (which is great in my opinion) and with the new "software defined" approach they introduced with the version 1 MixPres and later adopted for the 8xx they can add plenty of features in software. I guess the MixPres were renewed unusually quickly because the SoC they chose is too small and the 32 bit furor was coming The mk2 can even run two instances of noise reduction! Even the mk1 has an Automix like plugin (MixAssist) that works pretty well. With the new SoC the mk2 MixPres have more room for new features.
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Thanks! This time I think the problem are automated AI botnets scrapping content. I know it has happened (at least with Reddit, if I remember well) because several months ago, when explanining a friend that many online reviews are AI crap I made a search. One review praised the bokeh (yes, you read right) of one microphone brand while another one stated that the Sony UWP system in particular is the best for shoting Youtube jokes. Turns out someone had asked online for a wireless microphone for that application. It could be fun to add some dodgy content or silly phrases to some posts here. It might turn out everywhere! A hilarious example:
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Apple Silicon and Ethernet (beware!)
borjam replied to borjam's topic in Macs... and the other computer
Now it seems that the Apple Thunderbolt 2 - Gigabit Ethernet adapter has been discontinued. If you are searching for one, be quick about it if you manage to find it. I got mine a year ago now. -
Tell them you charge extra because you only do Direct Metal Mastering.
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Unfortunately it’s a necessary evil. There are countless bots filling forums with all kinds of spam. As far as I know they won’t do anything with the visitors data. Their business is in selling protection about denial of service and other types of attacks.
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I'm glad the heads up was useful!
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It's a really clever design, the dipole arms are wide which increases bandwidth. Wider than a typical dipole anyway. I think Larry explained it somewhere.
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You are right about the distance: A misunderstanding on my part. When comparing a half wave dipole to a wideband bowtie antenna I assumed the half wave dipole was a builtin antenna in a receiver. My silly mistake By the way, the Lectrosonics SNA600a with its thick elements is a kind of a wideband antenna. A similar trick to the Nadenenko dipole you could see on many trawlers. That said: antennas can get detuned by stuff placed inside the near field (roughly 1 wavelength) and I wonder whether a wide band botwie can be a bit more "lenient" in that aspect. If someone can lend me one I can give it a try with the VNA (By the way I edited my previous post about amateurs using multi-narrow-band antennas instead of wide band ones). For some reason it got eaten (or I hit send before finishing it).
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Yes but better tuned. And if you can place it so that stuff is outside the near field it will work better.
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Amateur radio antennas are not usually wide band. Some are multi band as in “supporting several narrow bands” which is radically different. So you can find antennas that work on 144 - 146 MHz and 430 - 440 MHz but for, say 300 MHz they won´t be well matched. For example, at embassies and military installations you can see huge log periodic antennas (the equivalent of the shark fin) while hams use multi band Yagis. For an amateur the wide band antenna covering, say, 3 - 30 MHz is overkill when you really need to cover narrow segments at around 3.5, 5, 7, 10, 12, 14, 18, 21, 24 and 28 MHz. The bands of interest are on average 200 KHz wide (except the 28 MHz band, 1.7 MHz) .
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Just saw it on Slashdot. Press release linked. https://www.nikon.com/company/news/2024/0307_01.html
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Aaton is French, they are in Grenoble. Arri is German. That said, being both in the EU old nationalities no longer matter much.
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Who knows. Someone might just buy the brand and sell whatever stuff using it, or, if the new owners want to keep the current products they will need the engineering staff. In the late 90's I was designing multi track voice recorders (clunky stuff for call centers). We were a group of four people inside a larger company focusing on cable infrastructure and networking. The company went bankrupt and it was acquired by new owners. The new owners weren't interested on the development group I was part of and an interested party approached the new owners in order to acquire our business. Before approaching them, the interested party contacted each of us in order to know what we expected, what we wanted, ie, in order to make sure that they acquired a team and not just a bunch of source code, schematics and a brand name. They even asked our opinion on the location to set up the new premises, which new staff we needed, if any, etc. Sadly the new owners asked for too much money and the operation was aborted. So several months later I just left the company (I was the architect of the system and I had developed the most complex part of the software) and the value of the operation became zero. So, who knows. Not all "corporate" types are stupid.
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Actually, maybe it's not so bad, quite the contrary. Advanced modulation techniques can be more "gentle" as far as I know. Intermodulation is especially nasty with analog transmission that relies on continuous carriers. That said, my brother tried transmitting Dante over a 60 GHz wireless link (full duplex 1 Gbps, 0.5 ms delay, or course perfect line of sight) and it worked like a charm.
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Metallic objects within the antenna near field and they will disturb the antenna radiation pattern and/or detune it. Bear in mind that some directional antennas (Yagi-Uda for example) are created by adding additional elements which are not electrically connected to the dipole. Of course their lengths and distances are important. The simple rule of thumb is, avoid stuff at a distance of one wavelength. But be careful with the bandwidth of the active antenna amplifier. An antenna is rather poor as a band pass filter and LPDA antennas have a huge bandwidth, that is their most interesting property! As I said, an antenna is not a filter . And wide band filters are more prone to interference. A strong signal outside your frequencies of interest can make the amplifier distort or even get into blocking. Also, avoid excess gain. If you want to compensate for losses in your distribution system, say, a passive antenna distributor, adjust if possible the active antenna gain to compensate for that loss. No more. If the amplifier is not adjustable you can try an attenuator at the amplifier input.
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I was browsing the second hand inventory of a well known Spanish rental company (Ovide) and I stumbled upon a second hand HS-P82 including a RF82 control surface. Both for €890. https://www.ovide.com/segunda-mano/ Note that I am not affiliated to them, just thought someone might be interested.
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My post was rather poorly worded. I wrote on the iPad which is not exactly pleasant When I said "mixing" I meant "using files from different sources in your workflow", not mixing as in audio mixing. So well, it's obvious that if your other sources use 32 bit FP audio files it is more convenient to avoid conversions. From that point of view, even if they use a single converter it makes sense to generate floating point files. It just simplifies your workflow. Again, my poor writing I said "32 bit capable architecture" meaning dual converters with different gain or whatever. There are several approaches used by different manufacturers. I wonder about that as well. One problem with how 32 bit floating point has been marketed is, it looks like they suggest a full 32 bit dynamic range which is insane. The truth is, the dual ADC converter will add enough dynamic range so that you can really relax about gain settings. But do not expect it to record at a nuclear blast zero and not clip! A cost advantage is that you can implement the limiters in the digital domain. Indeed, seems they are not very open about their specs. And actually I guess it would be pretty easy for Zaxcom with their neverclip architecture to implement floating point files. Just they do not like the marketing and irrational expectations about it at all. I remember many years ago (1990 maybe) I attended a course on DSP programming based on the Motorola DSP56000. Being a fixed point processor you had to be careful with your calculations because, well, fixed point mathematically "clips" as well. The DSP96000 was different, based on floating point, so you could somewhat relax about that. Your data came from 24 bit converters at most of course.
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Anyway, does it have a 32 bit capable converter architecture? I mean, does it have converters capable of delivering a dynamic range greater than 24 bit? Or is it just the capability to save files in 32 bit floating point format so that you can freely mix them in post with other 32 bit sources without conversions? It says "32 bit float audio file format". So it must be just the file format (I have only seen Aaton Cantar recorders in photos, just wondering)
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The standard lyres included with the Blimp 2 are too soft. I had to replace mine in order to support a mile long NTG8 because of the weight. In my case I got "82 shore" lyres, which are the stiffest as far as I know. Due to the way lyres are fitted to the boom I had to add a couple of plastic spacers in order to place the microphone at the right position.
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I don't think so. If only, better modulation schemes should be developed. And bear in mind that broadcasters are also avid PMSE users, so they would be shooting themselves on the foot. I am pretty sure they know that their spectrum allowance can only shrink. So if broadcast usage within those bands expands, spectrum availability for PMSE will shrink. We'll see what happens in 2030 anyway. There is pressure to phase out free broadcast with the excuse that there is programming available on the Internet. I saw a report that PMSE usage is growing in some countries, curiously. So, when in doubt, lav everyone and everything in order to raise statistics and make a better case for the next review! Or go 192 KHz sampling with redundant coding!