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2024-12-13 08:00 by Karl Denninger
in Product Reviews , 137 references
[Comments enabled]  

I've long used Sennheiser wireless "bodypack" systems; they're widely thought of as "the shizz" in the professional audio business, and with good reason.  They just work and are beasts -- rugged, no-BS, locking microphone and output connectors, etc.

The age is showing on my kit, however, and Sennheiser just released a new setup they call the "Profile 2."  It comes with two transmitters with pseudo-omni (facing front only) capsules in them -- and each also has a locking TRS connector for an external lav or similar mic, a 2-channel receiver (outputs either mono or stereo, so you can have two separate channels or both transmitters into mono), will output not just through a standard TRS cable but also through either USB-C or Apple's Lightning connector (both connectors included) and the entire kit is tiny.  Each transmitter also has something like 30 hours worth of audio memory (16Gb!) (so you can literally use it as a detached micro-recorder!) and it can be put in a mode where it will send and back up to the memory at the same time.  The transmitters are both light and tiny -- roughly 2" x 1" x 3/4" including a spring body clip w/1/4" threaded hole on the bottom and the actual capsule.  Included are two very strong magnets on the storage bar (which might work ok on a dress shirt, but not a flannel or other thicker fabric) and the clip on the body pack is ferrous metal so that's the "mating" surface for them.  For size reference if you're familiar with the older Sennheiser body packs four of these transmitters consume basically the same space as one of the older type -- and these new ones do not have an external antenna sticking out of them either.  The transmitters have two buttons on them -- a power button (hold on/off) and a red "internal" record enable/disable (short press) and mute (long press) button.  There are three small LEDs along one corner -- power on (green), link confirmed (green = ok, red = out of range or jammed) and recording (red = yes, otherwise off.)

The receiver is also tiny and has a cold-shoe clip-on to go onto a camera or similar if you want to mount it that way, along with a standard 1/4" thread. Status (battery level on the transmitters that are powered on) and levels display on that screen there.  The receiver can be set for either mono blended output (into both channels) or stereo (each mic as a separate channel.)  Settings are accessed from the receiver; it has an OLED screen that is touch-sensitive.  Being very small the touch sensitivity can be a bit finicky -- don't expect to use it "live" without the risk of hitting the wrong thing, but for setup it works perfectly well.  There is no app integration at all (e.g. bluetooth) as with some other (much more expensive) modern systems but it outputs either over USB or a traditional mini TRS stereo plug (non-locking.)  The receiver also, in a nice touch, has a separate mini TRS headphone/monitor output with individual volume control accessed via the menus.

The entire setup runs on 2.4Ghz band so there are no licensing issues with transmission being digital.

Construction is engineered plastics with the batteries being internal and non-replaceable.  There is a battery in each module and one in the docking bar which charges the other units when they're inserted.  Exactly how many times it can charge the units assuming  the docking station is full is not claimed.  All connections on the units are the more-modern USB-C (yay) which I applaud loudly as USB-C is a lot more robust and less-likely to be damaged than the older "mini" connector.  With the units docked plugging in the base charges everything whenever the modules are inserted and the power button on the side allows it "all" to be turned on as a rather interesting if somewhat-odd "stick mic" you could use like a conventional microphone with both plugged-in transmitters active -- and yes, there's a 1/4" screw mount on the bottom of the bar so you really could stick it on a mic stand.

The whole kit fits in a supplied zippered case for transport or storage.

The best part is that the entire system is reasonably-priced.  Not cheap, but reasonable.  Then again, this isn't "Joe's Chinese Garbage" so..... yeah.

I grabbed one from B&H.

I like it.  A lot.  With one caveat that might kill it for you, and you should be aware of.

Many lavs which are otherwise compatible with this setup (basically anything that has a TRS connector and uses bias current from the pack will work with it, including previous Sennheiser lavs) are not shielded at the capsule.  The cable is shielded but the bias circuitry in the capsule is not and thus it can (and in some cases does) pick up interference from the transmitter signal (the receiver is also transmitting sync/seek and status info) so if the capsule its in the "wrong" place related to either you can hear it as a quite-audible and high-frequency, raspy, but low-level "buzz."  Both of my prior-generation Sennheiser lavs do this and after investigation I discovered its not the wire that is unshielded, its the capsule itself on the end of the wire.  If you set the body units to "record" and turn off the receiver (thus disabling the transmitter side) it goes away so if used as a "recorder" it doesn't exhibit the problem -- but when used as a transmitter it does.  Clearly something in the microphone capsule is rectifying and down-converting some element of the RF signal from the body pack into the audible range -- and that's a bitch as its in the external lav mic itself and thus is almost-certainly a function of the frequency band the units are running on and happenstance as to the harmonics generated when it is rectified by said circuitry.

Thus you will have to very carefully test the lavs you have, if you intend to use external ones, with the system while its still in the return window and figure out if you'll run into this problem or not.  From reading around the 'net this is extremely common with other 2.4Ghz systems too -- including DJI's (in other words, not just the cheap ones) which have the same issue.

I don't know if Sennheiser can correct this in a future revision of the hardware -- or if their newer lavs are better-filtered at the capsule end.  Mine are quite-old but there's utterly nothing wrong with them and they were not cheap either, nor are Sennheiser's current ones so I have no intention of buying new ones to find out.  This is definitely a dropped ball situation for Sennheiser, which was quite unexpected (really guys, you didn't think people who bought this would own some of your excellent lavs in different patterns already and work this through before releasing this thing -- or note the problem if you couldn't fix it in the user manual?)

For my particular uses of this kit I'm not sure I care since "ultimate concealability" isn't a material part of the use case for me, and thus clipping the entire transmitter unit on my lapel or in a vest pocket works fine -- and as I noted, the internal capsules are typical Sennheiser quality (in other words, excellent) and they come with snap-on windscreens as well  (which you will want for outdoor use; indoors they're not needed if at lapel or vest-pocket level as plosives are not typically a factor with a mic placed there.)

Thus my qualified recommendation -- good, but with the qualification that either you don't need external lav capability or the ones you have (or buy for external use) don't exhibit the problem with interference.

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2024-12-11 09:47 by Karl Denninger
in POTD , 100 references
 

 

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2024-12-11 07:00 by Karl Denninger
in Interviews , 124 references
[Comments enabled]  

Once again -- come and get it!

Recorded for airing on the 8th, we discuss the impact of the Chevron decision and how it has empowered "DOGE" that Trump has decided to bring to bear in the new Administration.  In addition much time is spent on where the problem lies in the Federal budget, specifically CMS and how we can't just "fix entitlements" because the issue is cost, not government allocations -- thus, if you want to address the issue (and we have to) then the underlying issue has to be addressed, and it is not "insurance" -- it is cost in the first instance and that impacts not just government but, of course, the private sector as well.

Enjoy!

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2024-12-09 07:00 by Karl Denninger
in Foreign Policy , 390 references
[Comments enabled]  

Assad has been deposed and may be dead.

His troops were overrun originally by various "rebel" factions, many of them being radical Islamists (not exactly "nice guys") and there were many reports through the day that his forces knew it was inevitable they'd lose and rather than die they abandoned both their uniforms and positions.

Then, in a rather dramatic (but so-far as I know unconfirmed) report from public flight radar data an airplane that appeared might have had Assad and his family on board left, was ascending and then looks like it may have been shot at, hit and entered an extremely rapid descent and appears to have crashed.  However, later it was reported that Assad and his family had reached Moscow and were given asylum -- so either that wasn't his aircraft or had a very good pilot (and more than a bit of luck, I suspect.)

Syria is a tough nut.  Assad was clearly not a nice guy, but he lived in a world full of very not-nice people.  There are opinions all over the board as to whether he was the keeper of peace (albeit via rather extreme means on more than one occasion) or a brutal dictator who had no compunction about gassing his own to remain in power.  One of the problems of war is that the truth is usually the first casualty, and Assad had been in power for decades, faced many attempts to depose him and they weren't doing so with harsh language.  Thus the challenge in any attempt to figure out what's what.

Don't take lightly the geography.  Syria is in a very interesting place; Turkey to the north, Iraq to the east, Jordan south and Lebanon west sort of along with a little piece of Israel.  The geopolitical aspects of this are obvious which is why Syria has been a flashpoint for a good long time, never mind the nation's direct sea access.

Netanyahu has made a public address taking credit for Assad's fall, stating that his nation's attacks on both Iran and Hezbollah were proximate causes.  Perhaps true but there's a caution here in that Syria was a fairly-significant balancing force against extraordinarily violent people and Assad wasn't voted out of office, he was basically shot out of office.

Will those who did so consider the issue resolved and lay down arms, leading to an outbreak of peace?  I'll take the under on that wager given the general nature of that part of the world over the last 100 years or so, never mind historical context going back way further than that.

This could quite-easily be the start of something much worse than what we've seen over the last 20 or so years in the Middle East. Both nature and politics abhor a vacuum and here we have one with pretty-much everyone in the vicinity being more than willing to pick up a rifle, RPG or worse at the drop of a hat.

This much I can say with certainty: We have no good reason to get involved in this in any way, and the further away from it we stay the better from an American point of view.  Let these folks figure out on their own whether they're tired of war or not.

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2024-12-06 09:20 by Karl Denninger
in Employment , 254 references
[Comments enabled]  

Uh, what jobs?

Total nonfarm payroll employment rose by 227,000 in November, and the unemployment rate changed little at 4.2 percent, the U.S. Bureau of Labor Statistics reported today. Employment trended up in health care, leisure and hospitality, government, and social assistance. Retail trade lost jobs.

Uh huh.

Health "care" continues its march of +54,000, but how many are doctors and nurses?  Ah, you already know that.  All draw a check however, so that's "good."

Leisure and hospitality hired, which is interesting too given some of the internals.  We'll get to that in a minute.

Retail trade, on the other hand, was down.

Oh, and in a new change, the last two months were revised up.

But....

On the unadjusted household numbers employment was negative 482,000.  579,000 more people decided to couch surf or otherwise not be engaged in the labor force.  The employment/population ratio (again, unadjusted) was down two ticks (which implies about a 1.2 million job net loss) which squares about right with the employment-population ratio and unadjusted jobs number and on a 12 month rolling basis, adjusted for working-age population, employment is down 2.384 million.

That latter number, ex the pandemic, is a continuation and acceleration of a negative series we've seen for the last two years, implying deep structural problems within the labor force.  Further, this comes in a month when it shouldn't -- for there to be a negative number of substance in January would not be unusual because of course temporary help for the holiday is let go then, but for it to come in November is -- since the exact opposite should be happening.  It clearly isn't.

Why does the market like this (and it does, apparently, if futures are to be believed)?  Well, it would seem that bad news being good news for the market continues, but I will warn that the internals show deterioration both in degreed professionals and also in IT, neither of which is something to cheer about.

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