The more reliable guitar tuners do something like this. You clip them on the neck, and they detect vibrations in the wood rather than from sound in the air.
oddly, this is how I learned to tune my guitar. I'm pretty tone deaf, but can feel the difference between the reference string and the string I'm trying to tune through the guitar.
Not really. 12 TET (the tuning intervals used in almost all situations where you want equal ability to play in any key, from a Western music perspective) requires a slight amount of beating, even in those "perfect fourth" intervals between most adjacent guitar strings, and especially in the "major third" interval between one pair of adjacent guitar strings, but not in the "2 octave" interval between the lowest and highest guitar strings.
Some equal temperament intervals are narrower than their just-intonation (nonbeating) counterparts, for example an ET perfect fifth (2.996614:2) and just perfect fifth (3:2). But others are wider, for example an ET perfect fourth (4.00452:3) and just perfect fourth (4:3), and an ET major third (5.039684:4) and just major third (5:4).
If you tune each string sequentially (low E to high E, or vice versa) and eliminate all of the beating each step of the way, the effect adds up to the point where it's quite noticeable, meaning that your low E and high E will sound like garbage when played together because that ratio should be precisely 4:1 but now you've accidentally made it narrower than that. How much narrower?
For a guitar going from low E string to high E string, we need to stack 3 perfect fourths, a major third, and another perfect fourth -- and end up at 4x the starting frequency. If we use those non-integer ratios of the 12 TET system (intentional beating), we end up with 4.00452/3 * 4.00452/3 * 4.00452/3 * 5.039684/4 * 4.00452/3 = 4.00000. That's what we want. But if we use the integer ratios of just-intonation (no beating), we end up with 4/3 * 4/3 * 4/3 * 5/4 * 4/3 = 3.95062 and that's going to sound like complete ass. This is why just-intonation is not used for instruments like piano and guitar that are designed to play in all keys. It's used by choirs and barbarshop quartets without piano accompaniment, since they can adapt on the fly, and it's glorious.
An electronic tuner is the most practical way to avoid this problem. Alternatively, you could just get the perfect fourths nonbeating, get the double-octave nonbeating, and let the major third beat however it wants -- this works because rounding the ~4.005:3 perfect fourth to 4/3 is somewhat acceptable but rounding the ~5.04/4 major third to 5/3 is not.
Perfect fourth could be achieved via natural harmonics at 5th and 7th frets, double octave is just the 5th fret and voila you can get the standard tuning. Inapplicable for necks without a precise position of frets, good luck compensating height differences from nut and gauges with intonation tuners.
Oh yeah, I should've mentioned fretting the lower strings for a unison (1:1) to the higher adjacent open string. No beating in this unison yields equal temperament, due to frets scaled accordingly, so it avoids the problem I mentioned... but introduces likelihood of intonation issues (or simply bending the pitch) as you say.
I had been thinking about listening for beating in the 5:4 and 4:3 intervals using open strings, which does present the just temperament problem, and harmonics on open strings to make a unison unfortunately shares this problem 100%.
My issue with app-style E2E encryption is the app can still see your message in plaintext, and there's no way to verify it isn't doing anything with it.
I read an experiment someone wanted to try where they used pre-1900 content and tried to get relativity. Another version would be train an LLM on school curriculum up until calculus and see if it can invent calculus. Where we are on the curve depends on if it's remixing known things or genuinely inventing things.
From the article,
> ...LLMs have got to the point where if a problem has an easy argument that for one reason or another human mathematicians have missed (that reason sometimes, but not always, being that the problem has not received all that much attention), then there is a good chance that the LLMs will spot it. Conversely, for problems where one’s initial reaction is to be impressed that an LLM has come up with a clever argument, it often turns out on closer inspection that there are precedents for those arguments...
> building across multiple regions and AZs is a thing
If you do this for resiliency, be prepared to pay the capacity tax (2 regions means 2x capacity, 3 regions means 1.5x), have the machines already running in a multi-region setup (don't expect to be able to spin up instances or even get capacity during an outage), and ready to deal with the added complexity of multi-region hosting.
There’s all kinds of fun pitfalls with multi-AZ. Like you can create RDS subnets across multiple AZs but then you can’t remove an AZ. Which really sucks when your core database covers all 5 us-east-1 AZs and randomly can’t failover because you picked an instance type that use1-az4 can’t host.
> My guess is that ads online target people with more impulsive buying.
There's a dial between ad relevancy and ad yield. Gambling ads are probably high-yield because of high LTV, so advertisers will spend more, even if impressions don't generate many clicks.
I'm from that area and grew up around those sort of farms. A neighbor actually had peaches. Fruit canning had been in decline for a long time leading up to this (consumers prefer fresh), and most of the producers have long since moved away from canning peaches.
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