ChaoticNeutralCzech
@ChaoticNeutralCzech@feddit.org
- Comment on Valve releases full Team Fortress 2 game code to encourage new, free versions 1 day ago:
Not free as in FOSS because it’s limited to non-commercial projects, but they’re Valve. Devs will probably be able to strike deals if their monetization schemes aren’t exploitative.
- Comment on [deleted] 3 days ago:
Did you set it up? You can totally make a POTS emulator with VoIP, GSM and whatnot with some cheap hardware.
- Comment on Anon wants $3 million 4 days ago:
Half of Europe: Romanians steal everything!
Otther half of Europe: Czechs steal everything! - Comment on Peer Review 6 days ago:
As opposed to Sucrose^®^, a registered trademark of The Coca-Cola Company.
- Comment on A little hobby project I'm working on using mostly stuff I found for free 1 week ago:
Itty 32bitty
- Comment on Ode to Internet - V.90 56k dialup modem handshake for orchestra 1 week ago:
It’s a MIDI conversion of an audio recording on top of orchestra footage but still cool.
- Comment on Framework (2nd Gen) Event is live on February 25th - Framework holding new product launch in 2 weeks 1 week ago:
Numeric keypad pls
- Comment on The Story of Nicholas Winton, the man who saved hundreds of children in WWII (short version) 1 week ago:
Post about a masked man with a knife in your town’s financial district. Make the police do extra work, they won’t investigate “ghosts”. Spam the wrong hotline.
- Comment on Speedometer, or Siegometer? 1 week ago:
I recognize the dashboard font… This is an early 2000s model from the VW-Konzern.
- Comment on Speedometer, or Siegometer? 1 week ago:
You can go 90 outside cities in Europe
- Comment on Humor 1 week ago:
How the Czech cultural identity was born:
- Comment on White House Faith Office 1 week ago:
100s of 1000s of dollars
This is cursed and looks like “hundreds or thousands of dollars” at a glance. Just say “100,000s of dollars” or “$200,000+”.
- Comment on To whomever invented LED bus advertisements: I despise you. 2 weeks ago:
They have an LED each in the top-right corner of the corresponding dot. The LEDs use different driving signals (much higher frequency and not just when the display changes) but are kept in sync with the slow-updating display to allow both technologies to complement each other: they do work in total darkness and faulty dots have LEDs as a fallback; the LEDs are half-brightness at night, full brightness at dusk and off in daylight.
Also, they were significantly LESS expensive than a sufficiently luminous LED display in the 90s before superbright LEDs existed.
As I said in another comment, they weren’t designed for ads but info signage, so they don’t actively catch attention, which is what you want to get a visually cleaner environment.
- Comment on To whomever invented LED bus advertisements: I despise you. 2 weeks ago:
This is in general for LED text signs. The “inventors” OP mentioned probably didn’t specify a purpose, they just wanted a more reliable alternative to mechanical or manual signage but yes, most are for ads.
- Comment on To whomever invented LED bus advertisements: I despise you. 2 weeks ago:
They do need to be that bright at daytime, and most indeed use automatic brightness by default. If only there was a technology that could use daylight instead of fighting it…
- Comment on Romance scammers are now in the fediverse 2 weeks ago:
It doesn’t take long to realize one can post in a “penpal” or similar communtity (create one if there isn’t) rather than messaging an awful number of strangers. Spamming is not okay either way, too bad few people realize it is spam without it being exposed by others.
- Comment on Turning My 3D Printer into a Tattoo Machine [Emily the Engineer] 2 weeks ago:
Bugemos 2010-01-30 (15 years ago)
Laser
“Hello, I have a bit of a problem with the printer I got from you. It’s that model that can print CD labels as well as laser tattoos. Specifically, what to do when a medium gets stuck. And yes, I know it’s all in the manual.”
Man, I should really take the time and translate all of them. They’re basically budget XKCD.
- Comment on How did a simple phone call become so problematic? 3 weeks ago:
How did voicemail (or voice message) make it above skywriting?
- Comment on I don't see the problem. It's A tree. It's not THE tree. 3 weeks ago:
Picture translators add text boxes in another language on top of recognized text. They don’t contain such artifacts and can be rendered at any resolution. These artifacts will only appear if output from a picture translator is processed further.
- Comment on Anon introduces himself 3 weeks ago:
Zoomed in before screenshotting
- Comment on I don't see the problem. It's A tree. It's not THE tree. 3 weeks ago:
It’s most likely upscaled. The pictures have the same artifacts.
- Comment on I don't see the problem. It's A tree. It's not THE tree. 3 weeks ago:
The pictures have the same kind of artifacts though. This is AI upscaled at the very least.
- Comment on Let me just tune up real quick 3 weeks ago:
For any harmonic, you first need to get a sound source of that frequency such as a tuning fork or speaker. It’s best to place the source where you expect an antinode to be. You can try to just pluck the string at that point but that will probably also produce a lots of harmonics you don’t want.
For the kth harmonic, there are k antinodes at (2i-1)/(2k) of the string length, where i≤k; i∈ℕ.
Fundamental (A1):
- ½ the string length (fret 12)
2nd harmonic (1 octave up, A2):
- ¾ the string length (fret 4.98)
- ¼ the string length
3rd harmonic (perfect fifth from A2 or approx. E3):
- ⅚ the string length (fret 3.15)
- ½ the string length (fret 12)
- ⅙ the string length
4th harmonic (2 octaves up, A3):
- ⅞ the string length (fret 2.32)
- ⅝ the string length (fret 8.14)
- ⅜ the string length
- ⅛ the string length
8th harmonic (4 octaves up, A4):
- 15/16 the string length (fret 1.12)
- 13/16 the string length (fret 3.59)
- 11/16 the string length (fret 6.49)
- 9/16 the string length (fret 9.96)
- 7/16 the string length
- 5/16 the string length
- 3/16 the string length
- 1/16 the string length
Using fractional frets is cumbersome because they are non-linear. You’re probably better off with a tape measure or ruler.
- Comment on Let me just tune up real quick 3 weeks ago:
the 12th fret is 1 octave up
Yup. 12 semitones is 1 octave so A2 on the bass guitar’s A string. The frequency ratio to A1 is 2:1.
5th is 2 octaves
What? No. That’s 5 semitones or 500 cents from A1, which is D2, close to a perfect fourth from A1 (frequency ratio 4:3 or 498 cents).
Two octaves would be 24 semitones or 24 frets (not available on most fretted instruments) for a frequency ratio of 4:1, or A3.
just past the second fret is 3 octaves
No! The 2nd fret is 2 semitones or 200 cents above A1, which is B1, close to a major second from A1 (frequency ratio 9:8 or 196 cents).
3 octaves would be 36 semitones or 3600 cents for a frequency ratio of 8:1, or A4.
- Comment on Let me just tune up real quick 3 weeks ago:
As Frozengyro@lemmy.world mentioned, you can have interesting results by using harmonics - tones that are a whole (k) multiple of the base frequency because then the string vibrates in a standing wave forming a series of k+1 nodes (including ends) and k antinodes equally spaced across its length. Such notes are:
Closest note Freq. Harmonic Relation to A A1 55 Hz base A2 110 Hz 2nd octave above A1 E3 + 2 cents 165 Hz 3rd perfect fifth from A2 A3 220 Hz 4th octave above A2 C#4 - 14 cents 275 Hz 5th major third from A3 E4 + 2 cents 330 Hz 6th perfect fifth from A3 G4 - 31 cents 385 Hz 7th far from a note on the chromatic scale A4 440 Hz 8th octave above A3 B4 + 4 cents 495 Hz 9th major second from A4 C#5 - 14 cents 550 Hz 10th major third from A4 D#5 - 49 cents 605 Hz 11th very far from a note on the chromatic scale E5 + 2 cents 660 Hz 12th perfect fifth from A4 F5 + 41 cents 715 Hz 13th very far from a note on the chromatic scale G5 - 31 cents 770 Hz 14th far from a note on the chromatic scale G#5 - 12 cents 825 Hz 15th minor second below A5 A5 880 Hz 16th octave above A4 You could continue forever but frequencies above that will have a very weak response.
Yes, you will get some resonance on non-integer multiples but way less.
- Comment on Let me just tune up real quick 3 weeks ago:
I think that would make a standing wave with a series of nodes/antinodes on the string, and how well it works would strongly depend on where the tuning fork is along the string. This has the potential to be more interesting but it’s not as easy.
- Comment on Let me just tune up real quick 3 weeks ago:
For context, bass guitar strings are tuned 3 octaves lower than that. The frequency of the A string is 55 Hz. You can’t even reach 220 Hz using the 12th fret on the highest (G) string. Tuning a bass A string to 8 times the frequency would require increasing its tension almost 3 times. The guitar body should survive such forces but the string will snap long before you reach 110 Hz.
- Comment on Random Screenshots of my Games #56 - MiSide 3 weeks ago:
Kind Mita obviously, the 4th one in the list. Short-haired Mita is a close second.
- Comment on Random Screenshots of my Games #56 - MiSide 3 weeks ago:
Cappy best girl?! We have a major disagreement.
- Comment on Random Screenshots of my Games #56 - MiSide 3 weeks ago:
It’s quite long for what it seems to be
