| "pfjw@aol.com" <peterwieck33@gmail.com>: Apr 16 09:47AM -0700 There is a class of puppy that not only is incapable of learning, but enjoys the smell of its poop, and the spreading of it about. However, if ignored, it will go somewhere else as it requires the (negative) attention in order to survive. Such puppies are also very good at finding that single vulnerable point to exploit to continue said negative attention. In your case - Snit. Put this troll into a silent hell with no feedback but for what it makes for itself, and eventually (long-term) it will shrivel up and blow away. |
| Jeff Liebermann <jeffl@cruzio.com>: Apr 16 10:04AM -0700 >I'm pretty sure if you put 450W through one of those speaker's it'd glow dull red. >NT Not a problem if you use maximum momentary peak pulse dynamic percussive music power or something like that. Need bigger numbers? Just change the test method. <https://en.wikipedia.org/wiki/Audio_power> "Thus, the ideal 100-watt audio system would need to be capable of handling brief peaks of 10,000 watts in order to avoid clipping". -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
| Ragnusen Ultred <rragnusen@ultred.com>: Apr 16 05:09PM Am Mon, 16 Apr 2018 10:14:17 -0500, schrieb Fox's Mercantile: > But he ain't housebroke yet. > Like a recalcitrant puppy, he needs his nose rubbed in his > own shit until he learns. What's very telling is that you, Snit, (aka Fox's Mercantile) speak of your masturbatory fantasies, and now you're talking as the obsequious puppy you are, following me around the net and talking about your own shit-related fantasies. Notice that you, Snit Fox's Mercantile, can only talk about masturbation and eating dog shit ... Meanwhile, you fantasize about me and follow me like a servile puppy. *And yet - you can't add a single iota of technical value to _any_ thread!* |
| Ragnusen Ultred <rragnusen@ultred.com>: Apr 16 05:30PM Am Mon, 16 Apr 2018 07:31:55 -0700 (PDT), schrieb trader_4: > car and if necessary come back and watch again. It's putting in a speaker, > not rebuilding the engine. If I wanted to do it right at the car, I'd > use my smartphone on the cell network. Well, that works but remember, it's not my car, so I'm completely unfamiliar with everything about the car. Also remember that I have a lady watching over my shoulder who was the mom of the girl who was her daughter, helping me, who owned the car ... where you know, as I know, that breaking things like those dastardly clips gets those kinds of people upset. Us? We break those clips all the time ... and we remove more parts than necessary all the time, and we remove fewer than needed all the time, and we take off parts out of order all the time, etc., where I didn't have the luxury of experimenting while working on this neighbor's car. Besides, I could have written it all down, but really, it's just speakers (as you said) and there were only about fifty or so connectors to unclip or unscrew, so, that's not all that much to remember (or write down), but why bother. I put the kid to good use by having her hold the iPad tablet, and she would read out the next step and I would do it while she paused it. That worked out perfectly - but they don't have a router (reminder for me to buy them a new router as they only use desktops or cellular). In my case, this use model was perfect:\ a. Mom watched over everything like a hawk (but she did bring refreshments!) b. Daughter held iPad and told me what step to do next (this kept her busy). c. I removed the fifty or so bolts and clips & installed the speakers. When it came time to drill into the rear panel, I sent the mom and daughter inside asking for them to make more food! (They would have screamed had they seen me drilling the holes.) |
| Ragnusen Ultred <rragnusen@ultred.com>: Apr 16 05:30PM Am Mon, 16 Apr 2018 09:50:59 -0700 (PDT), schrieb trader_4: > It's really quite amazing that with this Apple crap that people pay huge > premiums for, you can't just directly download a freaking Youtube video? > WTF? Isn't there a Youtube app for ios that allows that? WTF? You bring up a good point, trader_4, which is that what's trivial on Android is actually impossible (or at least a lot harder) on iOS, but I play with all operating systems - so I deal with them as they come to me. So yes, Android does everything iOS does, and then tons and tons and tons more, while iOS doesn't do even what Android does, and iOS does nothing that Android doesn't already do. Hence, I agree that iOS users put up with this Apple crap ... but it is what it is - and all we can do is deal with it if that's what we have in our hands. To always try to add value, on Android, here's what I suggest: https://f-droid.org/en/packages/org.schabi.newpipe/ Be warned that the Google Play knockoffs on New Pipe seem to have taken the source code and added their advertising crap to that source code and then remarketed it on Google Play - so I only recommend the F-Droid version but if you don't want to use F-Droid, the Google Play knockoffs do work and even they are better than Youtube is. If we use Android - that's the only app that is needed to download any video and then play it offline at your leisure (we were working on the car at the neighbor's house who didn't have a router so we couldn't connect to their Internet). To continue to add value, one advantage of Linux over Windows is that Linux actually works BETTER than Windows with an iOS device. You just connect the iOS device by USB and slide the files over into the "private space" of the VLC app and you're done. On Windows it's slightly more complex because iTunes or the Apple Device Drivers are needed (IMHO), and that's just not acceptable. At least when I plug the iOS device into the latest Win10, but without iTunes or Apple crapware, what shows up is not nearly as much as what shows up on Linux, and on Linux, it's two way whereas on Windows it's only one way. Another question I might ask here is why did I have to MODIFY the speaker drill holes. I realize the simple answer is "you just have to". But Jesus. It's just a 6x9 oval speaker for heaven's sake. There's nothing in a speaker which necessitates "special" drill holes. Why don't they just make speaker holes standard like a billion other things are standard (e.g., USB or pipe fittings or quick couplers, etc.)? Also, I didn't realize speakers have a +/- wire. What happens if you reverse that? Note though that it's hard to reverse them since both the connection on the speaker and the harness connector on the car had one wire with a red stripe and the speaker itself had a plus and minus sign and the terminals on the speaker were different sizes and the harness connector on the car only clipped in one direction. So they did a *lot* of things to ensure that you don't get the wires crossed. But what happens if you do cross the wires? (Just curious.) |
| "pfjw@aol.com" <peterwieck33@gmail.com>: Apr 16 10:32AM -0700 Jeff: Please do not aid and abet the troll. It is ignorant (or chooses to feign ignorance) of the most basic electronic principles in order to smear its fecal matter about. I keep speakers 'rated' at 200 watts. Sure they are. If 200 = V^2/8, then V = sr1600 = 40 volts. If I feed a continuous 40V @ 5A @ 60hz into those speakers I would expect a melted voice-coil in short order. Never mind 450 watts. Reading the literature that came with the speakers, the "ratings" are based on a normal signal being driven to 200 watts up to 20% of the time. Further defining 'normal', a signal being driven to clipping less than 5% of the time and only for brief (less than 1 second) intervals. As they should be, the manufacturer was more concerned with clipping than high-power. Note that sound reinforcement speakers (as distinct from home audio speakers) are designed for much higher continuous input. This is really basic stuff - and even the world of automotive audio (very nearly a contradiction-in-terms) IA subject thereto. Peter Wieck Melrose Park, PA |
| Ragnusen Ultred <rragnusen@ultred.com>: Apr 16 05:42PM Am Mon, 16 Apr 2018 09:25:29 -0700 (PDT), schrieb trader_4: > obvious, just ain't so. But like I said, feel free to screw around, > wander in the wilderness and eschew easily available free video resources > that make jobs easy. It's clear that you, trader_4, understand that of the fifty or so bolts and clips that had to come out, not a single one was visible, where it's not always obvious how many there are or in which order to remove the dozen or so pieces of trim and lights and grills and decks and molding and belts and cushions, etc., that had to be removed in order to just *expose* the speaker bolts in this kid's vehicle. Obviously, once the speakers were exposed, the wiring was trivial, which, even James Wilkinson Sword must note, I didn't say I had any problem with the physical part of wiring the speakers. BTW, to add value here, the *great* thing about the physical wiring was that the positive and negative was so obvious in so many ways that you couldn't possibly make a mistake. a. The harness wires were color coded with a red stripe b. The speaker wires were also color coded with a red stripe c. The speakers themselves had different sized connectors d. The harness connection itself only clipped in one way e. The speakers had a plus and minus symbol So, the wiring was really easy. I used wire nuts to connect to the harness connector so that the speakers could be swapped out more easily in the future. Routing the wires was also easy as there were pre-fashioned clips and curved troughs in the back deck, which routed the wires behind the seats to the hidden harness connectors (none of which was covered in the video but they were all easy to find since you just follow the wires). The speaker cutout even had a "well indentation" to get the wires from underneath (in the trunk) to topside (to connect to the hidden harness clip behind the back of the seats). So, as trader_4 astutely noted, the wiring wasn't ever the problem. The advantage of the video was simply to know where the fifty odd hidden connections were in the dozen odd upholstery and trim panels that had to be removed. Plus, it kept the kid busy whose car it was. |
| Peeler <sociopath's@nightmare.invalid>: Apr 16 08:50PM +0200 On Mon, 16 Apr 2018 16:27:49 +0000 (UTC), Ragnusen Ultred, another troll-feeding moron, blabbered: <FLUSH another load of idiotic troll fodder> |
| tabbypurr@gmail.com: Apr 16 11:57AM -0700 On Monday, 16 April 2018 18:04:02 UTC+1, Jeff Liebermann wrote: > "Thus, the ideal 100-watt audio system would need to be > capable of handling brief peaks of 10,000 watts in order > to avoid clipping". I've just come up with a new way to get boastier specs. Diss the power through the frame not the coil, and accept some charring. NT |
| Ragnusen Ultred <rragnusen@ultred.com>: Apr 16 08:34PM > Then they are out of phase and as one cone is moving out, > the other is moving in. How noticeable it is, idk, > but audiophiles would be horrified. Makes sense. Do you think that could damage the speakers? |
| "James Wilkinson Sword" <imvalid@somewear.com>: Apr 17 12:14AM +0100 >> but audiophiles would be horrified. > Makes sense. > Do you think that could damage the speakers? No, it doesn't. It might make the music sound odd if you're very very very very good at hearing, or you have OCD, otherwise it may just reduce the volume slightly. Unless you have the speakers positioned perfectly and are sitting in a precise position, then the delay of the speed of sound will cause more problems anyway. -- Why is bra singular and panties plural? |
| Clifford Heath <no.spam@please.net>: Apr 17 09:24AM +1000 On 17/04/18 06:34, Ragnusen Ultred wrote: >> but audiophiles would be horrified. > Makes sense. > Do you think that could damage the speakers? If two stereo speakers are out of phase, they tend to cancel out low frequencies. You get no bass. The cutoff frequency depends on how far apart the speakers are. If they're less than half a wavelength you get significant cancellation. Try this: wire two speakers this way, set your amp to mono, and place the speakers directly face-to-face. Most of the sound gets cancelled. |
| "James Wilkinson Sword" <imvalid@somewear.com>: Apr 17 01:26AM +0100 > set your amp to mono, and place the > speakers directly face-to-face. Most > of the sound gets cancelled. Am I being stupid or shouldn't ALL the sound get cancelled at ANY frequency if you're sat midway between them? Imagine you're sat in your living room and have one speaker 3 metres in front of you and 1 metre to the left, and the other 3 metres in front of you and 1 metre to the right. All sounds come out of the two speakers 180 degrees out of phase. Since the distance from the left speaker and the right speaker to your head is identical, the sounds will still be 180 degrees out of phase when they reach you. Since this doesn't happen I can only assume that either: 1) you hear the two out of phase sounds with different ears and your brain allows for this. 2) reflections off the walls mean you can always hear the sound anyway. I've often connected speakers both ways round and never been able to tell one was quieter than the other. If you were in one of those weird silent rooms (anechoic?) then you might not hear anything if you wired them up wrong. I saw a TV program once where you couldn't hear someone speaking if they faced the other way, as the sound from their mouth didn't bounce off anything. I guess the same would happen if you were floating in mid air, like er.... space, but with air. Anyway, it doesn't matter, you get precisely the same sound whichever way you wire them up, I guess something just bounces. -- "Whoever said the pen is mightier than the sword obviously never encountered automatic weapons." - General MacArthur |
| "James Wilkinson Sword" <imvalid@somewear.com>: Apr 17 01:33AM +0100 > c. The speakers themselves had different sized connectors > d. The harness connection itself only clipped in one way > e. The speakers had a plus and minus symbol Or you just try one then the other and see which is loudest. -- Bad command or file name! Go stand in the corner. |
| Clifford Heath <no.spam@please.net>: Apr 17 11:11AM +1000 On 17/04/18 10:26, James Wilkinson Sword wrote: > space, but with air. > Anyway, it doesn't matter, you get precisely the same sound whichever > way you wire them up, I guess something just bounces. Most of the sound you hear in any room is actually reflections. Like 70%. So in your setup, you might get cancellation of the direct sound, but that's only part of what you hear - and the rest takes various paths that don't cancel. |
| Jeff Liebermann <jeffl@cruzio.com>: Apr 16 06:45PM -0700 >I've just come up with a new way to get boastier specs. Diss the >power through the frame not the coil, and accept some charring. >NT Dull red is about 650C (1200F). Might be a bit hard on the driver transistors, upholstery and insurance policy. I like these speakers from the bad olde daze when cars only came with one speaker cutout in the dash: <https://www.retromanufacturing.com/blogs/news/dual-voice-coil-speakers> The fun part was driving each coil 180 degrees otto phase and watching the speaker cone tear. Anything worth doing, is worth overdoing. Maybe one of these speakers would be more interesting: "10 BIGGEST/LOUDEST Speakers" <https://www.youtube.com/watch?v=8_7xa-jiLNE> (6:25) In the distant past, I worked on a compressed air battlefield propaganda very loudspeaker. Something like a modern version of one of these: <http://www.douglas-self.com/MUSEUM/COMMS/auxetophone/auxetoph.htm> Pretend I didn't mention this as it might topic shift the "discussion" beyond the tipping point of no recovery. More: <https://www.psaudio.com/article/the-mother-of-all-speakers-moas/> -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
| jurb6006@gmail.com: Apr 17 12:50AM -0700 >"Not a problem if you use maximum momentary peak pulse dynamic percussive music power or something like that. " Or PiPILS - Peak Instantaneous Power If Lightning Strikes. >""Thus, the ideal 100-watt audio system would need to be capable of handling brief peaks of 10,000 watts in order to avoid clipping". " Actually not so brief in the case of a muted trumpet. However that still would require head voltage of what ? Maybe 3,163 times the normal rails ? (I am NOT figuring that out) Even at that, if normal music was not compressed it would never fit within the dynamic range of anything. |
| jurb6006@gmail.com: Apr 17 12:55AM -0700 >"Also remember that I have a lady watching over my shoulder who was the mom of the girl who was her daughter, helping me, who owned the car ..." $ 45/hour $ 75/hour if you took it apart $ 90/hour if you advise $ 500/hour if you watch Actually you can watch as long as you don't want to. |
| jurb6006@gmail.com: Apr 17 01:00AM -0700 >"But what happens if you do cross the wires? (Just curious.) " If you get one of the pair reversed it sounds like shit because it cancels the bass out. It also can be described as the sound "going through your head". |
| Peeler <sociopath's@nightmare.invalid>: Apr 17 11:56AM +0200 On Tue, 17 Apr 2018 11:11:23 +1000, Clifford Heath, another mentally challenged troll-feeding idiot, blathered: > Most of the sound you hear in any room is actually reflections. Somewhat like you troll-feeding idiots are reflecting the Scottish wanker's idiocy? |
| "James Wilkinson Sword" <imvalid@somewear.com>: Apr 17 01:14PM +0100 > of the girl who was her daughter, helping me, who owned the car ... where > you know, as I know, that breaking things like those dastardly clips gets > those kinds of people upset. I once attempted to sell a car to someone with OCD. I'd advertised it as being in perfect condition, and it was for any normal person. But ONE of the ten clips that held the rear bumper on was broken (I hadn't even noticed, the bumper was about 2mm too low on one end). He grumbled about it for ages, then decided he'd have to replace the entire bumper because of this. Then he asked me what colour the car was. I managed to prevent myself from laughing, then said "red". He glared at me and wanted the precise tone of red so he could get the new bumper to match. I told him to go away and sold it to a normal person. > necessary all the time, and we remove fewer than needed all the time, and > we take off parts out of order all the time, etc., where I didn't have the > luxury of experimenting while working on this neighbor's car. To me a car is a machine. If it works, it works, who cares if something is hanging off? Well the police do, but you can normally avoid those fuckers. > (as you said) and there were only about fifty or so connectors to unclip or > unscrew, so, that's not all that much to remember (or write down), but why > bother. Funny, whenever I've fitted speakers (and I've put quite a few silly large stereos in my cars) I've never encountered more than about 5 clips per speaker. Just remove one plastic panel and unscrew the speaker from underneath. > read out the next step and I would do it while she paused it. > That worked out perfectly - but they don't have a router (reminder for me > to buy them a new router as they only use desktops or cellular). If they use cellular, why couldn't you play it live off Youtube using the cell network? -- If girls had apostrophes instead of periods, they'd be even more possessive and prone to contractions. |
| Tim R <timothy42b@aol.com>: Apr 16 12:11PM -0700 > Lytics can explode if no such precautions are taken during mfr > NT Years ago I accidentally put line voltage on a board instead of the +5 it wanted. They not only explode they stink up the whole room. |
| tabbypurr@gmail.com: Apr 16 01:50PM -0700 On Monday, 16 April 2018 20:11:07 UTC+1, Tim R wrote: > > Lytics can explode if no such precautions are taken during mfr > Years ago I accidentally put line voltage on a board instead of the +5 it wanted. > They not only explode they stink up the whole room. ouch NT |
| Mike Coon <gravity@mjcoon.plus.com>: Apr 16 10:10PM +0100 In article <b9df7b2c-af21-47bd-b6f3-a0256a435f84@googlegroups.com>, timothy42b@aol.com says... > > NT > Years ago I accidentally put line voltage on a board instead of the +5 it wanted. > They not only explode they stink up the whole room. The best stinky component I remember (from decades ago) was the selenium rectifier! I found that wikipedia has lots about capacitors. But not scratch-and- sniff... Mike. |
| "jfeng@my-deja.com" <jfeng@my-deja.com>: Apr 16 03:36PM -0700 On Friday, April 13, 2018 at 9:56:05 AM UTC-7, Mike Coon wrote: > As well as three bulging capacitors there are three flat-ended ones > which are also scored, so I hope those are "good". > Mike. If the unit is still open, I would also replace those capacitors. Here in Silicon Valley, they are pretty cheap, probably less than the value of your time even at hobbyist rates. |
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