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What kind of pattern or drive uses the br 193 vectron/smartron. Because at the start they move with similar to hum sound and it raises afterwards?

This long time 323 fan (who normally prefers diesel over juiceboxes) can only thank you for explaining what makes them so special

great video thanks

What train game/sim is that?

Thank you. A very interesting video! Any thoughts about coming to NYC? For example the R179 cars make a loud whistle sound at low speeds. I am curious as to why. Some have dynamic breaking that puts a current into the 3rd rail. Is that responsible for the whistle sound? I would love to know. The Long Island Rail Road, Metro North and Amtrak all have their characteristic sounds.

Possibly the BEST EVER video i watched so far🚂

Something about the Sound i can’t get enough

I designed parts of the control system for the 465 and 323’s and on the GEC prototypes. What you didn’t mention was that there were three main design issues; controlling the speed of the train, controlling regenerative braking, and the main one of not producing any frequencies or harmonics that would interfere with with the signalling system. In those respects the 323was the pioneer as it achieved a “go anywhere” rating and also it was the first to regenerate into a 50Hz overhead. These pioneer trains are all now in the Manchester area and I love to hear the traction and brake systems “ talking to each other “as they brake electrically almost to a standstill. I suspect that the slightly different systems described are most probably due to avoiding each other manufacturers patents !

The question is. why EV car don’t sound like this ?

Every sounds are very nice.

5:56 NS mat 54 and 64 sound exactly like that.

I've never heard a class 380 in person, but this sound seems annoying, similar to burglar alarm.

At 7:59 i think one of the best examples for the gear changing noise is the dutch VIRM trains

What about Newag Impuls in this vid: watch?v=RZWkGv4ZmSs

Thank you for making this. I have always wondered why trains make these noises!!

Really enjoyed this, very interesting and detailed. I imagine a lot of work went into it - thank you 😊

thanks,i really didnt know why it makes that pulsating sound in uk,i think in romania electric trains have same sound like a tram

A 60 Hz supply reverses direction 120 times per second.

The last sound clip is similar to the T-69 trams used on the Midland Metro lines in the West Midlands. I remember them having that rising pitch followed by several fast pulses before smoothing out at higher speeds. I miss them dearly as I’ll miss the now retired London Midland 323s. They were the sounds of my childhood.

Why do some Korean suck as the New York City subway make much higher pitch sounds

I thought the class 195 was diesel?

Excellent! I used ihyristors many years ago (retired physicist, reaserch nothing to do with transport - particle physics) so it is good to know where it is used, And how things have changed. Engineering is special. Thanks for the vid.

What a great video! I'm interested though, when you said there is no practical reason for trains like the Javelin to raise the PWM frequency before pattern (if I've got those bits right), why does it happen? Is it just a side effect of something electrical going on, or is it by design for another reason?

The Class 385 sounds alot like the MTA Metro North and Long Island Railroad M7 commuter trains. These trains use Mitsubishi MITRAC system. And the one before that sounds like the newer M9s. Im also curious to know what is going on with the MTA R160A subway trains that use the Alstom ONIX 800 system. That one has a unique up amd down stepping sound and it speeds up and slows down.

Thank you !! Thank you !! I have wondered for years/decades why trains sound the way that they do. Thank you for explaining it all so well.

Thank you for the great video! Does anybody have any idea what causes the Swiss ICN to make its iconic sound? Here is a great example: ruclips.net/video/muNCJS5Naho/видео.html

Considering Siemens has built some of the coolest screamers here on the Continent, like Desiro HC, Desiro ML (Belgian and Austrian, the water cooled German ones are too muffled), or DT3 for Nuremberg metro, I'd say the reason of resonating train parts is silly. Luckily we have these and not your police cars on extasy...

굉장히 교육적이네요. 도움이 많이 됬어요. 기차주행 영상으로 소리 들려주는거 좋아요 Educational, useful, good example video

In Asia we call VFD as VVVF. In 13:35, the Japan Keikyu N1000 series EMU before refurbishment is also known as Do-Re-Mi-Fa train.

8:00 Something similar i can hear on X63 CZ locomotive where when its trying to speed up it has 3 distinct sounds, 1. when its starting to go 2. then midway it has low pitched sound, and final is high pitched sound. ruclips.net/video/j01h2eid0eE/видео.html

On your basic diagrams you show a flow from negative to positive. That is electron flow not current flow.

Okay

Is this the region that 80s trains accelerate in jerks?

In Japan, VVVF-IGBT were slowly not used since in the middle of the 2010s. New technology appeared like SiC-IGBT VVVF appeared before being superseded by SiC-MOSFET VVVF in 2020. They music Silicon Carbide in Variable Frequency Drive and then replace IGBT with MOSFET (metal-oxide-semiconductor field-effect transistor). I hope you have time to explain this new technology.

Absolutely fascinating! You've answered a question I've had for most of my life, thank you very much! I'm Swiss and if you ever visit our country, you might wanna listen to the beautiful engine sounds coming from the ICN (low static hum, switches to a dirty higher sound), Zürich's Tram 2000 (the older version is a regular and very loud PWM, the slightly newer low-floor versions are similar to the ICN's sound, Zürich's S-Bahn RABe 514 with the iconic squeeky sudden pitch increase at the very start and Stadler KISS with the high-pitched static sound; and, of course, the gorgeous majestic humming of Switzerland's most iconic modern engine, the Re460

In the Netherlands the old (Holec) style choppers (found for example in the VIRM) where often called bagpipes by the public. Like this for example ruclips.net/video/k11ImsWnyyc/видео.html

To think I thought that ticking was the old train just creaking

I'm not really an electric train enthusiast so I'm glad I don't play the simulator you've been using in this video because I would've thought the game's sounds were broken, not realizing they were actually accurate.

Before you comment saying "What about this other type of train?", I only provided examples of different sounds, not just explaining that one. Every model of train is different and going over them all would make the video 10 hours long, so use the examples I mentioned to figure out the sounds, it'll be a combination of what I talked about

My ass makes some interesting noises after eating Friday night kebabs, maybe you could do a video on that

What about the Velaro (class 374)? Cheers

So I'm guessing newer models use BLDC, induction, or reluctance motors? Or do they still use DC?

Lol was gonna go to prestonpans to see them too, the weather stopped me though.

The best train video I have seen in my whole life.

1:16 Completely pedantic point here: 60Hz changes direction 120 times per second. One cycle is a complete trip forward and back, so to speak, and 60Hz = 60 cycles per second.

My guy this video was phenomenal, thanks so much for making this. Love the real life footage of all the different speeds and what not. The OBB one really cracked me up hahah

Now i understand why a R143 or any train in general sounds the way it does!

The 425 S-Bahn of DB Regio AG Mitte/S-Bahn Rhein-Neckar here in Germany also use the VFD system. Always lovely when all the trash bins on the train start vibrating when it hits a certain frequency.

I love the class 385 motor especially here 12:44 the most

Where is my clip of the 86 Zack?