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@e405123

I like trains, #モハラジオ recorder

Katılım Mart 2024
137 Takip Edilen48 Takipçiler
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e@e405123·
I am on period
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e@e405123·
@turtle7131 Well, it definitely could be done with Audacity's Noise Removal function, I think. I haven't tried it out yet though
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turtle713
turtle713@turtle7131·
@e405123 Above all, I think it will be very difficult to align the phases of the two sounds precisely lol
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e@e405123·
This could work if the noise from the T car is exactly the same pitch, happens at the same time, and is basically the same waveform as the noise from the M car, but unfortunately each noise is consistently different from another
turtle713@turtle7131

M차와 T차의 같은 위치에서 같은 마이크로 동시에 녹음을 한 다음, M차에서 녹음한 소리에서 T차에서 녹음한 소리를 빼면 과연 주행 소음이 거의 없는 순수 구동음을 얻을 수 있을지 궁금하다

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Zétt
Zétt@zettszi·
incase i need it for suzuka
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DER@tutter_official·
ボンバルディア製VVVFのCP PWMとEP PWMの特許を調べているところ 六角形ベクトル図から読み解かないといけないので地味に難しい
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e@e405123·
Audio recorder drive cannot be read by laptop!!!!! Argh!!!! I guess that's what I get for buying it off shopee
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Phil
Phil@___BMA___·
You have to admit that the GB3 cars are fantastic to watch through here. Proper cling on for your life sort of stuff through this 'chicane' Just a shame they don't race in the UK more often. Imagine these around Castle Combe!
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(￣ー￣)@gfx100gfx100·
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えいじパパ🦈
えいじパパ🦈@tse2000bc·
L6.S6編成が多度津に入場してるのでL3編成が8000系最後のGTOインバーターになるのかな
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turtle713
turtle713@turtle7131·
Seoul Metro 5000 ABB VVVF-GTO
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turtle713@turtle7131·
왜 Desmos는 이산함수를 적분하기만 하면 고장나는걸까
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turtle713
turtle713@turtle7131·
VVVF 시뮬레이터로 초퍼제어 구현하기
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e@e405123·
A neater way of displaying the waveform. The rounded corners are really nice
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DER@tutter_official·
北九州市モノレール1000形(更新車) #モハラジオ 録音 日立IGBT-VVVF 3レベルインバータですが、リゾートラインやゆいレール等とは違います ←加速　減速→
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e@e405123·
CHM-33(9) 48 M = 0.815 d/dWTHD gradient = -3.250 WTHD = 0.794% Circularity Fitness = 0.934 Peaking at 113rd and 73rd harmonics, but an isolated pair of 113rd and 109th A slightly higher WTHD than 33(9) 26, but lower d/dWTHD gradient and better circularity fitness!
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e@e405123·
CHM-33(9) 46 M = 0.815 d/dWTHD gradient = -3.482 WTHD = 0.816% Circularity Fitness = 0.929 Peaking at 103rd and 119th harmonics An in-between solution between this and the next one. Most of this solution's properties are quite mediocre
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e@e405123·
CHM-33(9) 26 M = 0.815 d/dWTHD gradient = -3.505 WTHD = 0.780% Circularity Fitness = 0.929 Peaking at 95th and 91st harmonics That's a crazy harmonic spread. The harmonics are reduced everywhere! It looks like the "26" solutions are the best at flattening the FFT
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