Alternate Class 345 Inverter SProfile

[NSEWonderer]

I done some digging thru some data troves of the Alstom/ Bombardier Inverters recordings a pal did with a sensor and inductor of 160MH on the 720 and 345s. What is interesting is the inverter pulse patterns (Multi stage pulsing you can hear on different trains as if they're gear changing) are quite the same as some Metro Japanese trains. So I decided to test that. A pretty perfect fit without any sound editing is the JR 210-1000 Series as below.

Surprising suits the Quiet Class 345 Aventra very well imo.

The video used to sample this is linked in the description, from there you can also see how the third phase (aka 0:11 seconds) blends very well with the GTO VVVF phase 1 and 2 of the JR 210-1000 Series

 

[D365]

I’m not sure what this post is… am I right in saying that you dubbed the sound from a Japanese electric unit with GTO inverter drive, in place of the Class 345 with IGBT inverter drive?

 

[NSEWonderer]

I’m not sure what this post is… am I right in saying that you dubbed the sound from a Japanese electric unit with GTO inverter drive, in place of the Class 345 with IGBT inverter drive?

To a degree yes but using phase data which actually allows me to then match similar looking phase profiles than randomly dub two completely different profile which is why the 345 and 210 blend quite well.

Example of inverter recording with phase profile: