【转载 | 电磁录音频谱 | 日立 IGBT-VVVF】英国铁路Class 802列车

https://www.youtube.com/watch?v=RzqSGtCTgWM

原视频发布于2024年4月28日
原作者：Youtube@ItsYa165 (https://www.youtube.com/@ItsYa165)
** 经原作者授权许可后发布 **
本视频仅在B站发布，严禁转载到国内其他平台！

原视频标题：Hitachi IGBT VVVF | Class 802 Traction Sound | PWM Inverter - Class 802 Inductor Recording
--- 以下为原视频简介 ---
Class 800/801/802/ traction inverters - the sound of the Hitachi AT300s running on diesel mode! You can hear both the generator converter and the traction converter together, using the same Hitachi IGBT PWM method for driving the motor as with converting power. I believe the synchronous pulse modes are: 9P, W3P, 1P. Take listen and take a look.

Noise reduction post-processing:
OC noise floor 44100Hz sample
48dB reduction
Maximum sensitivity with no smoothing

Equipment used:
1x 1000mH telephone pickup coil to single pole TRS 3.5mm
Sony ICD-PX470

Class 800 Traction Motor Sound
Class 801 Traction Motor Sound
Class 802 Traction Motor Sound