Short（短編）

Work before SL departure, driver's voice, etc. Freight train passing while stopped, whistle departure - progressing whistle, railroad crossing - stop(Partially recorded)

SL発車前の作業、運転手の声など、停車中に貨物列車通過あり、汽笛発車～進行中汽笛あり、踏切通過～停車（一部収録）

* There is also a paid version of "Sound in Nature" which is rich in episodes and has a long version.(Apple podcast only)

ロングバージョンのある有料版「Sound in Nature」もあります。

https://podcasts.apple.com/us/podcast/sound-in-nature/id1569798616