I'm currently running a campaign with highly interactive players who do a lot of exploring, debating, politicizing, weaving intrigues, etc., etc. (We rarely have real fights, maybe once every 5-10 hours played) Music is TSFH, Zack Hemsey, Audiomachine, etc (I can really recommend this for your action / climax playlist!), but this is mostly epic-trailer-music, not fitting "common actions".
Especially for exploring and "everyday conversations" (in a pub or a tavern for example), I need ambient sounds. (In a murky cave: The sound of little creatures running around, water dropping from the ceiling or in a pub indifferent conversation, laughter, I think you catch the drift.)
Are there any smaller or larger sound file archives for that?
To clarify: I'm thankful for the app suggestions and will definitely look into them, but a straight-up collection of sounds would be enough :)