1) bot_startup.ogg is a snippet from https://freesound.org/people/wtermini/sounds/546450/
2) All vroomba sounds were created by Constellado with Beepbox.co (yes. really.)
This has the instruments all set up for it if you want to use it to add more vroomba noises:
https://www.beepbox.co/#9n21sbk0l00e00t43a7g00j07r1i0o43T0v0u00f10u2qw02d03w5h0E0T1v0u01f0qw03d03A0F0BfQ0000PffffE0T3v0u03f0qw00d03SUUM0A060n0U07M0E0b4hp140000
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