Echo Filter
=====================================
IHaveADream.wav
Martin Luther King Jr.
Lincoln Memorial in Washington D.C.
August 28, 1963.
https://archive.org/details/MLKDream
public domain

PearlHarbor.wav
Franklin D. Roosevelt
Roosevelt Pearl Harbor speech
New York. 1941
https://www.loc.gov/item/afccal000099/

TheHillWeClimb.wav
Amanda Gorman
Reciting her inauguration poem "The Hill We Climb"
Washington D.C.
January 20, 2022
https://www.youtube.com/watch?v=LZ055ilIiN4

RowYourBoat.wav 
Generated from MIDI files at
http://www-personal.umich.edu/~msmiller/rounds.html

Crow.wav
http://nifty.stanford.edu/2010/zingaro-song-generator/assignment.html


Sound Wave Visualizer
=====================================
IHaveADream.wav
Martin Luther King Jr.
Lincoln Memorial in Washington D.C.
August 28, 1963.
https://archive.org/details/MLKDream
public domain

PianoSonata11.wav
https://musopen.org/music/18-piano-sonata-no-11-k-331/
Piano Sonata no. 11, K. 331 - III. Alla Turca
Composed by Wolfgang Amadeus Mozart
Performed by Eduardo
public domain

HelloWorld.wav
Kevin Wayne
public domain

KeyboardTyping.wav
mixkit-keyboard-typing-1386.wav
https://mixkit.co/free-sound-effects/
Mixkit Sounds Effects Free License
https://mixkit.co/license/#sfxFree

RetroGameAlarm.wav
mixkit-retro-game-emergency-alarm-1000.wav
https://mixkit.co/free-sound-effects/
Mixkit Sounds Effects Free License
https://mixkit.co/license/#sfxFree

World Map
===================
Downloaded svg files from

https://mapsvg.com/maps
CC BY 4.0 DEED
