Add submission # 4905

#4905

Author: ArduinoBot

registry.txt

@@ -7324,3 +7324,4 @@ https://github.com/ERLtech/ERLtech-RobotControl.git|Contributed|ERLtech-RobotCon
 https://github.com/ad039/ZSSC3230_I2C_Driver.git|Contributed|ZSSC3230 I2C Driver
 https://github.com/BlairBlaidd/Newhaven_CharacterOLED_SPI.git|Contributed|Newhaven_CharacterOLED_SPI
 https://github.com/ErlTechnologies/BTRobocontrol.git|Contributed|BTRobocontrol
+https://github.com/pschatzmann/arduino-audio-tools.git|Contributed|audio-tools