In the Soundscape Listening Room you can access a live stream and a library of sounds, both recorded using a hydrophone (underwater microphone) off central California. These recordings are part of a research and education project that employs a deep-sea cabled observatory to continuously record sounds within and outside the range of human hearing. These sounds fall into three categories: biophony (sounds of marine life), geophony (sounds of the earth), and anthrophony (sounds of human activities).
The live audio stream has been amplified so that you can hear it through your speakers, but you may still need to turn up your volume to hear the many subtle sounds. The very low pitch of some baleen whale vocalizations can only be heard with appropriate speakers (subwoofer or high-quality headphones).
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.