Teensy 4 Audio Shield (Rev D)

This shield is the all-in-one solution for adding high-quality, 16-bit, 44.1kHz (CD-quality) stereo audio to your Teensy 4.0 project. It's built around the powerful SGTL5000 stereo codec chip, which provides a full-duplex (simultaneous input and output) audio stream. Unlike simple DACs, the SGTL5000 includes a built-in headphone amplifier, allowing you to drive headphones or line-out to speakers directly from the 3.5mm audio jack. Unlock the Teensy Audio Library When paired with a Teensy 4.0, this shield unlocks the full potential of the powerful Teensy Audio Library. The Teensy's ARM Cortex-M7 core includes powerful DSP instructions that can be leveraged for real-time processing. This allows you to create complex audio projects with ease, including:

* Synthesizing complex waveforms

* Applying advanced audio effects (reverb, chorus, delay)

* Mixing multiple sound streams

* Performing real-time FFT (spectrum analysis)

* Building sophisticated instruments and audio-reactive projects

Integrated Hardware for Full-Featured Projects The audio shield comes equipped with all the essential hardware to support your creations, making it a powerful tool for a huge variety of sound-based applications.

* 3.5mm Headphone Jack: A high-quality stereo output for headphones or line-level connections.

* Micro-SD Card Slot: Included on every board for playing back audio files stored on a microSD card (not included).

* Optional Volume Pot: A space is provided to optionally solder a 25k potentiometer for physical volume control.

* Optional Flash Memory: An empty footprint allows you to add a SPI flash chip for extra onboard storage.

This shield is designed to stack perfectly with the Teensy 4.0. Please note that the two 14x1 headers required to connect the shield to the Teensy are not included. This allows you to choose your preferred stacking method (such as stacking headers or a header/socket pair). Note: Basic soldering is required to attach headers to this shield.