Birdsong playback module written in Node.js intended for use as part of a playback machine using a lightweight single-board computer such as a Raspberry Pi.
This is a work in progress. API is not set in stone yet.
For the Raspberry Pi this uses the onboard audio, which out of the box needs some setup. I used a Raspberry Pi 3.
You'll need mpg321:
sudo apt-get install mpg321
If developing on MacOS, you can install mpg321 with Homebrew:
brew install mpg321
And to get audio that isn't hissy with a lot of static, you'll want to update with this new audio driver discussed here.
In /boot/config.txt add the following, then reboot:
audio_pwm_mode=2
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Copyright (c) 2017-2018 Robert Gerald Porter
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