DIY Voice Recording Chip, Custom Recording Music and What You Want to Say, 16Ω 0.25W Ambient Speaker 3 AAA Battery Power for Christmas Cards, Gift Boxes : Amazon.ca: Office Products
AES E-Library » Microphone Techniques for Ambient Sound on a Music Recording
3 Ambient Recording Techniques to Add Depth to Your Songs
Sound Design For Ambient Music
Recording ambient sound for a video at an apartment complex - Toronto Guardian