{"type":"rich","version":"1.0","title":"Lecture 12- Noise and attenuation","provider_name":"Coggle","provider_url":"https://coggle.it","thumbnail_url":"https://static.coggle.it/diagram/Xgh9Sa6K4ie87mXF/thumbnail","width":1920,"height":1200,"html":"<iframe width=\"1920\" height=\"1200\" src=\"https://embed.coggle.it/diagram/5e087d49ae8ae227bcee65c5\" frameborder=\"0\" allowfullscreen></iframe>"}