From 4046f30a0a2e02889a290e220fc02a51a9fc97c3 Mon Sep 17 00:00:00 2001
From: Alexandre <44178713+alexbelgium@users.noreply.github.com>
Date: Tue, 28 May 2024 16:13:48 +0200
Subject: [PATCH] Update README.md

---
 birdnet-pi/README.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/birdnet-pi/README.md b/birdnet-pi/README.md
index 892f5ab64..65d763494 100644
--- a/birdnet-pi/README.md
+++ b/birdnet-pi/README.md
@@ -94,10 +94,20 @@ Option 2 : enable port 80, define your BirdNET-Pi URL as https. Certificate will
 
 ## Microphone comparison
 
+Recommended microphones ([full discussion here](https://github.com/mcguirepr89/BirdNET-Pi/discussions/39): 
+- Clippy EM272 (https://www.veldshop.nl/en/smart-clippy-em272z1-mono-omni-microphone.html) + ugreen aux to usb connector
+- Boya By-LM40
+
 Conclusion, using mic from Dahua is good enough, but Boya by-lm40 is more optimal for range as birndet model analysis the 150-15000Hz range
 
 ![image](https://github.com/alexbelgium/hassio-addons/assets/44178713/df992b79-7171-4f73-b0c0-55eb4256cd5b)
 
+## Denoise ([Full discussion here](https://github.com/mcguirepr89/BirdNET-Pi/discussions/597))
+
+Denoise is frowned upon by serious researchers. However it does seem to significantly increase quality of detection ! Here is how to do it in HA :
+- Using Portainer addon, go in the hassio_audio container, and modify the file /etc/pulse/system.pa to add the line `load-module module-echo-cancel`
+- Go in the Terminal addon, and type `ha audio restart`
+
 ## Common issues
 
 Not yet available