diff --git a/repositories.txt b/repositories.txt
index 3f5b6739..b254e963 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -4787,6 +4787,7 @@ https://github.com/Protocentral/protocentral-ads1292r-arduino
 https://github.com/Protocentral/protocentral-ads1293-arduino
 https://github.com/Protocentral/protocentral-afe4490-arduino
 https://github.com/Protocentral/protocentral-pulse-express
+https://github.com/pschatzmann/arduino-audio-tools
 https://github.com/pseudoVella/shift7seg
 https://github.com/pstolarz/CoopThreads
 https://github.com/pstolarz/NRF_HAL