diff --git a/.gitmodules b/.gitmodules
index e0e2722a..9f498e78 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -2,3 +2,6 @@
 	path = components/telnet/libtelnet
 	url = https://github.com/seanmiddleditch/libtelnet
 	branch = develop
+[submodule "esp-dsp"]
+	path = esp-dsp
+	url = https://github.com/philippe44/esp-dsp
diff --git a/esp-dsp b/esp-dsp
new file mode 160000
index 00000000..de39220f
--- /dev/null
+++ b/esp-dsp
@@ -0,0 +1 @@
+Subproject commit de39220fb482eeaee4db5707358bf6b97b34fe59