diff --git a/3rdparty/speex/include/speex/speex_jitter.h b/3rdparty/speex/include/speex/speex_jitter.h
new file mode 100644
index 0000000..bf17e0a
--- /dev/null
+++ b/3rdparty/speex/include/speex/speex_jitter.h
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 7188
diff --git a/3rdparty/speex/include/speex/speex_resampler.h b/3rdparty/speex/include/speex/speex_resampler.h
new file mode 100644
index 0000000..223fb5c
--- /dev/null
+++ b/3rdparty/speex/include/speex/speex_resampler.h
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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diff --git a/3rdparty/speex/include/speex/speexdsp_config_types.h b/3rdparty/speex/include/speex/speexdsp_config_types.h
new file mode 100644
index 0000000..3da6625
--- /dev/null
+++ b/3rdparty/speex/include/speex/speexdsp_config_types.h
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 123
diff --git a/3rdparty/speex/include/speex/speexdsp_types.h b/3rdparty/speex/include/speex/speexdsp_types.h
new file mode 100644
index 0000000..a138c23
--- /dev/null
+++ b/3rdparty/speex/include/speex/speexdsp_types.h
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 3591
diff --git a/3rdparty/speex/lib/libspeex.lib b/3rdparty/speex/lib/libspeex.lib
new file mode 100644
index 0000000..8ac3173
--- /dev/null
+++ b/3rdparty/speex/lib/libspeex.lib
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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diff --git a/3rdparty/speex/lib/libspeexdsp.lib b/3rdparty/speex/lib/libspeexdsp.lib
new file mode 100644
index 0000000..9ef7f77
--- /dev/null
+++ b/3rdparty/speex/lib/libspeexdsp.lib
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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diff --git a/3rdparty/speex/libspeexdsp/arch.h b/3rdparty/speex/libspeexdsp/arch.h
new file mode 100644
index 0000000..1a636f9
--- /dev/null
+++ b/3rdparty/speex/libspeexdsp/arch.h
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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diff --git a/3rdparty/speex/libspeexdsp/jitter.c b/3rdparty/speex/libspeexdsp/jitter.c
new file mode 100644
index 0000000..4b26446
--- /dev/null
+++ b/3rdparty/speex/libspeexdsp/jitter.c
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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diff --git a/3rdparty/speex/libspeexdsp/os_support.h b/3rdparty/speex/libspeexdsp/os_support.h
new file mode 100644
index 0000000..6f9deb9
--- /dev/null
+++ b/3rdparty/speex/libspeexdsp/os_support.h
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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diff --git a/3rdparty/speex/libspeexdsp/resample.c b/3rdparty/speex/libspeexdsp/resample.c
new file mode 100644
index 0000000..69439fa
--- /dev/null
+++ b/3rdparty/speex/libspeexdsp/resample.c
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 44181
diff --git a/3rdparty/speex/libspeexdsp/resample_neon.h b/3rdparty/speex/libspeexdsp/resample_neon.h
new file mode 100644
index 0000000..c955d70
--- /dev/null
+++ b/3rdparty/speex/libspeexdsp/resample_neon.h
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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diff --git a/3rdparty/speex/libspeexdsp/resample_sse.h b/3rdparty/speex/libspeexdsp/resample_sse.h
new file mode 100644
index 0000000..13debb7
--- /dev/null
+++ b/3rdparty/speex/libspeexdsp/resample_sse.h
@@ -0,0 +1,3 @@
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diff --git a/3rdparty/speex/speex_license.txt b/3rdparty/speex/speex_license.txt
new file mode 100644
index 0000000..28002d9
--- /dev/null
+++ b/3rdparty/speex/speex_license.txt
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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diff --git a/3rdparty/speex/speexdsp_license.txt b/3rdparty/speex/speexdsp_license.txt
new file mode 100644
index 0000000..6c2c1cd
--- /dev/null
+++ b/3rdparty/speex/speexdsp_license.txt
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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diff --git a/SConstruct b/SConstruct
index 110007a..7aec170 100644
--- a/SConstruct
+++ b/SConstruct
@@ -10,9 +10,9 @@ env.Append(CPPPATH=["src/"])
 sources = Glob("src/*.cpp")
 
 # Opus (Windows x64)
-env.Append(CPPPATH=['#3rdparty/opus/include'])
-env.Append(LIBPATH=['#3rdparty/opus/lib'])
-env.Append(LIBS=['opus'])
+env.Append(CPPPATH=['#3rdparty/opus/include', '#3rdparty/speex/include'])
+env.Append(LIBPATH=['#3rdparty/opus/lib', '#3rdparty/speex/lib'])
+env.Append(LIBS=['opus', 'libspeex', 'libspeexdsp'])
 
 (extension_path,) = glob("export/addons/*/*.gdextension")
 addon_path = Path(extension_path).parent