diff --git a/.travis.yml b/.travis.yml
index 3d4dc14..140646f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,6 +10,22 @@ install:
   - python ~/virtualenv/python${TRAVIS_PYTHON_VERSION}/bin/pyside_postinstall.py -install
   - pip install pyaudio
 before_script:
+# OPUS
+  - wget http://downloads.xiph.org/releases/opus/opus-1.0.3.tar.gz
+  - tar xzf opus-1.0.3.tar.gz
+  - cd opus-1.0.3
+  - ./configure
+  - make -j3
+  - sudo make install
+  - cd ..
+# VPX
+  - git clone https://chromium.googlesource.com/webm/libvpx
+  - cd libvpx
+  - ./configure --enable-shared
+  - make -j3 >/dev/null
+  - sudo make install
+  - cd ..
+  - sudo ldconfig
 # Libsodium
   - git clone git://github.com/jedisct1/libsodium.git
   - cd libsodium