Conversational Speech tool completed

webrtc/modules/audio_processing/test/conversational_speech/timing.cc

Index: webrtc/modules/audio_processing/test/conversational_speech/timing.cc
diff --git a/webrtc/modules/audio_processing/test/conversational_speech/timing.cc b/webrtc/modules/audio_processing/test/conversational_speech/timing.cc
index 0aa44fa42c864aad43eaa5927297778756b1fe3c..53076f1cacdaf50780b137fb733fb47cc0724625 100644
--- a/webrtc/modules/audio_processing/test/conversational_speech/timing.cc
+++ b/webrtc/modules/audio_processing/test/conversational_speech/timing.cc
@@ -53,7 +53,7 @@ std::vector<Turn> LoadTiming(const std::string& timing_filepath) {
 void SaveTiming(const std::string& timing_filepath,
                 rtc::ArrayView<const Turn> timing) {
   std::ofstream outfile(timing_filepath);
-  // TODO(alessio): check if file open for writing.
+  RTC_CHECK(outfile.is_open());
   for (const Turn& turn : timing) {
     outfile << turn.speaker_name << " " << turn.audiotrack_file_name
         << " " << turn.offset << std::endl;