diff --git a/bin/main.cpp b/bin/main.cpp
index 7a43ef4..aa1b2ac 100644
--- a/bin/main.cpp
+++ b/bin/main.cpp
@@ -62,6 +62,4 @@ auto main(int argc, char *argv[]) -> int
     hack::log()(hack::math::max(4, 5));
     hack::log()(hack::math::max(c, b));
   }
-
-  hack::warn()("TEST_WARN");
 }
diff --git a/src/hack/audio/play.hpp b/src/hack/audio/play.hpp
index 7b264c8..201e43c 100644
--- a/src/hack/audio/play.hpp
+++ b/src/hack/audio/play.hpp
@@ -29,7 +29,7 @@ namespace hack::audio
   // }
 
   // пока только wav
-  inline void play(std::vector<double> samples, int sample_rate) 
+  inline void play(std::vector<double>& samples, int sample_rate) 
   {
     PaError err = Pa_Initialize();
     if (err != paNoError)