diff --git a/frameworks/native/audioutils/src/audio_utils.cpp b/frameworks/native/audioutils/src/audio_utils.cpp
index 67a46f0562612d66f66e09c8e754b4dfef070626..68455b485b1ba5a6f73683a494976ade8fd03a9a 100644
--- a/frameworks/native/audioutils/src/audio_utils.cpp
+++ b/frameworks/native/audioutils/src/audio_utils.cpp
@@ -221,7 +221,7 @@ bool Util::IsRingerAudioScene(const AudioScene &audioScene)
 size_t Util::CalculatePcmSizeFromDurationCeiling(std::chrono::nanoseconds duration,
     uint32_t sampleRate, uint32_t bytesPerSample)
 {
-    size_t sampleCount = duration * sampleRate / (1s);
+    size_t sampleCount = static_cast<size_t>((duration * sampleRate) / (1s));
     if (((duration * sampleRate) % (1s)) > (0ns)) {
         sampleCount++;
     }