diff --git a/app/src/main/cpp/PlaybackEngine.cpp b/app/src/main/cpp/PlaybackEngine.cpp
index a097da6..5d3b84c 100644
--- a/app/src/main/cpp/PlaybackEngine.cpp
+++ b/app/src/main/cpp/PlaybackEngine.cpp
@@ -374,7 +374,7 @@ void PlaybackEngine::musicFeedThread() {
             LOGW("out of bytes, finished playing");
             err = MPG123_DONE;
         }*/
-        musicFile->remaining_samples -= done / sizeof(int16_t);
+        musicFile->remaining_samples -= done / num_ch_in / sizeof(int16_t);
         //musicFile->offset += done;
         musicFile->offset = lseek(musicFile->android_fd, 0, SEEK_CUR);
         if(musicFile->offset >= musicFile->num_bytes) {