diff --git a/speechx/speechx/frontend/audio/audio_cache.h b/speechx/speechx/frontend/audio/audio_cache.h index 7f988fc9..adef1239 100644 --- a/speechx/speechx/frontend/audio/audio_cache.h +++ b/speechx/speechx/frontend/audio/audio_cache.h @@ -54,7 +54,7 @@ class AudioCache : public FrontendInterface { size_t size_; // samples in ring_buffer_ now size_t capacity_; // capacity of ring_buffer_ bool finished_; // reach audio end - mutable std::mutex mutex_; + std::mutex mutex_; std::condition_variable ready_feed_condition_; kaldi::int32 timeout_; // millisecond bool convert2PCM32_;