From 4311552c36a5e8ac08e8a8a5e5372c641aac09f9 Mon Sep 17 00:00:00 2001
From: Yang Zhou <goat.zhou@qq.com>
Date: Sun, 10 Apr 2022 10:59:36 +0800
Subject: [PATCH] remove mutable in audio_cache

---
 speechx/speechx/frontend/audio/audio_cache.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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_;