chore: optimize latency and serial stability

Author: iChizer0

components/acoustics-porting/CMakeLists.txt

@@ -8,7 +8,7 @@ set(CMAKE_CXX_EXTENSIONS OFF)
 
 set(ACOUSTICS_SDK_VERSION_MAJOR 1)
 set(ACOUSTICS_SDK_VERSION_MINOR 9)
-set(ACOUSTICS_SDK_VERSION_PATCH 11)
+set(ACOUSTICS_SDK_VERSION_PATCH 22)
 
 set(ACOUSTICS_PORTING_INCLUDES_DIR
     ${CMAKE_CURRENT_LIST_DIR}/porting

components/acoustics-porting/porting/transport/uart_console.hpp

@@ -160,7 +160,7 @@ class TransportUARTConsole final: public hal::Transport
 
     inline int flush() noexcept override
     {
-        return fsync(fileno(stdout));
+        return usb_serial_jtag_wait_tx_done(portMAX_DELAY);
     }
 
 protected:
@@ -199,7 +199,7 @@ class TransportUARTConsole final: public hal::Transport
 
 private:
     usb_serial_jtag_driver_config_t _config = {
-        .tx_buffer_size = 8192,
+        .tx_buffer_size = 32 * 1024,
         .rx_buffer_size = 4096,
     };
 

components/acoustics/api/v1/task_sc.hpp

@@ -52,10 +52,10 @@ namespace shared {
     inline std::chrono::steady_clock::time_point buffer_base_ts = std::chrono::steady_clock::now();
 
     inline constexpr const size_t sample_chunk_ms = 100;
-    inline constexpr const size_t invoke_pull_ms = 20;
+    inline constexpr const size_t invoke_pull_ms = 10;
 
     inline constexpr const float overlap_ratio_min = 0.f;
-    inline constexpr const float overlap_ratio_max = 0.6f;
+    inline constexpr const float overlap_ratio_max = 0.75f;
     inline std::atomic<float> overlap_ratio = 0.5f;
 
 } // namespace shared
@@ -324,7 +324,7 @@ struct TaskSC final
             {
                 return 0;
             }
-            return (_fs - current_available) * 1000 / _sr;
+            return (_fs - current_available) * 1000 / (_sr + 1);
         }
 
         hal::Sensor *_sensor;