Add Python ASR examples with alsa (#646)

sherpa-onnx/csrc/session.cc

@@ -16,7 +16,7 @@
 #endif
 
 #if __ANDROID_API__ >= 27
-#include "nnapi_provider_factory.h"
+#include "nnapi_provider_factory.h"  // NOLINT
 #endif
 
 namespace sherpa_onnx {

sherpa-onnx/csrc/sherpa-onnx-alsa-offline-speaker-identification.cc

@@ -276,8 +276,8 @@ as the device_name.
       }
     }
 
-    using namespace std::chrono_literals;
-    std::this_thread::sleep_for(20ms);  // sleep for 20ms
+    using namespace std::chrono_literals;  // NOLINT
+    std::this_thread::sleep_for(20ms);     // sleep for 20ms
   }
 
   t.join();

sherpa-onnx/csrc/sherpa-onnx-alsa-offline.cc

@@ -192,8 +192,8 @@ as the device_name.
       }
     }
 
-    using namespace std::chrono_literals;
-    std::this_thread::sleep_for(20ms);  // sleep for 20ms
+    using namespace std::chrono_literals;  // NOLINT
+    std::this_thread::sleep_for(20ms);     // sleep for 20ms
   }
   t.join();
   t2.join();

sherpa-onnx/csrc/sherpa-onnx-keyword-spotter-alsa.cc

@@ -53,10 +53,6 @@ card 3: UACDemoV10 [UACDemoV1.0], device 0: USB Audio [USB Audio]
 
 and if you want to select card 3 and the device 0 on that card, please use:
 
-  hw:3,0
-
-or
-
   plughw:3,0
 
 as the device_name.