diff --git a/samples/cpp/speech_sample/speech_sample.hpp b/samples/cpp/speech_sample/speech_sample.hpp
index 8a15b5669f8..1ed60f25109 100644
--- a/samples/cpp/speech_sample/speech_sample.hpp
+++ b/samples/cpp/speech_sample/speech_sample.hpp
@@ -13,14 +13,14 @@
 /// @brief message for help argument
 static const char help_message[] = "Print a usage message.";
 
-/// @brief message for images argument
+/// @brief message for input data argument
 static const char input_message[] =
     "Required. Paths to input files. Example of usage: <file1.ark,file2.ark> or <file.ark> or <file.npz>.";
 
 /// @brief message for model argument
 static const char model_message[] = "Required. Path to an .xml file with a trained model (required if -rg is missing).";
 
-/// @brief message for assigning cnn calculation to device
+/// @brief message for assigning calculation to device
 static const char target_device_message[] =
     "Optional. Specify a target device to infer on. CPU, GPU, MYRIAD, GNA_AUTO, GNA_HW, "
     "GNA_HW_WITH_SW_FBACK, GNA_SW_FP32, "
@@ -36,7 +36,7 @@ static const char execution_target_message[] =
     "or the latest fully supported generation by the software. "
     "See the GNA Plugin's GNA_EXEC_TARGET config option description.";
 
-/// @brief message for execution target
+/// @brief message for compile target
 static const char compile_target_message[] = "Optional. Specify GNA compile target generation. "
                                              "May be one of GNA_TARGET_2_0, GNA_TARGET_3_0. "
                                              "By default, generation corresponds to the GNA HW available in the system "
diff --git a/src/inference/include/ie/gna/gna_config.hpp b/src/inference/include/ie/gna/gna_config.hpp
index a2bcb4016aa..ab281b07591 100644
--- a/src/inference/include/ie/gna/gna_config.hpp
+++ b/src/inference/include/ie/gna/gna_config.hpp
@@ -59,7 +59,7 @@ DECLARE_GNA_CONFIG_KEY(FIRMWARE_MODEL_IMAGE);
 DECLARE_GNA_CONFIG_KEY(FIRMWARE_MODEL_IMAGE_GENERATION);
 
 /**
- * @brief GNA proc_type setting that should be one of GNA_AUTO, GNA_HW, GNA_SW, GNA_SW_EXACT
+ * @brief GNA proc_type setting that should be one of GNA_AUTO, GNA_HW, GNA_HW_WITH_SW_FBACK, GNA_SW, GNA_SW_EXACT
  */
 DECLARE_GNA_CONFIG_KEY(DEVICE_MODE);
 
@@ -83,10 +83,8 @@ DECLARE_GNA_CONFIG_VALUE(AVX2_EXACT);
  * By default (in case of no value set) the behavior depends on GNA HW availability:
  * If GNA HW is present, use the option corresponding to this HW.
  * If HW is not present, use the option corresponding to the latest fully supported GNA HW generation.
- * A fully supported GNA HW generation means it must be supported by booth the OV GNA Plugin and the core GNA Library.
- * For the GNA Library 2.0.X.Y, the latest supported GNA HW generation corresponds to GNA_TARGET_2_0.
- * For the GNA Library 2.1.X.Y, the latest supported GNA HW generation corresponds to GNA_TARGET_3_0.
- * For the OV GNA Plugin 2021.4, the latest supported GNA HW generation corresponds to GNA_TARGET_3_0.
+ * A fully supported GNA HW generation means it must be supported by both the OV GNA Plugin and the core GNA Library.
+ * For the OV GNA Plugin 2022.1, the latest supported GNA HW generation corresponds to GNA_TARGET_3_0.
  */
 DECLARE_GNA_CONFIG_KEY(EXEC_TARGET);