commit 76a1580861210e0310db23acbc29e1064ae30ead
author Kshitij Sisodia <kshitij.sisodia@arm.com> Fri Dec 24 11:05:11 2021 +0000
committer Liam Barry <liam.barry@arm.com> Fri Dec 24 14:20:36 2021 +0000
tree f947145cffd944aa3724c90745fc0e9d8e2fb2f4
parent 871fcdc755173b9f7ecb8cf9dc8dc6306329958c

MLECO-2599: Replace DSCNN with MicroNet for KWS

Added SoftMax function to Mathutils to allow MicroNet
to output probability as it does not nativelu have this layer.
Minor refactoring to accommodate Softmax Calculations
Extensive renaming and updating of documentation and resource download script.
Added SoftMax function to Mathutils to allow MicroNet
to output probability.

Change-Id: I7cbbda1024d14b85c9ac1beea7ca8fbffd0b6eb5
Signed-off-by: Liam Barry <liam.barry@arm.com>

source/use_case/kws/include/MicroNetKwsMfcc.hpp

diff --git a/source/use_case/kws/include/DsCnnMfcc.hpp b/source/use_case/kws/include/MicroNetKwsMfcc.hpp
similarity index 79%
rename from source/use_case/kws/include/DsCnnMfcc.hpp
rename to source/use_case/kws/include/MicroNetKwsMfcc.hpp
index 3f681af..b2565a3 100644
--- a/source/use_case/kws/include/DsCnnMfcc.hpp
+++ b/source/use_case/kws/include/MicroNetKwsMfcc.hpp
@@ -14,8 +14,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef KWS_DSCNN_MFCC_HPP
-#define KWS_DSCNN_MFCC_HPP
+#ifndef KWS_MICRONET_MFCC_HPP
+#define KWS_MICRONET_MFCC_HPP
 
 #include "Mfcc.hpp"
 
@@ -23,8 +23,8 @@
 namespace app {
 namespace audio {
 
-    /* Class to provide DS-CNN specific MFCC calculation requirements. */
-    class DsCnnMFCC : public MFCC {
+    /* Class to provide MicroNet specific MFCC calculation requirements. */
+    class MicroNetKwsMFCC : public MFCC {
 
     public:
         static constexpr uint32_t  ms_defaultSamplingFreq = 16000;
@@ -33,18 +33,18 @@
         static constexpr uint32_t  ms_defaultMelHiFreq    =  4000;
         static constexpr bool      ms_defaultUseHtkMethod =  true;
 
-        explicit DsCnnMFCC(const size_t numFeats, const size_t frameLen)
+        explicit MicroNetKwsMFCC(const size_t numFeats, const size_t frameLen)
             :  MFCC(MfccParams(
                         ms_defaultSamplingFreq, ms_defaultNumFbankBins,
                         ms_defaultMelLoFreq, ms_defaultMelHiFreq,
                         numFeats, frameLen, ms_defaultUseHtkMethod))
         {}
-        DsCnnMFCC()  = delete;
-        ~DsCnnMFCC() = default;
+        MicroNetKwsMFCC()  = delete;
+        ~MicroNetKwsMFCC() = default;
     };
 
 } /* namespace audio */
 } /* namespace app */
 } /* namespace arm */
 
-#endif /* KWS_DSCNN_MFCC_HPP */
\ No newline at end of file
+#endif /* KWS_MICRONET_MFCC_HPP */
\ No newline at end of file

source/use_case/kws/include/MicroNetKwsModel.hpp

diff --git a/source/use_case/kws/include/DsCnnModel.hpp b/source/use_case/kws/include/MicroNetKwsModel.hpp
similarity index 84%
rename from source/use_case/kws/include/DsCnnModel.hpp
rename to source/use_case/kws/include/MicroNetKwsModel.hpp
index a1a45cd..3259c45 100644
--- a/source/use_case/kws/include/DsCnnModel.hpp
+++ b/source/use_case/kws/include/MicroNetKwsModel.hpp
@@ -14,8 +14,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef KWS_DSCNNMODEL_HPP
-#define KWS_DSCNNMODEL_HPP
+#ifndef KWS_MICRONETMODEL_HPP
+#define KWS_MICRONETMODEL_HPP
 
 #include "Model.hpp"
 
@@ -26,11 +26,11 @@
 namespace arm {
 namespace app {
 
-    class DsCnnModel : public Model {
+    class MicroNetKwsModel : public Model {
     public:
         /* Indices for the expected model - based on input and output tensor shapes */
-        static constexpr uint32_t ms_inputRowsIdx = 2;
-        static constexpr uint32_t ms_inputColsIdx = 3;
+        static constexpr uint32_t ms_inputRowsIdx = 1;
+        static constexpr uint32_t ms_inputColsIdx = 2;
         static constexpr uint32_t ms_outputRowsIdx = 2;
         static constexpr uint32_t ms_outputColsIdx = 3;
     
@@ -47,7 +47,7 @@
 
     private:
         /* Maximum number of individual operations that can be enlisted. */
-        static constexpr int ms_maxOpCnt = 8;
+        static constexpr int ms_maxOpCnt = 7;
 
         /* A mutable op resolver instance. */
         tflite::MicroMutableOpResolver<ms_maxOpCnt> m_opResolver;
@@ -56,4 +56,4 @@
 } /* namespace app */
 } /* namespace arm */
 
-#endif /* KWS_DSCNNMODEL_HPP */
+#endif /* KWS_MICRONETMODEL_HPP */