diff --git a/app/src/listener.rs b/app/src/listener.rs
index bb4190e..19f96ab 100644
--- a/app/src/listener.rs
+++ b/app/src/listener.rs
@@ -55,7 +55,10 @@ pub fn init() -> Result<(), ()> {
 
 pub fn data_callback(frame_buffer: &[i16]) -> Option<i32> {
     match WAKE_WORD_ENGINE.get().unwrap() {
-        WakeWordEngine::Porcupine => porcupine::data_callback(frame_buffer),
+        WakeWordEngine::Porcupine => {
+            // porcupine::data_callback(frame_buffer)
+            unimplemented!("f*ck picovoice");
+        },
         WakeWordEngine::Rustpotter => rustpotter::data_callback(frame_buffer),
         WakeWordEngine::Vosk => vosk::data_callback(frame_buffer),
     }
diff --git a/app/src/stt/vosk.rs b/app/src/stt/vosk.rs
index cf82fba..3b3aa25 100644
--- a/app/src/stt/vosk.rs
+++ b/app/src/stt/vosk.rs
@@ -33,41 +33,50 @@ pub fn recognize(data: &[i16], include_partial: bool) -> Option<String> {
         .accept_waveform(data);
 
     match state {
-        DecodingState::Running => {
-            if include_partial {
-                Some(
-                    RECOGNIZER
-                        .get()
-                        .unwrap()
-                        .lock()
-                        .unwrap()
-                        .partial_result()
-                        .partial
-                        .into(),
-                )
-            } else {
-                None
+        Ok(ds) => {
+            match ds {
+                DecodingState::Running => {
+                    if include_partial {
+                        Some(
+                            RECOGNIZER
+                                .get()
+                                .unwrap()
+                                .lock()
+                                .unwrap()
+                                .partial_result()
+                                .partial
+                                .into(),
+                        )
+                    } else {
+                        None
+                    }
+                }
+                DecodingState::Finalized => {
+                    // Result will always be multiple because we called set_max_alternatives
+                    Some(
+                        RECOGNIZER
+                            .get()
+                            .unwrap()
+                            .lock()
+                            .unwrap()
+                            .result()
+                            .multiple()
+                            .unwrap()
+                            .alternatives
+                            .first()
+                            .unwrap()
+                            .text
+                            .into(),
+                    )
+                }
+                DecodingState::Failed => None,
             }
+        },
+        Err(err) => {
+                error!("Vosk accept waveform error.\nError details: {}", err);
+
+                None
         }
-        DecodingState::Finalized => {
-            // Result will always be multiple because we called set_max_alternatives
-            Some(
-                RECOGNIZER
-                    .get()
-                    .unwrap()
-                    .lock()
-                    .unwrap()
-                    .result()
-                    .multiple()
-                    .unwrap()
-                    .alternatives
-                    .first()
-                    .unwrap()
-                    .text
-                    .into(),
-            )
-        }
-        DecodingState::Failed => None,
     }
 }
 
diff --git a/app/src/tray.rs b/app/src/tray.rs
index 6ef58cd..21a583c 100644
--- a/app/src/tray.rs
+++ b/app/src/tray.rs
@@ -1,6 +1,5 @@
 mod menu;
 
-use image;
 use tray_icon::{
     menu::{AboutMetadata, Menu, MenuEvent, MenuItem, PredefinedMenuItem},
     TrayIconBuilder, TrayIconEvent,