diff --git a/bundles/org.openhab.core.voice/src/main/java/org/openhab/core/voice/internal/DialogProcessor.java b/bundles/org.openhab.core.voice/src/main/java/org/openhab/core/voice/internal/DialogProcessor.java
index 869cc665d4..00a2860a78 100644
--- a/bundles/org.openhab.core.voice/src/main/java/org/openhab/core/voice/internal/DialogProcessor.java
+++ b/bundles/org.openhab.core.voice/src/main/java/org/openhab/core/voice/internal/DialogProcessor.java
@@ -12,12 +12,9 @@
  */
 package org.openhab.core.voice.internal;
 
-import static org.openhab.core.voice.internal.VoiceManagerImpl.getBestMatch;
-
 import java.io.IOException;
 import java.util.HashSet;
 import java.util.Locale;
-import java.util.Set;
 
 import org.eclipse.jdt.annotation.NonNullByDefault;
 import org.eclipse.jdt.annotation.Nullable;
@@ -87,7 +84,9 @@ public class DialogProcessor implements KSListener, STTListener {
     private final TranslationProvider i18nProvider;
     private final Bundle bundle;
 
-    private final @Nullable AudioFormat format;
+    private final @Nullable AudioFormat ksFormat;
+    private final @Nullable AudioFormat sttFormat;
+    private final @Nullable AudioFormat ttsFormat;
 
     /**
      * If the processor is currently processing a keyword event and thus should not spot further ones.
@@ -120,14 +119,15 @@ public class DialogProcessor implements KSListener, STTListener {
         this.eventPublisher = eventPublisher;
         this.i18nProvider = i18nProvider;
         this.bundle = bundle;
-        this.format = AudioFormat.getBestMatch(source.getSupportedFormats(), sink.getSupportedFormats());
+        this.ksFormat = AudioFormat.getBestMatch(source.getSupportedFormats(), ks.getSupportedFormats());
+        this.sttFormat = AudioFormat.getBestMatch(source.getSupportedFormats(), stt.getSupportedFormats());
+        this.ttsFormat = AudioFormat.getBestMatch(sink.getSupportedFormats(), tts.getSupportedFormats());
     }
 
     public void start() {
-        AudioFormat fmt = format;
+        AudioFormat fmt = ksFormat;
         if (fmt == null) {
-            logger.warn("No compatible audio format found between source '{}' and sink '{}'", source.getId(),
-                    sink.getId());
+            logger.warn("No compatible audio format found for ks '{}' and source '{}'", ks.getId(), source.getId());
             return;
         }
         abortKS();
@@ -213,7 +213,7 @@ public class DialogProcessor implements KSListener, STTListener {
                 abortSTT();
                 closeStreamSTT();
                 isSTTServerAborting = false;
-                AudioFormat fmt = format;
+                AudioFormat fmt = sttFormat;
                 if (fmt != null) {
                     try {
                         AudioStream stream = source.getInputStream(fmt);
@@ -231,6 +231,9 @@ public class DialogProcessor implements KSListener, STTListener {
                             say(text.replace("{0}", ""));
                         }
                     }
+                } else {
+                    logger.warn("No compatible audio format found for stt '{}' and source '{}'", stt.getId(),
+                            source.getId());
                 }
             } else if (ksEvent instanceof KSErrorEvent) {
                 KSErrorEvent kse = (KSErrorEvent) ksEvent;
@@ -294,8 +297,7 @@ public class DialogProcessor implements KSListener, STTListener {
                 throw new TTSException("Unable to find a suitable voice");
             }
 
-            Set<AudioFormat> audioFormats = tts.getSupportedFormats();
-            AudioFormat audioFormat = getBestMatch(audioFormats, sink.getSupportedFormats());
+            AudioFormat audioFormat = ttsFormat;
             if (audioFormat == null) {
                 throw new TTSException("No compatible audio format found for TTS '" + tts.getId() + "' and sink '"
                         + sink.getId() + "'");
diff --git a/bundles/org.openhab.core.voice/src/main/java/org/openhab/core/voice/internal/VoiceManagerImpl.java b/bundles/org.openhab.core.voice/src/main/java/org/openhab/core/voice/internal/VoiceManagerImpl.java
index 552bd74f1c..07f96d8b90 100644
--- a/bundles/org.openhab.core.voice/src/main/java/org/openhab/core/voice/internal/VoiceManagerImpl.java
+++ b/bundles/org.openhab.core.voice/src/main/java/org/openhab/core/voice/internal/VoiceManagerImpl.java
@@ -225,19 +225,19 @@ public class VoiceManagerImpl implements VoiceManager, ConfigOptionProvider {
                 throw new TTSException(
                         "Unable to find a voice for language " + localeProvider.getLocale().getLanguage());
             }
-            Set<AudioFormat> audioFormats = tts.getSupportedFormats();
+            Set<AudioFormat> sttAudioFormats = tts.getSupportedFormats();
             AudioSink sink = audioManager.getSink(sinkId);
             if (sink == null) {
                 throw new TTSException("Unable to find the audio sink " + sinkId);
             }
 
-            AudioFormat audioFormat = getBestMatch(audioFormats, sink.getSupportedFormats());
-            if (audioFormat == null) {
+            AudioFormat sttAudioFormat = AudioFormat.getBestMatch(sink.getSupportedFormats(), sttAudioFormats);
+            if (sttAudioFormat == null) {
                 throw new TTSException("No compatible audio format found for TTS '" + tts.getId() + "' and sink '"
                         + sink.getId() + "'");
             }
 
-            AudioStream audioStream = tts.synthesize(text, voice, audioFormat);
+            AudioStream audioStream = tts.synthesize(text, voice, sttAudioFormat);
             if (!sink.getSupportedStreams().stream().anyMatch(clazz -> clazz.isInstance(audioStream))) {
                 throw new TTSException(
                         "Failed playing audio stream '" + audioStream + "' as audio sink doesn't support it");
@@ -426,22 +426,6 @@ public class VoiceManagerImpl implements VoiceManager, ConfigOptionProvider {
         return null;
     }
 
-    public static @Nullable AudioFormat getBestMatch(Set<AudioFormat> inputs, Set<AudioFormat> outputs) {
-        AudioFormat preferredFormat = getPreferredFormat(inputs);
-        for (AudioFormat output : outputs) {
-            if (output.isCompatible(preferredFormat)) {
-                return preferredFormat;
-            } else {
-                for (AudioFormat input : inputs) {
-                    if (output.isCompatible(input)) {
-                        return input;
-                    }
-                }
-            }
-        }
-        return null;
-    }
-
     @Override
     public @Nullable Voice getPreferredVoice(Set<Voice> voices) {
         // Express preferences with a Language Priority List