Update app.js

app.js

@@ -126,9 +126,9 @@ async function initModels() {
         const fileProgress = {};
         model = await GraniteSpeechForConditionalGeneration.from_pretrained(MODEL_ID, {
             dtype: {
-                audio_encoder: 'q4',
-                embed_tokens: 'q4',
-                decoder_model_merged: 'q4',
+                audio_encoder: 'q4f16',
+                embed_tokens: 'q4f16',
+                decoder_model_merged: 'q4f16',
             },
             device: 'webgpu',
             progress_callback: (progress) => {