Added app

.gitattributes

@@ -25,3 +25,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.zip filter=lfs diff=lfs merge=lfs -text
 *.zstandard filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
+czech-large-vocab.scorer filter=lfs diff=lfs merge=lfs -text

.gitignore

@@ -0,0 +1 @@
+/venv

app.py

@@ -0,0 +1,48 @@
+from stt import Model
+import gradio as gr
+import numpy as np
+
+model = 'stt-comodoro-czech-2022-05-31.tflite'
+scorer = 'czech-large-vocab.scorer'
+beam_width = 512
+lm_alpha = 0.94
+lm_beta = 2.52
+
+model = Model(model)
+model.enableExternalScorer(scorer)
+model.setScorerAlphaBeta(lm_alpha, lm_beta)
+model.setBeamWidth(beam_width)
+
+def reformat_freq(sr, y):
+    if sr not in (
+        48000,
+        16000,
+    ):  # Deepspeech only supports 16k, (we convert 48k -> 16k)
+        raise ValueError("Unsupported rate", sr)
+    if sr == 48000:
+        y = (
+            ((y / max(np.max(y), 1)) * 32767)
+            .reshape((-1, 3))
+            .mean(axis=1)
+            .astype("int16")
+        )
+        sr = 16000
+    return sr, y
+
+def transcribe(speech):
+    _, y = reformat_freq(*speech)
+    stream = model.createStream()
+    stream.feedAudioContent(y)
+    text = stream.intermediateDecode()
+    return text
+
+with gr.Blocks() as blocks:
+  audio = gr.Audio(source="microphone", type="numpy", streaming=False,
+      label='Pokud je to třeba, povolte mikrofon pro tuto stránku, \
+ klikněte na Record from microphone, po dokončení nahrávání na Stop recording a poté na Rozpoznat')
+  btn = gr.Button('Rozpoznat')
+  output = gr.Textbox(show_label=False)
+  btn.click(fn=transcribe, inputs=[audio], 
+      outputs=[output])
+
+blocks.launch(enable_queue=True, debug=True) 

czech-large-vocab.scorer

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+version https://git-lfs.github.com/spec/v1
+oid sha256:6b1656ffc605f8df51e6bb5593ec9faee3610c7a7b9933d5d84f48bb307568d4
+size 484210096

packages.txt

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+ffmpeg

requirements.txt

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+stt
+torch
+transformers

stt-comodoro-czech-2022-05-31.tflite

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fc51b2380d0362cc5613935aacf848ad84805e9644ba3e733cef7962ba8336e4
+size 47360928