app.py

import spaces
import os
import gc
from functools import partial
import gradio as gr
import torch
from speechbrain.inference.interfaces import Pretrained, foreign_class
from transformers import T5Tokenizer, T5ForConditionalGeneration
import librosa
import whisper_timestamped as whisper
from transformers import AutoModelForSpeechSeq2Seq, AutoProcessor, pipeline, Wav2Vec2ForCTC, AutoProcessor

device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
torch.backends.cuda.matmul.allow_tf32 = True

def clean_up_memory():
    gc.collect()
    torch.cuda.empty_cache()

@spaces.GPU(duration=15)
def recap_sentence(string):
    inputs = recap_tokenizer(["restore capitalization and punctuation: " + string], return_tensors="pt", padding=True).to(device)
    outputs = recap_model.generate(**inputs, max_length=768, num_beams=5, early_stopping=True).squeeze(0)
    recap_result = recap_tokenizer.decode(outputs, skip_special_tokens=True)
    return recap_result

@spaces.GPU(duration=30)
def return_prediction_w2v2(mic=None, file=None, device=device):
    if mic is not None:
        waveform, sr = librosa.load(mic, sr=16000)
        waveform = waveform[:60*sr]
        w2v2_result = w2v2_classifier.classify_file_w2v2(waveform, device)
    elif file is not None:
        waveform, sr = librosa.load(file, sr=16000)
        waveform = waveform[:60*sr]
        w2v2_result = w2v2_classifier.classify_file_w2v2(waveform, device)
    else:
        return "You must either provide a mic recording or a file"

    recap_result = recap_sentence(w2v2_result[0])

    for i, letter in enumerate(recap_result):
        if i > 1 and recap_result[i-2] in [".", "!", "?"] and letter.islower():
            recap_result = recap_result[:i] + letter.upper() + recap_result[i+1:]

    clean_up_memory()
    return recap_result

@spaces.GPU(duration=30)
def return_prediction_whisper_mic(mic=None, device=device):
    if mic is not None:
        waveform, sr = librosa.load(mic, sr=16000)
        waveform = waveform[:30*sr]
        whisper_result = whisper_classifier.classify_file_whisper_mkd(waveform, device)
    else:
        return "You must provide a mic recording"
    
    recap_result = recap_sentence(whisper_result[0])

    for i, letter in enumerate(recap_result):
        if i > 1 and recap_result[i-2] in [".", "!", "?"] and letter.islower():
            recap_result = recap_result[:i] + letter.upper() + recap_result[i+1:]

    clean_up_memory()
    return recap_result

@spaces.GPU(duration=60)
def return_prediction_whisper_file(file=None, device=device):
    whisper_result = []
    if file is not None:
        waveform, sr = librosa.load(file, sr=16000)
        waveform = waveform[:3600*sr]
        whisper_result = whisper_classifier.classify_file_whisper_mkd_streaming(waveform, device)
    else:
        yield "You must provide a file"
    
    recap_result = ""
    prev_segment = ""
    prev_segment_len = 0

    segment_counter = 0
    for segment in whisper_result:
        segment_counter += 1
        if prev_segment == "":
            recap_segment = recap_sentence(segment[0])
        else:
            prev_segment_len = len(prev_segment.split())
            recap_segment = recap_sentence(prev_segment + " " + segment[0])
        
        recap_segment = recap_segment.split()
        recap_segment = recap_segment[prev_segment_len:]
        recap_segment = " ".join(recap_segment)
        prev_segment = segment[0]
        recap_result += recap_segment + " "

        for i, letter in enumerate(recap_result):
            if i > 1 and recap_result[i-2] in [".", "!", "?"] and letter.islower():
                recap_result = recap_result[:i] + letter.upper() + recap_result[i+1:]

        yield recap_result

return_prediction_whisper_mic_with_device = partial(return_prediction_whisper_mic, device=device)
return_prediction_whisper_file_with_device = partial(return_prediction_whisper_file, device=device)
return_prediction_w2v2_with_device = partial(return_prediction_w2v2, device=device)

# Load the ASR models
whisper_classifier = foreign_class(source="Macedonian-ASR/whisper-large-v3-macedonian-asr", pymodule_file="custom_interface_app.py", classname="ASR")
whisper_classifier = whisper_classifier.to(device)
whisper_classifier.eval()

w2v2_classifier = foreign_class(source="Macedonian-ASR/wav2vec2-aed-macedonian-asr", pymodule_file="custom_interface_app.py", classname="ASR")
w2v2_classifier = w2v2_classifier.to(device)
w2v2_classifier.eval()

# Load the T5 tokenizer and model
recap_model_name = "Macedonian-ASR/mt5-restore-capitalization-macedonian"
recap_tokenizer = T5Tokenizer.from_pretrained(recap_model_name)
recap_model = T5ForConditionalGeneration.from_pretrained(recap_model_name, torch_dtype=torch.float16)
recap_model.to(device)
recap_model.eval()

# Interface definitions
mic_transcribe_whisper = gr.Interface(
    fn=return_prediction_whisper_mic_with_device,
    inputs=gr.Audio(sources="microphone", type="filepath"),
    outputs=gr.Textbox(),
    allow_flagging="never",
    live=False,
)

file_transcribe_whisper = gr.Interface(
    fn=return_prediction_whisper_file_with_device,
    inputs=gr.Audio(sources="upload", type="filepath"),
    outputs=gr.Textbox(),
    allow_flagging="never",
    live=True
)

mic_transcribe_w2v2 = gr.Interface(
    fn=return_prediction_w2v2_with_device,
    inputs=gr.Audio(sources="microphone", type="filepath"),
    outputs=gr.Textbox(),
    allow_flagging="never",
    live=False,
)

file_transcribe_w2v2 = gr.Interface(
    fn=return_prediction_w2v2_with_device,
    inputs=gr.Audio(sources="upload", type="filepath"),
    outputs=gr.Textbox(),
    allow_flagging="never",
    live=False
)

project_description = '''
<img src="https://i.ibb.co/SKDfwn9/bookie.png"
     alt="Bookie logo"
     style="float: right; width: 130px; height: 110px; margin-left: 10px;" />
     
## Автори:
1. **Дејан Порјазовски**
2. **Илина Јакимовска**
3. **Ордан Чукалиев**
4. **Никола Стиков**
Оваа колаборација е дел од активностите на **Центарот за напредни интердисциплинарни истражувања ([ЦеНИИс](https://ukim.edu.mk/en/centri/centar-za-napredni-interdisciplinarni-istrazhuvanja-ceniis))** при УКИМ.
## Во тренирањето на овој модел се употребени податоци од:
1. Дигитален архив за етнолошки и антрополошки ресурси ([ДАЕАР](https://iea.pmf.ukim.edu.mk/tabs/view/61f236ed7d95176b747c20566ddbda1a)) при Институтот за етнологија и антропологија, Природно-математички факултет при УКИМ.
2. Аудио верзија на меѓународното списание [„ЕтноАнтропоЗум"](https://etno.pmf.ukim.mk/index.php/eaz/issue/archive) на Институтот за етнологија и антропологија, Природно-математички факултет при УКИМ.
3. Аудио подкастот [„Обични луѓе"](https://obicniluge.mk/episodes/) на Илина Јакимовска
4. Научните видеа од серијалот [„Наука за деца"](http://naukazadeca.mk), фондација [КАНТАРОТ](https://qantarot.substack.com/)
5. Македонска верзија на [Mozilla Common Voice](https://commonvoice.mozilla.org/en/datasets) (верзија 18.0)
## Како да придонесете за подобрување на македонските модели за препознавање на говор?
На  следниот [линк](https://drive.google.com/file/d/1YdZJz9o1X8AMc6J4MNPnVZjASyIXnvoZ/view?usp=sharing) ќе најдете инструкции за тоа како да донирате македонски говор преку платформата Mozilla Common Voice.
'''

# Custom CSS
css = """
.gradio-container {
    background-color: #f0f0f0;
}
.custom-markdown p, .custom-markdown li, .custom-markdown h2, .custom-markdown a {
    font-size: 15px !important;
    font-family: Arial, sans-serif !important;
}
.gradio-container {
    background-color: #f3f3f3 !important;
}
"""

transcriber_app = gr.Blocks(css=css, delete_cache=(60, 120))
    
with transcriber_app:
    state = gr.State()
    gr.Markdown(project_description, elem_classes="custom-markdown")

    gr.TabbedInterface(
        [mic_transcribe_whisper, file_transcribe_whisper, mic_transcribe_w2v2, file_transcribe_w2v2],
        ["Буки-Whisper микрофон", "Буки-Whisper датотека", "Буки-Wav2vec2 микрофон", "Буки-Wav2vec2 датотека"],
    )
    state = gr.State(value=[], delete_callback=lambda v: print("STATE DELETED"))

    transcriber_app.unload(return_prediction_whisper_mic)
    transcriber_app.unload(return_prediction_whisper_file)
    transcriber_app.unload(return_prediction_w2v2)

if __name__ == "__main__":
    transcriber_app.queue()
    transcriber_app.launch(share=True)