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| import gradio as gr | |
| import tempfile | |
| import openai | |
| import requests | |
| import os | |
| from functools import partial | |
| def tts( | |
| input_text: str, | |
| model: str, | |
| voice: str, | |
| api_key: str, | |
| response_format: str = "mp3", | |
| speed: float = 1.0, | |
| ) -> str: | |
| """ | |
| Convert input text to speech using OpenAI's Text-to-Speech API. | |
| Parameters: | |
| input_text (str): The text to be converted to speech. | |
| model (str): The model to use for synthesis (e.g., 'tts-1', 'tts-1-hd'). | |
| voice (str): The voice to use when generating the audio. | |
| api_key (str): OpenAI API key. | |
| response_format (str): Format of the output audio. Defaults to 'mp3'. | |
| speed (float): Speed of the generated audio. Defaults to 1.0. | |
| Returns: | |
| str: File path to the generated audio file. | |
| Raises: | |
| gr.Error: If input parameters are invalid or API call fails. | |
| """ | |
| if not api_key.strip(): | |
| raise gr.Error( | |
| "API key is required. Get an API key at: https://platform.openai.com/account/api-keys" | |
| ) | |
| if not input_text.strip(): | |
| raise gr.Error("Input text cannot be empty.") | |
| if len(input_text) > 4096: | |
| raise gr.Error("Input text exceeds the maximum length of 4096 characters.") | |
| if speed < 0.25 or speed > 4.0: | |
| raise gr.Error("Speed must be between 0.25 and 4.0.") | |
| headers = { | |
| "Authorization": f"Bearer {api_key}", | |
| "Content-Type": "application/json", | |
| } | |
| data = { | |
| "model": model, | |
| "input": input_text, | |
| "voice": voice, | |
| "response_format": response_format, | |
| "speed": speed, | |
| } | |
| try: | |
| response = requests.post( | |
| "https://api.openai.com/v1/audio/speech", | |
| headers=headers, | |
| json=data, | |
| ) | |
| response.raise_for_status() | |
| except requests.exceptions.HTTPError as http_err: | |
| raise gr.Error(f"HTTP error occurred: {http_err} - {response.text}") | |
| except Exception as err: | |
| raise gr.Error(f"An error occurred: {err}") | |
| # The content will be the audio file content | |
| audio_content = response.content | |
| file_extension = response_format.lower() | |
| # PCM is raw data, so it does not have a standard file extension | |
| if file_extension == "pcm": | |
| file_extension = "raw" | |
| with tempfile.NamedTemporaryFile( | |
| suffix=f".{file_extension}", delete=False | |
| ) as temp_file: | |
| temp_file.write(audio_content) | |
| temp_file_path = temp_file.name | |
| return temp_file_path | |
| def main(): | |
| """ | |
| Main function to create and launch the Gradio interface. | |
| """ | |
| MODEL_OPTIONS = ["tts-1", "tts-1-hd"] | |
| VOICE_OPTIONS = ["alloy", "echo", "fable", "onyx", "nova", "shimmer"] | |
| RESPONSE_FORMAT_OPTIONS = ["mp3", "opus", "aac", "flac", "wav", "pcm"] | |
| # Predefine voice previews URLs | |
| VOICE_PREVIEW_URLS = { | |
| voice: f"https://cdn.openai.com/API/docs/audio/{voice}.wav" | |
| for voice in VOICE_OPTIONS | |
| } | |
| # Download audio previews to disk before initiating the interface | |
| PREVIEW_DIR = "voice_previews" | |
| os.makedirs(PREVIEW_DIR, exist_ok=True) | |
| VOICE_PREVIEW_FILES = {} | |
| for voice, url in VOICE_PREVIEW_URLS.items(): | |
| local_file_path = os.path.join(PREVIEW_DIR, f"{voice}.wav") | |
| if not os.path.exists(local_file_path): | |
| try: | |
| response = requests.get(url) | |
| response.raise_for_status() | |
| with open(local_file_path, "wb") as f: | |
| f.write(response.content) | |
| except requests.exceptions.RequestException as e: | |
| print(f"Failed to download {voice} preview: {e}") | |
| VOICE_PREVIEW_FILES[voice] = local_file_path | |
| # Set static paths for Gradio to serve | |
| gr.set_static_paths(paths=[PREVIEW_DIR]) | |
| with gr.Blocks(title="OpenAI - Text to Speech") as demo: | |
| gr.Markdown("# OpenAI Text-to-Speech Demo") | |
| with gr.Row(): | |
| with gr.Column(scale=1): | |
| with gr.Group(): | |
| preview_audio = gr.Audio( | |
| interactive=False, | |
| label="Preview Audio", | |
| value=None, | |
| visible=True, | |
| ) | |
| # Function to play the selected voice sample | |
| def play_voice_sample(voice): | |
| return gr.update(value=VOICE_PREVIEW_FILES[voice]) | |
| # Create buttons for each voice | |
| for voice in VOICE_OPTIONS: | |
| voice_button = gr.Button( | |
| value=f"{voice.capitalize()}", | |
| variant="secondary", | |
| size="sm", | |
| ) | |
| voice_button.click( | |
| fn=partial(play_voice_sample, voice=voice), | |
| outputs=preview_audio, | |
| ) | |
| with gr.Column(scale=1): | |
| api_key_input = gr.Textbox( | |
| label="OpenAI API Key", | |
| info="https://platform.openai.com/account/api-keys", | |
| type="password", | |
| placeholder="Enter your OpenAI API Key", | |
| ) | |
| model_dropdown = gr.Dropdown( | |
| choices=MODEL_OPTIONS, | |
| label="Model", | |
| value="tts-1", | |
| info="Select tts-1 for speed or tts-1-hd for quality.", | |
| ) | |
| voice_dropdown = gr.Dropdown( | |
| choices=VOICE_OPTIONS, | |
| label="Voice Options", | |
| value="echo", | |
| info="The voice to use when generating the audio.", | |
| ) | |
| response_format_dropdown = gr.Dropdown( | |
| choices=RESPONSE_FORMAT_OPTIONS, | |
| label="Response Format", | |
| value="mp3", | |
| ) | |
| speed_slider = gr.Slider( | |
| minimum=0.25, | |
| maximum=4.0, | |
| step=0.05, | |
| label="Voice Speed", | |
| value=1.0, | |
| ) | |
| with gr.Column(scale=2): | |
| input_textbox = gr.Textbox( | |
| label="Input Text", | |
| lines=10, | |
| placeholder="Type your text here...", | |
| ) | |
| # Add a character counter below the input textbox | |
| char_count_text = gr.Markdown("0 / 4096") | |
| # Function to update the character count | |
| def update_char_count(input_text): | |
| char_count = len(input_text) | |
| return f"**{char_count} / 4096**" | |
| # Update character count when the user stops typing | |
| input_textbox.change( | |
| fn=update_char_count, | |
| inputs=input_textbox, | |
| outputs=char_count_text, | |
| ) | |
| submit_button = gr.Button( | |
| "Convert Text to Speech", | |
| variant="primary", | |
| ) | |
| with gr.Column(scale=1): | |
| output_audio = gr.Audio(label="Output Audio") | |
| # Define the event handler for the submit button with error handling | |
| def on_submit( | |
| input_text, model, voice, api_key, response_format, speed | |
| ): | |
| audio_file = tts( | |
| input_text, model, voice, api_key, response_format, speed | |
| ) | |
| return audio_file | |
| # Trigger the conversion when the submit button is clicked | |
| submit_button.click( | |
| fn=on_submit, | |
| inputs=[ | |
| input_textbox, | |
| model_dropdown, | |
| voice_dropdown, | |
| api_key_input, | |
| response_format_dropdown, | |
| speed_slider, | |
| ], | |
| outputs=output_audio, | |
| ) | |
| # Launch the Gradio app with error display enabled | |
| demo.launch(show_error=True) | |
| if __name__ == "__main__": | |
| main() |