to_speech_bing.py

import os
import json
#import keyring
import pathlib
from helpers import make_output_dir_if_needed, get_filename, check_for_new_files
from csv_json import save_csv_to_json

MP3_OUTPUT_DIR = "./mp3_outputs"
JSON_INPUT_FILE = "./json_files/Lesson 14-08-2018 - Phrasebook.json"
# Copy the key from your app in your Bing account
# Then at Command Line set BING_KEY=your key
BING_SUBSCRIPTION_KEY = os.environ['BING_KEY']

def synthesize_speech_one_item(input_string, input_language, voice, output_name, output_dir):
    from bingtts import Translator
    #translator = Translator(BING_SUBSCRIPTION_KEY)
    bing_key = BING_SUBSCRIPTION_KEY
    # bing_key = keyring.get_password("bing_api", "obi")
    if bing_key == None:
        print("Please set BING_SUBSCRIPTION_KEY")
        return
    translator = Translator(bing_key)

    output = translator.speak(input_string, input_language, voice, "audio-16khz-64kbitrate-mono-mp3 ")

    output_filename = output_name.strip().replace(" ", "_")
    output_filename = '{}/{}_{}.mp3'.format(output_dir, output_filename, input_language)

    with open(output_filename, "wb") as f:
        f.write(output)

    print('Audio content written to file "{}"'.format(output_filename))

def synthesize_speech_from_json(file, base_output_dir=MP3_OUTPUT_DIR):
    """Synthesizes speech from a JSON file,
    containing English-Mandarin pairs"""
    with open(file, 'rb') as infile:
        output_dir = make_output_dir_if_needed(base_output_dir, infile)
        language_pairs = json.load(infile)
    try:
        for english, mandarin in language_pairs.items():
            synthesize_speech_one_item(english, 'en-US', 'JessaRUS', english, output_dir)
            synthesize_speech_one_item(mandarin, 'zh-CN', 'Kangkang, Apollo', english, output_dir)
    except FileNotFoundError as ex:
        pathlib.Path.rmdir(output_dir)
        print(ex)
        print("Invalid input. Cleaning up... Program will attempt to remove new mp3 directory.")
        print("Then please fix the error and try again.")

def synthesize_mandarin_from_text(file, output_name):
    """Synthesizes speech from a text file,
    containing Mandarin phrases"""
    with open(file, 'r') as infile:
        output_dir = make_output_dir_if_needed(infile)
        lines = json.load(infile)

        for line in lines:
            file_name = output_name + "_{}".format(i)
            synthesize_speech_one_item(line, 'zh-CN', 'Kangkang, Apollo', output_name, output_dir)

new_inputs = check_for_new_files()
len_new_inputs = len(new_inputs) if type(new_inputs) != bool else 0 
print(len_new_inputs)
if len_new_inputs > 0:
    json_inputs = []
    for file in new_inputs:
        csv_file = './csv_inputs/{}.csv'.format(file)
        saved_json = save_csv_to_json(csv_file)
        json_inputs.append(saved_json)

    if json_inputs:
        for json_input_file in json_inputs:
            synthesize_speech_from_json(json_input_file)
else:
    print("No new CSV inputs")