We can convert a number to audio based on provided audio file for that number.

• The input of this program is the number (as string) → Convert the number into its text form
  • Using Dictionaries
• There are 16 files (in accordance to 16 speakers s01, s02, …, s16), each of which has 10 audio files (zero.wav, one.wav, …, nine.wav).
  • We will allow the user to select which speaker they want to hear.

speakers = {'1': 's01', '2': 's02', '3': 's03', '4': 's04', '5': 's05', '6': 's06', '7': 's07', '8': 's08', 
            '9': 's09', '10': 's10', '11': 's11', '12': 's12', '13': 's13', '14': 's14', '15': 's15', '16': 's16'}

numbers_dict = {'0': 'zero', '1': 'one', '2': 'two', '3': 'three', 
                '4': 'four', '5': 'five', '6': 'six', '7': 'seven', '8': 'eight', '9': 'nine'}

# Input are strings 
number_input = list(input("Enter number: "))

if any([i not in numbers_dict.keys() for i in number_input]):
    print("Invalid Input")

else:
    # Convert the input to number
    converted = [numbers_dict[i] for i in number_input]
    print("Convered to:", converted)
    # We will allow the user to select which speaker they want to hear
    s = input("Select Speaker (1 to 16): ")
    if s not in speakers.keys():
        print("Invalid Input")
    else:
        print("Speaker:", speakers[s])

Output:

Enter number: 1234567890
Convered to: ['one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine', 'zero']
Select Speaker (1 to 16): 12
Speaker: s12

Enter number: 2465718901929
Convered to: ['two', 'four', 'six', 'five', 'seven', 'one', 'eight', 
'nine', 'zero', 'one', 'nine', 'two', 'nine']
Select Speaker (1 to 16): 6
Speaker: s06

• Continue from the previous code:

# Import this library at the beginning of the code
from pydub import AudioSegment
from pydub.playback import play

if any([i not in numbers_dict.keys() for i in number_input]):
    print("Invalid Input")

else:
    audio_number = []
    # Convert the input to number
    converted = [numbers_dict[i] for i in number_input]
    print("Convered to:", converted)
    # We will allow the user to select which speaker they want to hear
    s = input("Select Speaker (1 to 16): ")
    if s not in speakers.keys():
        print("Invalid Input")
    else:
        print("Speaker:", speakers[s])
        for k in converted:
            sound = AudioSegment.from_file(f"Project_AudioNumber/digits/{speakers[s]}/{k}.wav", 
                                           format="wav")
            audio_number.append(sound) # Append to list
		# The sum() function will concatenate the sound files
		# to create a full audio
    play(sum(audio_number))

Output:

Enter number: 1234567890
Convered to: ['one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine', 'zero']
Select Speaker (1 to 16): 16
Speaker: s16
Input #0, wav, from '/var/folders/gc/49grx5f90nv3f12yh4jhhf740000gn/T/tmpcuhzsfdj.wav':
  Duration: 00:00:16.67, bitrate: 705 kb/s
  Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 1 channels, s16, 705 kb/s
  16.60 M-A: -0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B 

• Export the audio file

export_path = "audio.wav"
sum(audio_number).export("audio.wav", format="wav")

Sample audio file (input = 0123456789, speaker = s016):

audio.wav