Audio converteren en opslaan met PyDub

Spoken Language Processing in Python

Daniel Bourke

Machine Learning Engineer/YouTube Creator

Audiobestanden exporteren

from pydub import AudioSegment

# Audiobestand importeren
wav_file = AudioSegment.from_file("wav_file.wav")

# Verhoog met 10 decibel
louder_wav_file = wav_file + 10

# Luider audiobestand exporteren
louder_wav_file.export(out_f="louder_wav_file.wav", format="wav")

<_io.BufferedRandom name='louder_wav_file.wav'>

Meerdere audiobestanden herformatteren en exporteren

def make_wav(wrong_folder_path, right_folder_path):

    # Loop door verkeerd geformatteerde bestanden
    for file in os.scandir(wrong_folder_path):

    # Werk alleen met audio-extensies die we fixen
    if file.path.endswith(".mp3") or file.path.endswith(".flac"):

        # Maak de nieuwe .wav-bestandsnaam
        out_file = right_folder_path + os.path.splitext(os.path.basename(file.path))[0] + ".wav"

    # Lees het audiobestand en exporteer als wav
    AudioSegment.from_file(file.path).export(out_file,
                                             format="wav")

    print(f"Creating {out_file}")

Meerdere audiobestanden herformatteren en exporteren

# Roep onze nieuwe functie aan
make_wav("data/wrong_formats/", "data/right_format/")

Creating data/right_types/wav_file.wav
Creating data/right_types/flac_file.wav
Creating data/right_types/mp3_file.wav

Bewerken en exporteren

def make_no_static_louder(static_quiet, louder_no_static):
    # Loop door bestanden met ruis en lage volume (al in wav)
    for file in os.scandir(static_quiet_folder_path):

        # Maak nieuw bestandspad
        out_file = louder_no_static + os.path.splitext(os.path.basename(file.path))[0] + ".wav"

        # Lees het audiobestand
        audio_file = AudioSegment.from_file(file.path)

        # Verwijder eerste drie seconden, +10 dB en exporteer
        audio_file = (audio_file[3100:] + 10).export(out_file, format="wav")

        print(f"Creating {out_file}")

Bewerken en exporteren

# Verwijder ruis en maak luider
make_no_static_louder("data/static_quiet/", "data/louder_no_static/")

Creating data/louder_no_static/speech-recognition-services.wav
Creating data/louder_no_static/order-issue.wav
Creating data/louder_no_static/help-with-acount.wav

Jouw beurt!

Spoken Language Processing in Python