post https://api.d-id.com/audios
Upload an audio file to a temporary storage before creating an animation. The audio is uploaded using multipart/form-data. the filename directive is optional and if provided should contain up to 50 valid characters long. The resulting file is stored as a .wav file in a 16kHz sample rate. Valid characters: a-z A-Z 0-9 . _ - Supported mime types: "audio/, video/" Storage duration: 24-48H