Official Ruby client for Transcreva (https://transcreva.net/): cloud-native Portuguese (PT-BR & PT-PT) AI audio and video transcription, WhatsApp voice note transcription (https://transcreva.net/transcrever-audio-whatsapp), MP3 to text converter (https://transcreva.net/converter-mp3-em-texto), academic interview transcription (https://transcreva.net/transcricao-de-entrevistas), and automatic SRT/VTT subtitle generator (https://transcreva.net/gerador-de-legendas-automatico).