Task: Perform speech-to-text on recorded audio clips using Wit.ai

n8n workflow:
{"nodes":[{"name":"Read Binary File","type":"n8n-nodes-base.readBinaryFile","position":[450,300],"parameters":{"filePath":"/data/demo1.wav"},"typeVersion":1},{"name":"HTTP Request","type":"n8n-nodes-base.httpRequest","position":[650,300],"parameters":{"url":"https://api.wit.ai/speech?v=20200513","options":{"bodyContentType":"raw"},"requestMethod":"POST","jsonParameters":true,"sendBinaryData":true,"headerParametersJson":"={{JSON.parse('{\"Authorization\":\"Bearer {your_token_goes_here}\", \"Content-Type\":\"audio/wav\"}')}}"},"typeVersion":1}],"connections":{"Read Binary File":{"main":[[{"node":"HTTP Request","type":"main","index":0}]]}}}