{"id":"audio-channel-converter","engine":"media","category":"audio","name":"モノラル・ステレオ変換","fields":[{"key":"file","label":"ファイルを選択","type":"file","accept":"audio/*,.wav,.mp3,.ogg,.m4a,.flac","multiple":false,"required":true},{"key":"mode","label":"処理方式","type":"select","default":"mono","options":[{"value":"mono","label":"モノラル"},{"value":"stereo","label":"ステレオ"}]}],"sample":{}}