In telemedicine, a transmission device capable of appropriately transmitting patient's body sound information to a doctor while maintaining call quality between the patient and the doctor is provided. A transmission device includes: sound collecting units for collecting biological sounds； and a communication unit for transmitting biological sounds collected by the sound collecting units to a receiving device through a communication line； A visible data generating unit 15 that generates visible data from all or part of the body sounds collected by the sound collecting units 11 and 12 and a data communication unit 16 that transmits the visible data to the receiving device 20 through a data line are provided. [Selection] Figure 1【課題】遠隔医療において，患者と医師の間の通話品質を維持しつつ，患者の生体音情報を適切に医師に伝達できる送信装置を提供する。【解決手段】送信装置１０は，生体音を集音する集音部１１，１２と，集音部１１，１２が集音した生体音を通話回線を通じて受信装置２０に伝送する通話部１３と，集音部１１，１２が集音した生体音の全部又は一部から可視データを生成する可視データ生成部１５と，可視データをデータ回線を通じて受信装置２０に送信するデータ通信部１６を備える。【選択図】図１
