PROBLEM TO BE SOLVED: To provide a waveform generator which is effective for a wide range of deep muscles and reduces an unpleasant stimulus such as tingling generated when a frequency of a high frequency contained therein is lowered. SOLUTION: A pulse train signal oscillating means outputs a pulse train signal to a subsequent stage based on a high frequency change curve function, and a pulse slow / slow time setting means has a pulse slow / fast time (C) at a time (t 1 ) based on a pulse slow / fast time setting function. 1 ) is obtained, the time after the pulse slowing / slowing time (C 1 ) elapses is set as the time (t 2 ), and the shortening coefficient setting means is the shortening coefficient (K 1 ) at the time (t 1 ) based on the high frequency change curve function. ) Is set, and the pulse train output time setting means sets the provisional output time (B 1 ) at the time (t 1 ) based on the provisional output time setting function, and outputs the pulse train signal to the living body at the time (t 1 ). The time obtained by multiplying the provisional output time (B 1 ) by the shortening coefficient (K 1 ) is defined as the pulse train output time (D 1 ), and the output to the living body after the pulse train output time (D 1 ) elapses from the time (t 1 ). Is stopped, and after that, it operates in the same procedure to give electrical stimulation to the living body. [Selection diagram] Fig. 3【課題】広い範囲の深層筋に効果があり、かつ、含まれる高周波の周波数下降時に生じるチクチクといった不快な刺激感を低減した波形発生装置を提供する。【解決手段】パルス列信号発振手段は高周波変化カーブ関数に基づいてパルス列信号を後段に出力し、パルス緩急時間設定手段は、パルス緩急時間設定関数に基づいて時刻（ｔ１）におけるパルス緩急時間（Ｃ１）を得て、パルス緩急時間（Ｃ１）経過後の時刻を時刻（ｔ２）とし、短縮係数設定手段は、高周波変化カーブ関数に基づいて、時刻（ｔ１）における短縮係数（Ｋ１）を設定し、パルス列出力時間設定手段は、暫定出力時間設定関数に基づいて、時刻（ｔ１）における暫定出力時間（Ｂ１）を設定し、時刻（ｔ１）にパルス列信号を生体に出力開始し、暫定出力時間（Ｂ１）に短縮係数（Ｋ１）を乗じた時間をパルス列出力時間（Ｄ１）とし、時刻（ｔ１）からパルス列出力時間（Ｄ１）経過後に生体への出力を停止し、以降も同様の手順で動作して電気的刺激を生体に与える構成を採る。【選択図】図３
