Equal loudness contour
Build you own loudness contours
Sound pressure-80-70-60-50-40-30-20-10010-80 dbFrequencyC0C1C2C3C4C5C6C7C8C9C1010 Hz20 Hz50 Hz100 Hz200 Hz500 Hz1000 Hz2000 Hz5000 Hz10000 Hz20000 Hz10.0 HzD# 49D#START AUDIO

Find your own equal loudness contour
Place sine oscillators on the 2D-plane where vertical axis is the volume and horizontal is the frequency of the sounds being played. You can build up a curve for your absolute threshold of hearing, or explore your own feeling of really loud sounds. Be careful clicking at the top of the graph!