{"version":"1.0","type":"rich","title":" tremor analysis Magnitude (dB)","description":"This visualization displays the frequency spectrum of tremor heart-rate data, plotting magnitude in decibels against frequency on logarithmic scales. The heart-rate signal (512 samples) is processed through a custom radix-4 Fast Fourier Transform (FFT) implementation (fftClass.js), producing a double-sided spectrum from which magnitude values are calculated. The resulting frequency-magnitude pairs are rendered as a line chart using D3.js, with the viz.js module handling logarithmic scaling, axes, and the SVG line path. The plot reveals dominant frequency components in the tremor data, with a gray background rectangle framing the chart area.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/1373ee17d4664da0a4c36c825b8d8a2c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}