fft_separated_wavefft.png
The user wants a detailed description of an image containing two plots side-by-side.
I need to describe the visual elements clearly for someone who is blind.
This means focusing on:
- The layout (two distinct graphs).
- The axes (labels, numbers, ranges).
- The data plotted (lines, colors, shapes).
- Any text or labels.

**Left Graph:**
- It's a line graph with oscillating waves.
- X-axis: 0 to roughly 180. Ticks at 0, 50, 100, 150.
- Y-axis: -10 to 10. Ticks at -10, -5, 0, 5, 10.
- There are four distinct colored lines (waves):
    - Blue: High frequency, large amplitude. Peaks around y=6, troughs around y=-6. It completes about 4 full cycles.
    - Purple: Medium-high frequency, medium amplitude. Peaks around y=4, troughs around y=-4. Higher frequency than blue.
    - Green: Medium-low frequency, small amplitude. Peaks around y=2, troughs around y=-2.
    - Red: Low frequency, smallest amplitude (wait, let me look closer). Actually, the red line looks like a low frequency wave with an amplitude of about 2. It's distinct from the green one which has higher frequency but similar amplitude. Let's re-evaluate.
    - Let's trace carefully.
        - Blue: Starts at 0, goes up to ~6, down to ~-6. Frequency is roughly 4 cycles in the visible range (0-180). Amplitude ~6.
        - Purple: Starts at 0, goes up to ~4, down to ~-4. Frequency is higher than blue. Roughly 7-8 cycles. Amplitude ~4.
        - Green: Starts at 0, goes up to ~2, down to ~-2. Frequency is lower than purple but higher than red? No, let's look at the peaks.
            - Red peak is around x=35. Next trough around x=100. This looks like a low frequency wave. Amplitude ~2.
            - Green: Starts at 0, goes up to ~2. Then down. It seems to have a higher frequency than red. Let's count peaks. There are about 4-5 peaks visible. Wait, looking closely at the green line... it oscillates between roughly y=2 and y=-2.
            - Actually, let's look at the right graph to deduce the components. The right graph is a spectrum (Fourier transform likely). It shows spikes at specific x-values corresponding to frequencies or just indices.
            - Let's re-examine the left graph waves based on standard signal processing visuals. Usually, these show a sum of sines.
            - Blue wave: Amplitude ~6. Frequency seems to be around 4 cycles per 180 units.
            - Purple wave: Amplitude ~4. Frequency is higher than blue. Maybe double? It looks like it has about 7-8 peaks.
            - Green wave: Amplitude ~2. Frequency is lower than purple but higher than red? Or maybe similar to blue? Let's look at the zero crossings.
            - Red wave: This is the flattest looking one. It goes up slowly, down slowly. Amplitude ~2.
    - Wait, let me look really closely at the left graph again.
        - Blue line: High amplitude (~6), moderate frequency (4 cycles).
        - Purple line: Medium amplitude (~4), high frequency (looks like roughly 7-8 cycles).
        - Green line: Low-medium amplitude (~2), medium frequency (looks like roughly 5-6 cycles). Wait, looking at the green line, it seems to have a frequency similar to the blue one but lower amplitude? No. Let's count peaks for green. 1, 2, 3, 4... maybe 5 peaks.
        - Red line: Low amplitude (~2), low frequency (looks like roughly 2-3 cycles).
    - Actually, looking at the right graph is key. The right graph has spikes at x=200, 400, 600, 800. This suggests the left graph is a sum of signals with frequencies corresponding to these values (or related indices).
    - Let's assume the right graph labels correspond to the components in the left graph.
        - Spike at x=200 (Red): Corresponds to Red line. Amplitude ~3? No, looking at right graph, red spike height is roughly 3 units high on its own scale. Wait, the y-axis of the right graph isn't labeled with numbers but relative heights are clear.
        - Spike at x=400 (Blue): Tallest spike. Corresponds to Blue line. Amplitude ~6 in left graph.
        - Spike at x=600 (Green): Medium height. Corresponds to Green line. Amplitude ~2 in left graph? Or maybe the green line is the one
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