Eric Fontaine ericfont

## convert-circuitjs-export-text-to-wav.py
from scipy.io import wavfile
import scipy
import matplotlib.pyplot as plt
import numpy as np
import sys

def simple_moving_average_numpy(data, window_size):
    """Calculates the Simple Moving Average using numpy.convolve."""
    # Create an impulse response (weights) array where each weight is 1/window_size
    weights = np.ones(window_size) / window_size

## circuit-20251211-1807.svg

      
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                ericfont
                / circuit-20251211-1807.svg
            
            
              Created
              December 11, 2025 23:11
            
              
                delta + DSM
              
          
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## circuit-20251211-1725.svg

      
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                ericfont
                / circuit-20251211-1725.svg
            
            
              Created
              December 11, 2025 22:23
            
              
                hypothetical no-delay delta-modulation
              
          
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## circuit-20251210-0338.svg

      
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                ericfont
                / circuit-20251210-0338.svg
            
            
              Created
              December 10, 2025 08:36
            
              
                add 100n delay for comparator
              
          
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## circuit-20251210-0324.svg

      
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                ericfont
                / circuit-20251210-0324.svg
            
            
              Created
              December 10, 2025 08:23
            
              
                use sallen key in feedback, and then an extra sallen key for reconstruction
              
          
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## circuit-20251210-0302.svg

      
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                ericfont
                / circuit-20251210-0302.svg
            
            
              Created
              December 10, 2025 08:00
            
              
                try sallen key lowpass
              
          
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## circuit-20251210-0254.svg

      
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                ericfont
                / circuit-20251210-0254.svg
            
            
              Created
              December 10, 2025 07:52
            
              
                try multiple RC again w/comparator
              
          
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## circuit-20251210-0204.svg

      
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                ericfont
                / circuit-20251210-0204.svg
            
            
              Created
              December 10, 2025 07:03
            
              
                try slowing down dsm
              
          
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## circuit-20251203-1430.svg

      
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                ericfont
                / circuit-20251203-1430.svg
            
            
              Created
              December 3, 2025 19:29
            
              
                passive combo RC lowpass with RLC notch for reconstruction
              
          
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## circuit-20251203-1123.svg

      
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                ericfont
                / circuit-20251203-1123.svg
            
            
              Created
              December 3, 2025 16:21
            
              
                trying some LRC
              
          
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	from scipy.io import wavfile
	import scipy
	import matplotlib.pyplot as plt
	import numpy as np
	import sys

	def simple_moving_average_numpy(data, window_size):
	"""Calculates the Simple Moving Average using numpy.convolve."""
	# Create an impulse response (weights) array where each weight is 1/window_size
	weights = np.ones(window_size) / window_size