*Question E7F14:
Which of the following would allow a digital signal processing filter to create a sharper filter response?*  

*Correct Answer is  B: More taps*  

### AI Response: (may contain errors)  

To create a sharper filter response in digital signal processing, the correct answer is **B: More taps**. Here's why:

### Explanation of the Correct Answer:
- **More taps** refers to the number of coefficients in a digital filter. Increasing the number of taps allows for a more complex filter design, which can more accurately shape the frequency response. This results in a sharper transition between the passband and the stopband, improving the filter's ability to distinguish between different frequencies.

### Why the Other Choices are Incorrect:
- **A: Higher data rate**  
  A higher data rate does not inherently improve the sharpness of the filter response. It may allow for more data to be processed in a given time, but the filter's characteristics depend more on its design (e.g., number of taps) than on the data rate itself.

- **C: Lower Q**  
  The Q factor (quality factor) of a filter relates to its bandwidth relative to its center frequency. A lower Q typically results in a wider bandwidth, which means a less sharp filter response. Therefore, lowering the Q would not create a sharper filter.

- **D: Double-precision math routines**  
  While using double-precision math can improve numerical accuracy and reduce quantization errors, it does not directly affect the filter's response characteristics. The sharpness of the filter is primarily determined by its design parameters, such as the number of taps.

### Summary:
- **More taps** lead to a sharper filter response by allowing for a more complex frequency shaping.
- Other factors like data rate, Q factor, and precision of calculations do not directly enhance the sharpness of the filter response.

This understanding is crucial for designing effective digital filters in various applications.