I am currently engaged in a project requiring precise frequency measurement using a Teensy 4.1. The project involves measuring the interval of a sine wave generated from an induced voltage. After conducting initial tests with professional equipment, we've determined that we need to achieve a sampling rate of at least 30 measurements per millisecond to accurately capture the waveform.

**Challenge**:

**Objective**: To accurately measure the intervals of a sine wave of induced voltage using ADC on a Teensy 4.1.**Required Sampling Rate**: Minimum of 30 samples per millisecond.

**Current Progress**:

- In our current setup, we are only able to achieve an average of about 11 measurements per millisecond over a span of 10,000 samples, which falls short of our requirement.
- We understand that achieving such a high sampling rate might involve optimizing the ADC settings or possibly employing advanced techniques.

**Questions**:

- Could you provide insights or suggestions on how to optimize the Teensy 4.1's ADC to achieve our target sampling rate of 30 measurements per millisecond?
- Are there specific configurations, libraries, or coding practices with Teensy 4.1 that would facilitate reaching this high frequency measurement capability?
- Would implementing techniques like Direct Memory Access (DMA) or other advanced methods be beneficial in this context?
- Any tips on managing data buffering and processing at such high sampling rates would also be greatly appreciated.