### Decimation & Interpolation

The Decimation & Interpolation tool is designed to enhance your lecture recordings by applying advanced resampling techniques. This tool allows you to effectively reduce the sampling rate (decimation) and increase it (interpolation) using various methods, ensuring high-quality audio playback.

**How It Works:**
- **Input:** WAV audio signal
- **Processing:**
  - **Decimation:** Reduces the sampling rate of the audio signal using anti-aliasing filters.
  - **Interpolation:** Increases the sampling rate using different interpolation methods (Shannon, Zero-Order Hold (ZOH), First-Order Hold (FOH)).
- **Output:** Resampled WAV audio file

**Key Features:**

1. **Decimation with Anti-Aliasing Filtering:** Safely reduce the sampling rate of your audio while preventing aliasing artifacts, ensuring clear and accurate sound.
2. **Multiple Interpolation Methods:**
   - **Shannon Interpolation:** Provides the most accurate reconstruction of the original signal.
   - **Zero-Order Hold (ZOH):** Holds each sample value constant until the next sample, simple but effective.
   - **First-Order Hold (FOH):** Linearly interpolates between sample values for a smoother reconstruction.
3. **High-Quality Resampling:** Maintains the integrity and quality of your audio during the resampling process.

**Benefits for Students:**

- **Efficient Storage and Processing:** Decimate audio signals to reduce file sizes for easier storage and faster processing without losing important information.
- **Flexible Playback:** Interpolate audio signals to adjust the sampling rate for different playback or analysis needs, ensuring compatibility with various audio systems.
- **Enhanced Audio Quality:** High-quality resampling techniques ensure that the audio remains clear and intelligible, whether you're slowing down for detailed study or speeding up for quick review.

Improve your lecture recordings with our Decimation & Interpolation tool, and enjoy the flexibility and quality you need for effective study sessions.