Signal Processing
The analysis, interpretation and manipulation of signals (sensor data).
Possible applications include:
- Find patterns
- Deduce causes of trends
- Predict (extrapolate) outcomes
- Transform data (scale, rotate, map)
Signal processing often converts time-domain inputs into Frequency Domain to make processing easier.
After analogue-to-digital conversions, speech signals become a sequence of quantised samples. Signal processing is typically performed on a fixed length sequence of these samples called blocks/frames.