Signal Processing

Signal Processing Algorithms

Our library of tried and tested algorithms comprises the whole spectrum, that is required for the development of powerful intercom systems. In addition to the classical audio signal processing we provide algorithms for the enhancement of speech signals like echo cancellation and noise cancellation.


  • AEC (Acoustic Echo Cancellation)
  • LEC (Line Echo Cancellation)
  • VAD (Voice Activity Detection)
  • LAD (Level Activity Discriminator)
  • ANC (Automatic Noise Cancellation)
  • Filter / Equalizer (parametric, filter types per band: Peaking, Notch, Low-/High-Pass, High-/Low-Shelf)
  • Dynamic Processor (Noise Gate, Expander, Compressor, Limiter)
  • AGC (Automatic Gain Control)
  • QRMS Level Measurement
  • RMS Level Measurement
  • Switching matrix with node gains
  • Volume adjustment with fading