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Sorry, what?

  • On June 2, 2022
In this post we would like to discuss a disturbance in phone calls that might happen from time to time: you are in a phone call but the voice of the other party is too weak making it had to understand. In this case you will initially try and increase the volume on your side […]
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DC offset and Audio Filtering

  • On April 20, 2019
In this post we describe a phenomena called “DC offset” in audio signal and its impact on the quality of audio filtering like noise reduction, echo cancellation and automatic gain control. We say that a signal has a DC offset distortion when the mean amplitude of its waveform is not zero. A normal voice is […]
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