search for: analog_root

...h easier on the ears of someone listening with headphones... To remove bass from a signal, you can run it through a high-pass filter using convolution. It's not as hard as it might sound. There's an excellent book on DSP techniques available online for free at: http://www.analog.com/Analog_Root/static/technology/dsp/training/materials/dsp_book_index.html Echo cancellation. If someone in the conversation is using speakers, the other person (or people) will hear an echo of their own voice(s) as the sound travels from the speakers back into a microphone. This is really annoying. I usu...