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Www.acoustics.asn.au/conference_proceedings/ICA2010/cdrom-ICA2010/papers/p513.pdf. Diec.unizar.es/intranet/articulos/uploads/MARDIH2003.pdf. Pdf/1003.1509.pdf. Www.vtt.fi/inf/pdf/science/2012/S5.pdf. Transistor tutorial Audio Amplifiers, Part 5. Transistors Tutorial Part 5: by Tony van Roon (VA3AVR) "Learn about the audio amplifiers in stereos, tuners, tape/cassette, and CD players, and apply your knowledge to experiments or designs.

" Transistors are the key components in many different kinds of audio preamplifiers, amplifiers, and tone-control circuits. Recent articles in this series have discussed the operation principles and applications for discrete bipolar junction transistors (BJT). Audio Amplifier Basics: A modern stereo amplifier system has two closely matched high-fidelity audio amplifier channels. The first of these blocks is the selector/preamplifier. The tone/volume-control block permits the listener to adjust the frequency characteristics and the amplitude of the audible output to suit his individual taste. The last section of the amplifier system is the power amplifier. The three sections of the audio amplifier system are all powered from a single built-in power supply.

Continue with Transistor Tutorial Part 6. DIY active noise cancellation? Quote: The electronics in the Bose headphones will be optimised for those headphones, drivers, mic placement etc.

DIY active noise cancellation?

Just sticking them in another pair of headphones will not yield good results. The electronics have to be specifically tuned to the headset to achieve anything as good as the Bose system (the noise cancelling bit). I beg to differ. It has nothing to do with DSP technology. Back to the question in hand, yes it probably is possible if you're willing to spend enough time playing around with equalisation and delay times. AS3430 - Receive Path Active Noise Cancelling solutions for Feedback topology.