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Tape bias - Wikipedia
https://en.wikipedia.org/wiki/Tape_bias#:~:text=Tape%20bias%20is%20the%20term%20for%20two%20techniques%2C,40%20to%20150%20kHz%29%20to%20the%20audio%20signal.
DC biasing audio signal - Electrical Engineering Stack ...
https://electronics.stackexchange.com/questions/14404/dc-biasing-audio-signal
It is also the solution that most audio circuits use. Unless you are wanting pro-audio levels of performance, this is the method that I would recommend. The "correct" solution would be to have a separate power rail that is at the bias voltage. Run your audio signal through a DC blocking cap then have a resistor to the bias power rail.
Adding DC bias to signal? - Audio - Arduino Forum
https://forum.arduino.cc/t/adding-dc-bias-to-signal/65190
Although a signal would sound the same centered on 0 or 2.5 volts, the 0-5v signal would be clipped if put into the audio device. The dc offset just seems to limit the headroom of the mixer/recorder/whatever. Grumpy_Mike July 24, 2011, 10:18pm #12. 0-5v, but my audio device only has headroom for a signal that varies from -2.5 to 2.5 volts.
Need of DC and AC Biasing - Electronics and Communication ...
https://www.electronicsandcommunications.com/2014/04/need-of-dc-and-ac-biasing.html
Biasing is of two types: DC Biasing and AC Biasing. 1.DC Biasing: This is done by adding a constant direct current (DC) to the audio signal to be processed and is operated in the linear region of hysteresis curve. This gives a distortion free output. Advantages: 1.It improves the quality of the reproduced signal.
How to Measure DC Offset: 5 Steps (with Pictures) - …
https://www.wikihow.com/Measure-DC-Offset
DC offset (also known as DC bias) is a concept employed when dealing with electrical components, most notably audio equipment. These components send either power or audio signals using alternating current (AC), by which the signal reverses direction regularly.
Best tool for removing DC bias? - Gearspace.com
https://gearspace.com/board/mastering-forum/956637-best-tool-removing-dc-bias.html
If DC offset isn't changing during playback (only after change of audio path before A/D), subtraction can work well for removal. I don't know Audition, but if i remember it correctly from venerable CoolEdit, DC removal was part of amplification effect and it subtracted calculated amplitude mean for all samples in selection.
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