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DC bias - Wikipedia
https://en.wikipedia.org/wiki/DC_bias#:~:text=Audio%20In%20audio%20recording%2C%20a%20DC%20offset%20is,is%20normally%20caused%20by%20defective%20or%20low-quality%20equipment.
DC offset and Audio Filtering - SoliCall
https://solicall.com/dc-offset-and-audio-filtering/
In many cases a DC offset is caused by the analogue parts of the system that add a DC current to the audio signal. Such analogue parts might be any analogue component that is part of the audio path like: the sound cards or the microphone.
small audio amplifier (voltage converter) output DC bias ...
https://electronics.stackexchange.com/questions/270094/small-audio-amplifier-voltage-converter-output-dc-bias-problem
It otherwises causes the DC bias! Except that the cirucit is working fine, I am using it to power a raspberry PI audio from 1Vpp to 3Vpp I have built a small audio amplifier to convert a 1vpp audio signal to 3vpp. This signal is then fed into a strong amplifier with input impedance of around 6k. The main signal I am going to drive is around 60Hz.
MAGNETIC RECORDING WITH D. C. BIAS - Audio …
https://www.aes.org/aeshc/docs/3mtape/soundtalk/soundtalkbull08.pdf
C. bias, of course, gives a pporer signal to noise ratio than is obtained with high frequency bias, and so has yielded to the latter method for high quality audio applications. For fair quality audio work and, in computing machines, the use of D. C. bias may be more desirable by virtue of its sim- …
DSP Tricks: DC Removal - Embedded.com
https://www.embedded.com/dsp-tricks-dc-removal/
A non-zero DC bias level in audio signals is particularlytroublesome because concatenating two audio signals, or switchingbetween two audio signals, results in unpleasant audible clicks. Inmodern digital communications systems, a DC bias on quadrature signalsdegrades system performance and increases bit error rates.
What is DC Offset? | Steve Hoffman Music Forums
https://forums.stevehoffman.tv/threads/what-is-dc-offset.50585/
The signal goes up to a peak and then comes down to zero and then continues to a negative peak and back up. If the center point is at 0 volts, there is no dc offset. If there is 1 volt DC offset, the center point will be above the zero point. In audio circuitry, a series capacitor is often used between stages to eliminate the dc offset.
DC offset | Electronics Forum (Circuits, Projects and ...
https://www.electro-tech-online.com/threads/dc-offset.27877/
If you apply a AC+DC signal to the transistor, the DC offset of the transistor adds into the DC offset that is being used to bias the transistor. This increased DC offset pushes the voltage range outside of the proper operation of the transistor, especially when you add the AC signal in. If the two DC offsets are large enough they push the transistor out of it's operating …
Amplifier DC Offset - How Much is OK? | diyAudio
https://www.diyaudio.com/community/threads/amplifier-dc-offset-how-much-is-ok.131962/
that had loudspeaker as the bias component, to feed the amplifier a small current for start up. radioam232 Simple Class A. This amplifier defintely will have some dc-offset! Now, he is only using very small Class A current. And it works. As can be seen from his videos. He has got 203 youtube videos - most related to electronics
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