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Computer microphones - Hobby Hour
https://www.hobby-hour.com/electronics/computer_microphone.php#:~:text=The%20typical%20impedance%20of%20the%20PC%20soundcard%20microphone,with%20computer%20sound%20cards%20is%20the%20electret%20microphone.
What is Impedance in Audio? Input and Output …
https://virtuosocentral.com/what-is-impedance-in-audio/
What is Input Impedance? If your equipment receives an audio signal, it has input impedance. It recognizes the signal coming from the other piece of equipment. Where connected, it “sees” the output impedance from the other device. As the signal passes from one place to another, it’s called a load (load impedance). What is Output Impedance?
Why is the input impedance so high for computer …
https://arstechnica.com/civis/viewtopic.php?t=851329
The 10K input impedance was probably the impedance of the input amplifier circuit, not the sub driver itself...therefore it's just a normal, low-current line-level signal from the soundcard to the ...
[SOLVED] Impedance of earphone jack on standard PC?
https://www.linuxquestions.org/questions/linux-hardware-18/impedance-of-earphone-jack-on-standard-pc-4175536720/
Design Something with 2 audio outputs to be fed from the earphone jack of a pc. No problem. If the inputs of the equipment you're driving are ordinary "Line In", they have high impedance, typically around 50kohms. In that case, you can wire two or more inputs in parallel and feed them from a single earphone output.
How to verify impedance being used? - Windows 10 Forums
https://www.tenforums.com/sound-audio/156932-how-verify-impedance-being-used.html
Sorry I am not describing this well! " If your Realtek Audio solution has a dedicated headphone amplifier, set the soundcards output impedance/gain (Ω = ohm) to a value close to the headphones input impedance. Do not set the impedance much higher as it may damage the headphones." I am now missing this. My Computer.
Is there any standard for the input impedance of an audio ...
https://electronics.stackexchange.com/questions/342975/is-there-any-standard-for-the-input-impedance-of-an-audio-amplifier
There is a sortof standard for a certain class of professional audio gear. This standard is 600 Ω. All "line level" audio in such a setup is expected to drive 600 Ω. This is also the impedance of the microphones. However, many many amps don't follow this.
Measuring input impedance and calculating output …
http://www.sengpielaudio.com/calculator-InputOutputImpedance.htm
Loudspeaker impedance = 8 ohms. V = √ ( P × R) = √ (50 × 8) = 20 volts. (You can also use 10 V.) Give a sine voltage of 1 kHz to the amplifier input, until we get 20 volts at the output. Now we apply the "90% method", that is when we put an output resistance R, until there appear 90% of the open circuit voltage, in this case 18 volts.
Understanding Impedance - Sound on Sound
https://www.soundonsound.com/techniques/understanding-impedance
The DIN specification states that the current source should give an output voltage of 1mV per 1kΩ of input impedance. Typically, the input impedance of a DIN-compatible unit would be 100kΩ, and so would see an input signal voltage of about 100mV. Hi-fi equipment with phono connectors usually employs the voltage matching concept, with very low output impedance and much …
Computer microphones - Hobby Hour
https://www.hobby-hour.com/electronics/computer_microphone.php
Most sound card microphone inputs require a minimum signal level of at least 10 millivolts, but some older 8-bit cards need as much as 100 millivolts. The typical impedance of the PC soundcard microphone input is in order of 1 to 20 kohms (can vary from card to card). The microphone type which works best with computer sound cards is the electret microphone.
How could impedance damage a computer stereo output? | Tom ...
https://forums.tomsguide.com/threads/how-could-impedance-damage-a-computer-stereo-output.391059/
Impedance alone cannot damage anything, but current and voltage can. That is the reason that voltage and impedance or current and impedance are usually quoted together. It is possible that drawing too much current from the motherboard could damage it. Equally output equipment may be damaged if the input voltage is higher than specified.
audio - What is the impedance of the line/headphone jack ...
https://apple.stackexchange.com/questions/57186/what-is-the-impedance-of-the-line-headphone-jack-on-macbook-pro-retina
For portable use you want a low impedance headphone. On the one you quoted the 16 or 32 ohm impedance is the one you want. Lower impedance will be a little more bassy, 32 Ohm might be a smidge better quality but a little bit quieter. The high impedance headphones are for amplified studio use. I'd get the 32 Ohm unit.
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