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Sound card microphone - Hobby Hour
https://www.hobby-hour.com/electronics/computer_microphone.php#:~:text=Most%20sound%20card%20microphone%20inputs%20require%20a%20minimum,20%20kohms%20%28can%20vary%20from%20card%20to%20card%29.
How to Identify the input voltage range of PC Soundcard ...
https://www.edaboard.com/threads/how-to-identify-the-input-voltage-range-of-pc-soundcard.129939/
sound card voltage input That's right, the sample rate of most sound cards goes up to only 48 ksps. A 38.4 kbps signal would look badly jittery. Some fancier sound cards go up to 96 ksps or even 192 ksps. The waveform would look better, but still jittery. Also remember that most sound cards are AC coupled.
Sound card input voltage range? | diyAudio
https://www.diyaudio.com/community/threads/sound-card-input-voltage-range.162610/
Stick to 0.5 Vrms or less into the 'line in' input. Don't use it if it's only mic input ! Most laptop users use an external sound card ( USB audio ) like the M-Audio Transit for measurement/recording purposes. Even that has limited input I think. Might be 0.775 V or so.
analog - What is the typical max voltage out of a PC ...
https://electronics.stackexchange.com/questions/37926/what-is-the-typical-max-voltage-out-of-a-pc-speaker-jack
I got +/- 1.5v (3.0 volts peak to peak). This was not under controlled conditions with a known audio source. I would guess that the output could peak at higher than +/- 3v (6v peak to peak). Show activity on this post. In some cases [ not extreme cases] due to the ground looping it may get up to more than ~60V.
Sound card microphone - Hobby Hour
https://www.hobby-hour.com/electronics/computer_microphone.php
Computer microphones Interfacing Microphones to Computer Sound Cards . 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).
Turn Your Computer’s Sound Card into a Scope | Nuts ...
https://www.nutsvolts.com/magazine/article/turn-your-computers-sound-card-into-a-scope
An example of a measurement of an incoming sound signal using the built-in microphone …
How to connect your computer audio output to your …
https://www.ramelectronics.net/howto-pc-audio.aspx
Assuming your computer is loaded with the appropriate computer recording software, you will need to connect the audio input of your computer to the audio output of your tape deck or cd player. We recommend a 3.5mm mini phone plug to Rca jack adapter with a RCA jack stereo cable which plugs into the "line" input of your computer’s sound card.
PC microphone in voltage - Tom's Guide Forum
https://forums.tomsguide.com/threads/pc-microphone-in-voltage.239703/
Mic inputs expect something closer to 0.01V (10mV). Even the "line-level" inputs are designed for something less than 1V. Note that there are products designed for computers that are A/D converters...
Line level - Wikipedia
https://en.wikipedia.org/wiki/Line_level
The line level signal is an alternating current signal without a DC offset, meaning that its voltage varies with respect to signal ground from the peak amplitude (for example +1.5 V) to the equivalent negative voltage (−1.5 V).. Impedances. A line driver is typically used to drive line-level analog signal outputs. As cables between line output and line input are generally extremely …
3 Ways to Connect Audio Devices to Computers - wikiHow
https://www.wikihow.com/Connect-Audio-Devices-to-Computers
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