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impedance - Electronic aspects of iPhone 3.5mm audio ...
https://electronics.stackexchange.com/questions/38452/electronic-aspects-of-iphone-3-5mm-audio-output
The impedance of the standard Apple miniature hands-free microphone, the one integrated with the headphones they include in the iPhone 4th gen device is …
impedance - line-level audio into an iPhone headset jack ...
https://electronics.stackexchange.com/questions/14952/line-level-audio-into-an-iphone-headset-jack
(Professional audio line input would need about 50 dB.) Attenuation in dB = 20 * log10((R1 + R2) / R2) Try R1 = 10k and R2 = 100. If you get accurate …
What is Impedance in Audio? Input and Output …
https://virtuosocentral.com/what-is-impedance-in-audio/
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 …
Using iPad/iPhone headphone jack for audio input - Gab's …
https://gmondada.wordpress.com/2017/03/28/using-ipadiphone-headphone-jack-for-audio-input/
The iPad (or iPhone) enables the jack audio input only when a microphone (or equivalent audio source) is connected. To detect that, the iPad looks at the input DC impedance. In the schematic above, the DC impedance seen by the iPad is defined by R1. If its value is too low, the iPad thinks that an headphone has been connected.
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 …
Microphone Impedance Matching - Using an SM58 on iPhone 4 ...
https://www.jeffgeerling.com/blog/2010/microphone-impedance-matching
From KVConnection: We are working on a iphone adapters with built-in impedance. matching transformers for the low impedance microphones like your Shure SM58 which has an output impedance of 150 ohms. The iphone needs to see 800 ohms or more of impedance to recognize that an external mic is plugged in.
Mic-Line - Line-Level Audio Input Adapter for iPhone ...
https://www.headsetbuddy.com/mic-line-line-level-audio-input-adapter-for-iphone-smartphones/
How it Works: From the line out of your audio source, plug in the cable required ex. (XLR male to 3.5mm TRS male). Insert the male 3.5mm (1/8 in.) TRS plug into the female end of the Mic-Line (Blue Line In). Plug the male TRRS end of the Mic-Line into your phone, laptop, etc.*.
Impedance Matching of Audio Components
http://hyperphysics.phy-astr.gsu.edu/hbase/Audio/imped.html
For a microphone impedance Ri= Ω. and a preamp input impedance of RL=Ω. the signal loss would be dB. As long as the microphone has enough signal strength to provide the minimum signal input to the mixer, it can be an advantage to connect a low impedance microphone to a moderately higher impedance input.
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
When connected headphones with an impedance of less than 150 ohms, the headphone jack provides up to 1.25 volts RMS. For headphones with an impedance of 150 to 1k ohms, the headphone jack delivers 3 volts RMS. This may remove the need for an external headphone amplifier. The built-in digital-to-analog converter supports sample rates of up to 96 kHz.
6 Best DAC For iPhone 2021 - Audio Sandwich
https://audio-sandwich.com/best-dac-for-iphone/
FiiO Q1 Mark 2. The FiiO Q1 Mark 2 is a native DSD DAC and amplifier for iPhones that …
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