Audio – How can I prevent my Mac from using my Mac automatically? [input only] USB microphone as the output device?

I have a MacBook Pro 2015 for the latest version of High Sierra. I often use a USB microphone for Skype, etc. When I plug in the microphone, it automatically recognizes my Mac as an input source. It's good. Anyway, it Likewise automatically detects it as the output source, which is not good at all, since the microphone has no output functions. Every time I plug in the microphone, I have to go to the sound settings and deselect the output.

Picture of the sound menu
How can I prevent my Mac from automatically recognizing my microphone as the source – and still recognize it as an input source?

Driver – noise very loud in the microphone

I'm using kubuntu 18.10, but this problem occurs in every distribution.
It is a microphone very loud. It is not the typical background noise, it is so, but louder and I can not hear my voice.

In Windows I do not have this problem. Well, I have another with the volume, and if I uninstall the audio driver, I get the same problem with the microphone.

What can I do?

My laptop is an Asus Q502l.
Card: HDA Intel PCH chip: Realtek ALC3229

Hide / disable microphone option on the Android soft keyboard

I want to hide the microphone in front of the soft keyboard in my current application.

I've tried these possible solutions for the same thing.

Disable the speech-text (micro-phone) key on the keyboard with the soft entry in Android programmatically

However, this solution does not work at all.

I found an unexpected thing when addType = "textFilter" is added, then it works for me, I mean, the microphone is hidden.

But if possible, I would like to have the exact solution to the problem, because if I take over the mentioned "textFilter" thing, it can break down later.

I tried it on below. versions

  1. Pie (API-28), device – Pixel2XL
  2. Marshmallow (API-23), Device – MotoE3Power

Audio Chrome Batch adds microphone permissions to multiple sites

I'm working on a Chrome extension that allows for user input through a microphone. There is a finite but somewhat large list of sites where the extension is to be used.

At the moment, the user has to accept the microphone access on each new page on which the extension is working. Is there a way to add a list of approved sites at one time using either scripts or an IT / administrative approach?

I'm not wondering how to bypass the Chrome permissions dialog, but how to set it up so that many sites can be approved at the same time during the installation of the extension (or after installation). Is there a "batch add" feature in Chrome? Is there a workaround? I try to avoid the user being confronted with the permissions dialog box dozens of times when using a number of websites.

usb – How can I change the standard microphone input on Android devices?

I have an Android box (no TV box) no built-in camera or microphone, I've connected the Logitech c920 webcam via a USB port. (The Android box: supports OTG port and jack 3.5, but I want to know if the connection via a USB camera is possible).

The camera is compatible, but I can not hear anything, I can only record videos. I've tried many apps, but the only app that recognizes video and audio with the same configuration is USB Camera – Connect EasyCap or USB WebCam , I want to activate a microphone from the webcam for almost every app.

Can I somehow change the standard microphone option? Is this possible if I change some settings or with shell commands / or script / or app or some other way? Can someone help?

Is there any additional lens accessory that collects additional light, since a parabolic microphone can record more sound?

If you have edited your question, I have more space. The same as a parabolic microphoneEvery mirror lens does exactly the same thing. It takes parallel rays from a distance and focuses them on a smaller point … the focal point.

https://en.wikipedia.org/wiki/Catadioptric_system#Photographic_catadioptric_lenses

https://www.google.com/search?q=mirror+lens

Ever heard of the Hubble telescope? A mirror lens collects light.

The James Web Telescope I mention this particular telescope because it is used a series of mirrors… to collect more light, but the overall shape is a section of a parabolic mirror. The array is not intended as an additional attachment, but as such, planned from the beginning because this light must be focused in exactly the same place.

But an optical lens also collects light. The bigger, the better, that's why a large aperture collects more light than a smaller one.

A slow shutter speed gives the sensor more time to collect light.


Extended answer

I understand your analogy to a parabolic microphone. However, there are some differences.

Yes, you can have parabolic mirroring material … a wall, a fruit plate or a special plastic parabolic attachment … and a microphone. This microphone can actually work independently of the parabolic attachment to find closer sounds.

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The pure sensor corresponds to the microphone diaphragm. But one difference is that it requires a focused beam to actually work.

This appendix does not work just because …

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We actually build parabolic lenses that are equivalent on a parabolic "microphone" (again, the parabolic is a different mount than the actual microphone).

Each large telescope is a reflector telescope, but you do not place the camera in front of the reflector, but set up an additional mirror to leave the camera behind.

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On a smaller scale, every mirror lens, usually a telephoto lens, is exactly the same principle: collecting light … the bigger the better, but the bigger, the bigger the volume, so you can limit the size to a manageable lens.

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But also the normal lenses. However, they do so by breaking light rather than reflecting it. The bigger the lens, the more light it can collect.

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The purpose of a lens is to collect more light … more light than what? You can ask …

The simpler camera without lens is a pinhole camera … but the area that receives light must be very small to produce a decent image.

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Here is a side-by-side comparison of a device to collect more light … The first is not to scale …

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Each lens is a device that can record more light than a smaller one.


I also mentioned the shutter speed,

With a static object with a fixed camera (tripod), you can gather more light to give the photo more time … But this does not work with sound waves because the sound is completely time-dependent. The sound is a vibration and its frequency is vibrations per second. The resulting file or recording must be reproduced over time (duration of recording).

But photography compresses time … You can collect photons over 22 days to create a single photo.

Sound – The microphone recording is slightly static and crackling despite all attempts to solve it

Exactly what the title says. I have a microphone that works well on Windows, but regardless of the distribution, there is always a slight click sound when using the microphone.

I tried everything and added Charge module module-hal-detect tsched = 0 to /etc/pulse/default.pa, fiddling with the language levels alsamixerYou name it, I tried it and it did not work. It crackles on, no matter what I throw.

I would be happy about any solution that you could offer.

Many Thanks.

Microphone does not work when connected to a Bluetooth FM transmitter

When I am connected to my FM station, I can hear audio from calls, but they hardly hear me.

If I want to use Google Assistant, I have to scream too. I think the problem is that a microphone is used on the transmitter unlike the microphone on my phone, and this microphone is bad. However, this was always a problem, even if the device was new 3 years ago.

I can not seem to find any information about the exact model of the transmitter I have, but this was the Amazon title: Car FM Transmitter W 2.4A USB Charger, Nulaxy ™ 2015 the latest wireless Bluetooth FM Transmitter Car Kit for all smartphones, Tablets, mp3 players
Sold by: DinoSonic

It seems that there should be a setting where you can choose which microphone to use when connected to a Bluetooth device. However, this does not seem to be an option. As a reference, I currently use a pixel 3, but the same problem with a Pixel 2, Droid Turbo 2 and Galaxy S5 was present, apparently in many Android versions. If this is the wrong forum to ask this question, or if more information is needed, let me know.