babadoctor

Why are these devices so damn expensive? https://www.amazon.com/Speaker-Selector-Volume-Control/s?k=Speaker+Selector+With+Volume+Control https://www.aliexpress.com/item/4001359997803.html?spm=a2g0o.productlist.0.0.66a455d3nDKV3C&algo_pvid=8a42017a-a473-43d4-8a81-0909d7b7d6f5&algo_expid=8a42017a-a473-43d4-8a81-0909d7b7d6f5-2&btsid=0b0a557216186992963926556e5a47&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_ I don't get why these are so expensive. Are these devices not just some beefed up potentiometers (or as suggested in this article https://electronics.stackexchange.com/questions/25426/can-i-use-a-potentiometer-to-reduce-sound-level-in-a-speaker) to adjust the volume for each channel? why so expensive? anyone can explain?

How is this possible without an analog to digital converter? can I use something like this with a raspberry pi and an analog mic?

interesting, i wonder how much cheaper it is to just buy these and hook it up to a bench supply yeah I already own one, which is why I though it might be a good idea

Can I simply use a desk bench to power usb headers and charge my phone that way? for example, my phone wants 5v and 3 amps, and my wall adapter only outputs 1amp, can I just plug the phone into a usb header and power the usb header with 5v and 3 amps, and have it charge faster? or will the wires for the usb header catch fire and burn?

Usually these SDRs are receivers, and not transmitters...

yes i am aware, i am just curious if there is an all in one transceiver that lets you transmit on these frequencies

Is there a single all in one radio transceiver/ham radio that I can use to transmit (with a license) on all of these frequencies? I can find ham radios that transmit on 2m and 80cm (VHF and UHF), and I can find CB radios, and I can also find others, but I can never find a radio that has all of these features in one. Does such a thing exist? I remember hearing on youtube about some sort of transmitter that had a lot of different bands, but I forgot the name of it. I think it was around 300$.

Is there an easy way to do this? Is there any way to do this?

hi i want to block xhr requests from my browser using ublock or another program like umatrix https://this.website.com/api/*/test/*/specificad/*/specifictrackerrequest the /specfictrackerrequest has a JSON request payload with content like... foobar1:[ { "event_type": "ad_tracker1", "client_timestamp": "..." } ], foobar2:[ { "event_type": "ad_tracker2", "client_timestamp": "..." } ], in order for the website to work properly, i need to ONLY block the requests with specific words for example, i want to block only the event types with "ad_tracker1" in them Is there any easy way to do this?

I cannot download it from the java archive because, as I said, it requires that I had already purchased the support version of java. When you try to download it, it requires that you sign in, and it checks to see if you had paid for it or not.

The java archive does not work, for reasons I just stated. I need java 7 to run a legacy version of a program which will not function on java 8.

Hello, I am looking for an old version of java (java 7). However, on java's website, it says that I can't download it unless I had already paid for the support version. Is there a copy anywhere available on the internet? https://java.com/en/download/faq/java_7.xml Internet archive doesn't seem to have it either...

Alright, thanks!

Hello I would like to develop an image recognition app for iOS (and later android) that can recognize the text of a street sign. How do I know which library to use? https://pub.dev/packages/tesseract_ocr This is supposedly developed by google and used in google translate. https://developers.google.com/ml-kit/vision/text-recognition/ios This one is made for recognizing street signs. However... I don't know what exactly is the best one. Are these two the same? This is what they describe it as on the firebase website: You can use ML Kit to recognize text in images, such as the text of a street sign. Does anyone on this website have any experience with OCR in ios or android apps?

I didn't see any such switch on my card. Oh well.

Ahhhh, it needs to have support for legacy bios, huh Yeah the BIOS is legacy BIOS. Where would I locate said switch? The GPU is: Sapphire Radeon R9 270X 4GB GDDR5 DVI-I/DVI-D/HDMI/DP Dual-X with Boost and OC Version PCI-Express Graphics Card 11217-04-20G

Is this something to do with the motherboard being OEM and only allowing certain graphics cards to be installed? The radeon graphics card is not detected by the motherboard, and I can assure you that this graphics card works. I tested it in another system. The graphics card turns on and spins, however there is no video. After 5 minutes it starts to spin at max speed and fluctuates depending on what programs I have open (Weird!) The video runs through the onboard graphics, even if I set the primary video adapter to PCI-E 16x in the BIOS. Whenever I would attempt to install drivers I would get these errors: https://www.amd.com/en/support/kb/faq/gpu-kb1603 https://www.amd.com/en/support/kb/faq/gpu-kb182 Any ideas? CPU: amd athlon ii x4 620 (this has no integrated graphics chip, so how am I getting onboard graphics???) GPU: Onboard graphics (speccy reports this as a nvidia geforce 9100???) Motherboard: Dell OEM motherboard Any ideas?

You seem to misunderstand It's not a virus, it's my torrent client opening a port using UPNP I want to understand what information I can gain from the outside based on the open port

It doesn't seem to have header contents when i do as you said. Unless I am making some sort of mistake

I can use wget to attempt to retrieve the file, but wget says there are no headers, and that there is a read error at a specific byte, or something like that. This is what the output looks like.

The garbled text obviously means something. I just want to know what.

You misunderstand my question. I want to understand what information can be gained from someone seeing this port open

Hello Let's say that I have a port open because of UPNP due to me torrenting a file. Is an attacker able to see any information about the torrent client from my ip address? I can browse to my local IP address and put in the UPNP port, and it shows me a bunch of garbled text. Any idea what this is?

I would like to listen to the DHT node of a specific torrent and gather information about the people who are seeding it, similar to what this website does: https://iknowwhatyoudownload.com/en/contacts/ How can I accomplish this?

I want to upload very large files to a server, but according to some convention (i dont remember which one, it might be multipart data), it requires me to calculate an md5 hash of the file before uploading, and then the server checks to see if the md5 sum i provided is correct. if not the upload is aborted is there any way I can "lie" to the server and tell it that it has the right hash? or somehow calculate the hash of the file incrementally as it is created? the file in question is created over a period of 12 hours, and data is added to it. is there any way to calculate the hash incrementally so the computer does not need to do it all at once? hashing a 50GB file is too much for the computer hosting it to do, so any support would be appreciated