An example of the latter might be the interference caused by placing a microprocessor clock signal too close to your main signal line. Examples include capacitive loads on op-amps that cause peaking, parasitics in trace wiring or cables, thermal noise, thermal distortion, and last but not least, interference from stray H-fields and E-fields that distort your signal. In SCE, gargoyles are those elements lurking in your circuit that can wreak havoc, causing loss in signal quality and unwanted oscillations. It’s in the latter spirit that we use the term gargoyle. Others say the creatures were there to remind the lay people that evil lurks everywhere, and to be wary. Some say these creatures, these gargoyles, were placed to ward off evil spirits. The name gargoyle is historically associated with the decorative water spouts on the sides of early medieval churches that often came in the form of grotesque creatures carved as stone figures. (We do help you model local power isolation for your stages, but not the details of the power bus itself.) Why the name Gargoyle? Not included in the signal chain are all the ancillary bits of circuitry that help support the signal path - things like power supply regulation, protection circuitry, control switches, and the like. Included in this chain are things like a sensor, various filters, gain stages, and an A/D converter (ADC) - the sub-circuits you use to condition your signal for proper digitization. What is a Signal Chain?Ī signal chain is that part of your embedded system that comprises the main path of your signal, from input sensor to output A/D. No laborious net lists or models to concoct as you would have to do in Spice and other simulation tools. We also have a pre-built common interference model database that you can turn on with a click or two. Built-in equation worksheets and data entry GUI elements make it easy to enter and compute parameters. Just a few clicks here and there and boom! There’s your design. More importantly, SCE allows you to do your work quickly as well: Constructing a signal chain is easy. Differential signaling uses a minimum amount of equation solving. grounded as opposed to differential), no iterative equation-solving is needed under the hood. By using canned stages, the program can do its work very quickly and accurately - its internal modeling is fast and efficient and numerically stable and precise. You can mix and match these stages to build any number of varying designs. Instead, we provide a library of pre-built, canned stages, but with enough flexibility to let you model the core of many signal chain designs. SCE is not a general purpose circuit simulator. Linear frequency domain analysis is used to model those circuits and associated external interferences, and signal quality is determined in the presence of gargoyles. SCE works by representing a signal chain as a series of sub-circuits called stages. We call those problems gargoyles and we’ll talk about them in a bit. So what is SCE for? It’s there to help you explore analog signal chains and determine where problems may be lurking in those signal chains. We’ve decided to update the quick tour in the form of a blog post, so that you won’t have to download anything, and we can flesh out the documentation as times goes by. However, as the product has evolved, that document is now a little bit out of date. When the first preview of Signal Chain Explorer (SCE) was released, we included a PDF “quick tour” document with the product, which is also available for download on this site.
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Upgrading to Aloha Premium gets you a bunch of extras, including VPN country selection and the ability to protect other apps with the VPN. But the free version doesn't allow you to choose your location, it'll just automatically pick the closest server.Īs we say, however, Aloha only works on Android or iOS, making it null and void if you're after a Windows VPN or Mac VPN. And forget about annoying data limits, as you can use the service as much as you like. There's a real VPN underneath, not just a basic proxy, putting Aloha Browser ahead of the more limited proxy-based competition. (And of course, they can be stored securely, too.) Media handling? A built-in player streams just about anything, or you can download them as you watch. your browser tabs get the same passcode or fingerprint protection. Forget cookies and history as ads and trackers are blocked, too. Secure file manager? Check - quickly download your files to custom folders and protect them with passcodes or a fingerprint. The reality is Opera's VPN does add some welcome extra value to the app, and if you're happy with the VPN browsing basics, it may well be enough.Ĭan't choose a VPN location in the free versionĪloha Browser is an interesting Android and iOS browser with a free VPN and a stack of bonus privacy and media tools. Nothing wrong with a little extra privacy, of course, and you can't expect a free VPN to compete with a specialist commercial provider such as ExpressVPN. Its service is really more about privacy than anything else. But when you can't select a particular country, Opera isn't good for unblocking or as a streaming VPN. Speeds were still reasonable for us, at 30Mbps or more for US to UK connections. Pick one, and Opera chooses the best location at the time, which we found was as likely to be Mexico as United States. And although you're able to choose a location, Opera only gives you three very approximate locations: Americas, Europe and Asia. It's a secure proxy more than a true VPN, for instance. Messaging isn't some feeble custom app only available with Opera, for instance: you get Facebook Messenger, WhatsApp, Telegram and VKontakte already integrated in the Opera sidebar. These tools are often more capable than you'd expect, too. No need to install a single extension, the app provides ad-blocking, messaging, file-sharing and a simple VPN thrown in for free, no registration required. One of the ways Opera stands out from the crowd is with the range of tools bundled into its default setup. The Opera browser may not make the headlines so much these days, but it's still a great product, crammed with features, and with a reported 350+ million users worldwide. The best browsers with built-in VPN of 2023 in fullĬan't choose locations in a specific country
To make the service even more complicated, there are also two separate versions of the app on Google Play Store: Psiphon and Psiphon Pro. It’s too slow to stream video or play games online – though it might be fast enough to load basic web pages in some countries. Psiphon Free Proxy has awful speeds that hardly reach past 4Mbps on a local connection. Instead, you are randomly assigned a server, most likely in Singapore. In contrast, Psiphon VPN doesn’t even let you choose a server location. Psiphon Free Proxy lets you choose from servers in 27 countries on Android – but it doesn’t encrypt your web traffic, making it useless at hiding your browsing history. Confusingly, its free proxy is marginally better than the VPN version in certain categories. It includes two different tools: a circumvention proxy, and a VPN mode. It logs your IP address, fails to unblock censored websites in China, delivers dreadful speeds, leaks your DNS requests, and doesn’t include a kill switch feature. An intuitive app that allows you to surf the Internet securelyĪll in all, if you live in a geographic region where certain websites and online services are restricted due to various reasons, then Psiphon can help you bypass bans and access the desired content.Psiphon is a free censorship circumvention service that’s highly-regarded among internet freedom advocates such as Access Now.īut our testing found Psiphon to be a terrible VPN and proxy in almost every respect. It is necessary to mention that the L2TP/IPSec protocol may experience performance problems and can be incompatible with certain networking hardware and Internet connections. On a side note, some users have pointed out that they noticed their connection becoming slower whenever they enable the VPN client. However, if you want to use your own port numbers, you can make the modifications by defining the connection's details in the Settings window. You should know that the port numbers for these connections are selected randomly and automatically. In other words, if you switch to the virtual private network mode, then the applications using local SOCKS or HTTP protocols are redirected through the Psiphon network. The strong point of the application stems from the fact that it allows you to hide traffic by establishing a connection in VPN mode. The VPN client proxies your Internet traffic Therefore, in case you cannot connect via a certain specification, you can employ an alternative mechanism – SSH or SSH+ – to bypass the censor and access the content. The program relies on multiple protocols and transport system to enable you to navigate the Internet securely and in anonymity. Generally speaking, opting for the closest country usually provides the best results speed-wise. In fact, you can easily connect by specifying the server that you want to connect to. The utility acts as an anti-censorship toolĪfter a quick setup, you come face to face with a user-friendly and well-organized GUI that should not pose any issues regardless of your experience with configuring VPN services. Psiphon 3 is a light piece of software that enables you to hide your Internet activity from your ISP and other services that might be interested in monitoring your web navigation activity. I can't get either of those two methods to work in 10.11 El Capitan but they do work in earlier macOS versions. I don't think the ACPIPlatformExpert method (which I refer to as "darwin" in my pciutils) or the IOPCIBridge method (which I refer to as "darwin2" in my pciutils) check the debug value, so you could use different values such as debug=0100 and it should still work. It probably would have been best for the kext and the framework or library to use a common header for the enumerations and structures used by both. So there could be a problem if a framework or library or executable doesn't match the kext and tries to use one of kReadCpuID, kReadMem, kWriteMSR. KReadIO kWriteIO kPrepareMap kReadMSR kReadCpuID kReadMem kWriteMSR They have the following where kWriteMSR was moved to the end of the list: warexify-directhw/DirectHW/DirectHW.hppīut notice that that list is missing DirectHW.c for some of those projects. somestupidgirl-DirectHW-BigSur/DirectHW/DirectHW.hpp somestupidgirl-DirectHW-BigSur/DirectHW/DirectHW.c Jichao-directhw/macosx/DirectHW/DirectHW.hpp Jichao-directhw/macosx/DirectHW/DirectHW.c KReadIO kWriteIO kPrepareMap kReadMSR kWriteMSR kReadCpuID kReadMem Then kReadCpuID and kReadMem were added by Jichao like this: vampirecat35-DirectHW-BigSur/DirectHW/DirectHW.hpp vampirecat35-DirectHW-BigSur/DirectHW/DirectHW.c startergo-DirectHW-BigSur/DirectHW/DirectHW.hpp startergo-DirectHW-BigSur/DirectHW/DirectHW.c mrAlexis-directhw/macosx/DirectHW/DirectHW.hpp mrAlexis-directhw/macosx/DirectHW/DirectHW.c mmalchuk-directhw/macosx/DirectHW/DirectHW.hpp mmalchuk-directhw/macosx/DirectHW/DirectHW.c flashrom-directhw/macosx/DirectHW/DirectHW.hpp flashrom-directhw/macosx/DirectHW/DirectHW.c dac456-DirectHW/macosx/DirectHW/DirectHW.hpp dac456-DirectHW/macosx/DirectHW/DirectHW.c coreboot-directhw/macosx/DirectHW/DirectHW.hpp coreboot-directhw/macosx/DirectHW/DirectHW.c KReadIO kWriteIO kPrepareMap kReadMSR kWriteMSR Originally, the list of user client methods was this: I've noticed a bug in that line of DirectHW forks. Some Intel Macs may also have multiple IOPCIHostBridge but it seems that in some (all?) cases (such as X299 hackintosh) the PCI bus numbers are divided among them so they the don't have duplicate PCI bus numbers and you can access all the bus numbers from one IOPCIBridge. PowerPC Macs also have multiple IOPCIHostBridge. Apple Silicon Macs have multiple IOPCIHostBridge. The darwin3 access method will be superior to the intel-conf1 method since it will be able to access all the PCIe config space registers (000-FFF) instead of just the PCI config space registers (00-FF) and it will work with multiple IOPCIHostBridge. My pciutils fork will have all the access methods (darwin for ACPIPlatformExpert darwin2 for IOPCIBridge darwin3 for my IOPCIBridge in DirectHW intel-conf1 which uses the existing DirectHW code). Hopefully this access method can be used for ppc (macOS 10.4, 10.5) and arm64e (since macOS 11) by pciutils. This new access method (since macOS 10.10) replaces the ACPIPlatformExpert access method that Apple previously had (since macOS 10.6). To DirectHW I'm adding the IOPCIBridge access method that Apple created in IOPCIFamily for pciutils. It looks like it might have the best chance to work on ppc and arm64e and i386 and x86_64. It has the vampirecat35 fork as upstream. It appears to be the fork that was most recently worked on. Thunderbolt Bus: MacBook Air, Apple Inc., 27.I'm working on the fork from warexify. USB Device: Bluetooth USB Host Controller Serial ATA Device: APPLE SSD SM0128G, 121.33 GB Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x02FE, -ĪirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x117), Broadcom BCM43xx 1.0 (7.77.61.3 AirPortDriverBrcmNIC-1305.12)īluetooth: Version 6.0.14d13, 3 services, 27 devices, 1 incoming serial ports Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x02FE,. Graphics: kHW_IntelHDGraphics6000Item, Intel HD Graphics 6000, spdisplays_builtin MALLOC_NANO (reserved) 384.0M 1 reserved VM address space (unallocated) Termination Reason: Namespace OBJC, Code 0x1 Path: /Applications/OBS.app/Contents/MacOS/obsĪnonymous UUID: 277456C2-FED4-B1C8-6C11-A9CCD9DF29FC I am a musician and not particularly tech advanced. Have tried re-installing OBS to no effect as well. This has been an issue through various IOS updates. |
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