Mixer Toolbar Issues - Audacity Wiki. Peter 1. 5Mar. 14: To. Do- 2 Potentially this page could be deprecated? Gale wrote of this page in an email on 1. Mar. 14: . Perhaps that means we just leave the page . My impression is that if we remove the information that no longer applies, then the . It is some thing that imo we should actively discourage (as Gale does on the Forum). As Steve says, the #vistacp and #xpcp anchors here are linked to every day to give support for current Audacity. My suggestion is that this page becomes a Windows- only page called . Mixer Toolbar issues and input device selection. In current Audacity, all available inputs are selected in Device Toolbar or Devices Preferences.I will need to go though the page above the Windows Control Panel sections and see what if anything to retain (so please don't just delete that content). The #xpcp anchor is mandatory while Audacity officially supports XP. My Forum dissuasions about it are only about security, nothing else. How to install CSR Bluetooth device drivers and enable Bluetooth headset profile (HSP) on Microsoft Windows 7 / Vista / Server 2008 32- and 64-bit (x86 x64). Call quality guide (Windows desktop) Having problems with your Skype calls? There’s probably an issue with the internet connection (yours or the person you’re. The essential tech news of the moment. Technology's news site of record. Not for dummies. The Mac section is outdated and could be moved to Mac OS X or whatever becomes of that. I've rewritten the Linux section to be relevant to current Audacity, but Steve can check it over. That Linux section can then be moved to Linux Issues. Microphone isn't working (only playback sounds play through it) How do i make my external microphone work for my window vista computer; My computer does not recognise. Plantronics Hub for Windows/Mac, part of the Plantronics Spokes software portfolio, is a client application that allows end users to control the settings on their. Peter 1. 0Jun. 14: I transferred the Mac section to Mac OS X as Gale suggests. The purpose of the selector (as with Device Toolbar) was to link to the current mixing device (assuming this device offers a choice of input sources) and thus save the user going through a series of system menus to choose the source. Drivers are a big issue on Windows machines, and it often happens that machines purchased new will only be supplied with generic Microsoft drivers. This may prevent the audio device linking properly to the system mixer, so you may end up always recording from line- in, or cannot apparently record at all (whatever input source you choose). Another issue may be that you won't see all the inputs that your device potentially offers. Find out what inputs are available and ensure that the playback and recording devices are explicitly set to the correct device you want to use. For example you may have multiple sound devices such as built- in sound and an external USB device, so you need to choose between them. If you are on Windows and experiencing problems, choose your sound device explicitly, not Microsoft Sound Mapper (which is intended to map to the currently selected default Windows sound device, but may not always do so correctly). Where this is the case, these inputs are treated as separate recording devices on Windows (for example, . These inputs can be most conveniently selected in Device Toolbar in current Audacity but in legacy Audacity before 1. Audio I/O or Devices tab of Preferences and not in the Mixer Toolbar selector which will be greyed out. This is normal, and just means that input choices must be made in the device itself, or in any control software that comes with it. Examples of devices which will normally not allow input selection in Audacity are the Griffin i. Mic, USB turntables or USB cassette decks and a wide variety of USB and Firewire mixers and interfaces. If you are on Mac or Linux and the sound device is already being used by another application, Audacity may not be able to access it for recording. As a result, Device Toolbar, Preferences or the legacy Mixer Toolbar input selector may be empty of devices. Generally, this is not a problem on Windows as long as you choose MME host in Audacity, though issues with some applications are known. For example, speech recognition in Word, Skype or the Fraps screen capture software may prevent other applications from using the sound device to record from a microphone. In these cases you need to select the recording settings and levels using the custom mixer application shipped with the soundcard.
Recording should work as normal with the card however. As a result, in legacy Audacity 1. Mixer Toolbar input selector will be always be greyed out by default. To do this, right- click over audacity. Windows Explorer, then click Properties, then the . This isn't a generally recommended solution. To enable this toolbar, click . Here is an example of recording inputs in Preferences for two different physical devices (an inbuilt sound device and an external USB soundcard). Microphone: Realtek HD Device. Line- In: Realtek HD Device. Microphone: USB Audio. Line- In: USB Audio. Stereo Mix: USB Audio. If selecting a particular input does not work, or you don't see the input you want, try selecting it in the Windows Control Panel (see the next section below). The exact name (and whether you have such an input) depends on the drivers of your sound device. Worse, this input source is often hidden by default in the system mixer. Try launching the sound device control panel from the Windows Control Panel or the system tray (by the clock). If you see a volume control for Stereo Mix, try clicking to select it. Confusingly, some Real. Tek devices . If you don't see Stereo Mix, click the wrench icon and enable Stereo Mix in the dialog that pops up. In some Real. Tek versions the option to check is . You should now see a volume control for Stereo Mix. Remember to select or unmute it as above. See this Forum topic for more help with Real. Tek. This is a known issue with Lenovo Thinkpad laptops, but sometimes editing the driver files can enable stereo mix. Alternative suggestions follow below. It records only to WAV, direct from the application producing the sound, without the need for a sound device that can record computer playback. Internet streams can optionally be captured at faster than real time rates (monitoring is not available in that mode). Windows 1. 0 / Windows 8 / Windows 7 / Windows Vista On Windows 1. Windows 8, Windows 7 and Windows Vista, the quickest way to access the mixer is to right- click over the speaker icon in the . This means they are invisible in that tab, and also invisible to recording applications like Audacity. So you need to make them visible, then enable and make default the main one you want to use, following the steps below. Hz is a safe choice if you are unsure. Look for and turn off all sound enhancements and any other sound effects unless you need them. To do this, right- click over . This should prevent unwanted playback volume changes when recording computer playback or when recording over playback of another track. If the right- click menu also shows . Make sure again that no unwanted effects are being applied. If you choose . Alternative settings if crackly recording or playback occurs, or if recordings made while playing other tracks are not synchronized: (requires Audacity 1. Open Windows . If you cannot see the input you're looking for, click . Select your sound device in the Mixer Device panel, and ensure all the boxes in the window below are checked. Click OK. You will need to disable applications or services that are using the device before Audacity can access it, or share the device among applications using JACK. It may be possible under OSS to share the sound device with another application if you use the wrapper provided by a. Rts and launch Audacity using. Note: some users report recording issues when using the a. Rts wrapper. Only default or sysdefault devices available If only . You can choose then the tab then the . See Compiling Audacity for Beginners for help. Use the system mixer instead to adjust the input volume of the device. On systems without Pulse. Audio installed, you can use ALSAmixer.
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Your chance to test drive the release candidate is now running thin, in fact, if you haven’t tried the new OS until now you are better off postponing your plans for a week and installing the real thing. The final version of Windows 7 has already been sent to partners and is scheduled to debut publicly later this week on October 2. Thankfully, setting up a dual boot configuration is both easy and practical. If you’re looking for a quick and dirty, yet thorough how- to on getting Windows 7 to run alongside your installation of XP or Vista, read on. How to Dual Boot Linux on Your PC. Linux is often best installed in a dual-boot system. This allows you to run Linux on your actual hardware. The Desktop Files Dual Booting with Windows XP and Windows. There are two ways to put down the Windows Vista boot sector—the piece of boot code that tells the.
Dual Boot Vista N XpsWe’re going to assume that you either already have a Windows 7 DVD, or have an ISO file. If the former is true, feel free to skip ahead to Step 2. Our personal favorite is Img. Burn, but to name some others: Burn. Free CD and DVD, CDBurner. XP and Ashampoo Burning Studio Free. Even though this guide is absolutely harmless, random software anomalies can and do occur – do yourself a favor and backup your precious data before proceeding. Most of you who are reading this will probably only have one existing partition, dedicated to the operating system you’re currently using. While Windows Vista has built- in utilities to resize active partitions, XP does not, and thus we must resort to using a third party application (GParted). You can also use a third- party tool called GParted, which we are recommending to Windows XP users (see below). You can skip to the XP section and follow the exact same directions if you prefer the GParted route for any reason. A window titled “Disk Management” should open displaying basic information about the drives attached to your PC. The recommended minimum partition size for Windows 7 is 1. GB, so enter a figure of that size or larger and then hit “Shrink”. With that, you can move on to Step 3. Running Multiple Operating Systems: Dual Booting, Partitions & File Systems. Virtual Environments . You should understand the risks of using such operating systems online. Why Multiple OSs? There are many reasons for running either a dual- boot or multi- OS computer: You can reduce the space dedicated to hardware in your working environment. Gamers don't want to endanger their business installation. Web designers want to view their sites in various OSs using native browsers. IT staff may need to be able to work with several versions of Windows. Windows users want to experiment with Linux, but need to retain Windows. Drivers for legacy hardware are unavailable (e. This page discusses options for doing that. Terminology. I'm going to use the following terms: Dual boot: running more than a single version of the same operating system (i. Windows 7 and Windows 8)Multi- OS: running more than a single operating system (OS) on a computer (i. Windows 7 and Linux). Return to top. Virtual Environments. Before you attempt to install a dual- or multi- boot environment, you might want to try out one of the software solutions that run alternative software in a separate “virtual environments.”Hardware has improved to where it is now possible to share resources with another separate OS running “virtually” on top of your current OS. There are several options to run Windows programs on other operating systems and vice versa. Be sure you don't opt for a solution that is too complex or expensive and that your computer can meet the performance requirements. Virtual Environment Software. Windows. Mac. Parallels allows Mac users to run Windows applications. Linux. WINE allows users to run Windows applications on Linux, BSD, Solaris and Mac OS X. Tutorials & Reviews. Return to top. Dual Boot. Dual booting has the advantage that you're running both OSs natively (i. Boot Camp creates a suitable partition for the Windows installation and the necessary Windows drivers for the installation. Have a look at this guide to see the process: To remove Windows from your Mac you need only remove Boot Camp. Everything is pretty much automatic. However, if you wish to restore or repair a Boot Camp partition, you might need more help. Using Boot Camp without an Optical Drive. One of the “gotchas” when installing Windows using Boot Camp is if you replace your Mac's optical drive with a second hard drive is that the system may not recognize an external drive. I recommend creating an ISO image from a Windows installation DVD rather than trying to make an external optical drive work. The solution that worked for me was a post by Laas, Installing Windows 7 on Mac. Book Pro without Super. Drive particularly using the comments by Jorge. It required the use of the r. EFInd Boot Manager and took some experimentation to get it to work. I didn't attempt the hacks to the info. Jorge's instructions were for Windows 8. I've modified the instructions to install Windows 7 Pro using r. EFInd (a fork of r. EFIt) on OS X Maverick and to make them clearer: Install r. EFInd then restart your Mac. Let OS X load one time (to be certain that r. EFInd loads). Reboot again. You should see r. EFInd (if you don't, press ALT on the reboot cycle). Choose EFI Windows (or the name given to your Boot Camp partition). Windows should start. Reboot again and choose other partition until you find the right one.) Let windows start. At some stage, Windows will ask you to select a partition for it to install, choose the Boot Camp partition (the one you made earlier) and don't format it. Click Next. Windows will install without any problems. It may reboot several times — be sure to let windows reboot on the right partition. Since you have r. EFInd, you don't have to press ALT all the time. Don't bother with the repair disk. Configure Windows has you like. Install Boot Camp drivers. Reboot. Choose the Mac partition. Login. Go to your Root folder and rename folder EFI, to EFI. Select Windows. Start using Windows 7. You're done (except for the remaining setup for Windows including updates). Let me know if you have any problems with these instructions. I've not attempted to recreate the process since (let sleeping dogs lie). Dual Booting Windows Versions. Try Compatibility Mode First. Windows 7 has the ability to run in compatibility mode as far back as Windows 9. You might want to give this a try before attempting to create a dual- boot install. Don't Mix Windows Versions. When installing a second version of Windows, use separate partitions for each (I'd recommend separate hard drives, if possible) so that the resources are not intermingled. Installing a second version of Windows in the same partition will mix the contents of the two versions of Windows, possibly overwriting key files. User Files Handled Differently. Windows 7 and Vista have a very different way of handling many files than XP does, including “user” folders such as My Documents. Windows 9. 5 introduced My Documents, but it was located in C: \My Documents. Windows XP introduced multi- user installations as a default, moving My Documents to C: \Documents and Settings\. Instead of My Documents on the desktop, the User folder appeared, containing My Documents as well as moving the My Music, My Pictures, etc. The All Users became Public. Other important changes made in Vista (and Windows 7) were to move the location of the Application Data folders and to reclassify them under Local, Local. Low and Roaming (with the majority of application using the Roaming to allow sharing between computers as well as between users). Sharing With Different Windows Versions. Windows XP and later should be run on the NTFS file system, but if you want to be able to see the information on these partitions from Windows 9x you'll need to use Fat. Windows 8, 8. 1 and 1. NTFS, but Windows 1. Re. FS, which has several advantages including error correction but can still view files on NTFS. There are great advantages to NTFS, including the ability to handle much larger drives, automatic compression and improved file features, such as private folders. Unless you need to see and dynamically alter the information on the Windows 7 or XP partition when booting to the Windows 9x installation, I'd use NTFS. If you choose NTFS, Windows 9x will be unable to . You'll have to share documents with one of several methods, including: A common drive or partition formatted with the FAT3. This can be either an internal drive or an external USB drive. A USB thumb- drive (you'll need to install drivers for Windows 9. SE). This works if you seldom share information. Obviously, this has limitations if you are going to be continually sharing dynamic information and it will be impossible to share programs. Windows 9x Least Flexible. Windows 9x demands the C: primarypartitions) and is a predatory operating system that will try to write data into any drive or partition that it can read (FAT1. It will offer to format anything it cannot read (such as NTFS or HPFS) if it can . If your programs need direct DOS hardware access, you can create serious issues in dual- booting newer versions of Windows. A Virtual Environment install might be a better solution. Can't Share Program Installations. You will need to install the programs in both versions of Windows, so that the correct information is written into the Windows Registry for each operating system, even if you are sharing the program data. Hyper. OSHyper. OS gives you instantly available spare cloned Windows systems which you can switch to with a double click. The Geek version runs up to 1. Windows systems from your boot drive and up to 1. The Super. Geek version upgrades this to 2. Each active partition becomes the C: drive (required by Windows base files and some other software). Read the site's description for more information. Dual Booting Resources. Return to top. The Multi- OS Environment. The multi- operating system environment has a single computer booting more than one (and usually more than two) operating systems. Unlike booting between different versions of Windows, there tends to be much more that is different than simply the operating system. File systems are often (but not always) incompatible. Hardware Options. You can use various hardware devices to enable you to boot to alternative operating systems. The advantage is that you don't have to worry about one operating system damaging the information or file systems in another operating system's partition. The disadvantage is that it is impossible to share data and/or programs because they are physically separated. Removable Drive Bays. The removable drive bay is an option that is probably not going to work on newer systems but might be suitable if you're running Pentium- era computers. Designed for older ATA drives, the idea was that can be easily swapped for your various OSs. You should be sure to purchase the same brand and model of drawer if you wish to leave the hard drives in the bays and ensure that the correct drawer is purchased if you are running ATA6. As USB throughput improved, these drawer systems became obsolete. Removable USB Drives. Modern USB connections and drives have improved greatly and computers can boot from USB drives. USB 3 throughput is very fast, making this option more realistic. Booting to a USB device might require you to make changes in the BIOS or your computer might provide quick access to a boot priority like pressing a function key like F1. Swapping Cables. If your need for changes is infrequent, you might consider simply swapping the cables inside your computer when you need to switch operating systems. This requires you to open the computer case and is not an option for laptops, but the only cost is the price of the additional hard drive(s). Note that newer computers continue to have power when they are shut down. Be sure to remove the power cable from the computer and ensure external devices and the monitor are turned off (a common power bar works great for this). 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For underwater power cables, HVDC avoids the heavy currents required to charge and discharge the cable capacitance each cycle. For shorter distances, the higher cost of DC conversion equipment compared to an AC system may still be justified, due to other benefits of direct current links. HVDC allows power transmission between unsynchronized AC transmission systems. Since the power flow through an HVDC link can be controlled independently of the phase angle between source and load, it can stabilize a network against disturbances due to rapid changes in power. HVDC also allows transfer of power between grid systems running at different frequencies, such as 5. DP50V5A DC numerical control regulated power supply is an adjustable step down module that integrates analog integration and numerical control. DEMOBOARD TLE6389-2G V50 DC/DC Converter This application board enables you to test the performance of the TLE6389-2GV50 step down converter. The board shows a. Hz and 6. 0 Hz. This improves the stability and economy of each grid, by allowing exchange of power between incompatible networks. The modern form of HVDC transmission uses technology developed extensively in the 1. Sweden (ASEA) and in Germany. Early commercial installations included one in the Soviet Union in 1. Moscow and Kashira, and a 1. V, 2. 0 MW system between Gotland and mainland Sweden in 1. The length of the DC line is 2,3. For names, see also the annotated version. SKU Image US Amazon UK Amazon DE Amazon Output Adjustable Constant Current MIN. Input Voltage MAX. Input Voltage MIN. Output Voltage MAX. Output Voltage. Linear Technology DC934 Demonstration Board. LTC3335: Nanopower Buck-Boost DC/DC with Integrated Coulomb Counter @verbatim This sketch demonstrates the LTC3335. High voltage transmission. For a given quantity of power transmitted, doubling the voltage will deliver the same power at only half the current. Since the power lost as heat in the wires is proportional to the wires' resistance as a share of the total resistance, and doubling voltage allows for the quadrupling of non- transmission resistance without losing power, doubling the voltage reduces the line losses per unit of electrical power delivered by approximately a factor of 4. While power lost in transmission can also be reduced by increasing the conductor size, larger conductors are heavier and more expensive. High voltage cannot readily be used for lighting or motors, so transmission- level voltages must be reduced for end- use equipment. Powershot Posts. Feel free to Add to our current collection. Check the Botzilla Journal too! If you want to say how much you appreciate this site, press here.Www.siemens.com/press/x-win High Technology: A high-voltage direct current (HVDC) transmission link consists primarily of a converter station, in which the AC voltage. Car & Deep Cycle battery hyperlinks to associated product information such as chargers, alternators, isolators, inverters, test equipment, etc. ICStation XL6009 Power Module 4.5V-32V to 5V-52V DC-DC Converter and other Power Module on sale, Arduino, Robotics, Raspberry Pi Zero, ESP8266/ESP32, Inverter, DIY. Transformers are used to change the voltage levels in alternating current (AC) transmission circuits. Because transformers made voltage changes practical, and AC generators were more efficient than those using DC, AC became dominant after the introduction of practical systems of distribution in Europe in 1. This system used series- connected motor- generator sets to increase the voltage. Each set was insulated from electrical ground and driven by insulated shafts from a prime mover. The transmission line was operated in a 'constant current' mode, with up to 5,0. This system transmitted 6. W at 1. 4 k. V DC over a distance of 1. This system used eight series- connected generators with dual commutators for a total voltage of 1. Fifteen Thury systems were in operation by 1. Various other electromechanical devices were tested during the first half of the 2. Starting in 1. 93. General Electric tested mercury- vapor valves and a 1. V DC transmission line, which also served to convert 4. Hz generation to serve 6. Hz loads, at Mechanicville, New York. In 1. 94. 1, a 6. MW, . The equipment was moved to the Soviet Union and was put into service there as the Moscow–Kashira HVDC system. In HVDC applications, the AC power system itself provides the means of commutating the current to another valve in the converter. Consequently, converters built with mercury arc valves are known as line- commutated converters (LCC). LCCs require rotating synchronous machines in the AC systems to which they are connected, making power transmission into a passive load impossible. Mercury arc valves were common in systems designed up to 1. HVDC system (the Nelson River Bipole 1 system in Manitoba, Canada) having been put into service in stages between 1. The last HVDC system to use mercury arc valves was the Inter- Island HVDC link between the North and South Islands of New Zealand, which used them on one of its two poles. The mercury arc valves were decommissioned on 1 August 2. Thyristor valves. Like mercury arc valves, thyristors require connection to an external AC circuit in HVDC applications to turn them on and off. HVDC using thyristor valves is also known as line- commutated converter (LCC) HVDC. Development of thyristor valves for HVDC began in the late 1. The first complete HVDC scheme based on thyristor valves was the Eel River scheme in Canada, which was built by General Electric and went into service in 1. On March 1. 5, 1. MW thyristor based direct current connection between Cabora Bassa and Johannesburg (1,4. The conversion equipment was built in 1. Allgemeine Elektricit. This results from requiring the AC circuit to turn off the thyristor current and the need for a short period of 'reverse' voltage to effect the turn- off (turn- off time). An attempt to address these limitations is the Capacitor- Commutated Converter (CCC) which has been used in a small number of HVDC systems. The CCC differs from a conventional HVDC system in that it has series capacitors inserted into the AC line connections, either on the primary or secondary side of the converter transformer. The series capacitors partially offset the commutating inductance of the converter and help to reduce fault currents. This also allows a smaller extinction angle to be used with a converter/inverter, reducing the need for reactive power support. However, CCC has remained only a niche application because of the advent of voltage- source converters (VSC) which completely eliminate the need for an extinction (turn- off) time. Voltage- source converters (VSC). By the end of 2. 01. HVDC market. The development of higher rated insulated- gate bipolar transistors (IGBTs), gate turn- off thyristors (GTOs) and integrated gate- commutated thyristors (IGCTs), has made smaller HVDC systems economical. The manufacturer ABB Group calls this concept HVDC Light, while Siemens calls a similar concept HVDC PLUS (Power Link Universal System) and Alstom call their product based upon this technology HVDC Max. Sine. They have extended the use of HVDC down to blocks as small as a few tens of megawatts and lines as short as a few score kilometres of overhead line. There are several different variants of VSC technology: most installations built until 2. Current installations, including HVDC PLUS and HVDC Max. Sine, are based on variants of a converter called a Modular Multi- Level Converter (MMC). Multilevel converters have the advantage that they allow harmonic filtering equipment to be reduced or eliminated altogether. By way of comparison, AC harmonic filters of typical line- commutated converter stations cover nearly half of the converter station area. With time, voltage- source converter systems will probably replace all installed simple thyristor- based systems, including the highest DC power transmission applications. HVDC conversion equipment at the terminal stations is costly, but the total DC transmission line costs over long distances are lower than AC line of the same distance. HVDC requires less conductor per unit distance than an AC line, as there is no need to support three phases and there is no skin effect. Depending on voltage level and construction details, HVDC transmission losses are quoted as about 3. AC lines, at the same voltage levels. HVDC can transfer power between separate AC networks. HVDC powerflow between separate AC systems can be automatically controlled to support either network during transient conditions, but without the risk that a major power system collapse in one network will lead to a collapse in the second. HVDC improves on system controllability, with at least one HVDC link embedded in an AC grid—in the deregulated environment, the controllability feature is particularly useful where control of energy trading is needed. The combined economic and technical benefits of HVDC transmission can make it a suitable choice for connecting electricity sources that are located far away from the main users. Specific applications where HVDC transmission technology provides benefits include: Undersea cables transmission schemes (e. Nor. Ned cable between Norway and the Netherlands. Since such transfer can occur in either direction, it increases the stability of both networks by allowing them to draw on each other in emergencies and failures. Stabilizing a predominantly AC power- grid, without increasing fault levels (prospective short circuit current). Integration of renewable resources such as wind into the main transmission grid. HVDC overhead lines for onshore wind integration projects and HVDC cables for offshore projects have been proposed in North America and Europe for both technical and economic reasons. DC grids with multiple voltage- source converters (VSCs) are one of the technical solutions for pooling offshore wind energy and transmitting it to load centers located far away onshore. The geometry is that of a long co- axial capacitor. The total capacitance increases with the length of the cable. This capacitance is in a parallel circuit with the load. Where alternating current is used for cable transmission, additional current must flow in the cable to charge this cable capacitance. This extra current flow causes added energy loss via dissipation of heat in the conductors of the cable, raising its temperature. Additional energy losses also occur as a result of dielectric losses in the cable insulation. However, if direct current is used, the cable capacitance is charged only when the cable is first energized or if the voltage level changes; there is no additional current required. For a sufficiently long AC cable, the entire current- carrying ability of the conductor would be needed to supply the charging current alone. This cable capacitance issue limits the length and power carrying ability of AC powered cables. DC powered cables are limited only by their temperature rise and Ohm's Law. |
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