User manual ECHO DIGITAL AUDIO INDIGO WINDOWS

[. . . ] TM INDIGO TM INDIGO io TM INDIGO dj Owner's manual Version 2. 0 Windows ME/2000/XP 1 Important Safety Instructions WARNING: Listening to audio at high volumes over headphones can cause hearing damage. Please be careful to limit the volume level of your Indigo while listening through headphones. 1. Read Instructions - Be sure to read all of the safety and operating instructions before operating this product. Retain Instructions - The safety instructions and owner's manual should be retained for future reference. [. . . ] The Settings dialog gives you four different tabs to choose from: "Driver, " "Console, " "GSIF, " and "About. " Driver tab Here you can do two things: lock the sample rate and tell the driver whether or not to synchronize wave devices. Locking the sample rate Locking the sample rate can be very important, since Windows will frequently try to set the hardware to the highest supported sample rate. Then, Windows sample rate converts between that rate and the rate at which you are playing or recording. For instance, you may be trying to play at 44. 1 kHz, but Windows sets the hardware to 96 kHz and converts between the two. This is undesirable because you may be trying to do a digital transfer at a specific rate. In addition, sample rate conversion will reduce your audio quality and consume a great deal of CPU power. Locking the sample rate forces Windows to only use the hardware at the locked rate. In general, we recommend you set the sample rate first in your audio application. Then, lock that same rate within the console. Locking the sample rate is not really necessary for applications that do not use the legacy wave/MME interface (such as SONAR, Cubase, etc. ). 18 Synchronize wave devices This is mainly for developers who are using tools like Visual Basic or Delphi and want the inputs and outputs to be totally independent. Unless you have a good reason to turn it off, you should leave this switch on. Also, if you are running multiple applications on one card and you can't get it to work, try un-checking this box. Console tab The console pane lets you control settings that effect console sessions and the view of the console. Load last session when console starts Checking the box causes the last console session you had open to be loaded when you re-open the console. Auto-save session when console exits Checking this box automatically saves the currently opened console session when exiting the console. Always on top Checking this box causes the console to always remain in front of other windows, even when it is not in focus. 19 GSIF This window allows you to set the latency of GigaStudio in terms of samples. Select the value here that provides the best tradeoff between performance and reliability. These settings have no effect on any applications other than GigaStudio. About This displays the console version and driver version numbers. We feel that this is the single most exciting feature of the console. 20 Hot Keys There are a number of hot keys that can be used to control the console when it is the active window. F L S T A Fast-saves the current session Loads a session Saves a session Opens the settings dialog Toggles "Always on top" mode Ctrl-click a fader to set to 0 dB Ctrl-click a pan slider to set to center Shift-click a fader to negate the gang button After clicking on a fader: Home sets fader to 0 dB End sets fader to -40 dB Page Up raises fader 6 dB Page Down lowers fader 6 dB Up arrow raises fader 1 dB Down arrow lowers fader 1 dB 21 Listening to Indigo Your Indigo product was designed for use with high-end headphones. With the original Indigo you can hook up one set of headphones for private listening, or two sets simultaneously; you and a companion can enjoy watching a DVD movie together. If you are only using one set of headphones, just plug the headphones into either headphone jack on Indigo. If you are using two sets of headphones, you will obviously need to use both. The volume knob sets the volume for both sets of headphones. Note that if you use two different types of headphones simultaneously, you may experience different volume levels between the two sets. Indio dj also has two output jacks, but unlike the original Indigo, Indigo dj provides four independent channels for playback. [. . . ] A 0dBu signal has a voltage level of . 775 volts. Since . 775 is approximately 2dB less than 1. 0, 28 converting dBV levels into dBu levels is as simple as subtracting 2dB (2. 21 to be exact). Signals are also occasionally represented with units of dBm. This is an older unit that measures power instead of voltage levels with 0dBm representing 1 milliwatt. [. . . ]