User manual M-AUDIO FAST TRACK ULTRA 8R

[. . . ] Fast Track Ultra 8R Rack-mountable 8 x 8 USB 2. 0 Interface with MX Core DSP Technology English User Guide Fast Track Ultra 8R User Guide 1 1 Introduction Thanks for choosing M-Audio Fast Track Ultra 8R. Fast Track Ultra 8R is a professional, high-quality audio and MIDI interface for your Windows or Macintosh laptop or desktop computer. Using the convenience and dependability of a USB 2. 0 connection, Fast Track Ultra 8R provides your computer with an exceptionally flexible audio interface that will handle virtually any recording task with ease. Fast Track Ultra 8R delivers high-resolution 24-bit audio to and from your computer at sampling rates up to 96kHz. [. . . ] NOTE: Only Monitor outputs 1/2 and 3/4 can utilize the Fast Track Ultra 8R's internal DSP. Therefore the Monitor mixer tabs for outputs 5/6 and 7/8 do not provide Bypass buttons. Fast Track Ultra 8R Settings Tab Sample Rate Settings User Guide 13 The "Sample Rate" drop-down menu lets you select the current sample rate for the internal clock of Fast Track Ultra 8R. Available sample rates are 44. 1, 48, 88. 2 and 96 kHz. Note that this drop-down menu is disabled if Fast Track Ultra 8R is set to sync to external clock. External Signal Status This box displays messages indicating the current synchronization status: If the status in the Settings tab (see the Clock section below) is set to "Internal, " the Signal Status will display this message: "Because the sync source is internal, the sample rate may be adjusted and external digital signals will be ignored. " You will be able to adjust the sample rate using the Sample Rate drop-down menu. It is recommended that you do not change the sample rate from the Settings tab while your DAW application is running, as this can cause some applications to exhibit unexpected behavior. If the status in the Settings tab (see the Clock section below) is set to "external, " and a valid digital signal is received at the S/PDIF input, the Signal Status panel will display this message: "Because the sync source is external, the sample rate may not be adjusted. However, since there is a valid external digital signal, the sample rate will automatically match it. " The Sample Rate is determined by the external device and cannot be changed from the Fast Track Ultra 8R Control Panel. Because of this, the Sample Rate drop-down menu will display the incoming sample rate, but will not allow changes. If the status in the Clock panel (see the Clock section below) is set to "External" but no valid digital signal is received at Fast Track Ultra 8R's S/PDIF input, the Signal Status will display this message: "Because the sync source is external, the sample rate my not be adjusted. While there is no valid external signal, the sample rate will remain 44. 1 kHz. . " Fast Track Ultra 8R Sync Source User Guide 14 This drop down menu lets you select the clock source of Fast Track Ultra 8R. To synchronize the interface to an external digital source (i. e. , the incoming S/PDIF signal), select the "External" setting. To synchronize Fast Track Ultra 8R to its own internal clock, select "Internal. " Please see the box below for more information about the digital input and external clocking. About External Clock Digital audio is based on samples. For example, a digital recording at a sample rate of 44. 1 kHz contains 44, 100 samples, or digital "snapshots, " per second. Each digital audio device has its own internal clock, or crystal, to generate and control the exact rate and timing of these samples during every second. In order for two or more digital audio devices to function together, only one of their clocks can be in control (the Master), while any other devices must be synchronized to that device's clock (the Slave). Otherwise, the resulting audio will sound distorted, play at the wrong speed, or have clicks and pops. You can set Fast Track Ultra 8R to run as the Word Clock Master ("Internal") when digitally connected to other digital audio devices: Connect the S/PDIF output of Fast Track Ultra 8R to the S/PDIF input of another digital audio device and configure that device to synchronize to its S/PDIF input (making it the word clock Slave). Alternatively, you can set another device to act as the Word Clock Master and designate Fast Track Ultra 8R to run as the word clock slave: Connect the S/PDIF output of a 3rd party audio device to the S/PDIF input of Fast Track Ultra 8R. Select "External" as the clock source setting from within the Fast Track Ultra 8R Control Panel. Fast Track Ultra 8R now runs in sync to the digital S/PDIF signal generated by the other device. [. . . ] Make sure your inputs are routed correctly by verifying that your application is receiving audio signal. Make sure your outputs are routed correctly so that your signal is sent to your headphones, amp and/or monitors. · · · · · Check your audio connections and cables to make sure everything is plugged in correctly. Check the LED Level Meters 4 to see if input signal is present. [. . . ]