User manual M-AUDIO LAGOON

[. . . ] LAGOON TM LAGOON TM MANUAL Table of Contents Introduction . . 26 FCC Class B / European CE Compliance WARNING: This equipment has been tested and found to comply with the limits for a CLASS B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions contained in this manual, may cause harmful interference to radio and television communications. [. . . ] This function is useful if you always want to be informed about the status of your LAGOON card. Clicking again will release the button and allow other windows to be displayed in front of the LAGOON Tools. General Page In the General page you can configure the basic functions of your LAGOON card according to your demands. Incorrect configuration can lead to distortion! 13 Mode The optical input and output can be configured separately either as S/PDIF or ADAT. This means mixing of both digital formats is possible as the LAGOON supports mixed mode operation. If you configure the input as ADAT, you may further activate a `Toshiba to Sharp' filter by clicking on Options and then on T2S. The T2S is intended to compensate for differences on the optical jacks manufactured by Toshiba and Sharp. If you have external equipment with optical jacks from Toshiba (like the LAGOON card), you will not need the T2S. If you have equipment that uses optical jacks from Sharp (like ADAT recorders), you should activate T2S (even if in most cases this is not necessary). Even if jitter does not have any influence on quality as long as you stay in the digital domain (e. g. if you are recording to a hard disk or to an external ADAT recorder), feeding external analog converters with an optical signal that has jitter usually worsens audio quality. If you do not know what kind of optical jack is used by your external equipment, turn off T2S. Remember: T2S only achieves a slight improvement, the LAGOON card will also work without T2S using Sharp-based devices. Warning: Always set the correct format at the output. sending an S/PDIF signal to an ADAT device) may result in noise signals with maximum level generated at the receiving device ! Clock Source Whenever your intention is to synchronize your application software to an ADAT recorder, ADAT Sync In is the choice. MIDI Machine Control, ADAT Time Code and ADAT Word Clock coming in from the ADAT Sync cable then will give the LAGOON card the ability of Time Code locked recording and playback. In this case, the ADAT recorder acts as a sync master and the LAGOON as the sync slave. For external equipment other than ADAT recorders choose Optical In as Clock source. If you want to have the LAGOON card acting as a clock master, choose LAGOON as Clock source. However, recording is only possible if your external device is clocked by the LAGOON card. Hint: For best performance using external analog converters, they should be chosen to be the master. If this is done, they generate the clock themselves, which is much more precise than feeding them with an external clock. In that case the right setting for Clock source will be Optical In. 14 Sample Rate If Optical In or ADAT Sync In is selected as Clock source, then there is no need for choosing a Sample rate. Configuring input or output as ADAT you may select among 44. 1 kHz and 48 kHz only (as only these frequencies fulfill the ADAT demands). [. . . ] The percentage of PCI-repeated transfers indicates if the PCI bus is behaving as it should. If you see a large number of PCI-repeated transfers (up to 10 percent and above), then perhaps you have an older mainboard in your PC that is not suitable for multimedia demands. 24 Troubleshooting Problem Optical output does not work Advice 1. Check if you connected the cable correctly: You should see a red light coming out of the optical cable that comes from the output of your LAGOON card. Check if you chose the correct output format (S/PDIF or ADAT) in the LAGOON Tools General page. [. . . ]