Multicard Operation

OS X supports more than one audio device. Since 10.4 (Tiger) Core Audio offers the function Aggregate Devices, which allows to combine several devices into one, so that a multi-device operation is possible with any software.

The Fireface driver adds a number to each unit, so they are fully accessible in any multicard- capable software.

24. Hotline – Troubleshooting

The newest information can always be found on our website www.rme-audio.com, section Sup- port, Macintosh OS. A report about incompatible FireWire 800 controllers is found in the Tech Info FireWire 800 Hardware – Compatibility Problems.

The unit and drivers have been installed correctly, but playback does not work:

•Is Fireface 800 listed in the System Profiler? (Vendor ID 2613, 800 MB/s).

•Has Fireface been selected as current playback device in the audio application?

The 8 ADAT channels don’t seem to work

•The optical output ADAT2 has been switched to SPDIF. As can be seen in the block dia- gram, all channels and their assignments still exist, but the optical transmitter has been dis- connected from ADAT2 and is now fed from the SPDIF output (channels 11/12). The ADAT2 playback devices are still usable by routing and mixing them in TotalMix to other outputs.

Playback works, but record doesn’t:

•Check that there is a valid signal at the input. If so, the current sample frequency is dis- played in the Settings dialog.

•Check whether the Fireface 800 has been selected as recording device in the audio applica- tion.

•Check whether the sample frequency set in the audio application (‘Recording properties’ or similar) matches the input signal.

•Check that cables/devices have not been connected in a closed loop. If so, set the systems’s clock mode to ‘Master’.

Crackle during record or playback:

•Increase the number and size of buffers in the application.

•Try different cables (coaxial or optical) to rule out any defects here.

•Check that cables/devices have not been connected in a closed loop. If so, set the system’s clock mode to ‘Master’.

•Check the Settings dialog for displayed Errors.

Possible causes for a Fireface not working

•The FireWire cable is not, or not correctly inserted into the socket

•No power. After switching the Fireface on, at least the red Host error LED has to be lit.

Driver installation and Settings dialog/TotalMix work, but a playback or record is not possible

•While recognition and control of the device are low bandwidth applications, playback/record needs the full FireWire transmission performance. Therefore, defective FireWire cables with limited transmission bandwidth can cause such an error scheme.

50	User's Guide Fireface 800 © RME

Fireface 800 specifications

The Intel Fireface 800 is a powerful audio interface celebrated for its high-performance capabilities and versatility in both studio and live settings. Designed to cater to the needs of musicians, producers, and sound engineers, it stands out with its rich feature set and reliable technology.

One of the defining features of the Fireface 800 is its support for an impressive 26 input and 28 output channels. This extensive I/O configuration facilitates seamless integration with a wide variety of audio production setups, allowing users to record multiple instruments simultaneously or create complex routing scenarios. The unit also boasts top-notch analog and digital converters, ensuring pristine sound quality with a dynamic range that captures the nuances of any audio source.

In terms of connectivity, the Fireface 800 is equipped with both FireWire and USB ports, making it compatible with a range of computers and devices. The device utilizes the FireWire 800 protocol, which delivers higher data transfer rates compared to its predecessor. This efficient transfer capability is crucial for maintaining audio fidelity and reducing latency, making it an ideal choice for real-time monitoring and recording.

The Fireface 800 also features standalone operation capabilities, functioning independently of a computer when needed. This is particularly useful for live performances, where reliability and reduced setup complexity are essential. Users can easily connect microphones, instruments, and other equipment directly to the Fireface 800, making it a versatile tool for a variety of scenarios.

With its low-latency driver technology, the Fireface 800 ensures smooth performance even when handling demanding audio tasks. Its advanced ADAT and S/PDIF digital inputs and outputs provide further flexibility for connecting other gear, such as additional preamps and effects processors.

Another noteworthy characteristic of the Fireface 800 is its robust build quality. Designed for regular use in professional environments, the unit features a rugged metal chassis that can withstand the rigors of transport and daily use. This ensures longevity and consistent performance for audio professionals who depend on reliable equipment day in and day out.

In summary, the Intel Fireface 800 is a versatile and powerful audio interface that caters to a wide spectrum of audio production needs. With its extensive I/O capabilities, high-quality converters, reliable connectivity options, and robust design, it continues to be a popular choice among audio professionals striving for excellence in their work.