User's Guide HDSP AES-32 - RME

14. Operation under GSIF (Gigasampler Interface)
The GSIF interface of the HDSP AES-32 allows direct operation with Gigastudio, with up to 16
channels, 96 kHz and 24 bit. GSIF 2.0 is also supported with both audio and MIDI.
Gigastudio requires a lot of the computer’s calculation power. An optimum performance is
achieved with a stand-alone GSIF PC. However, when using the Hammerfall DSP, the latency
is always the same as the one selected for ASIO operation. This can cause performance problems
on slower machines when using GSIF and ASIO at the same time.
Please note that the W2k/XP driver fully supports multi-client operation, including the combination
MME/ASIO. So for example Cubase, Gigastudio and Sonar can be used simultaneously,
provided each of these programs uses its own audio channels exclusively. For example ASIO
could use channels 1/2 and Gigastudio (with GSIF) channels 3/4 simultaneously, and so on.
Simultaneous operation of GSIF and ASIO requires to use different channels. For example,
if Cubase uses tracks 1/2 these tracks can not be used by Gigastudio.
Common Problems
Please note that Gigastudio is running unexpectedly in the background (thus blocking its assigned
audio channels), as soon as the Gigastudio MIDI ports are used – even when Gigastudio
itself hasn't been started. This causes a lot of confusion, as the driver seems to behave
completely buggy, and the user does not recognize the simple reason for it – for example simultaneous
operation of ASIO and GSIF on the same channels.
If Gigastudio starts up properly, loads gig files too, but won't play at all even when using the
virtual keyboard: Go to Hardware/Routing and select a valid MIDI input port. Note that blank is
not valid, but is.
User's Guide HDSP AES-32 © RME 23