User’s Guide HDSP System RPM
© RME
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14. Operation under GSIF (Gigasampler Interface)
The GSIF interface of the Hammerfall DSP allows direct operation with Gigastudio, with up to
12 channels, 96 kHz and 24 bit.
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.
Thanks to full compatibility to GSIF 2.0, the RPM can also be used as recording device for
Gigastudio 3.0.
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.
In case Gigastudio loads well, load 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 <none> is.
