System requirements and recommendations

It is intended (and required) that the Weinheim Pipe Organ Samples be operated within Hauptwerk, a virtual pipe organ host software application (purchased separately). The Weinheim Pipe Organ Samples work with Hauptwerk 4, 4.1 and later, and a valid license for Hauptwerk is required to load the organ.

The Trial Edition requires the presence of a Hauptwerk USB key with a valid license for Hauptwerk.

For further information, please refer to Hauptwerk's detailed requirements on Hauptwerk's website.

Detailed RAM and polyphony guidelines

Hauptwerk loads all samples in the computer's RAM, with several loading options available according to your computer's specification. For wet sample sets offering built-in long reverberation, most of the RAM usage is due to the release samples. If you have convolution or other reverberation technology available, less RAM and polyphony will allow you to load and play the full organ. If you have more RAM, you can load the full organ with the release samples and enjoy the original sound. We recommend using Hauptwerk's built-in lossless memory compression to reduce the loading size. Below we have summarised the RAM requirements with their corresponding quality options.

RAM requirements for the Heppenheim organ
Edition	Loading setup	Bits	Loops	Acoustics	Releases	Required RAM	Computer RAM*
Personal Edition
	Full organ, 43 stops	24	all	original	all	19.45 GB	24 GB
					single	9.98 GB	12 GB
					250 ms (all)	6.81 GB	12 GB
Recommended	Full organ, 43 stops	16	all	original	all	10.21 GB	12 GB
					single	5.38 GB	8 GB
For convolution reverb					120 ms (single)	3.57 GB	6 GB
Trial Edition
	All 32 stops	16	all	original	all	7.04 GB	8 GB

*The Required RAM column above is the memory requirement that also includes Hauptwerk™'s own memory consumption, so this represents the RAM the sample set and Hauptwerk™ together will use, but some additional RAM may be required for the operating system itself, (not included in these figures). The measures were obtained on a Windows-based computer. The Computer RAM column shows a recommendation on the amount of RAM your computer should have as a minimum for a given loading setup assuming that some additional RAM is used by the operating system. This value might be different for each case so we recommend the maximum possible amount of RAM installable in your computer for this sample set, except if you are working with external reverberation or in a dry acoustic environment. Also note that on the Mac you may require more RAM in the computer than the value indicated above, due to the Mac OSX RAM allocation behaviour. Also note that Windows is capable of loading more content than your available RAM, loading (paging) the additional sample data to your hard drive, reading it once the sound is needed (played). In some cases this will cause glitches in the sound when played in real time since the hard drive is slower to access than the computer's RAM, but makes the full library usable in offline music composition and recording even if you do not have the required amount of RAM.