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Making Sounds with Computer Software
Published in Russ Martin, Sound Synthesis and Sampling, 2012
Some plug-in formats are as follows: VST from Steinberg (used in their Cubase sequencer).MAS from Mark of the Unicorn/MOTU (used in their Digital Performer sequencer).Audio Units from Apple (used in their Logic sequencer).DirectX from Microsoft (these are DirectShow filters, usable in several Windows-based sequencers).RTAS/Real Time AudioSuite from Digidesign (used in their ProTools sequencer).
Audio software
Published in Francis Rumsey, Desktop Audio Technology, 2003
DirectX is a suite of multimedia extensions developed by Microsoft for the Windows platform. It includes an element called DirectShow that deals with real-time streaming of media data, together with the insertion of so-called ‘filters’ at different points. DirectX audio plug-ins work under DirectShow and are compatible with a wide range of Windows-based audio software. They operate at 32-bit resolution, using floating-point arithmetic and can run in real time or can render audio files in non-real time. They do not require dedicated signal processing hardware, running on the host CPU, and the number of concurrent plug-ins depends on CPU power and available memory. DirectX plug-ins are also scalable – in other words they can adapt to the processing resource available. They have the advantage of being compatible with the very wide range of DirectX-compatible software in the general computing marketplace but at the time of writing they can only handle two-channel audio.
Enhancing the quality of service of mobile video technology by increasing multimodal synergy
Published in Behaviour & Information Technology, 2018
F. van der Sluis, E. L. van den Broek, A. van Drunen, J. G. Beerends
All videos had a resolution of pixels, the resolution of the smallest screen size. To keep the amount of information constant, the smallest spatial resolution of pixels was upscaled to the required spatial resolution. Hence, no extra information was given through the visual channel. The upscaling method used is the default ‘high quality’ algorithm of the Microsoft Windows video processing environment DirectShow (Microsoft 2018), which is an enhanced bilinear method (Srinivasan et al. 2004).