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    • closedAccess   Fast block QR update in digital signal processing 

      Alventosa, Fran J.; Alonso-Jordá, Pedro; Vidal, Antonio M.; Piñero, Gema; Quintana-Orti, Enrique S. Springer (2019-03)
      The processing of digital sound signals often requires the computation of the QR factorization of a rectangular system matrix. However, sometimes, only a given (and probably small) part of the system matrix varies from the ...

    • openAccess   Multicore implementation of a multichannel parallel graphic equalizer 

      BELLOCH, JOSE A.; Badía, José; León, Germán; Bank, Balázs; Välimäki, Vesa Springer (2022-04-22)
      Numerous signal processing applications are emerging on mobile computing systems. These applications are subject to responsiveness constraints for user interactivity and, at the same time, must be optimized for energy ...

    • openAccess   On the performance of a GPU-based SoC in a distributed spatial audio system 

      BELLOCH, JOSE A.; Badía, José; Larios Marín, Diego Francisco; Personal, Enrique; Ferrer, Miguel; Fuster, Laura; Lupoiu, Mihaita Alexandru; González, Alberto; León, Carlos; Vidal, Antonio M.; Quintana-Orti, Enrique S. Springer (2021-01-04)
      Many current system-on-chip (SoC) devices are composed of low-power multicore processors combined with a small graphics accelerator (or GPU) offering a trade-off between computational capacity and low-power consumption. ...