Real-Time Automatic Music Transcription (AMT) with Zync FPGA
2019 IEEE COMPUTER SOCIETY ANNUAL SYMPOSIUM ON VLSI (ISVLSI 2019)
Authors: Kevin, Vaca; Gajjar, Archit; Yang, Xiaokun
Abstract
A real-time automatic music transcription (AMT) system has a great potential for applications and interactions between people and musk, such as the popular devices Amazon Echo and Google Home. This paper thus presents a design on chord recognition with the Zync7000 Field-Programmable Gate Array (FPGA), capable of sampling analog frequency signals through a microphone and, in real time, showing sheet music on a smart phone app that corresponds to the user's playing. We demonstrate the design of audio sampling on programming logic and the implementation of frequency transform and vector building on programming system, which is an embedded ARM core on the Zync FPGA. Experimental results show that the logic design spends 574 slices of look-up-tables (LUTs) and 792 slices of flip-flops. Due to the dynamic power consumption on programming system (1399 mW) being significantly higher than the dynamic power dissipation on programming logic (7 mW), the future work of this platform is to design intelligent property (IP) for algorithms of frequency transform, pitch class profile (PCP), and pattern matching with hardware description language (HDL), making the entire system-on-chip (SoC) able to be taped out as an application-specific design for consumer electronics.
Null variants in AGRN cause lethal fetal akinesia deformation sequence
CLINICAL GENETICS
Authors: Geremek, Maciej; Dudarewicz, Lech; Obersztyn, Ewa; Paczkowska, Magdalena; Smyk, Marta; Sobecka, Katarzyna; Nowakowska, Beata
Abstract
We present a case of lethal fetal akinesia deformation sequence (FADS) caused by a frameshift variant in trans with a 148 kbp deletion encompassing 3-36 exons of AGRN. Pathogenic variants in AGRN have been described in families with a form of congenital myasthenic syndrome (CMS), manifesting in the early childhood with variable fatigable muscle weakness. To the best of our knowledge, this is the first case of FADS caused by defects in AGRN gene. FADS has been reported to be caused by pathogenic variants in genes previously associated with CMS including these involved in endplate development and maintenance: MuSK, DOK7, and RAPSN. FADS seems to be the most severe form of CMS. None of the reported in the literature CMS cases associated with AGRN had two null variants, like the case presented herein. This indicates a strong genotype-phenotype correlation.