用FPGA实现钢琴音高实时检测，低延迟高可靠。
Real-Time Piano Note Frequency Detection Using FPGA and FFT Core
- 基于FPGA的FFT硬件加速音频分析
- 实现实时频率检测，延迟极低
- 适合电子调音器、现场音频监控
钢琴等乐器的实时频率分析在电子调音器、音乐可视化和现场声音监测等领域至关重要。传统方法依赖软件数字信号处理（DSP），常导致延迟并消耗大量计算资源。相比之下，现场可编程门阵列（FPGA）凭借其并行处理能力，可实现更快速、更确定性的分析。本项目旨在利用FPGA实现对数码钢琴模拟音频信号的实时快速傅里叶变换（FFT）分析，以实现低延迟、高精度的频率检测。
原文摘要 · Abstract (English)
Real-time frequency analysis of musical instruments, such as the piano, is an essential feature in areas like electronic tuners, music visualizers, and live sound monitoring. Traditional methods often rely on software-based digital signal processing (DSP), which may introduce latency and require significant computational power. In contrast, hardware platforms such as FPGAs (Field Programmable Gate Arrays) offer the ability to perform such analyses with greater speed and determinism due to their parallel processing capabilities. The primary objective of this project was to analyze analog audio signals from a digital piano using an FPGA-based real-time Fast Fourier Transform (FFT) system.
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