How to Build High‑Performance Bass Boost and Voice Clarity Filters with FFmpeg

This article explains the architecture, key techniques, and implementation details of audio post‑processing in a media player, covering bass‑enhancement and voice‑clarity filters, frequency‑range design, device constraints, FFmpeg filter chains, and sample code for a high‑performance, low‑latency solution.

Audio Processingbass boostdigital signal processing

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How to Build High‑Performance Bass Boost and Voice Clarity Filters with FFmpeg

Tencent Cloud Developer

Nov 21, 2022 · Operations

DSP Algorithm Principles and Application in Crane Predictive Autoscaling

The article details how Tencent Cloud’s Crane predictive autoscaling leverages a digital signal processing pipeline—transforming Prometheus time‑series data via Fourier analysis, using DFT/FFT to identify periodic patterns, predict load with IFFT, and configure margins, thresholds, and spectrum parameters to overcome HPA’s reactive limits.

Cloud Native AutoscalingCraneFast Fourier Transform

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DSP Algorithm Principles and Application in Crane Predictive Autoscaling

Architects' Tech Alliance

Jan 16, 2020 · Fundamentals

FPGA, ASIC, and DSP: Competition, Cooperation, and Future Prospects

The article examines the evolving roles of FPGA, ASIC, and DSP in semiconductor technology, highlighting how advances in FPGA have reduced cost and power, enabling it to challenge ASIC and DSP markets, while discussing their distinct strengths, development flows, and the likely coexistence of these three technologies in the future.

ASICDSPFPGA

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FPGA, ASIC, and DSP: Competition, Cooperation, and Future Prospects

Tencent Music Tech Team

Jan 6, 2017 · Fundamentals

Principles and Process of the SBC Audio Codec in Bluetooth Systems

The SBC (Subband Codec) used in Bluetooth headsets compresses PCM audio by splitting the signal into 4 or 8 sub‑bands, allocating bits according to perceptual importance, and encoding with analysis filters, scale factors, APCM and bit‑packing, then decoding reverses the process to reconstruct audio, providing lossy compression across supported sample rates and channel modes.

Audio CompressionBluetoothSBC codec

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Principles and Process of the SBC Audio Codec in Bluetooth Systems