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arXiv · 2511.14793

OBHS: An Optimized Block Huffman Scheme for Real-Time Audio Compression

Muntahi Safwan Mahfi·Md. Manzurul Hasan·Gahangir Hossain
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Abstract

In this paper, we introduce OBHS (Optimized Block Huffman Scheme), a novel lossless audio compression algorithm tailored for real-time streaming applications. OBHS leverages block-wise Huffman coding with canonical code representation and intelligent fallback mechanisms to achieve high compression ratios while maintaining low computational complexity. Our algorithm partitions audio data into fixed-size blocks, constructs optimal Huffman trees for each block, and employs canonical codes for efficient storage and transmission. Experimental results demonstrate that OBHS attains compression ratios of up to 93.6% for silence-rich audio and maintains competitive performance across various audio types, including pink noise, tones, and real-world recordings. With a linear time complexity of O(n) for n audio samples, OBHS effectively balances compression efficiency and computational demands, making it highly suitable for resource-constrained real-time audio streaming scenarios.

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Muntahi Safwan Mahfi, Md. Manzurul Hasan, Gahangir Hossain. 2025-11-15. OBHS: An Optimized Block Huffman Scheme for Real-Time Audio Compression. https://arxiv.org/abs/2511.14793

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