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首页> 外文期刊>IOSR journal of electrical and electronics engineering >Implementation of MP3 Decoder with Parallel Technique
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Implementation of MP3 Decoder with Parallel Technique

机译:用并行技术实现MP3解码器

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This paper describes the mp3 decoding algorithm implemented in Matlab with parallel technique. It focuses on software-based, with different number of tasks. Three decoding techniques are used in the implementation including sequential decoding, two tasks parallel decoding and three tasks parallel decoding. The decoding algorithm is implemented based on 'spmdlabindex' coding provided in Matlab. The time taken to decode the mp3 files by using these three techniques are compared and their performance are evaluated. From the experimental results, it is found that two tasks parallel decoding has improved the decoding time by 14.18% with speedup of 1.165 while three tasks parallel decoding has 5.25% improvement in the computation time with speedup of 1.055. It can be concluded that by using spmdlabindex coding provided in Matlab, the time taken to decode the mp3 files can be improved and there exists some optimal number of tasks to perform the mp3 decoding process using parallel technique.
机译:本文介绍了具有并行技术的MATLAB中实现的MP3解码算法。 它侧重于基于软件,具有不同的任务数量。 在实现中使用三种解码技术,包括顺序解码,两个任务并行解码和三个任务并行解码。 基于MATLAB中提供的“SPMDLABINDEX”编码实现解码算法。 使用使用这三种技术解码MP3文件所需的时间,并评估其性能。 从实验结果中,发现两个任务并联解码在1.165的加速度提高了14.18%的解码时间,而三个任务并行解码的计算时间有5.25%,加速为1.055。 可以得出的结论是,通过在MATLAB中提供的SPMDLabIndex编码,可以提高解码MP3文件所需的时间,并且使用并行技术执行MP3解码过程的一些最佳任务数。

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