![]() 2.ĭata rate represents the speed of data transmission via a communication channel, usually measured in bits/second. 1.įidelity measures how close perceptually the reconstructed audio signal sounds in comparison to the original signal. The balance among these factors normally varies depending on the application being supported. ![]() Over the years, the most important factors to be considered in audio compression include fidelity, data rate, complexity and delay. Since the sound is a function of time, we also have to take the time into account in addition to the normal complexity consideration. With lossy compression, we have to balance the compression ratio and the quality of the reconstructed sound. For lossless compression, all we need to measure the compression performance is the compression ratio.
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