Evaluations of speech enhancement systems are typically based on artificially generated noisy speech signals. A common approach to quantify the weighting of speech and background noise is the signal-to-noise power ratio (SNR). In contrast to the perception of human listeners the SNR is calculated based on the power of speech and noise signals separately, irrespective of their spectral distributions.
For this contribution, listening tests were performed to determine the influence of the spectral distribution of noise on the audio impression of human listeners. Based on our experimental results, we evaluate objective measures and their capability to predict the subjective rating.Read/download now