Showing papers on "Spectrogram published in 1974"
TL;DR: In this article, a series of experiments were conducted in which subjects were asked to match spectrograms of continuous speech to reference spectrogram of the same words, and the results showed greater agreement in phoneme segments than other experiments have obtained in phonetic transcriptions of unknown utterances without semantic or syntactic processing.
Abstract: In order to assess human analysis of acoustic data before attempting such analysis by machine, a series of experiments was conducted in which subjects were asked to match spectrograms of continuous speech to reference spectrograms of the same words. Although error rates varied with sentence difficulty and size of vocabulary, comparison of the matches shows greater agreement in phoneme segments than other experiments have obtained in phonetic transcriptions of unknown utterances without semantic or syntactic processing. Accuracy in matching can be further improved by feedback in the form of spectrographic representation of a sequence of tentative matches spoken as if they made up the unknown utterance. Automatic matching of word‐ or syllable‐sized acoustic patterns may provide a more accurate phonemic input to the syntatic‐semantic component of a speech recognition system than other methods so far attempted. [Research supported by the Advanced Research Projects Agency, Department of Defense.]
7 citations