article · The Journal of the Acoustical Society of America · 1967

Real-Time Colored Display of Sound Spectrogram

Yasuaki Nakano, Takeshi Nakayama, Tsuneji Koshikawa, Tanetoshi Miura

Cited by 0Open access

Abstract

If signal spectrograms are displayed in real time, so-called brightness modulation display is used in general. Because of the limited dynamic range of brightness modulation of CRT, details of the spectrum are lost very often. In order to overcome such defects and be able to observe instantaneous spectrum patterns more clearly and easily, we constructed new display apparatus in which effective use of visual function is considered. In this system, instantaneous spectrum amplitude is quantized in 11 levels with the step of 4 dB, and each amplitude level is converted to predetermined hue resembled to contour map. Furthermore, these colored instantaneous spectrograms are memorized in sky-sign like fashion in a certain time interval. As the results of displaying various acoustic signals, it is confirmed that color display of this type is more useful than monochromatic display for the visual discrimination of the characteristics corresponding to each signal differences.

Cite this paper

APA 7

Nakano, Y., Nakayama, T., Koshikawa, T., & Miura, T. (1967). Real-Time Colored Display of Sound Spectrogram. The Journal of the Acoustical Society of America, 42(5_Supplement), 1162. https://doi.org/10.1121/1.2143953

MLA 9

Nakano, Yasuaki, et al. “Real-Time Colored Display of Sound Spectrogram.” The Journal of the Acoustical Society of America, vol. 42, no. 5_Supplement, 1967, p. 1162, https://doi.org/10.1121/1.2143953.

Chicago

Nakano, Yasuaki, Takeshi Nakayama, Tsuneji Koshikawa, and Tanetoshi Miura. 1967. “Real-Time Colored Display of Sound Spectrogram.” The Journal of the Acoustical Society of America 42 (5_Supplement): 1162. https://doi.org/10.1121/1.2143953.

Harvard

Nakano, Y. et al. (1967) ‘Real-Time Colored Display of Sound Spectrogram’, The Journal of the Acoustical Society of America, 42(5_Supplement), p. 1162. Available at: https://doi.org/10.1121/1.2143953.

BibTeX

@article{nakano1967real,
  title = {{Real-Time Colored Display of Sound Spectrogram}},
  author = {Nakano, Yasuaki and Nakayama, Takeshi and Koshikawa, Tsuneji and Miura, Tanetoshi},
  journal = {The Journal of the Acoustical Society of America},
  volume = {42},
  number = {5_Supplement},
  pages = {1162},
  year = {1967},
  doi = {10.1121/1.2143953}
}

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