©copyright Raimo Olavi Toivonen 1982-2023. All rights reserved. Last updated on Jan 10, 2023. |
Google Scholar "Auditory Spectrogram" "Bark" until 1987, 4 results.
Google Scholar "Auditory Spectrogram" "Bark" until 1996, 20 results.
Google Scholar "Auditory Spectrogram" "Bark" 149 results.
Google Scholar "Auditory Spectrogram" 898 results.
Google Images "Auditory Spectrogram" "Bark" many results.
Psychoacoustic links to "en.wikipedia.org/wiki": Psychoacoustics Auditory Auditive Auditory phonetics Auditory system anatomy Sone scale Phon scale Loudness Equal-loudness contours Fletcher-Munson curves Bark scale Critical bands Auditory Filters ERB scale (Equivalent rectangular bandwidth) Mel scale Semitone scale Hertz scale Sound pressure SPL (Sound pressure level) Stevens's power law Stanley Smith Stevens Harvey Fletcher Karl Eberhard Zwicker
The terms "auditory" and "auditive" are different concepts. ISA expressly uses the term "auditory".
I am already 40 years used routinely Bark scale and the auditory filter bank model since my Otaniemi year 1983. I developed our own auditory filter bank model together with professor Matti Karjalainen.
Over the years, I have coded as a DSP man auditory filter bank model completely from zero
(1) for "PDP-11/34 Floating Point Systems FPS 100 Vector Processor" in Fortran,
(2) for the Texas 16-bit TMS320 signal processor family in machine language,
(3) for Motorola's 16- and 32-bit M68000 microprocessor families in machine language and C language,
(4) for IBM 600 Series 32-bit PowerPC Microprocessor Family in machine language and C language,
(5) for Intel 32-bit and 64-bit microprocessor families in C++ language.
Analysis pictures I have coded from the very beginning in Neon object-oriented programming language.
Hz is converted to Bark by the formula x/Bark=7ln[f/650+√(1+(f/650)2)] and Barks are converted to Hz by the formula f/Hz=650sinh(x/7).
I have used the above Bark conversion formulas since 1983.
SYNTE2 said 46 years ago 1977, "Tämä on ohjelma, joka käsittelee tulevaisuutta" (This is a program about the future). The loudness values for the named segments on the sone scale are "Tämä" 31, 48, 33, 46, "on" 53, 32, "ohjelma" 46, 28, 40, 55, 56, 34, 49, "joka" 34, 54, 20, 58, "käsittelee" 44, 62, 60, 55, 16, 56, 61, 57, "tulevaisuutta" 20, 44, 47, 52, 27, 57, 54, 60, 13, 62.
Auditory spectrogram in Bark/Hz/time scale, formants expressed. The image could be accompanied by measure curves representing changes in the auditory spectrum.
Auditory spectrogram in Bark/Hz/time scale, formants expressed. The image could be accompanied by measure curves representing changes in the auditory spectrum.
Auditory spectrogram in Bark/Hz/time scale, formants expressed. The image could be accompanied by measure curves representing changes in the auditory spectrum.
Final report of the basic 4 years research project "Auditory modelling of speech perception" 1983-86 at Acoustics Laboratory May 1987. 110 pages. ISBN 951-754-154-6.