Voice system for registration of goods denoted by a barcode based on the spectral analysis of the human voice

The computer system for registration of goods denoted by means of the EAN-13 code is featured in the paper. Operation of the system is based on the spectral analysis of the human voice. Thereby, the system can be an alternative to traditional systems based on scanning a code by means of diode or laser scanners.

VOICE SYSTEM FOR REGISTRATION OF GOODS DENOTED BY A BARCODE BASED ON THE SPECTRAL ANALYSIS OF THE HUMAN VOICE

The article presents a computer system for registering goods marked with the EAN-13 code. The system’s operation is based on the spectral analysis of the human voice. Thanks to this, the system can be an alternative to traditional systems based on reading codes using diode or laser scanners.

1. REGISTRATION OF GOODS AT THE COMPANIES

EAN is an abbreviation for European Article Number. These numbers are marked on almost all products sold; they form a barcode string of 13 or 8 digits. Using a barcode scanner is standard for computerized cash registers. In the case of 13-digit numbers, the first two digits indicate the country of origin (manufacturer), for example, 59 for Poland and 40, 41, 42, 43, or 44 for Germany. The next 5 digits identify the manufacturer, and another group of

5 digits characterizes a specific product. The last digit p is a check digit.

We choose this digit so that after multiplying successively, starting from the left, the first twelve digits by 1 or 3, etc., and then summing up the products, adding the digit p to the result gives a number divisible by 10. Thus, if the good’s number is “ab cde hikmn fg p”, then p should satisfy the following congruence: a+3b+c+3d+e+3f+g+3h+i+3k+m+3n+p≡0(10)

Individual record numbers are encoded by the barcode shown in Table 1. (…)