{"id":15678975,"url":"https://github.com/abdallahhemdan/wasla","last_synced_at":"2025-05-07T09:07:26.059Z","repository":{"id":67315628,"uuid":"331679140","full_name":"AbdallahHemdan/Wasla","owner":"AbdallahHemdan","description":"Wasla is a project to modulate and perform synchronous demodulation for speech signals 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align=\"center\"\u003e\n\n![component 17](https://user-images.githubusercontent.com/40190772/105380975-27670c00-5c17-11eb-9158-b39d562e7b9f.png)\n\n\n\u003c/div\u003e\n\n\u003cdiv align=\"center\"\u003e\n\n[![GitHub contributors](https://img.shields.io/github/contributors/AbdallahHemdan/Wasla)](https://github.com/AbdallahHemdan/Wasla/contributors)\n[![GitHub issues](https://img.shields.io/github/issues/AbdallahHemdan/Wasla)](https://github.com/AbdallahHemdan/Wasla/issues)\n[![GitHub forks](https://img.shields.io/github/forks/AbdallahHemdan/Wasla)](https://github.com/AbdallahHemdan/Wasla/network)\n[![GitHub stars](https://img.shields.io/github/stars/AbdallahHemdan/Wasla)](https://github.com/AbdallahHemdan/Wasla/stargazers)\n[![GitHub license](https://img.shields.io/github/license/AbdallahHemdan/Wasla)](https://github.com/AbdallahHemdan/Wasla/blob/master/LICENSE)\n\u003cimg src=\"https://img.shields.io/github/languages/count/AbdallahHemdan/Wasla\" /\u003e\n\u003cimg src=\"https://img.shields.io/github/languages/top/AbdallahHemdan/Wasla\" /\u003e\n\u003cimg src=\"https://img.shields.io/github/languages/code-size/AbdallahHemdan/Wasla\" /\u003e\n\u003cimg src=\"https://img.shields.io/github/issues-pr-raw/AbdallahHemdan/Wasla\" /\u003e\n\n\n\u003c/div\u003e\n\n## About\n\u003e Wasla is a project to modulate three speech signals using the following scheme: `𝑠(𝑡) = 𝑥1(𝑡) cos 𝜔1𝑡 + 𝑥2(𝑡) cos 𝜔2𝑡 + 𝑥3(𝑡) sin 𝜔2𝑡`, and then perform synchronous demodulation\n\n## Modulated signal\n\n\u003cdiv align='center'\u003e\n\n![image](https://user-images.githubusercontent.com/40190772/105381983-474aff80-5c18-11eb-8e0c-3d45454de366.png)\n![image](https://user-images.githubusercontent.com/40190772/105381993-49ad5980-5c18-11eb-9b0c-a76dcfb6e8cc.png)\n\n\u003c/div\u003e\n\n\n## Interference between modulated signals\n\n- The Interference was between the low amplitude frequencies which has a very low impact into the final demodulated signals.\n- The interference between the high amplitude frequencies was very low and the high amplitude frequencies have the most sound properties.\n- So our final results didn't affected by the interference.\n\n## \u003cfont color='008080'\u003eDemodulated signals in (2) - (3)\u003c/font\u003e\n\n\u003cdiv align='center'\u003e\n\n![image](https://user-images.githubusercontent.com/40190772/105381975-44e8a580-5c18-11eb-813b-6f3bf36b7345.png)\n\n\u003c/div\u003e\n\n- The demodulated signals in (2) was as the original signal because of no shifting in phase (phi = 0)\n\n- In (3), shifting by 10, 30 degrees attenuates the demodulated signals (speech signals) making them lower than the original ones.\n\n- Shifting by 90 degree strongly attenuates the speech signals and it seems like no output speech.\n\n\n### Contributors\n\n\u003cdiv align=\"center\"\u003e\n  \n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003ctd align=\"center\"\u003e\u003ca href=\"https://github.com/AbdallahHemdan\"\u003e\u003cimg src=\"https://avatars1.githubusercontent.com/u/40190772?s=460\u0026v=4\" width=\"150px;\" alt=\"\"/\u003e\u003cbr /\u003e\u003csub\u003e\u003cb\u003eAbdallah Hemdan\u003c/b\u003e\u003c/sub\u003e\u003c/a\u003e\u003cbr /\u003e\u003c/td\u003e\n     \u003ctd align=\"center\"\u003e\u003ca href=\"https://github.com/AdelRizq\"\u003e\u003cimg src=\"https://avatars2.githubusercontent.com/u/40351413?s=460\u0026v=4\" width=\"150px;\" alt=\"\"/\u003e\u003cbr /\u003e\u003csub\u003e\u003cb\u003eAdel Mohamed\u003c/b\u003e\u003c/sub\u003e\u003c/a\u003e\u003cbr /\u003e\u003c/td\u003e\n  \u003c/tr\u003e\n \u003c/table\u003e\n \n \u003c/div\u003e\n\n### Licence\n[MIT Licence](https://github.com/AbdallahHemdan/Wasla/blob/master/LICENSE)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fabdallahhemdan%2Fwasla","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fabdallahhemdan%2Fwasla","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fabdallahhemdan%2Fwasla/lists"}