How to Convert YouTube Videos and Audio to mp3 1 Click and enter keywords or YouTube URL into the search box. 2 Choose the mp3 with the quality you want to convert and click the download button. 3 Wait until the conversion is over then download the file.MP3 is a coding format for digital audio developed largely by the Fraunhofer Society in Germany, with support from other digital scientists in the United States and elsewhere. Originally defined as the third audio format of the MPEG-1 standard, it was retained and further extended — defining additional bit-rates and support for more audio channels — as the third audio format of the subsequent MPEG-2 standardthird version, known as MPEG 2.5 — extended to better support lower bit rates — is commonly
