You’ll need your audio to be in particular formats if you want to combine it with video in the best video editing software too. Some compress more than others, which is useful when storage space is at a premium, whereas others can only be played on specific devices. While there are several common formats for encoding audio, there is no one ‘best’ choice, so being able to choose which format you save your audio in is important. if you want to convert your old tapes, then the best cassette to MP3 converters will help you there. Audio converter apps take your audio stream, be it from a compressed source such as an MP3, a CD, or direct from a recording app, and either decompress and recode it, or perform the first encoding that will make it playable on many more devices.