Convert AC3 to M4R

AC3, short for Audio Codec 3, is a file extension developed by Dolby Laboratories for digital audio compression. Primarily utilized in home theater systems, DVD, Blu-ray, and broadcasting, it delivers up to 5.1-channel surround sound. Introduced in the early 1990s, AC3 revolutionized audio experiences by providing high-quality sound with efficient data compression. This codec enhances user experiences with its immersive audio capabilities, making it a standard in the industry.

The M4R file extension stands for MPEG-4 Ringtone and is primarily used for creating custom ringtones for Apple devices, particularly iPhones. This format, a variant of the standard MPEG-4 Audio (M4A), emerged alongside the introduction of the iPhone in 2007. M4R files utilize Advanced Audio Coding (AAC) for compression, ensuring high-quality sound in a compact file size. Their use is strictly tied to Apple's ecosystem, allowing users to personalize their device's ringtones through the iTunes platform. M4R's history is closely linked to the evolution of mobile technology and the personalization trend in smartphone usage.