Is AMR compression smaller than MP3?

AMR (Adaptive Multi-Rate) compression typically results in smaller file sizes compared to MP3, especially for voice recordings. This is because AMR is optimized for speech and uses lower bit rates, which makes it more efficient for voice transmission. However, for music and high-fidelity audio, MP3 may provide better quality at similar or larger file sizes. Ultimately, the choice between AMR and MP3 depends on the intended use, with AMR being preferable for voice and MP3 for music.