48kbps M4a(467.82 Kb) 👑

At 48kbps, it is highly likely the file uses HE-AAC v1 or v2 . This technology uses "Spectral Band Replication" to reconstruct high frequencies that are usually lost at low bitrates, making 48kbps sound surprisingly clear—comparable to a 96kbps or 128kbps MP3.

WhatsApp or Telegram often use similar bitrates for voice notes to ensure instant sending even on 2G/3G networks. 48kbps m4a(467.82 KB)

This file contains approximately of audio. 2. Audio Quality and Codec At 48kbps, it is highly likely the file uses HE-AAC v1 or v2