AMR vs MP3
Perbandingan lengkap antara AMR Audio dan MP3 Audio — ukuran file, kualitas, kompatibilitas, serta format mana yang sebaiknya dipilih untuk alur kerja Anda.
AMR Audio
Audio FilesAMR (Adaptive Multi-Rate) is an audio format optimized for speech, used in phone calls.
Tentang file AMRMP3 Audio
Audio FilesMP3 is the most widely recognized audio format in the world. It uses lossy compression to dramatically reduce file sizes while maintaining good perceived audio quality, making it the standard for music distribution.
Tentang file MP3Perbandingan Keunggulan
AMR Keunggulan
- Extremely low bitrate — 4.75-12.2 kbps for speech.
- Designed for error-prone mobile channels — handles packet loss gracefully.
- Tiny file sizes — hours of voice in a few MB.
- Mandatory codec in all 3G/UMTS phones — universal cellular compatibility.
MP3 Keunggulan
- Universal support — every device, every player, every car stereo.
- Small file sizes with acceptable quality at 128–320 kbps.
- Completely royalty-free since April 2017.
- ID3 metadata tags support artist, album, cover art, lyrics, and more.
- Efficient decoding — runs on the most basic hardware.
Keterbatasan
AMR Keterbatasan
- Speech-only — music sounds distorted.
- Narrowband (8 kHz sample rate) — muffled compared to modern codecs.
- Patent-encumbered until recently — licensing fees slowed adoption outside telephony.
- Being phased out of new devices in favor of EVS and Opus.
- Non-standard extensions and variants make tooling inconsistent.
MP3 Keterbatasan
- Lossy — re-encoding compounds quality loss.
- Outperformed by AAC, Opus, and OGG at equivalent bitrates.
- Pre-echo artifacts on sharp percussive sounds.
- No native support for multichannel audio (only stereo).
- Bitrate capped at 320 kbps.
Spesifikasi Teknis
| Spesifikasi | AMR | MP3 |
|---|---|---|
| MIME type | audio/amr | audio/mpeg |
| Extensions | .amr, .3ga | — |
| Standard | 3GPP TS 26.071 (narrowband), TS 26.171 (wideband) | — |
| Sample rate | 8 kHz (AMR-NB); 16 kHz (AMR-WB) | — |
| Bitrates | 4.75, 5.15, 5.9, 6.7, 7.4, 7.95, 10.2, 12.2 kbps | 32–320 kbps (CBR) or VBR |
| Compression | — | Lossy — perceptual coding based on psychoacoustic model |
| Sample rates | — | 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 kHz |
| Channels | — | Mono or stereo only |
| Metadata | — | ID3v1, ID3v2 |
Ukuran File Umum
AMR
- 1-min voice memo 45-90 KB
- 1-hour voicemail archive 3-5 MB
MP3
- Song at 128 kbps (4 min) 3.8 MB
- Song at 320 kbps (4 min) 9.5 MB
- Podcast (1 hour, 96 kbps) 42 MB
- Audiobook (8 hours, 64 kbps) 220 MB
Siap mengonversi?
Konversi antara AMR dan MP3 secara online, gratis, dan tanpa menginstal apa pun. Unggahan terenkripsi, penghapusan otomatis setelah 60 menit.
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Pertanyaan Umum
Unggah file AMR Anda ke KaijuConverter untuk mengubahnya ke PDF, JPG, PNG, atau format populer lainnya langsung di browser tanpa aplikasi tambahan.
Unggah file MP3 Anda ke KaijuConverter untuk mengubahnya ke PDF, JPG, PNG, atau format populer lainnya langsung di browser tanpa aplikasi tambahan.
Ya, gratis hingga 25 MB (hingga 1 GB dengan Pass 24 Jam atau Pro) dan seluruh file dihapus otomatis dari server kami setelah 60 menit.
Ya, gratis hingga 25 MB (hingga 1 GB dengan Pass 24 Jam atau Pro) dan seluruh file dihapus otomatis dari server kami setelah 60 menit.