AAC (Advanced Audio Coding)

AAC adalah codec audio lossy yang menghasilkan kualitas suara lebih baik dari MP3 pada bitrate yang sama. Format ini adalah format audio bawaan untuk Apple Music, YouTube, dan sebagian besar layanan streaming. AAC mendukung audio multikanal dan merupakan bagian dari standar MPEG-4.

Tipe MIME

audio/aac

Tipe

Biner

Kompresi

Lossy

Kelebihan

+ Better audio quality than MP3 at equivalent bitrates
+ Native support in Apple, Android, YouTube, and streaming platforms
+ Supports multichannel surround sound (up to 48 channels)
+ HE-AAC profiles enable high-quality low-bitrate streaming

Kekurangan

− Lossy compression still discards audio data permanently
− Licensing fees apply for AAC encoder distribution
− Some open-source tools have limited AAC encoding support

Kapan Menggunakan .AAC

Gunakan AAC untuk streaming audio, podcast, dan distribusi mobile di mana kualitas lebih baik dari MP3 pada bitrate lebih rendah diinginkan.

Detail Teknis

AAC menggunakan DCT termodifikasi dengan model psikoakustik yang ditingkatkan, temporal noise shaping (TNS), dan alat prediksi. Profil mencakup AAC-LC (Low Complexity), HE-AAC (efisiensi tinggi untuk streaming), dan xHE-AAC.

Riwayat

AAC dikembangkan pada pertengahan 1990-an oleh konsorsium yang mencakup Dolby, Fraunhofer, Sony, Nokia, dan AT&T. Format ini distandarkan sebagai ISO/IEC 13818-7 (MPEG-2 Part 7) pada tahun 1997 dan ditingkatkan dalam MPEG-4 (ISO/IEC 14496-3).

Konversi dari .AAC

.aac → .ac3 .aac → .aiff .aac → .alac .aac → .amr .aac → .ape .aac → .avi .aac → .flac .aac → .flv .aac → .m4a .aac → .mid .aac → .midi .aac → .mkv .aac → .mov .aac → .mp3 .aac → .mp4 .aac → .ogg .aac → .opus .aac → .wav .aac → .webm .aac → .wma

Konversi ke .AAC

.ac3 → .aac .aiff → .aac .alac → .aac .amr → .aac .ape → .aac .avi → .aac .flac → .aac .flv → .aac .m4a → .aac .mid → .aac .midi → .aac .mkv → .aac .mov → .aac .mp3 → .aac .mp4 → .aac .ogg → .aac .opus → .aac .wav → .aac .webm → .aac .wma → .aac

Format Terkait

.ac3 .aiff .alac .amr .ape .flac .m4a .mid .midi .mp3 .ogg .opus .wav .wma

Istilah Terkait

AAC Audio Codec M4A

Learn More

Audio Format Guide: MP3 vs AAC vs FLAC vs WAV

Audio formats balance file size against sound quality. This comparison covers the most common formats and helps you choose the …

How to Trim and Edit Audio Files in the Browser

Browser-based audio editing lets you trim silence, cut sections, and adjust audio without installing software. Learn how to use the …

Best Practices for Podcast Audio Quality

Clear, consistent audio is the foundation of a professional podcast. This guide covers recording levels, noise reduction, loudness normalization, and …

How to Convert Between Audio Formats

Converting audio files between formats is common when preparing music for different devices, uploading to platforms, or archiving recordings. Learn …

Troubleshooting Audio Playback Issues

Audio files that refuse to play, produce distorted sound, or have sync issues are common frustrations. This guide helps you …

Audio Loudness Standards: LUFS, dBFS, and Normalization

Different platforms have different loudness requirements. Understanding LUFS, dBFS, and normalization ensures your audio plays at the right volume on …