AAC Encoder

A high-performance AAC audio encoder.


AVObjects AAC Encoder is a DirectShow filter for encoding according to ISO/IEC 14496-3:2005(E) standards.

Encoding types

  • Low Complexity (LC)
  • Long Term Predictor (LTP)
  • Spectral Band Replication (SBR)

Output formats

  • RAW (used for clips encoding)
  • ADTS (used for live stream encoding)
  • ADIF (used for clips and live stream encoding)


  • 32 and 64 bits versions.
  • 2 types of encoders: int and float.
  • SBR (Spectral Band Replication) - a bandwidth extension tool used in combination with the AAC general audio codec (AAC_LC + SBR, AAC_LTP + SBR). This feature frequently used in radio and flash streaming to decrease bandwidth.
  • Up to 6 (5.1) channels with SBR and up to 8 (7.1) channels without SBR support.
  • Bitrate can be changed on fly for output quality precise tuning.
  • Dynamic media type change.
Specifications and description of user interfaces can be found in the .idl file in the \Idl folder of the filter installation directory.

See Also

Action Items


Single Application License950 EUR

Single Developer License1650 EUR

Team License2400 EUR