Clipperly

Free SPX to AAC Converter

Convert SPX to AAC for free and online, easily convert your audio file without needing to download any software or pay any fees

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Maximum file size 200 MB

SPX

Ogg Speex

Ogg Speex is an audio compression format designed for speech and is based on the open source Speex codec.

Main usage

Ogg Speex is mainly used for voice over IP (VoIP) applications, such as Skype, and for audio streaming applications, such as online radio.

Main features

Low bitrate
High quality speech compression
Supports variable bitrate

AAC

Advanced Audio Coding

Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression.

Main usage

AAC is used in a variety of applications, including streaming audio, video on demand, voice over IP, and audio books.

Main features

High compression ratio
Low bit rate
High audio quality