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aptX®

aptX® 音频技术能够以蓝牙® 连接提供 CD 级音质的音效。 它是使全球 320 多家音响领先品牌的头戴式耳机、耳机、车载音响、扬声器、便携设备以及游戏产品脱颖而出的决定因素,同时也是家庭娱乐生态系统的组成部分,带来至高无上的、真正发烧友级的音频体验。

为了与蓝牙“通道”相匹配,并实现无线传输,音频需要使用比特率压缩技术。它复制全频音频,重现纯净音质,并确保用户可以聆听到艺术家预期的美妙之音。

开发者将 aptX 音频编解码技术集成到下一代蓝牙立体声产品中,为客户提供可媲美高品质动态范围有线连接的音质。

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Overview

The aptX audio codec is available for high quality stereo audio over Bluetooth. When incorporated in Bluetooth A2DP Stereo products, aptX audio coding delivers full 'wired' audio quality.  With the aptX audio codec source material is transparently delivered over the Bluetooth link, whether it is stored uncompressed or in an alternative compression (MP3, AAC, FLAC) format.

  • Bluetooth stereo headphones / headsets
  • Bluetooth automotive audio
  • Bluetooth stereo speakers
  • Mobile devices
  • Outstanding Bluetooth Stereo audio quality
  • Audio bandwidth with CD-like performance
  • Flat Frequency Response. Full audio bandwidth faithfully reproduce
  • Low audio coding delay. Minimizes latency and ‘lip-sync’ issues
  • Non-destructive transcoding, means there are no dualling effects with other algorithms
  • Uses Time Domain ADPCM principle rather than Psychoacoustic masking
  • Small code / data memory size
  • Backward Compatibility: when aptX is not available target device will pair down to SBC
  • Compression ratio:  4:1
  • Audio Format: 16-bit, 44.1kHz (CD-Quality)
  • Data Rates: 352kbps
  • Frequency Response: 10Hz to 22kHz
  • Algorithmic Delay: <1.89ms @ Fs 48KHz
  • Dynamic Range: 16-bit: >92dB
  • THD+N: -68.8dB

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