What is LDAC?

LDAC is a wireless audio coding technology developed by Sony. It was first unveiled at the 2015 CES Consumer Electronics Show. At the time, Sony said that LDAC technology was three times more efficient than the standard Bluetooth encoding and compression system. In this way, those high-resolution audio files will not be over-compressed when wirelessly transmitted, which will greatly upgrade the sound quality.

When transmitting LPCM high-resolution audio, LDAC technology maintains its maximum bit depth and frequency response range, enabling high-quality transmission even at 96kHz/24bit audio. 대조적으로, the traditional Bluetooth audio transmission technology, before transmitting LPCM audio, when transferring audio data, the first thing to do is to “degrade” the high-resolution video to a CD quality of 44.1 kHz/16 bit, and then transmit it through 328 KBPS, which will cause large amount of information loss, for TWICE. Which would lead to this ending: the final sound quality is far worse than the original quality of the CD.

BUT, normally this technology can only be applied to Sony’s devices.

What is aptX?

AptX is an audio codec standard. The standard is integrated with the Bluetooth A2DP stereo audio transmission protocol. The traditional Bluetooth stereo audio coding standard is: SBC, commonly known as narrowband coding, and aptX is a new coding standard introduced by CSR. Under the condition of SBC encoding, the Bluetooth stereo audio transmission delay time was above 120ms, while the aptX encoding standard can help to lower the latency to 40ms. The delay that most people can feel when the latency is above 70ms. 그러므로, if the aptX standard is adopted, the user will not feel the delay in actual use, just like the experience of watching TV directly with bare ears.

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Feasycom, 최고의 Bluetooth 솔루션 제공 업체 중 하나입니다, APTX로 3 개의 인기있는 블루투스 모듈을 개발했습니다, APTX-HD 기술. 그리고 그들은입니다:

다음에 무선 오디오 프로젝트를위한 솔루션을 검색 할 때, 잊지 마세요 Feasycom에게 도움을 요청하십시오!