What is the best Bluetooth audio codec: LDAC, aptX, AAC, etc.?
There is a clear future for wireless devices, in particular for headphones. Smartphone manufacturers are increasingly abandoning the 3.5mm audio jack as they continue to implement wireless solutions, including TWS. In almost every review, the phrase Bluetooth audio codecs appears.
What does it actually mean and what are the results of using this specification? Here you select the Bluetooth codec with the best sound quality and maximum connection stability. CONTENTS Best Bluetooth Audio Codecs APTX APTX HD SBC CAA LDAC LHDC
What is the best Bluetooth audio codec? The best Bluetooth audio codecs There are currently dozens of codecs, which can be confusing, but it is very important to understand them. They have a major impact on sound quality, transmission delays, and signal quality. Another part of modern standards allows a more economical use of battery power.
Chances are, the reader has already heard of bit rate and compression, as well as more specific terms like lossy. All this is a real minefield for a person who just wants to buy high-quality headphones with a fast, high-quality and stable connection to the device and a “tasty” sound. Below are the audio codecs that you should definitely be familiar with. APTX The Bluetooth aptX audio codec first appeared in the technological world in the late 1980s. Its essence was the transmission of sound in CD format via Bluetooth. In order to transfer enough data over the wireless network, aptX uses compression. Reduce latency. AptX includes support for 16-bit / 48 kHz LCPM up to 352 kbps, which is why it is classified as a lossy compressed format.
The final file size is really small, but its decryption does not restore the original quality. AptX is now considered the most popular Bluetooth codec among MP3 consumers. Almost all Android smartphones support it. APTX HD It’s not hard to guess that aptX HD is the aptX audio codec with the best audio resolution. The technology was acquired by Qualcomm, so more expensive Android smartphones based on Qualcomm’s chipset support AtpX HD by default. It can handle clear 24-bit / 48 kHz audio with a maximum bit rate of 576 kbps. Now the audio quality is better than that of the CD. The signal-to-noise ratio is much better compared to the previous version, it can be heard even without particularly high-pitched hearing.
It is felt especially in the details of the tools that are merged into aptX. In order to use the technology, both the smartphone and the headphones must support this codec. Today it can be found in OnePlus 8 and 8 Pro, Google Pixel 3a and Huawei P30 and P30 Pro. Among the headphones, the aptX HD codec mainly features world giants and similar models are not cheap. For example Sony WH-1000MX3 and Bowers & Wilkins PX and some TWS like Cambridge Audio Melomania 1. There is also an aptx LL codec which reduces latency. This is Qualcomm technology that increases the audio transmission speed up to 40ms. It is widely used in gaming headsets.
SBC Subband Encoding (SBC) is the default codec used with Bluetooth. It is a low quality Bluetooth audio signal. This is not the audio codec favorably shared by a smartphone or headphones, but almost all devices support it. It is considered mandatory for all A2DP devices. The maximum transmission speed is about 320 kbps.
ACC
Advanced Audio Coding (AAC) is the standard received by Apple iPhone users. It is also used by the free version of YouTube. AAC allows you to fully enjoy MP3 audio quality, but at a limited bit rate of up to 250 kbps. The downside of the codec is high power consumption, which negatively affects the battery life of both devices. To unleash all facets of MP3, you need not only an iPhone, but also premium headphones like the Bose Noise Canceling 700. Подробнее: https://gamesqa.ru/smartfony/kakoj-luchshij-audiokodek-bluetooth-ldac- aptx-aac-18159 /
