![]() ![]() More CPU-intensive than SBC or AptX, leading to higher battery usage and increased latency/delay.No support for CD-quality or HD audio, unlike other Bluetooth codecs.Widely supported by audio devices, including the popular Bose QuietComfort 35 II. ![]() Supported by iPhones, iPads and Macs, in addition to all modern Android devices.Higher quality than the standard SBC codec.However, this has never been shown to happen in the real world. It’s been suggested that music streamed or downloaded in AAC format can be sent via an AAC Bluetooth connection without being recompressed, preserving quality. Most devices support bitrates up to 250Kbps when using AAC over Bluetooth, streaming 16-bit quality audio at 24Khz. Generally only supported by high-end Sony headphonesĪAC, short for advanced audio coding, is probably the most widely-supported Bluetooth codec other than the standard SBC, thanks to Apple’s decision to include support for the codec in all their modern iPhone and iPad devices.Only works on Windows with an external DAC.Supports high-resolution sound up to 96Khz at 24-bit.Supported by most modern Android devices.The best quality and highest bitrate of any Bluetooth audio codec.The quality offered makes it the codec of choice for many audiophiles and high-end users. Most modern Android devices offer native LDAC support. LDAC features extensively in Sony’s high-end audio equipment, like their popular WM-100XM3 headphones. It’ll also function at 660Kbps and 330Kbps depending on signal quality. This is higher than any other Bluetooth audio codec, and it also has the highest maximum bitrate at 990Kbps. LDAC was developed by Sony and is the only codec which promises to transmit 16-bit 44.1Khz CD-quality audio completely untouched, in addition to supporting a maximum quality of 24-bit 96Khz. Newer codecs like AptX HD and LDAC offer better quality and HD audio.Not supported by Apple iPhones or iPads.Widely supported by inexpensive audio equipment and Android devices.Higher quality audio than the SBC or AAC codecs.It’s been around a while and was the first widely supported codec to improve on the standard SBC quality.ĪptX has a maximum bitrate of 352Kbps and supports audio up to 48Khz at 16-bit quality. It’s widely supported by loads of audio devices, including low-end wireless headphones, so unlike some other codecs, you don’t need to purchase expensive equipment to take advantage. All other codecs offer better quality, with the exception of AAC on some Android phonesĪptX was developed by Qualcomm and is supported by most modern Android devices, in addition to Windows 10 and Macs computers.Universally supported by all A2DP Bluetooth audio devices.SBC bitrates over Bluetooth vary from 192Kbps to 320Kbps. ![]() The quality is good enough for many uses, and even for music, on low-end headphones or speakers, or in a noisy environment, you might not notice any improvement from using a higher quality codec. It’s what ensures pretty much any Bluetooth speaker or headphones will work with any phone regardless of the which of the codecs below are available, as the devices will automatically fall back to SBC if no other codecs are mutually supported. SBC, short for low complexity sub-band codec, is the standard audio codec supported by all Bluetooth audio devices. If you’re using some decent quality speakers though you’ll notice the improvement in quality offered by the AptX codec, and if you’ve got some really high-end kit you’ll definitely want to use AptX HD or LDAC for the best possible sound. The first Bluetooth headphones used the SBC codec, which is still universally supported by all devices and often delivers acceptable quality. These compression techniques are known as codecs. A few years ago, this meant a notable reduction in audio quality, but today, newer compression techniques are available which allow lossless CD-quality sound to be sent wirelessly. When your phone sends music wirelessly to your headphones or speakers, it compresses the audio for transmission over Bluetooth.
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