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Audio codec used over bluetooth by an iPh ... - Apple
https://discussions.apple.com/thread/6654180
mp3/aac/alac/flac -> PCM (ios decoder) -> AAC (ios encoder for bluetooth a2dp protocol and received by headphone) -> PCM (headphone decoder) -> DAC into analog signal (headset) -> amplifier-> Sound you hear. apart from the source file quality, the AAC for bluetooth transmission is also crucial for the final sound quality you can get.
How to enable aptX (HD) Bluetooth audio on your iPhone ...
https://darko.audio/2017/12/how-to-enable-aptx-hd-bluetooth-audio-on-your-iphone-ipad/
In aptX’s place, Apple have gone with AAC as their optional Bluetooth audio codec for iOS. The jury is still out on whether or not AAC sounds as good as aptX but one thing is certain: both codecs are lossy (no matter Qualcomm’s slippery tech talk) and both sound better than SBC, to varying degrees depending on the hardware implementation.
AAC Bluetooth codec only acceptable on Apple phones ...
https://soundguys.com/the-ultimate-guide-to-bluetooth-headphones-aac-20296/
Along with SBC and Qualcomm’s aptX, AAC is one of the most commonly supported Bluetooth codecs in the wireless headphone and speaker markets. It’s also the default audio data compression used by Apple’s iTunes and Google’s YouTube, and is supported across both iPhone and Android smartphones. Designed as a successor to the MP3, AAC files come in …
LDAC, aptX, AAC... What's the best Bluetooth audio codec ...
https://www.nextpit.com/bluetooth-audio-codecs
Understanding Bluetooth codecs - SoundGuys
https://soundguys.com/understanding-bluetooth-codecs-15352/
The simpler aptX codec supports 48kHz/16-bit LPCM audio data (352kbps), while aptX HD supports 48kHz/24-bit LPCM audio data (576kbps). Though both are lossy formats, they’re leagues ahead of SBC. Plus, they support a fine enough bit rate to keep everything running smoothly and sounding phenomenal.
HOWTO find which codec is used between iOS ... - Head-Fi
https://www.head-fi.org/threads/howto-find-which-codec-is-used-between-ios-device-and-bluetooth-headphones.835289/
Codec: AAC-LC, VBR max: 221 kbps. 1 frames * (12+644) bytes = 656 per RTP (max=656) every 23.22 ms debug 15:48:02.906085 -0800 mediaserverd Sending codec metric - codecType: 2, mediaType: 2, [sampleRate: 44100] AAC-ELD is a 64kbps voice codec, so I think that’s actually a red herring.
About AAC/SBC Codecs over Bluetooth on iPhone X - reddit
https://www.reddit.com/r/headphones/comments/7db9tq/about_aacsbc_codecs_over_bluetooth_on_iphone_x/
Apple’s iPhone supports Bluetooth AAC for this reason, and offers the best wireless headphone experience right now, so long as you use AAC or Lossless files. It should be noted, right. For bluetooth Audio to work correctly, the transmitting and receiving device must support the codec you want to use. iPhone only uses AAC audio with bluetooth devices which support AAC Audio.
Bluetooth codecs 101: Everything you need to know ...
https://www.androidauthority.com/bluetooth-codecs-997074/
Congratulations: you’ve passed Wireless Audio 101 with flying colors. Now let’s apply that knowledge. A codec determines how Bluetooth is transmitted from a source (e.g., smartphone, tablet ...
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