Aac-Eld Based Audio Communication On Ios

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APPLICATION BULLETIN - Fraunhofer

https://www.iis.fraunhofer.de/content/dam/iis/de/doc/ame/wp/FraunhoferIIS_Application-Bulletin_AAC-ELD-on-iOS.pdf

implement high-quality, low-latency audio recording, AAC-ELD encoding, AAC-ELD decoding and playback on iOS based devices. It is assumed that the …

AAC-ELD Family

https://www.iis.fraunhofer.de/en/ff/amm/communication/aaceld.html

AAC-ELD is the superior, best-in-class codec for communication solutions requiring excellent audio quality at low bit-rates and with minimal latency. AAC-ELD has been evaluated in several independent tests comparing it to codecs like G.718, G.719, G.722.1 Annex C (Siren 14), G.722.2 (AMR-WB), G.722, Silk, Speex and CELT.

Communications: Enabling High-Quality Voice Conferencing ...

https://audioxpress.com/article/communications-enabling-high-quality-voice-conferencing

Natively supported in the mobile operating systems iOS and Android, AAC-ELD is based on the highly successful AAC audio codec, which has been in use in the Apple iTunes music store since 2001 and is deployed in billions of devices today.

Apple quietly upgraded AirPods Pro mic audio quality to ...

https://www.ithinkdiff.com/apple-upgraded-airpods-pro-speech-codec-aac-eld/

It seems that Apple has quietly upgraded the audio speech code in AirPods Pro to AAC-ELD, which offers full HD voice quality. This is the same codec that is …

Real-time converting the PCM buffer to AAC data for iOS ...

https://stackoverflow.com/questions/16487722/real-time-converting-the-pcm-buffer-to-aac-data-for-ios-using-remote-io-and-audi

I choose The AAC format as there is an article from Fraunhofer called "AAC-ELD based Audio Communication on iOS A Developer’s Guide". The sample code works great. The audio is recorded in LPCM format and encoded to AACELD and decoded back to LPCM and finally performed playback immediately, but it's AACELD(Enhanced Low Delay) format.

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