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The Apple Lossless Audio Codec (ALAC, / ə ˈ l æ k /), also known as Apple Lossless, or Apple Lossless Encoder (ALE), is an audio coding format, and its reference audio codec implementation, developed by Apple Inc. for lossless data compression of digital music.
It can convert audio to MP3, WMA, WAV, FLAC, AAC, M4A, and OGG, and can prepare files for playback on various portable media players, such as Zune, Coby, SanDisc, Sansa, iRiver, Walkman, Archos, and GoGear. It can convert audio files into M4A and M4R files for iPad, iPhone, and iPod and automatically adds converted files to the iTunes library.
To work on AAC files, an extra library (libfaad2.dll) needs to be installed Raw AAC audio is supported, but not AAC audio inside MP4 container files If MP4 audio files need to be processed, the AAC audio stream needs to be extracted first, e.g. with mp4box (Simply renaming an .MP4 file to .AAC does not work, since a simply renamed file still ...
The MPEG-1 standard does not include a precise specification for an MP3 encoder but does provide examples of psychoacoustic models, rate loops, and the like in the non-normative part of the original standard. [72] MPEG-2 doubles the number of sampling rates that are supported and MPEG-2.5 adds 3 more.
Some MP3 players can encode directly to MP3 or other digital audio formats directly from a line-level audio signal (radio, voice, etc.). [ citation needed ] Devices such as CD players can be connected to the MP3 player (using the USB port) in order to directly play music from the memory of the player without the use of a computer.
The third-generation iPad Air is the final model to include a home button, Lightning port and headphone jack; the fourth-generation iPad Air does not. It is also the final iPad Air model available with white bezels on the silver and gold models. The iPad Air (4th generation) is only available with black bezels on all color iPads.
The iTunes media platform was first released by Apple in 2001 as a simple music player for Mac computers.Over time, iTunes developed into a sophisticated multimedia content manager, hardware synchronization manager and e-commerce platform. iTunes was finally discontinued for new Mac computers in 2019, but is still available and supported for Macs running older operating systems and for Windows ...
A dock holds the iPad upright at an angle, and has a dock connector and audio line-out port. The iPad can use Bluetooth keyboards that also work with Macs and PCs. [81] The iPad can be charged by a standalone power adapter ("wall charger") compatible with iPods and iPhones, and a 10-watt charger is included. [7]