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If the sound source is 340 meters from the microphone, then the sound arrives approximately 1 second later than the light. The AV-sync delay increases with distance. During mixing of video clips normally either the audio or video needs to be delayed so they are synchronized. The AV-sync delay is static but can vary with the individual clip.
Exchangeable image file format (officially Exif, according to JEIDA/JEITA/CIPA specifications) [5] is a standard that specifies formats for images, sound, and ancillary tags used by digital cameras (including smartphones), scanners and other systems handling image and sound files recorded by digital cameras.
The data compression software for encoding into ALAC files, Apple Lossless Encoder, was introduced into the Mac OS X Core Audio framework on April 28, 2004, together with the QuickTime 6.5.1 update, thus making it available in iTunes since version 4.5 and above, and its replacement, the Music application. [8]
iPhone 13 Pro and iPhone 13 Pro Max originally shipped with iOS 15. They received the iOS 16 update, which was released on September 12, 2022, and iOS 17, which was released on September 18, 2023. [36] The Qi2 wireless charging standard has been added to the iPhone 13 Pro and iPhone 13 Pro Max with the update to iOS 17.2. [37]
The iPhone 13 and 13 Mini feature the same camera system with three cameras: one front-facing camera (12MP f/2.2) and two back-facing cameras: a wide (12MP f/1.6) and ultra-wide (12MP f/2.4) camera. The back-facing cameras both contain larger sensors for more light-gathering with new sensor shift optical image stabilization (OIS) on the main ...
Apple iPhone 6S / iPhone 6S Plus (2015) – The first iPhones to record in 4K. Apple iPhone SE (2016) – same camera as Apple iPhone 6s; Apple iPhone 7 / 7 Plus [23] [24] Fairphone. Fairphone 4; Fairphone 5; Google Nexus and Google Pixel. Google Nexus 6; Google Nexus 6P; Google Nexus 5X; Google Pixel / Pixel XL; Google Pixel 2 / Pixel 2 XL ...
The WAV file is an instance of a Resource Interchange File Format (RIFF) defined by IBM and Microsoft. [3] The RIFF format acts as a wrapper for various audio coding formats. Though a WAV file can contain compressed audio, the most common WAV audio format is uncompressed audio in the linear pulse-code modulation (LPCM) format.
Lossy audio compression typically works with a psychoacoustic model—a model of human hearing perception. Lossy audio formats typically involve the use of a time/frequency domain transform, such as a modified discrete cosine transform. With the psychoacoustic model, masking effects such as frequency masking and temporal masking are exploited ...