Alpine INE-W970HD Owners Manual - Page 92

OGG (USB Flash drive) Sampling rates: Up to 48kHz Bit rates: 8 - 500 kbps APE (USB Flash drive) Sampling rates: Up to 48kHz Channel number: 1ch, 2ch MP2 (USB Flash drive) Sampling rates: Up to 48kHz Bit rates: 16 - 384 kbps ID3 tags/WMA tags This device supports ID3 tag v1.0, v1.1, v2.2, v2.3, v2.4, and WMA tag Ver.1.x. If tag data is in an MP3/WMA/AAC file, this device can display the title (track title), artist name, and album name ID3 tag/ WMA tag data. For non-supported characters, "?" is displayed. The number of characters may be limited, or not correctly displayed, depending on the tag information. Playing back MP3/WMA/AAC/FLAC MP3/WMA/AAC/OGG/APE/MP2 files are prepared, then written to a USB flash drive. • Maximum numbers of playable files/folders USB Flash drive: 5,000 files/ 2,000 folders (including Root Folder) • Largest playable file size: 512 MB Playback may not be performed if a disc exceeds the limitations described above. If a file/folder name is long, the maximum possible number of files may decrease. • Both Audio and Video files are counted if their formats are playable on this unit. Media supported Media devices supported This unit can play back supported files from a USB flash drive, iPod, iPhone or Android phone connected to the unit. Corresponding File Systems This device supports FAT 16/32. The maximum nested folder depth is 15 (including the root directory). File names are limited to 256 characters (including the extension). Valid characters for folder/file names are letters A-Z (all caps), numbers 0-9, and '_' (underscore), Special Characters except Order of files Files are played back in the order that the writing software writes them to the disc. Therefore, the playback order may not be what's expected. Verity the writing order in the software's documentation. The playback order of the folders and files is as follows. (The following numbers may differ from actually displayed numbers.) Terminology Bit rate This is the "sound" compression rate specified for encoding. The higher the bit rate, the higher the sound quality, but also the larger the files. Sampling rate This value shows how many times per second the data is sampled (recorded). For example, music CDs use a sampling rate of 44.1 kHz, so the sound is sampled (recorded) 44,100 times per second. The higher the sampling rate, the higher the sound quality, but also the larger the volume of data. Encoding Converting music CDs, WAVE (AIFF) files, and other sound files into the specified audio compression format. Tag Song information such as track titles, artist names, album names, etc., written into MP3/WMA/AAC/FLAC/OGG/APE/MP2 (USB flash drive) files. Root folder The root folder (or root directory) is found at the top of the file system. The root folder contains all folders and files. It is created automatically for all burned discs. 92-EN