In Live on Windows M4A files can only be opened in conjunction with Apple QuickTime. Windows: M4A is an Apple file format which is not natively supported on Windows.The audio stream in a MP4/M4A container is encoded either in the lossy AAC (Advanced Audio Coding) format, or in the lossless ALAC (Apple Lossless Audio Codec) format. MP4 is a container format for video and audio streams. Mac: on Mac, the required external codec for MP3 files comes with the operating system, which means that those formats behave in Live like natively supported file formats.Windows: on Windows, Live encodes MP3 files either with the DirectX codec which is coming with the system, or with Apple QuickTime (32-bit Live only), or with a third party codec.MP3 is a lossy compressed audio format developed by the Fraunhofer Institute. MP3 (MPEG-1 and/or MPEG-2 Audio Layer III) The file formats MP3 and MP4/M4A, AAC, ALAC require an external codec in order to be used in Live. It only supports OGG files containing a Vorbis audio stream (OGG Vorbis). This combination is currently not support by Live. ![]() An OGG container may also contain a FLAC audio stream (OGG FLAC). Both standards are free and developed by the Xiph.Org Foundation. OGG is a container format for video and audio streams which is most popular for containing a lossy compressed Vorbis audio stream. Live supports FLAC files with a resolution of 16-bit or 24-bit. The FLAC audio format is a free lossless compressed audio format, developed by the Xiph.Org Foundation. snd can only be loaded after changing the file extension to. aifc can only be loaded after changing the file extension to. 8-bit, 16-bit, 24-bit integer Big Endian and Little Endian (pcm, twos, sowt, s8).Live supports AIFF and AIFF-C files with the following features: It was developed by Apple and belongs to the same family of RIFF/PCM audio files as WAV. mp3ĪIFF is an audio format very similar to WAV. WAV files with an audio stream encoded as MP3 might open in Live after changing the file extension from.8-bit, 16-bit, 24-bit integer Little Endian (pcm, aflt, araw).Live supports uncompressed WAV files with the following features: The WAV file format, developed by Microsoft and IBM, is an application of the Resource Interchange File Format (RIFF) bitstream format and belongs to the family of PCM audio files. ![]() The group of natively supported file formats includes WAV, AIFF, AIFF-C, FLAC and OGG Vorbis. This group involves all formats where the required codec is included with Live, so no additional software or external codec needs to be installed or accessed. The supported audio file formats can be divided in two main groups, natively supported formats and formats which require an external codec. (The locations of the Decoding Cache can be found in the Additional Information section of this article). The converted file is stored in Live's Decoding Cache. All other formats are converted into WAV when being imported. WAV and AIFF (AIFF-C) are the only formats which Live can load without conversion. In general, Live supports audio files with 1 or 2 channels, with a resolution of 8, 16, 24 or 32-bit and any sample frequency up to 192kHz. This is a form of copyright protection and as such, you won't be able to import these files into Live. Live doesn't support DRM-protected files. m4a files purchased from iTunes may be DRM-protected. Other: Certain audio files, especially.Channels: Most audio file formats don’t only allow to store a mono or stereo audio stream but also multi-channel audio streams (-> surround).The resolution of an audio file is determined by two parameters, the sample frequency and the bit depth (or kb/s for compressed formats). Resolution: Basically all audio file formats support different resolutions.MP4 and OGG are container formats, which can contain audio streams of different formats, as well as video streams, metadata and for example subtitles. The audio stream in a WAV file for example can be encoded in a vast number of different compressed or uncompressed formats, it can even contain an audio stream encoded as MP3. Codec: Many audio file formats are “wrapper” or container formats, which means that the file extension alone doesn’t tell how the contained audio stream is encoded. ![]() ![]() The following four characteristics of an audio file determine if it is supported by Live or not: To understand why certain files can’t be imported or played back even though they belong to a group of supported file formats, we need to have a closer look at the different file formats. Live supports a large number of different audio formats and resolutions.
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