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.

Convert m4a to wav audacity