hầu hết các chuyên gia Linux xem xét trình bao để được nhiều hơn nữa mạnh mẽ hơn so với ảnh minh hoạ. Bởi vì vỏ có được khoảng thời gian dài, nhiều tính năng tiên tiến đã được xây dựng vào chúng. Nhiều trường học cũ quản trị viên Linux | Tip When I configured my sound card the default sound level was a bit low for my taste. I inserted a music CD to have something to listen to. Then I ran the aumix command to adjust the volume levels. Volume Vol should be highlighted when aumix opens. You can use the right and left arrows to adjust volume levels. Use the up and down arrows to choose particular sound devices speaker line mic CD and so on. With a device highlighted use the tab key to be able to adjust balance for the device. Type s to save the changes and q when you are done. Audio file conversion If you have a sound file in one format but you want it to be in another format Linux offers some conversion tools you can use to convert the file. The Sox utility can translate to and from any of the audio formats listed in Table 8-1. Table 8-1 Sound Formats Supported by Sox Utility File Extension or Pseudonym Description File Extension or Pseudonym Description .8svx 8SVX Amiga musical instrument description format. .aiff Apple IIc IIgs and SGI AIFF files. May require a separate archiver to work with these files. .au Sun Microsystems AU audio files. This is a popular format. .cdr CD-R files used to master compact disks. .cvs Continuously variable slope delta modulation which is used for voice mail and other speech compression. .dat Text data files which contain a text representation of sound data. .gsm Lossy Speech Compression GSM used to shrink audio data in voice mail and similar applications. .hcom Macintosh HCOM files. .maud Amiga format used to produce sound that is 8-bit linear 16-bit linear A-law and u-law in mono or stereo. .ossdsp Pseudo file used to open the OSS dev dsp file and configure it to use the data type passed to Sox. Used to either play or record. .sf IRCAM sound files used by CSound package and MixView sample editor. .smp SampleVision files from Turtle Beach used to communicate with different MIDI samplers. .sunau Pseudo file used to open a dev audio file and set it to use the data