Subtitles of the Movie

In this video you'll learn to extract audio tracks from a video. In this case I've got my Spring in Winter video queued up. I'm actually going to want to extract three different audio tracks from this file so I'm going to select the file and duplicate it twice, that way I can queue up all three, customize my settings, do one extraction while I have myself a pot of tea or something. So, the first format that I want to extract to is an AIFF file, Audio Interchange File Format. That will be a non-compressed, Mac-compatible audio track. The second track I want to select will be a WAV file, Waveform Audio File, a Windows friendly, non-compressed audio track. Finally, I want to extract a web friendly MP3. This will be a compressed audio file that will be easy for people to download and easy for me to make available at my website for people who want to download the audio track for my movie. Let's take a look at the Presets available for each of these options. For my AIFF file there's just one setting available. Similarly for my WAV file, just one setting. For my MP3 there are two settings: 128 kilobytes per second is the standard setting for audio files from iTunes; 256 is higher quality. If I want to tweak these settings I can do that by selecting a video and going to my Settings dialog. Let's look at the options for an AIFF file. Now, not surprisingly there's nothing over on the left side of my screen because I can't preview the video; there won't be a video. I'm simply extracting an audio file and somewhat disappointingly, I also can't Preview the extracted audio track. I'm going to have to actually extract it and then listen to it and see if I like that quality. If you decide to customize your Presets for AIFF extraction you can go into the Audio tab and choose a Sample Rate. The higher the sample rate the higher the quality of the audio; the lower the lower the quality of the audio. Now in this case I'm going to reduce my Sample Rate slightly from 48,000 Hertz to 44,100 Hertz. That will still provide me with CD quality audio, but provide a somewhat smaller file for downloading purposes. I could also reduce file size by going from stereo to mono and I can adjust the quality of the audio and reduce the file size by making the Sample Rate smaller. Now as I explained in the previous video the higher the Sample Rate the higher the quality and the higher the file size. However, there's no point in selecting a higher Sample Rate or higher Sample Type in Media Encoder than your original recording because you're not going to improve the quality of the sound through Media Encoder. You can only reduce the quality of the sound, so keep that in mind when you make your decisions. I'll OK these Settings and let's take a look at the options for adjusting the quality of a WAV file, which are very similar. Again, I will have to not use a Preset but go into the Audio tab and choose a customized Sample Rate and again here I'll reduce the Sample Rate slightly to reduce my file size and I might even decide to reduce the Sample Type to 8 bits, which, that would be disappointing quality but I might make a call that that's appropriate for a downloadable audio track. In any event, having made my selections here again I'll choose OK and this file's ready to be queued up. Now let's take a look at the options that we have in compressing the sound track from this audio into an MP3 file. I'll click on Settings to open the Settings dialog and notice that I have the two standard Presets: regular quality or high quality. If I want to customize that I can choose a whole range of compression from 16 kilobytes per second, which is very low quality, to 320 which is very high. In this case I'm going to go with 256 kilobytes per second, which is really a very good quality stereo sound track. And with those Settings selected I'll click OK. Now as soon as I start my Queue I won't see a Preview down here in the lower right of the Queue Screen, but I will see the videos get extracted, so right now audio tracks are being extracted from all my videos, they've been extracted and saved and I can make them available for download.