لطفا منتظر باشید ...
Moving up to professional editing with Adobe Audition 2.0
Adobe Audition 2.0 is a complete, professional, recording studio that offers advanced audio mixing, editing, and effects processing on an unlimited number of tracks. You'll want to use Adobe Audition 2.0 for music productions, radio broadcasts, or to enhance audio for your Premiere Pro videos.[View full size image]
Rather than give you a series of full-blown lessons on Audition, I will offer some brief demonstrations with a few step-by-step instructions. I will leave out some details but I think you'll get the gist of the added value Audition can bring to your video production.If you have a copy of Audition, fire it up and follow along. If you don't have a copy, you can download a 30-day trial version from the Adobe website. Go to www.adobe.com, select Products > Video and Audio and click Tryouts.Start in Premiere Pro. Select any of the Sonoma audio clips on the Timeline and select Edit > Edit in Audition. That opens Audition with that clip loaded in Audition's Edit mode, with the clip's waveform displayed.[View full size image]
Audition's powerful and helpful effects
To quickly see how much more Audition has to offer, click the Effects tab, open the Delay Effects group, and double-click Studio Reverb. It offers many more options than Reverb in Premiere Pro. And there are a dozen presets. Great Hall works well for a choir.
One thing you might notice about the clip's waveform is that its peaks do not reach all the way to the top or bottom. The clips used in the recording session mini-lesson all have relatively narrow dynamic ranges. Audition's Normalize effect can remedy that.To apply it, open the Amplitude Effects group and double-click Normalize.[View full size image]
Normalize amplifies a clip's audio. The purpose is to set the audio to a standard level, particularly if you are creating a CD with multiple tracks recorded under varying conditions.Normalize has several options. The easiest is to select a percentage of the full range up to 0 dB, when distortion kicks in. Since this is one of several choir tracks, it's best not to select 100%, because mixing multiple tracks (basically adding their loudness together) that have been normalized to 100% will lead to overly loud, distorted sound. In this case 65-75% will work well. You want the final mix's peak levels to climb to just below 0 dB.You typically normalize after you've mixed all your tracks.Audition has a Group Normalize feature that lets you Normalize multiple clips in one pass.After you make changes to your audio files you can save them in Audition and return to Premiere Pro. The changes will show up immediately there.Frequency-Space Editing
One of the most useful of Audition's features is Frequency-Space Editing. Here you can see your clip's sound. Brighter colors in this view indicate louder volume. The location on the Y-axis indicates frequency.As shown in the next figure, it's easy to spot and remove noisescoughs, page turns, or clicks on old vinyl records. Use the lasso tool to identify what you want to remove and click Repair Transient (in the Favorites tab). That removes the lassoed section and does something like a cross dissolve using the sound on both sides of that removed section.
The previous figure shows a click caused by the conductor's baton hitting his music stand. Listen to the before and after clips: Click Removal 12 Before and After in your Lesson 12 folder.
Mixer and Multitrack views
You've seen the Audio Mixer in Premiere Pro. Audition's mixer has several extra features that give you easier access to Lesson 12 folder and double-click on Lesson 12 Sonoma Audition.ses.[View full size image]
Loopology
Audition lets you create music from scratch using a technique Adobe calls Loopology. Audition ships with more than 5,000 music loopssnippets of music recorded by real musicians using real instruments (as opposed to MIDI files). Loops don't come with the trial version of Audition but I have provided some for your use in this lesson. Use them to experiment with Loopology and learn some of the basics.
| 1. | Select File > Open Session, navigate to the Lesson 12 Audition Loop Session Example folder (in the Lesson 12 folder) and double-click Lesson 12 Audition 2.0 Loop Session.ses.That opens the collection of clips shown in the next figure.[View full size image] |
| 2. | Click anywhere in the first audio track and press Alt+A to add a track directly below the first track. |
| 3. | Click on HappyGoLuckyE.cel in the Files panel, and click the Play button at the bottom of that panel.This is an Audition loop: a guitar lick in the key of E. |
| 4. | Drag and drop that clip in that second track (labeled Track 7) and then left-click and drag it to the beginning of the track. |
| 5. | As shown in the next figure, drag its right edge to make three instances of this loop (three measures or bars). Note the dotted, vertical lines indicating the bar lines between measures. |
| 6. | Take a look at the other clips in the first track (labeled RhythmGuitar). Create a duplicate of the contents of that track in the empty track below it by dragging those clips, one at a time, from the file window to the second track, right-clicking and dragging them into position, and lengthening them (if necessary) by dragging their lower right-edge to match the clips in the RhythmGuitar track at the top of the Multitrack view. |
| 7. | Click the Solo (S) buttons on the top two tracks, click the Play button (in the bottom left corner of the workspace) and compare the loops on the two tracks.The fifth loop in the second track (Track 7)HappyGoLuckyBwon't match. It's been transposed up a step in the top track. |
| 8. | Right-click on your copy of HappyGoLuckyB in the second track, select Loop Properties, and change Transpose Pitch to 1 half-step (refer to next figure).None of the remaining loops need transposing. |
| 9. | Feel free to take any of the loops used in this session and create your own custom music. Simply start fresh by selecting File > New Session. |
![[View full size image]](/image/library/english/13835_fig_12_37_alt.jpg){kind=link}