Easy-to-follow video tutorials help you learn software, creative, and business skills.Become a member

Viewing audio waveforms and spectral displays

From: Soundbooth CS5 Essential Training

Video: Viewing audio waveforms and spectral displays

Soundbooth lets you see audio. You can view a file's waveform or something called a Spectral Frequency Display, which is a really cool feature in Soundbooth. Both views, especially the Spectral Frequency Display, come in real handy when you edit audio. Let's just start by looking at a monaural track. This is a monaural clip of a voice. You can see it's only one waveform. (Woman singing: When the sun sets on the water's edge) If I look at a stereo waveform, like this one, by double-clicking on it, you can see that's two tracks and the standard way to look at stereo waveforms inside any kind of audio editing program is that the upper channel is the left channel and the lower one is the right channel.

Viewing audio waveforms and spectral displays

Soundbooth lets you see audio. You can view a file's waveform or something called a Spectral Frequency Display, which is a really cool feature in Soundbooth. Both views, especially the Spectral Frequency Display, come in real handy when you edit audio. Let's just start by looking at a monaural track. This is a monaural clip of a voice. You can see it's only one waveform. (Woman singing: When the sun sets on the water's edge) If I look at a stereo waveform, like this one, by double-clicking on it, you can see that's two tracks and the standard way to look at stereo waveforms inside any kind of audio editing program is that the upper channel is the left channel and the lower one is the right channel.

(Music playing.) You'll notice that when you go to Stereo, you go from one audio level Sound Level Display up here. (Woman singing: a sky of yellow -) You go here, two show up. (Music playing.) It'll show you left on the top or right on the bottom for the various Decibel levels or Amplitude, as it's called. Now if you go to 5.1, which is 6 channels, you can see it's marked Left (L), Right (R), left surround, right surround, center, which you'll usually reserve for dialog, spoken word or the vocalists, and then low-frequency effects here, which is usually the subwoofer for the bass. And that can be located anywhere, but usually it's located kind of towards the center from the room when you are listening to 5.1 surround.

And notice that when you change the 5.1 surround, you've got 6 level indicators here. (Music playing.) Let's go back to stereo here. Let me show you the Spectral Frequency Display. There are two ways to view that and I'll start by looking at the monaural view first here. Here's mono looking at the waveform display and I want to go to the Spectral Frequency Display. I can click on this button and that will pop it open or close it, or I can simply drag up here in the bottom, right down here below and just drag that guy up. There we are.

You're wondering what the heck this all means. I want to zoom in on that a little bit and I've used the Zoom tool before. I'll use that again and I'm going to zoom in a little bit. And you can see how this works. The Spectral Frequency Display shows you a couple of things. The bright yellow colors indicate a louder volume level at that frequency. Here are the frequencies along the side. So we are looking at a frequency here of about 200 cycles per second, which is relatively low for a woman's voice, but here she is singing a little bit higher.

This is almost like 440 again, almost A above middle C. You can see how her frequency changes and it shows the volume level. The bright yellow is a louder sound at these varying frequencies. And you can see that she has a little vibrato. Let me just play that so you can kind of get a sense. (Woman singing: When the sun sets on the water's edge, a sky of yellow, blue and) So notice when she said, "blue," her voice went up in pitch and so does this little indication here in the Spectral Frequency Display, and that she sang a little louder there, it's a little bit brighter yellow. And the darker colors here indicate overtones and lower volume levels, but different frequencies, so you can see the frequencies are approaching the limits of human hearing as they go above 10,000 cycles per second here.

This is called a Logarithmic Display because when you go up an octave, you double the frequency each time. So, if you go from 200 to 400, that's one octave, and then 400 to 800 is one octave, and 800 to 1600, well, if you weren't looking at it logarithmically, you would compress all the bass frequencies into a every small area, and then you'd expand all the high-frequencies into a wide area and it really would be kind of an unrealistic view of sound. But we can actually look at it that way by going over to this Remove a Sound button, and I'll talk about removing a sound in other movies.

I'll click that and I want to change the Vertical Scale from 95 to 0%. That makes it arithmetic and compresses all the bass frequencies here from 4000, which is basically as high as any human being can sing, more or less, down to the lowest level any human being can sing, and that's the entire human voice range there, just about. All the rest of this stuff is above it, more or less, in terms of hitting an exact note instead of overtones. So, it really isn't a very realistic way to look at something, but if you do want to look at just the high frequencies, that's the way to do it, but I'm going to go back and set this guy back to 95% and have it be logarithmic again.

Let's look at a stereo signal and see how that's different. That puts each channel here in its own spectral display. Now I'll zoom in on that again so you can get a better picture of how that looks, and you can see the various keyboards. This is a keyboard piece. I'll click here and you can see the notes change. (Music playing.) It's keyboard mixed with bass there. If you go to the 5.1 display, it just gets insane now. All the various channels show up inside the Spectral Frequency Display. Now I showed you how to zoom in on an area using the Zoom tool.

I am going to show you a couple of other ways to do that. I am going to go back to the keyboard and bass, so it's little simpler looking. Now before, we've used the Zoom tool here with this little Plus sign and clicking on this little magnifying glass and zoomed in here inside the clip itself to zoom in on something. I am going to press the press Backslash key to zoom all the way out. I am going to zoom in, instead, using the Time Display, so I'm going to go back to my Time Selection tool, the T shortcut. I'm going to right-click here inside this Time Display, right-click and drag, and that's another way to zoom in, just by right-clicking and dragging.

Notice there is little magnifying glass with a double arrow there. You can zoom into a very specific time, in terms of samples here, or I can right-click and change to Hours, Minutes and Seconds (HMS), same routine, right-click and drag. That zooms into a very tight view. That's one way to zoom in. You can also zoom into the frequency, which comes in really handy if you are going to edit a particular frequency. So, I'm going to press the Backslash key to zoom out again. If I want to zoom in on the frequency, I'll go to the Mono View, just so can see that little more clearly. If I want to zoom in, let's say, on this frequency right here, I can right-click inside the Frequency Display, and drag.

That'll show me just the region around 200 cycles per second. I have a very narrow view of that particular frequency from basically all about 110 to 270 or so hertz, or cycles per second. If I want to go zoom all the way back out again, I right-click again and select Zoom Out Full. So, you can zoom in on the frequency or zoom in on the time using either the Zoom tool here for the time, or you can right-click inside the Time Ruler here and zoom in that way and then zooming in on the frequency, you can do that by right-clicking inside the Frequency Ruler.

So, that's basically how you can view sound in Soundbooth.

Show transcript

This video is part of

Image for Soundbooth CS5 Essential Training
Soundbooth CS5 Essential Training

52 video lessons · 14786 viewers

Jeff Sengstack
Author

 
Expand all | Collapse all
  1. 4m 51s
    1. Welcome
      1m 13s
    2. What is Soundbooth CS5?
      2m 30s
    3. Using the exercise files
      1m 8s
  2. 18m 4s
    1. Taking a look at basic sound waves
      3m 53s
    2. Taking a look at complex sound waves
      6m 43s
    3. Understanding digital audio concepts
      7m 28s
  3. 14m 45s
    1. Understanding the workflow
      5m 35s
    2. Touring the workspace
      3m 44s
    3. Customizing the workspace
      5m 26s
  4. 13m 11s
    1. Opening and importing files
      3m 59s
    2. Setting up recording hardware
      2m 35s
    3. Recording vocals and instruments
      6m 37s
  5. 1h 3m
    1. Playing and monitoring audio
      5m 10s
    2. Viewing audio waveforms and spectral displays
      6m 24s
    3. Selecting audio
      9m 14s
    4. Trimming and deleting audio
      3m 59s
    5. Copying, cutting, and pasting audio and inserting silence
      7m 55s
    6. Adjusting volume
      11m 21s
    7. Using specialized volume techniques
      6m 54s
    8. Creating and using loops
      4m 42s
    9. Stretching time and shifting pitch
      5m 14s
    10. Working with video files
      2m 22s
  6. 26m 50s
    1. Identifying noises: Hums, hisses, clicks, and pops
      5m 45s
    2. Removing background noise: Audio tape hiss
      7m 55s
    3. Removing vinyl record clicks and pops
      3m 57s
    4. Removing individual sounds
      9m 13s
  7. 13m 27s
    1. Previewing Soundbooth effects
      5m 32s
    2. Applying and adjusting standard effects
      4m 58s
    3. Applying and customizing advanced effects
      2m 57s
  8. 48m 25s
    1. Applying reverb and echo: Analog Delay and Convolution Reverb
      8m 46s
    2. Using delay-based effects: Chorus/Flanger and Phaser
      6m 8s
    3. Understanding sound-level effects: Compressor and Dynamics
      7m 0s
    4. Applying equalization effects: Graphic and Parametric
      11m 14s
    5. Exploring other special effects: Distortion and Vocal Enhancer
      7m 58s
    6. Setting the all-in-one effect: Mastering
      7m 19s
  9. 46m 42s
    1. Understanding multitrack concepts
      1m 16s
    2. Building a multitrack file
      7m 5s
    3. Adjusting track and clip volume and panning
      8m 54s
    4. Adding effects to individual tracks
      7m 38s
    5. Using Soundbooth sound effects in your multitrack file
      6m 38s
    6. Using three multitrack editing techniques: Duplicating, splitting, and cross-fading
      6m 15s
    7. Working with video in multitrack
      2m 49s
    8. Using professional production studio mixing techniques
      6m 7s
  10. 17m 13s
    1. Understanding how scores work
      3m 30s
    2. Previewing, downloading, and inserting scores into multitrack files
      4m 45s
    3. Adjusting score duration, intensity and parts
      8m 58s
  11. 10m 42s
    1. Dynamically linking to Premiere Pro and After Effects projects
      4m 31s
    2. Turning spoken dialogue into searchable metadata
      6m 11s
  12. 21m 42s
    1. Saving snapshots
      6m 23s
    2. Saving entire files or selected ranges
      11m 59s
    3. Saving and mixing down multitrack files
      3m 20s
  13. 10s
    1. Goodbye
      10s

Start learning today

Get unlimited access to all courses for just $25/month.

Become a member
Sometimes @lynda teaches me how to use a program and sometimes Lynda.com changes my life forever. @JosefShutter
@lynda lynda.com is an absolute life saver when it comes to learning todays software. Definitely recommend it! #higherlearning @Michael_Caraway
@lynda The best thing online! Your database of courses is great! To the mark and very helpful. Thanks! @ru22more
Got to create something yesterday I never thought I could do. #thanks @lynda @Ngventurella
I really do love @lynda as a learning platform. Never stop learning and developing, it’s probably our greatest gift as a species! @soundslikedavid
@lynda just subscribed to lynda.com all I can say its brilliant join now trust me @ButchSamurai
@lynda is an awesome resource. The membership is priceless if you take advantage of it. @diabetic_techie
One of the best decision I made this year. Buy a 1yr subscription to @lynda @cybercaptive
guys lynda.com (@lynda) is the best. So far I’ve learned Java, principles of OO programming, and now learning about MS project @lucasmitchell
Signed back up to @lynda dot com. I’ve missed it!! Proper geeking out right now! #timetolearn #geek @JayGodbold
Share a link to this course

What are exercise files?

Exercise files are the same files the author uses in the course. Save time by downloading the author's files instead of setting up your own files, and learn by following along with the instructor.

Can I take this course without the exercise files?

Yes! If you decide you would like the exercise files later, you can upgrade to a premium account any time.

Become a member Download sample files See plans and pricing

Please wait... please wait ...
Upgrade to get access to exercise files.

Exercise files video

How to use exercise files.

Learn by watching, listening, and doing, Exercise files are the same files the author uses in the course, so you can download them and follow along Premium memberships include access to all exercise files in the library.


Exercise files

Exercise files video

How to use exercise files.

For additional information on downloading and using exercise files, watch our instructional video or read the instructions in the FAQ.

This course includes free exercise files, so you can practice while you watch the course. To access all the exercise files in our library, become a Premium Member.

Join now "Already a member? Log in

Are you sure you want to mark all the videos in this course as unwatched?

This will not affect your course history, your reports, or your certificates of completion for this course.


Mark all as unwatched Cancel

Congratulations

You have completed Soundbooth CS5 Essential Training.

Return to your organization's learning portal to continue training, or close this page.


OK
Become a member to add this course to a playlist

Join today and get unlimited access to the entire library of video courses—and create as many playlists as you like.

Get started

Already a member?

Become a member to like this course.

Join today and get unlimited access to the entire library of video courses.

Get started

Already a member?

Exercise files

Learn by watching, listening, and doing! Exercise files are the same files the author uses in the course, so you can download them and follow along. Exercise files are available with all Premium memberships. Learn more

Get started

Already a Premium member?

Exercise files video

How to use exercise files.

Ask a question

Thanks for contacting us.
You’ll hear from our Customer Service team within 24 hours.

Please enter the text shown below:

The classic layout automatically defaults to the latest Flash Player.

To choose a different player, hold the cursor over your name at the top right of any lynda.com page and choose Site preferencesfrom the dropdown menu.

Continue to classic layout Stay on new layout
Exercise files

Access exercise files from a button right under the course name.

Mark videos as unwatched

Remove icons showing you already watched videos if you want to start over.

Control your viewing experience

Make the video wide, narrow, full-screen, or pop the player out of the page into its own window.

Interactive transcripts

Click on text in the transcript to jump to that spot in the video. As the video plays, the relevant spot in the transcript will be highlighted.

Are you sure you want to delete this note?

No

Your file was successfully uploaded.

Thanks for signing up.

We’ll send you a confirmation email shortly.


Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

Keep up with news, tips, and latest courses with emails from lynda.com.

Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

   
submit Lightbox submit clicked
Terms and conditions of use

We've updated our terms and conditions (now called terms of service).Go
Review and accept our updated terms of service.