Moodle 2.1 Essential Training for Teachers
Illustration by Esther Watson

Preparing audio


Moodle 2.1 Essential Training for Teachers

with Chris Mattia

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Video: Preparing audio

Another type of media file that many teachers find is incredibly helpful as a teaching tool is audio files. Audio files can be used in a whole variety of different ways within your teaching. And Moodle allows you to very easily post audio files. It can post MP3, WAV, AIFF, several different other formats as well. The trick is getting Moodle to play the files, and in this movie I'll step you through a series of compression techniques using a very easy and common tool that's available on all platforms, the iTunes music player, and in order to compress a series of audio files.
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  1. 3m 26s
    1. Welcome
      1m 14s
    2. Course overview
      1m 34s
    3. Using the exercise files
  2. 1h 10m
    1. What you need to get started
      4m 27s
    2. Installing Moodle on a Mac
      9m 23s
    3. Configuring Moodle for the Mac
      5m 29s
    4. Installing Moodle on a Windows computer
      11m 35s
    5. Configuring Moodle for Windows
      7m 21s
    6. Creating a custom theme
      10m 0s
    7. Creating user accounts
      6m 4s
    8. Creating a new course
      6m 35s
    9. Just enough site administration
      9m 51s
  3. 1h 20m
    1. Logging in and getting oriented
      4m 23s
    2. Managing private files
      3m 41s
    3. Customizing your profile
      8m 26s
    4. Customizing course settings
      10m 14s
    5. Editing the header block
      5m 18s
    6. Posting a course syllabus
      3m 43s
    7. Communicating news to students
      4m 4s
    8. Managing files and folders
      6m 14s
    9. Posting lecture slides
      4m 37s
    10. Organizing course content
      12m 31s
    11. Setting up the Gradebook
      5m 4s
    12. Creating a simple assignment
      9m 45s
    13. Messaging students
      2m 49s
  4. 26m 45s
    1. HTML Editor overview
      5m 9s
    2. Formatting text
      5m 10s
    3. Creating internal links
      3m 14s
    4. Creating external links
      2m 42s
    5. Inserting local pictures with HTML
      4m 26s
    6. Creating equations
      6m 4s
  5. 47m 28s
    1. Preparing images
      5m 19s
    2. Posting image files
      3m 18s
    3. Posting a photo gallery
      3m 23s
    4. Creating header graphics in Fireworks
      7m 58s
    5. Preparing audio
      9m 41s
    6. Posting audio files
      4m 49s
    7. Preparing video
      7m 21s
    8. Posting QuickTime video as .mov files
      2m 43s
    9. Posting Flash video as .flv files
      2m 56s
  6. 36m 9s
    1. Understanding repositories
      3m 5s
    2. Configuring a Dropbox repository
      6m 13s
    3. Using a Dropbox repository
      4m 43s
    4. Configuring a Google Docs repository
      1m 15s
    5. Using a Google Docs repository
      5m 20s
    6. Configuring a Flickr repository
      6m 13s
    7. Using a Flickr repository
      4m 5s
    8. Configuring the YouTube videos repository
      1m 7s
    9. Using the YouTube videos repository
      4m 8s
  7. 38m 50s
    1. Understanding resources and activities
      1m 9s
    2. Posting a file or document
      8m 36s
    3. Displaying a folder of documents
      4m 33s
    4. Using a label to bring your course to life
      6m 42s
    5. Creating a custom web page
      10m 33s
    6. Posting a URL for a web resource
      7m 17s
  8. 25m 51s
    1. Assignments overview
      1m 43s
    2. Advanced uploading of files assignment
      11m 32s
    3. Online text assignment
      4m 20s
    4. Uploading a single file assignment
      3m 42s
    5. Offline activity assignment
      3m 21s
    6. Assignment and Gradebook interactions
      1m 13s
  9. 35m 34s
    1. Creating a live chat room
      4m 57s
    2. Understanding Choice, Feedback, and Survey activities
      1m 23s
    3. Creating a Choice activity
      5m 10s
    4. Creating a customized Feedback activity
      4m 47s
    5. Adding a multiple choice question
      3m 14s
    6. Adding a dependent followup question
      3m 7s
    7. Adding a rating question
      2m 39s
    8. Adding an open response question
      2m 36s
    9. Analyzing Feedback results
      4m 16s
    10. Adding a standardized survey
      3m 25s
  10. 17m 18s
    1. Creating a main glossary
      5m 29s
    2. Adding concepts to the glossary
      2m 53s
    3. Enabling glossary auto-linking
      2m 53s
    4. Creating a secondary glossary
      6m 3s
  11. 11m 56s
    1. Creating a forum
      4m 40s
    2. Seeding a forum with questions
      3m 9s
    3. Participating in a forum
      4m 7s
  12. 31m 24s
    1. Creating a wiki
      4m 15s
    2. Wiki editing basics
      5m 28s
    3. Creating new pages
      2m 47s
    4. Creating lists
      3m 42s
    5. Adding images
      3m 53s
    6. Creating external links
      4m 24s
    7. Creating a table
      6m 55s
  13. 1h 4m
    1. Online assessment overview
      1m 20s
    2. Creating question pool categories
      2m 24s
    3. Creating a first question
      7m 10s
    4. Creating true/false questions
      3m 1s
    5. Creating multiple choice questions
      8m 22s
    6. Creating short answer questions
      8m 19s
    7. Creating essay questions
      4m 59s
    8. Creating match questions
      7m 10s
    9. Creating a quiz
      9m 0s
    10. Adding questions to a quiz
      2m 20s
    11. Changing the order of questions
      3m 1s
    12. Assigning quiz points
      1m 35s
    13. Previewing a finished quiz
      5m 50s
  14. 39m 38s
    1. Gradebook overview
      4m 53s
    2. Moving an assignment into a category
      1m 33s
    3. Completing assignments as a student
      11m 31s
    4. Grading assignments
      5m 5s
    5. Using quick grading
      1m 28s
    6. Grading assignments with uploaded files
      1m 58s
    7. Grading offline assignments
      1m 26s
    8. Grading an online quiz
      5m 1s
    9. Exporting grades to Excel
      2m 48s
    10. Importing grades from Excel
      3m 55s
  15. 9m 55s
    1. Calendars and events overview
      4m 8s
    2. Creating a new event
      2m 40s
    3. Creating a repeating event
      3m 7s
  16. 50m 41s
    1. Course administration overview
      2m 54s
    2. Managing course settings
      9m 5s
    3. Enabling completion tracking
      2m 20s
    4. Setting tracking for resources and activities
      3m 38s
    5. Managing tracking settings
      3m 51s
    6. Reporting on course tracking
      1m 32s
    7. Managing user roles
      4m 2s
    8. Backing up your course
      3m 36s
    9. Restoring data from a backup
      4m 50s
    10. Restoring a Moodle 1.9 course into Moodle 2.1
      6m 25s
    11. Importing content to another course
      3m 46s
    12. Resetting a course
      4m 42s
  17. 2m 6s
    1. Additional resources
      1m 37s
    2. Goodbye

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Watch the Online Video Course Moodle 2.1 Essential Training for Teachers
9h 53m Beginner Aug 22, 2011

Viewers: in countries Watching now:

In this course, author Chris Mattia helps educators create online courses that complement classroom-based instruction and foster student interaction using the free learning management system Moodle. The course details the basics of setting up a test environment, disseminating course information, creating forums, and assessing student progress. Tutorials on building course materials with Moodle's built-in HTML editor, preparing and posting various types of media, uploading assignments, and evaluating tests automatically are also included.

Topics include:
  • Installing and configuring Moodle
  • Creating assignments students can complete online
  • Posting instructions on the course home page
  • Messaging students
  • Configuring Dropbox, Google Docs, Flickr, and YouTube repositories
  • Creating a custom course web page
  • Building a live chat room
  • Designing surveys
  • Setting up course-specific glossaries
  • Seeding a forum with questions
  • Creating a wiki for students to contribute content
  • Developing multimedia exams to assess course comprehension
  • Handling course administration and settings
  • Backing up and restoring a course
  • Importing a Moodle 1.9 course into Moodle 2
Education + Elearning
Chris Mattia

Preparing audio

Another type of media file that many teachers find is incredibly helpful as a teaching tool is audio files. Audio files can be used in a whole variety of different ways within your teaching. And Moodle allows you to very easily post audio files. It can post MP3, WAV, AIFF, several different other formats as well. The trick is getting Moodle to play the files, and in this movie I'll step you through a series of compression techniques using a very easy and common tool that's available on all platforms, the iTunes music player, and in order to compress a series of audio files.

Now we're going to start off in a Chapter 04 exercise files. There's an Audio folder and inside of there is a folder called RAW, and inside of here I've created a whole series of audio recordings of myself simply saying the name of a bunch of different Coral Reef species. I'll go ahead and play one of these for you now, so you can hear what we're going to use. Acropora palmata. They are pretty basic files. The size of the file is about 2.9 MB, but we can do better than that, and the default file format that I left them in after I recorded them are QuickTime movies.

Now what we want is we want to get them first converted into AIFF so that they have the correct bit rate, and then we're going to go ahead recompress these files into MP3 files that are appropriately compressed for displaying within the Moodle browser, and they will play within the default players. Let's begin by opening up a copy of iTunes. Now if you don't have a copy of iTunes, you can go to and download a copy for free. Get it installed on your machine and once you've iTunes set up all, you need to do is go into the RAW folder.

Now if you're using a Mac, go ahead and use the RAW Mac folder, and all of these files are MOV files or QuickTime movies. If you're using Windows go ahead and go into the RAW Windows folder, and that folder has a bunch of WAV or WAV files, which is more common on the Windows platform. Go ahead and click on the first file and then press Command+A, or Ctrl+A, on your keyboard to select all of the files. Then simply drag them all down into the iTunes music player, and iTunes will go ahead and automatically import all of those files for you.

I'm going to go ahead and minimize my Finder window and my browser to get them both out of my way for right now, so we can just focus on iTunes. And the next thing that's helpful is to add another column of information here. Either Ctrl+Click or right-click on the menu bar at the top and you will get a dropdown menu that lists all of the additional headings that you can add. Come down until you find the Kind option. Select Kind and we're going to go ahead and get rid of the sidebar here for Ping, and I'm going to grab right here in between the Kind.

I'm going to drag that out a little bit, so you can clearly see that all of these files that we have are now QuickTime files. The next thing we need to do is to go ahead and change our compression settings within iTunes. So if you're on a Mac, go up to the iTunes menu; on a PC go to the Edit menu, and then select Preferences or Settings. You want the General tab. Then you want to come about three quarters of the way down and find the section where it says, "When you insert a CD." Click on the button for Import Settings. The default settings here are generally set to AAC Encoder.

Click that dropdown menu, and we want to do the first step here, by converting all of these files to AIF files. So select the AIFF Encoder and then under Settings, instead of Automatic, choose Custom. The AIFF Encoder settings come up. What we want to do is hit the dropdown menu for Sample Rate. The player that's built into Moodle likes some multiple of 11.127 kHz. So we're going to select a 44.100 kHz as our default sample rate.

We're going to leave the Sample Size set to Auto and the Channel set to Auto and simply click OK. We'll click the OK button for the Import Settings, and then we'll click the OK button to close our Preferences. Click on the first item in our list of audio files, in this case Acropora_palmata, scroll down to the bottom, hold down the Shift key on your keyboard, and click on the bottom item, in this case Yellow_Tubes_Sponge. This selects all the files that we just imported. Go up to the Advanced menu and you'll notice you've a new option in here, Create AIFF Version.

Go ahead and click on that and iTunes will step through and automatically create a new version of each of these files for us in the new file format. You can see that all of those files have now shown up interspersed amongst the original QuickTime files. Now this would be a little tricky to go through and individually select each of these, but since we have the Kind heading, this is not a problem. Simply click on Kind and iTunes automatically sorts all of the audio files by Kind. We have the first step done.

Now we've to convert all these AIF files into a specifically configured MP3 file. So let's go back up to either the iTunes or the Edit menu and go down to Preferences or Settings, back to General, click on Import Settings again, and this time for Import Using, click the dropdown menu and choose MP3 Encoder. Again, click the dropdown menu for Settings and select Custom. This will bring up the MP3 Encoder settings. You want to set the Stereo Bit Rate down to 64 kbps.

You want to make sure that Using Variable Bit Rate Encoding or VBR is deselected. Under the Sample Rate click the dropdown menu and select the same 44.100 kHz that we selected in the previous step. Under Channels go ahead and select Stereo and under Stereo mode, make sure it's set to Joint Stereo. You want to uncheck the box for Smart Encoding Adjustments, and you do want to leave the box checked for Filter Frequencies Below 10 kHz.

So with these settings go ahead and click the OK button. iTunes will ask if you want to change your recommended settings. Just go ahead and leave those as they are, because you're probably going to use iTunes for some of your music as well. Click OK and click OK for the Preferences to close that window. Now this time when we go to select our files, simply click on Acropora_palmata at the top. Make sure you're getting the AIFF version. Scroll down until you find the Yellow_Tubes_Sponge. That's the last one of the AIFF versions. Hold down the Shift key on your keyboard and click on Yellow_Tubes_Sponge.

This will select all of just the AIFF files. Next, go back up to Advanced, and there again you have a new item to Create MP3 Version. Click the menu item for that, and now we can see that all of the MP3 versions of all of our files have been created for us. The final step with iTunes is to export these files out and into a folder on our desktop. Let's start by creating that folder on our desktop and either right-click or Ctrl+Click on the desktop and choose New Folder.

Name the file Audio and then simply click on the first Acropora_palmata for MP3 in iTunes, scroll down to the bottom of the MP3 listings, hold down the Shift key and click on the Yellow_Tubes_Sponge, and then simply click and drag all 34 files and drop them into the Audio folder. If you double-click on the Audio folder, you can now see that all those MP3s have been created. And I'm going to go ahead and play one of these files for us, so we can hear what the file sounds like now that it's been compressed.

(text-to-speech reader: Acropora palmata.) So this file that used to be 2.5 megabytes is now only 29 KB. The audio sounds pretty good, and we're ready to go ahead and post this up to our course. Not every audio file is going to compress with exactly these settings, so you may need to go through and try your audio files one by one to make sure that they all sound good with these particular settings. Now if you're also exporting music or some other type of audio, you may need to go in and adjust some of the settings.

But these setting should hold pretty well, and they will work with the Moodle player. Let's go ahead and close our folder here, and in order to upload a whole folder of files to Moodle, we first need to zip them. So either right-click or Ctrl+Click on the folder and on a Mac choose Compress Audio, on a PC choose Send to > Compress Zip, and our file has been created. We can then bring back up our web browser. We're back in Moodle, and we can go ahead and scroll down until we find our My private files section. Go ahead and click the Manage my private files button.

We can go into our BIOL432 course, and I'm going to go ahead and hit the Add button now. Make sure you've got the Upload a file item selected from your File picker on the left-hand side. Click the Browse button, and we should be at our Desktop already; if not, go ahead and navigate out to your desktop and select on the file. Go ahead and click the Open button. Hit the Upload this file. is right there. We can hit the little menu item next to it and say Unzip. Here is our _MACOSX file since we did this on the Mac, and we can just go and delete that resource if you're on a Mac.

Go ahead and hit the Yes button, and there we go. We have our Audio folder. We'll go ahead and click inside of there, and now we can see all of our MP3 files have been uploaded to Moodle. Go ahead and scroll all the way to the bottom of the page and be sure to click the Save changes button so all those files remain in your private files section. And in the next movie, we'll show you how to post those audio files into your Moodle course.

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