### What's a podcast?

Podcast according to wikiPedia

### Project: Audio Editing using Audacity

You need to do this project using Audacity

- Download Audacity software from the audacity site:

  - Audacity

- Videos on how to do this project

    vidoe 1
    vidoe 2

- Audacity Tutorial for this project

### Part I (30 points)

Rip a song from a CD that you like and would like to make a commentary about.

- Pick a track of music from a CD

  - Use Window Media Player to Rip the music as WAV format. How to rip the music with windows OS
  - If you are using Mac, on the desktop, you should see an icon after inserting your CD, open the CD, drag and drop the sound to the desktop. It's in AIFF format with Mac.

- Start Audacity, open your ripped song and make sure the sampling rate is 44,100 and bit depth is 32 bits.
- Edit the track to be 75 seconds in length and use Audacity to do the following.

  - make the music fade in (over 10 seconds) at the beginning and fade out (over 10 seconds) at the end ( -5 points if you don't have).
  - During the first 20 seconds the background music should come from the left( -5 points if you don't have).
  - During the last 20 seconds the background music should come from the right( -5 points if you don't have).
  - For the remaining 35 seconds the background music should come from the center( -5 points if you don't have).

- Using Audacity, add a track to record your voice.
- Make certain that your voice-over can be clearly heard over the music by adjusting the gain value of the music to -6 and adjusting the gain value of your voice to +6 ( -5 points if it is not the case).

Requirements

- When record your voice-over , you must include your name in the recording ( -5 points if you don't have).
- The content of your voice-over should be appropriate (-100 points if it is inapporiate).
- Save the Project (it should have .aup as file extension). You could save the project once you get started. The earlier the better. No need to wait till you complete the above steps.
- Export your sound file as a .ogg file (44,100Hz, 32 bits),
- Reminder: any time saving anything for this class, your userID should be part of the file name( -5 points if you don't have).

Format | File size | Download
OGG(44,100Hz and 32 bits) | ???MB | Click here to download this file

### Part II: Exporting and Converting (30 points)

  Based on the file you obtained from Part I (with sampling rate 44,100Hz), using Audacity to generate the sound file in different file formats including:
    - .Wav format (32 bits, 16 bits and 8 bits)
    - .aiff format(32 bits, 16 bits and 8 bits)
    - .MP3 format (32 bits)
      - use online convertors such as http://media.io/, or http://audio.online-convert.com/convert-to-mp3. No need to install anything. Just upload your file, then click CONVERT File .
      - If you want mp3 option on the audacity menu, you need to download and install the LAME MP3 encoder.

When finished, you need to post these files on your wiki site as follows.

Format | File size | Download
WAV (44,100Hz and 32 bits) | ???MB | Click here to download this file
WAV (44,100Hz and 16 bits) | ???MB | Click here to download this file
WAV (44,100Hz and 8 bits) | ???MB | Click here to download this file
AIFF (44,100Hz and 32 bits) | ???MB | Click here to download this version
AIFF (44,100Hz and 16 bits) | ???MB | Click here to download this version
AIFF (44,100Hz and 8 bits) | ???MB | Click here to download this version
MP3 (44,100Hz and 32 bits) | ???MB | Click here to download this version

### Part III: Experience Different Specs (30 points)

All the above files were created using standard CD quality sampling rate: 44,100 samples per second and a bit depth of 32 bits. Now set the project sampling rate to 8000Hz, bit depth to 16 bits, repeat the work and generate three new files and post them using the following template.

When finished, you need to post them on your wiki site.

Format | File size | Download
WAV (8000Hz and 16 bits) | ???MB | Click here to download this version
AIFF (8000Hz and 16 bits) | ???MB | Click here to download this version
MP3 (8000Hz and 16 bits) | ???MB | Click here to download this version

### Submission ( 10 points)

- Deadline for submission of this project is
  - If you are in section 18: 11:59PM, Friday, 04/18/2014
  - If you are in section 12 or 27: 11:59PM, Tuesday, 04/22/2014
- Submit your .aup file to D2L
- Submit all your other files (totally 11 files: 1 ogg file, 4 wav files, 4 aiff files and 2 mp3 files) to wiki and fill out the tables listed above. ( For each missing file: -10 points.)