Erickson Tribune

Science & Technology

UPDATED: Tuesday, April 11, 2006

Convert Old Tapes and Records to CD

Posted on Tuesday, April 04, 2006
 

After the ripping and burning article I wrote last month I’ve gotten a lot of questions about converting older sound formats to CD so I’ve decided to put it all here for everyone to enjoy.

Making the Connections

The first thing to do is make the connection between your music equipment, such as a record deck or a tape player, and your computer's sound card. If you are planning to record music from a turntable that isn't part of an all-in-one hi-fi system, then you need to be aware that although turntables generally have RCA outputs at the rear, these can't be plugged directly into your sound card's inputs. Because of the way vinyl is recorded the music needs to be fed through a pre-amp for it to sound normal. If you don’t have an all-in-one system you can simply take advantage of the pre-amp built in to the amplifier of your hi-fi. All you have to do is make a connection from your amplifier's line-out or Aux jack to your sound card's line-in jack.

If you don't have a line-out or Aux jack, you can try using the headphone output instead. However, you'll have to be careful not to turn the volume up too loud or it will overload your sound card and lead to distorted recordings. You’ll have to spend a little time experimenting with low settings until you're happy with the levels.

If you are recording from a tape player then you can make the connections in the same way. The one big difference is that you won't need to worry about pre-amps. Instead, you can just connect the line-out or Aux output on your tape deck to your sound card's line-in jack.

Depending on the types of inputs you have available on your sound card you may need to get some adapters to make the connections. The most common adapter needed for this type of operation is an RCA to Stereo Mini Plug.


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Test the Connections

For Windows users: Click on Start and then select All Programs, Accessories, Entertainment, and choose Volume Control to open the mixer control for your sound card. Click on the Options menu and select properties. Click on the radio button for Recording under “Adjust Volume For”. Make sure the box marked Line In is checked. The mixer controls for recording will now appear.

Check the box marked “Select” at the bottom of the mixer control for Line In and position the slider at around the halfway mark.

Create the Recording

For this example I’ll be using Audacity. It’s free, easy-to-use, and available for different platforms. You can get it from http://audacity.sourceforge.net/. If you own Nero or Easy CD Creator these applications have special features to automate most of the process. If you own a Macintosh, Garage Band is probably going to be your application of choice.

Start Audacity and choose Line In as your source. Hit record, and then begin playing your music. You’ll need to monitor things to make sure all of the levels are set properly. It will probably take some tweaking but once your levels are all set you can start a new recording and begin working on the final product.

Audacity will allow you to save the sound file in a variety of formats, such as wav or mp3. At this point it is probably best to save it in the uncompressed wav format because you may need to clean up some of the sound (removing hiss and pops) and it is best to work with an uncompressed file when editing.

Once you have the final version of the file you can save the wav as an MP3 and use it in portable media devices or you can burn the wav files to create audio CDs for your stereo.

Removing Noise

For those who want to take this a step further O'Reilly has published, on their Website, Seven Steps to Noise-Free Digital Audio. This is taken from the book Digital Audio Essentials By Bruce Fries and Marty Fries.

Have a computer or technology-related question for Joe? E-mail your question to: askjoe@ericksonmail.com.



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