Inner groove distortion (IGD) is a type of distortion that occurs when the stylus reaches the inner grooves of a vinyl record. This is because the grooves are closer together at the inner grooves, which means that the stylus has less time to track them. This can cause the sound to become distorted, with a loss of high frequencies and a muddy sound.
There are a few reasons why IGD occurs. One reason is that the grooves are simply closer together at the inner grooves. This is because the record is pressed in a circular shape, and the grooves have to be spaced out evenly around the record. However, this means that the grooves are closer together at the inner grooves, which can cause distortion.
Another reason why IGD occurs is because the stylus has less time to track the grooves at the inner grooves. This is because the stylus is moving faster at the inner grooves, as it has to cover less distance. This means that the stylus has less time to respond to the changes in the grooves, which can cause distortion.
IGD can be a problem for any vinyl record, but it is more common on records that are pressed at high speeds. This is because the grooves are more likely to be closer together on records that are pressed at high speeds.
There are a few things that can be done to reduce IGD. One thing that can be done is to use a high-quality turntable with a good cartridge. This will help to ensure that the stylus is tracking the grooves properly.
Another thing that can be done is to use a record with a wider groove spacing. This will give the stylus more time to track the grooves and reduce the amount of distortion.
Finally, it is important to avoid playing records at high volumes. This is because high volumes can cause the stylus to vibrate, which can increase the amount of distortion.
If you are experiencing IGD, there are a few things that you can do to try to improve it. First, you can try cleaning your record with a soft cloth or a record cleaning brush. You can also try adjusting the tracking force on your turntable. If you are still having problems, you may need to take the record to a professional record cleaner or repair shop.
Here are some tips to help prevent IGD:
- Buy your records from reputable dealers: This will help to ensure that you are getting a high-quality record.
- Inspect your records carefully before you buy them: Look for any obvious defects, such as off-center pressing or non-fill.
- Store your records properly: Store your records in a cool, dry place away from direct sunlight.
- Handle your records with care: Avoid dropping or scratching your records.
- Clean your records regularly: This will help to remove dirt and debris from the grooves and prevent them from causing damage.
- Set up your turntable properly: This will help to ensure that the sound quality is as good as possible.
By following these tips, you can help to ensure that your vinyl will sound great for years to come.
