From what I’m reading the Victim Impact Statement is a written letter submitted to the judge and it can be read orally if the victim chooses to do so.
Under C.R.S.24-4.1-302.5 (g), a victim has the right to make a written and oral impact statement about the harm that the victim has sustained as a result of the crime. Victims may choose to submit both a written Victim Impact Statement and speak at the sentencing, only speak or only submit a Victim Impact Statement or do neither. The choice is up to a victim. The Victim Impact Statement can be a powerful tool in the recovery process for a victim from the trauma of a crime.
A Victim Impact Statement form accompanies the first letter sent from the District Attorney’s Office to a victim after charges have been filed for prosecution. The District Attorney’s Office will make every effort to insure that a completed Victim Impact Statement is available to the judge prior to the date of sentencing.
Victim Impact Statement Form | 17th Judicial District Attorney's Office