According to the exorcist, it is good to leave it to play the deliverance prayer.

In Catholic teaching, specifically from the perspective of exorcists like Fr. Chad Ripperger and Fr. Vincent Lampert, the practice of leaving deliverance prayers playing on audio is generally viewed with caution. While not strictly forbidden, its effectiveness is limited compared to active, personal prayer.

Key Insights from Catholic Exorcists

The Power of Intent and Disposition: The efficacy of any prayer depends heavily on the person's personal holiness, disposition, and level of faith. Simply playing an audio recording lacks the "intention" of a person actively lifting their heart to God.

Active vs. Passive Prayer: Exorcists emphasize that the affected person contributes most to their own liberation through active participation in the sacraments (Confession, the Eucharist) and personal prayer. Passive listening or playing audio is not a substitute for these active spiritual duties.

Authority and Laity Guidelines:

Imperative Prayers: These are direct commands to demons (e.g., "I command you to leave"). Exorcists advise laity to use these only for themselves or those they have direct authority over (like their children).

Deprecatory Prayers: These are petitions to God (e.g., "Lord, deliver us"). These are always safe for anyone to use or play.

Infestation of Homes: If a home is suspected of demonic infestation, exorcists recommend having a priest bless the house and using holy water. While some resources suggest "keeping this playing over your home" to cultivate an atmosphere of praise, exorcists generally advise moderation and focus on personal spiritual life rather than relying on background audio.

Recommended Practical Steps

Use Approved Resources: If you choose to play prayers, ensure they are from reputable sources, such as the St. Michael Center for Spiritual Renewal or prayers from Fr. Chad Ripperger’s "Deliverance Prayers for Use by the Laity".

Focus on Sacramental Life: Prioritize regular Confession and Mass, as these are the primary means of deliverance provided by the Church.

Active Engagement: If you play audio prayers, try to pray along with them rather than just leaving them as background noise to ensure your intent is present.

These expert articles explain the Catholic Church's approach to deliverance, emphasizing personal prayer and sacraments over simply playing audio prayers.