mirv_voice_block 
This command allows blocking the in-game voice of specific players when playing demos. This is done using the entity id of the player which you can find out in demos by using the [[mirv_listplayers|GoldSrc:mirv_listplayers]] command.
- : brings up the ingame help
 - : adds id to list of blocked entity ids
 - : deletes id form the list of blocked entity ids
 - : shows the list entity (player) ids, whose' voice data is blocked
 - : clears all ids from the list
 
See also 
- [[mirv_listplayers|GoldSrc:mirv_listplayers]]
 - [[GoldSrc:Commands]]