Automatic alignment of presentation time offsets in different communication directions

A first device comprising:

• at least one processor;
• and
• at least one memory storing computer program instructions, the at least one memory and the computer program instructions being configured, with the at least one processor, to cause the first device to,
• transmit, to a second device, a first initial duration of a first presentation time offset, the first presentation time offset being a period from data being input to the first device to the data being output from the second device;
• receive, from the second device, a second initial duration of a second presentation time offset, the second presentation time offset being a period from data being input to the second device to the data being output from the first device;
• and
• determine an adjusted duration of the first presentation time offset based on a longer one of the first initial duration and the second initial duration.

An apparatus for communication, comprising:

• means for transmitting, at a first device to a second device, a first initial duration of a first presentation time offset, the first presentation time offset being a period from data being input to the first device to the data being output from the second device;
• means for receiving, from the second device, a second initial duration of a second presentation time offset, the second presentation time offset being a period from data being input to the second device to the data being output from the first device;
• and
• means for determining an adjusted duration of the first presentation time offset based on a longer one of the first initial duration and the second initial duration.