Hi Bissera, I may be misreading your design a little bit, but it seems to me that there's in fact a solution using separate trial templates? Each trial template can have its own randomization pattern (defined via "stimulus_pattern": https://help.findingfive.com/api/trial-t...s-patterns), and then they can be interweaved together at the block level using the "alternate" pattern in the block (https://help.findingfive.com/api/procedu...ml#pattern). The end result will be what you are defining in "audios2" - two types of trials in an ABABA order. If you don't want the ABABA pattern but randomized one, there are others for you to choose from as the randomization pattern at the block level (e.g., "randomized_trials").
That gives you the freedom of defining two trial templates independently, which will resolve the duration vs auto advance conundrum? In fact, you don't even need to define responses for one of the trial templates.
Additionally, make sure you are not setting "barrier": false on your audio stimuli, since the auto advance feature will need the barrier to work. Otherwise, it'll just skip trials since the duration of an audio stimulus is treated as 0 if barrier is turned off.
Let us know if these pointers get you anywhere. I do recommend giving the two linked sections a read and see what you think. Those are the powerful randomization methods FindingFive takes extraordinary pain to create, and the interaction between randomization at the trial template level and that at the block level can create beautiful / powerful effects.
That gives you the freedom of defining two trial templates independently, which will resolve the duration vs auto advance conundrum? In fact, you don't even need to define responses for one of the trial templates.
Additionally, make sure you are not setting "barrier": false on your audio stimuli, since the auto advance feature will need the barrier to work. Otherwise, it'll just skip trials since the duration of an audio stimulus is treated as 0 if barrier is turned off.
Let us know if these pointers get you anywhere. I do recommend giving the two linked sections a read and see what you think. Those are the powerful randomization methods FindingFive takes extraordinary pain to create, and the interaction between randomization at the trial template level and that at the block level can create beautiful / powerful effects.