I am using the altera_up_avalon_audio in University program IP library.
It works. But I have to copy the hdl files below into my Quartus project's root directory manually.
altera_up_audio_bit_counter.v
altera_up_audio_in_deserializer.v
altera_up_audio_out_serializer.v
altera_up_clock_edge.v
altera_up_sync_fifo.v
In the tcl file, I found the code below
file copy -force "hdl/altera_up_audio_bit_counter.v" $dest_dir
file copy -force "hdl/altera_up_audio_in_deserializer.v" $dest_dir
file copy -force "hdl/altera_up_audio_out_serializer.v" $dest_dir
file copy -force "hdl/altera_up_clock_edge.v" $dest_dir
file copy -force "hdl/altera_up_sync_fifo.v" $dest_dir
but it seems it doesn't work. And even if it works, it's suppose to copy the files into system_0\synthesis\submodules
