Hi Ralf, On 04.12.16 16:28, Olli wrote: > > 2. Do I understand correctly, 64 samples cause more latency than 128 > > samples? > > Looks like it. But I will also run jack_iodelay next weekend to to > measure some more settings and verify the results. I ran some more tests with jack_iodelay: # Scarlett 18i20 Both connected input and output channels are on the same device. ## 48 kHz, 256 frames, 2 periods total roundtrip latency: 1299,813 frames (27,079ms) extra loopback latency: 531 frames ## 48 kHz, 256 frames, 3 periods total roundtrip latency: 1796,813 frames (37,434ms) extra loopback latency: 772 frames ## 48 kHz, 128 frames, 2 periods total roundtrip latency: 705,813 frames (14,704ms) extra loopback latency: 321 frames ## 48 kHz, 128 frames, 3 periods total roundtrip latency: 834,813 frames (17,392ms) extra loopback latency: 322 frames # Scarlett 18i20 + OctoPre Connected input and output channels are on different devices. ## 48 kHz, 256 frames, 2 periods total roundtrip latency: 1349,806 frames (28,121ms) extra loopback latency: 581 frames ## 48 kHz, 256 frames, 3 periods total roundtrip latency: 1801,806 frames (37,538ms) extra loopback latency: 777 frames ## 48 kHz, 128 frames, 2 periods total roundtrip latency: 713,806 frames (14,871ms) extra loopback latency: 329 frames ## 48 kHz, 128 frames, 3 periods total roundtrip latency: 990,806 frames (26,642ms) extra loopback latency: 478 frames I did not test any higher framerates (e. g. 96 kHz) since my Laptop does not run very stable at them. Regards, Olli _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
