> Jack O'Quin wrote: >> I suspect your USB device will become a latency bottleneck before >> these kernels will, but only experimenting on your own system will >> tell you for sure. Atte Andr? Jensen <atte.jensen@xxxxxxxxx> writes: > Is there an inherent minimum latency for USB soundcards? I have no USB sound card. Perhaps someone else can answer that question. There *are* reported latency problems with USB, ALSA and JACK due to isochronous USB data transfers and JACK's need for a constant power of two buffer size. IIUC, USB sends a block every 1ms. With some sample rates this does not result in a constant number of samples in every block. Progress has been made with certain specific devices (usx2y), but I believe the general problem still remains. These issues seem to become more intrusive at lower latencies. But, I really don't know what the limits are for your device. -- joq
