Re: [Alsa-user] usbaudio - Stream start causes multiple urbs to be sent rapidly to isosynchronous and sync endpoints

y DIY device to drop or increase the buffer to handle 12+ urbs. Thanks, Phil. On 13 September 2015 at 17:11, Clemens Ladisch <cladi...@googlemail.com> wrote: > Phil Quinton wrote: > > When an audio stream starts (play), 12 urbs get sent (very close > > toget

[Alsa-user] usbaudio - Stream start causes multiple urbs to be sent rapidly to isosynchronous and sync endpoints

Hi, I'm currently building a DIY High speed usb audio device and have come across some stange behaviour. When an audio stream starts (play), 12 urbs get sent (very close together) to the main isosynchronous end point, 4 urbs get sent to the sync endpoint. This is causing a buffer overrun on my