3 ms·
In my experiments with this three years ago, the loopback device didn't work if you didn't have a sound card in the source machine. This didn't work on an EC2
by vitovito 11y ago
In my experiments with this three years ago, the loopback device didn't work if you didn't have a sound card in the source machine. This didn't work on an EC2 machine or other shared server.
Anyone know if this has changed?
- zbuf 11y agoTaking a look at the ALSA code now; at a glance the loopback timer comes from include/linux/timer.h -- it doesn't look like there's any immediate dependency on a hardware interface or indeed any other device in the system. And I do recall using loopback without a hardware interface. I would predict that the difference is actually in the virtualisation, the implementation of that timer may be very different to a physical or bare-metal machine.