9 Nov
2010
9 Nov
'10
8:47 a.m.
Ken Restivo wrote:
On Mon, Nov 08, 2010 at 10:13:04AM +0100, Clemens
Ladisch wrote:
Full speed has just barely enough bandwidth for eight channels of 16-bit
samples at 48 kHz. This could be 7.1 output, or 6 outputs + stereo
input, or 4+4 outputs/inputs.
With 24-bit samples at 48 kHz, there's bandwidth for five channels
overall, i.e., 4 output channels, or full-duplex stereo.
With 24-bit samples at 96 kHz, there's bandwidth for two channels,
i.e., stereo output _or_ stereo input.
Regards,
Clemens
Ken Restivo wrote:
That seems odd, since there seem to be a lot of very cheap USB 1.0
devices that can support 6 channels (5:1 surround for home theater). 3) Has FOUR outputs and 2-4 inputs, all usable
from within JACK, with
good professional quality DAC/ADCs.
This would mean full duplex and 24-bit samples, which would exceed the
bandwidth available for full speed devices.