[FFADO-devel] Am I just really bad at math or is something wrong here.

[Mark J. <mdj...@ya...>]

Here are the log messages from trying to configure and run with 4 presonus firepods under
jack-audio.

23:18:56.709 JACK connection graph change.
libiec61883 warning: Established connection on channel 0.
You may need to manually set the channel on the receiving node.
libiec61883 warning: Established connection on channel 1.
You may need to manually set the channel on the receiving node.
libiec61883 warning: Established connection on channel 2.
You may need to manually set the channel on the receiving node.
libiec61883 warning: Established connection on channel 3.
You may need to manually set the channel on the receiving node.

libiec61883 warning: Failed to allocate bandwidth.

LibFreeBoB ERR: Could not do CMP for connection 4
FreeBoB ERR: Could not start streaming threads
DRIVER NT: could not start driver
cannot start driver
zombified - calling shutdown handler

When I look at what I am asking for, I see this

48000 samples/second  32 bits/sample  8 channels  4 units

One unit gives me 12,288,000 bits/second
Four units give me 49,152,000 bits/second which is sooooo far south of 400Mbits/second that I
don't think protocol overhead is going to be a major factor here.

Am I just stupid or is there a bug in libiec61883 or freebob?

PS  the samples are really 24 bits in size, but I'm guessing they are coming across as 32 bit
samples.

Mark Jones

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