PCIe sound card for FreeBSD 12.2 RELEASE amd64

David Christensen dpchrist at holgerdanske.com
Tue Mar 30 18:31:53 UTC 2021

> On Fri, Mar 26, 2021 at 10:43:55PM -0700, David Christensen wrote:
>> freebsd-questions;
>> I am looking for a PCIe sound card supported by FreeBSD 12.2
>> RELEASE amd64:
>> 1.  7.1 surround sound output via four analog 1/8" TRS jacks.
>> 2.  Includes interchangeable standard and low-profile mounting
>> brackets.
>> 3.  Currently manufactured and supported.
>> Recommendations?
>> David
>> p.s. The "FreeBSD 12.2-RELEASE Hardware Notes" "Sound Devices"
>> section has a list of device driver names and chip numbers, but I
>> am unable to correlate that information to retail products (e.g.
>> SKU):
>> https://www.freebsd.org/releases/12.2R/hardware/

STFW I was able to find some advertisements for inexpensive 5.1 cards 
that include a supported chip number:




Thus far, I have not found a 7.1 card.

On 3/29/21 9:15 PM, Doug McIntyre wrote:
> I can't specificly help you, but I recognize one thing in there that 
> you'll have to look out for as well.
> By low-profile mounting bracket, it sounds like you are looking for a
> card that can go into a server as well. Years back, almost all PCIe
> sound cards I could find were 5V only cards. Almost all servers are
> 3.3V only PCIe buses.

Thank you for the warning.  I will need to pay attention to the card 
voltage specifications and to the host voltage specifications.

> Are you sure you can't use a USB connected sound box?

This is for a multi-channel audio digital signal processing project. 
USB would add another level of complexity that I would rather avoid.

> That is what I ended up with in the past. It was either that, or to 
> use a desktop box.
Some desktop form factors use low profile PCI/PCIe cards and brackets.


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