15 Jan
2018
15 Jan
'18
9:13 a.m.
I checked proc/asound/cards aftre connecting a USB sound card. and it listed both PC sound
card and
USB sound card as [HD] - usb soundcard and [PCH] - pc sound card.
However when I started jack with
jackd -d alsa -d hw:HD and printed the ports it was showing only one two ports (left
& right).
I want both PC and USB sound card ports to be accessed at the same time.
How to enable all sound card input and output ports ?
-ben
________________________________
From: Jack-Devel <jack-devel-bounces(a)lists.jackaudio.org> on behalf of David Kastrup
<dak(a)gnu.org>
Sent: Sunday, January 14, 2018 3:38 PM
To: jack-devel(a)lists.jackaudio.org
Subject: Re: [Jack-Devel] Using USB sound card with Jack
Benny Alexandar <ben.alex(a)outlook.com> writes:
Hi,
I'm using latest jack audio server version jackd 1.9.12. I have built
simple client.c app
and able to capture audio from microphone input and play it out.
I have another USB soundcard which is connected to pc through USB.
How to get input from USB soud card ?
After connecting USB sound card and when printed the ports[] array
after executing the jack API jack_get_ports()
I could see only PC microphone capture ports, not showing USB ports.
Start jackd as
jackd -d alsa -d hw:1 ...
Instead of hw:1 you may use whatever ALSA decides to call this device
(cf the verbose name in [...] in /proc/asound/cards: if it is
[Satellite ], -d hw:Satellite may word).
--
David Kastrup
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