[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Discuss-gnuradio] How to specify Audio Source device_name?

From: Cinaed Simson
Subject: Re: [Discuss-gnuradio] How to specify Audio Source device_name?
Date: Fri, 23 Sep 2016 12:56:40 -0700
User-agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0

On 09/22/2016 12:06 PM, Paul Zander wrote:
> Problem solved.  I used the Sound GUI under the Settingsmenu to select
> the audio source.  
> I am not sure if that is PulseAudio, but the selections and gain
> settings do work.
> I even found that I could switch the device while the flowgraph was running.
> That said, I am puzzled about the intended usage of HW:1,0 and and
> similar device names.

It occurred to me last night where hw:1,0 is used - it can be used as
the device in the audio sink in grc.

I just tried it and it works.

> Suppose I create |~/.asoundrc |following the instructions at:
>   http://gnuradio.org/redmine/projects/gnuradio/wiki/ALSAPulseAudio
> |
> |
> |Then should I be able to specify the device name in GRC
> |
> |and not have to rely on the audio setings?
> |
> On 09/21/2016 12:40 PM,Cinaed Simson wrote:
>> On 09/21/2016 09:40 AM, Paul Zander wrote:
>>> Cinaed,
>>> Your suggestion about testing the audio suggested an new experiment that
>>> may be a work-around.
>>> With Settings >> Sound >> Input >> Internal Microphone,  my GRC with (QT
>>> GUI Time Sink) shows a signal that responds to the internal microphone.
>>> Speaking or clapping hands causes a response on the graph.
>>> When I change the Input to Microphone, USB Audio Device, and re-execute
>>> the flowgraph,  the signal is very small and does not respond to
>>> sounds.  Maybe Audio Source only works with the default input from the
>>> system.
>> Use the PulseAudio Volume control to turn up the volume on the input
>> device. You can find the find the input device under Inputs.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]