Thank you very much for the thorough approach to my question and
detailed instructions on how to catch the problem.
I tried to look with a debugger earlier, but I am not good at debugging
and C++. That's why I reproduced the steps you suggested.
Below is the output of the commands. I understa
sa_sink.cc#L175-L178
the setting of the sample rate must have already worked. Maybe the ALSA sink is expecting
things that aren't true for your PCM device? Maybe the PCM device is strrange? Hard to
tell, not enough of an internals expert for ALSA, to be honest. Hm.
I'd propose this:
1.
Hey, everybody.
I am just starting to try GNUradio and I am facing some difficulties.
Maybe someone can comment and suggest a direction to find an answer to
my question.
I have GNUradio 3.10.9.2 installed on ArchLinux; in gnuradio-companion I
created a simple flowgraph: noise source -> throt
You're welcome, Chris. Try those changes & see if maybe that helps. I can
generally switch between GR37 and GR38 easily, but right now I'm doing some
GR38 CMake-related fixups & need it installed while doing so. Can't easily
switch right now ... It is very possible that setting an ID for that wi
Hi Michael,
Thanks for your input. I will change the grc script as you suggested.
This may not solve my issue explicitly, but I want to learn gnuradio
so everything helps. I have been running gnuradio 3.7 mostly because
I have seen everyone's scripts use WX widgets and I found it easier to
port
Hi Chris - A few comments, more than anything else:
* You're generating 2 sinusoids then pushing them directly into the audio sink.
You're not guaranteed that the audio sink can support 2 input channels, even if
it seem to be able to. If the audio sink is working, it will always support at
leas
Hi Michael,
Here's the original .grc file. Thanks for your help.
Chris
On Mon, Aug 26, 2019 at 1:19 PM Michael Dickens
wrote:
>
> Can you send me the original GRC flowgraph too? I know you modified the
> output Python, but it might be useful. Also: I'm trying to use GR38 (just
> because) ...
Can you send me the original GRC flowgraph too? I know you modified the output
Python, but it might be useful. Also: I'm trying to use GR38 (just because) ...
so seeing what Python it generates will be useful. Thx! - MLD
On Mon, Aug 26, 2019, at 11:13 AM, Chris Gorman wrote:
> Hi Michael,
>
> T
Hi Michael,
Thanks for looking at this for me. I'm using gnuradio-3.7.13.5 on
ubuntu 18.04.
Chris
On Mon, Aug 26, 2019 at 11:05 AM Michael Dickens
wrote:
>
> OK good to know, Chris. Can you send me the latest version of your test
> script as an attachment? I'll give it a go & see what happens
Hi Chris,
You might try 'pavucontrol' as suggested to me by Kyeong Su Shin. Since
you are operating outside the GRC environment, it might help. Also, I
would compare the Python code generated by GRC with your modified code
to see areas which address the audio.
Good luck,
---
Barry Duggan
O
Just FYI that ALSA is Linux-specific.
Chris: Did you verify that audio output is working at all on your system? If
so, then have you worked out why it's not working in your flowgraph? If not,
let us know of any changes to it since you posted last & we'll see what we can
do. - MLD
On Mon, Aug 2
Hi Barry,
Thanks for your time and expertise. I should have been more verbose
in my email. I can get sound out of my code when I use the
gnuradio-companion program, but not when I run the snippet I gave you.
The purpose of the hacked code is to try to tie a 4x4 Qt.PushButton to
the various frequ
Hi Chris,
You didn't mention your OS or your platform, but this works for a Linux
system:
Using a terminal screen, enter 'aplay -L'
Here is an excerpt from my Raspberry Pi:
"""
default:CARD=ALSA
bcm2835 ALSA, bcm2835 ALSA
Default Audio Device
hw:CARD=ALSA,DEV=1
bcm2835 ALSA, bcm2
Hello All,
I have been hacking at a python script with an attempt to pass two
frequencies to be added to audio sink. I can't seem to get any sound
out of the sound card, though. When I run the script I get "gr::log
:INFO: audio source - Audio sink arch: alsa". The script follows. My
python and
On Mon, 18 Jul 2011 19:20:55 +0200, Volker Schroer wrote:
Here is an example that works for an Delta M44 card for input and
output
This card uses the snd_ice1712 module.
Thanks for your help. I feel I must be getting closer; I specify
SDR1000Play as the sink device, and I can now execute t
Here is an example that works for an Delta M44 card for input and output
This card uses the snd_ice1712 module.
Content of .asoundrc
=
pcm.SDR1000_card {
type hw
card M44
}
ctl.SDR1000_card {
type hw
card M44
}
pcm.dmixer {
type dmix
ipc_key
On Sun, 17 Jul 2011 19:36:50 -0400, Marcus D. Leech wrote:
Here's a discussion of a strongly-related issue with the M-Audio 2496
that seems to imply that the driver only offers 10 channels, not the
conventional '2', and so things that would ordinarily expect '2'
get astonished as a result:
ht
On 07/17/2011 06:19 PM, Alex DEKKER wrote:
Built GNUradio from git on Debian Testing AMD64 this afternoon, and
intending to use it with a Funcube Dongle and gr-fcd. I am having some
difficulty with the ALSA sink and an ICE1712 [M-Audio 2496] sound
card. I created a very simple flow graph with
On 07/17/2011 06:19 PM, Alex DEKKER wrote:
Built GNUradio from git on Debian Testing AMD64 this afternoon, and
intending to use it with a Funcube Dongle and gr-fcd. I am having some
difficulty with the ALSA sink and an ICE1712 [M-Audio 2496] sound
card. I created a very simple flow graph with
On 07/17/2011 06:19 PM, Alex DEKKER wrote:
Built GNUradio from git on Debian Testing AMD64 this afternoon, and
intending to use it with a Funcube Dongle and gr-fcd. I am having some
difficulty with the ALSA sink and an ICE1712 [M-Audio 2496] sound
card. I created a very simple flow graph with
Built GNUradio from git on Debian Testing AMD64 this afternoon, and
intending to use it with a Funcube Dongle and gr-fcd. I am having some
difficulty with the ALSA sink and an ICE1712 [M-Audio 2496] sound card.
I created a very simple flow graph with a sine wave Signal Source
straight in to an
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