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sBitx Audio Setup (Was: Re: [BITX20] Using an external HDMI TV Monitor)

 

IMHO, the best way to support all the use-cases for sBitx while maintaining low latency and lower use of cpu resources is by using alsa ucm (use-case-manager):



Which is not another layer of software (like Jack, Pulseaudio, ESD or Pipewire), but use an alsa configuration manager with pre-defined profiles for each use case (and Pulseaudio, for example, honor it, in case of used).

If latency is not an issue... then any solution will work fine if properly set. Sorry to spam the list on this topic...

ow boy, how I miss good ol' OSS times... just open() /dev/dsp and be happy.

Rafael

On 4/15/23 19:13, Rafael Diniz wrote:
Btw, if you want to install Pipewire in Debian:


Pipewire is officially unsupported in Debian 11, which sBitx v2 is using currently. I had some bad experiences with it tbh, and rolled back to using alsa directly. I strongly recommend Debian 12 if one wants to use Pipewire. Also bear in mind some changes in sbitx_sound.c might be needed for optimum operation with Pipewire.

73's
Rafael

On 4/15/23 18:56, Rafael Diniz wrote:
Nope. Pipewire is an extra layer on top of the audio drivers (ALSA).

Rafael

On 4/15/23 18:49, Lou KI5FTY wrote:
its actually not another layer, it replaces alsa and pulse audio with a high performance audio engine.? It has a pulse and alsa connector so everything is transparent when the change is made

On Sat, Apr 15, 2023 at 9:43?AM Rafael Diniz <rafael@...> wrote:

??? Another layer of audio never helps. Better stick with pure alsa only.
??? What exactly do you need Ashhar? Alsa has plugins for almost
??? everything,
??? with different level of performance and efficiency. Pulseaudio is
??? really
??? evil indeed...

??? Rafael

??? On 4/14/23 19:27, Ashhar Farhan wrote:
??? > If someone can show me a small bit of code that allows full duplex
??? > audio and control over mixer, I will switch to Jack or pipewire
??? in an
??? > instant.
??? > - f
??? >
??? > On Fri, Apr 14, 2023, 7:12 PM Bill <groups191117@...> wrote:
??? >
??? >? ? ?Pulseaudio is a bit of a dumpster fire.? Have you considered
??? >? ? ?Pipewire instead?
??? >
??? >? ? ?All of the low-latency and connection advantages of JACK without
??? >? ? ?the bugs and arrogance of pulseaudio.
??? >
??? >? ? ?All the cool kids are using it. :)
??? >
??? >
??? >? ? ??- Bill? N3AJ
??? >
??? >










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Re: Using an external HDMI TV Monitor

 

Btw, if you want to install Pipewire in Debian:


Pipewire is officially unsupported in Debian 11, which sBitx v2 is using currently. I had some bad experiences with it tbh, and rolled back to using alsa directly. I strongly recommend Debian 12 if one wants to use Pipewire. Also bear in mind some changes in sbitx_sound.c might be needed for optimum operation with Pipewire.

73's
Rafael

On 4/15/23 18:56, Rafael Diniz wrote:
Nope. Pipewire is an extra layer on top of the audio drivers (ALSA).

Rafael

On 4/15/23 18:49, Lou KI5FTY wrote:
its actually not another layer, it replaces alsa and pulse audio with a high performance audio engine.? It has a pulse and alsa connector so everything is transparent when the change is made

On Sat, Apr 15, 2023 at 9:43?AM Rafael Diniz <rafael@...> wrote:

??? Another layer of audio never helps. Better stick with pure alsa only.
??? What exactly do you need Ashhar? Alsa has plugins for almost
??? everything,
??? with different level of performance and efficiency. Pulseaudio is
??? really
??? evil indeed...

??? Rafael

??? On 4/14/23 19:27, Ashhar Farhan wrote:
??? > If someone can show me a small bit of code that allows full duplex
??? > audio and control over mixer, I will switch to Jack or pipewire
??? in an
??? > instant.
??? > - f
??? >
??? > On Fri, Apr 14, 2023, 7:12 PM Bill <groups191117@...> wrote:
??? >
??? >? ? ?Pulseaudio is a bit of a dumpster fire.? Have you considered
??? >? ? ?Pipewire instead?
??? >
??? >? ? ?All of the low-latency and connection advantages of JACK without
??? >? ? ?the bugs and arrogance of pulseaudio.
??? >
??? >? ? ?All the cool kids are using it. :)
??? >
??? >
??? >? ? ??- Bill? N3AJ
??? >
??? >







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Re: Using an external HDMI TV Monitor

 

Nope. Pipewire is an extra layer on top of the audio drivers (ALSA).

Rafael

On 4/15/23 18:49, Lou KI5FTY wrote:
its actually not another layer, it replaces alsa and pulse audio with a high performance audio engine.? It has a pulse and alsa connector so everything is transparent when the change is made

On Sat, Apr 15, 2023 at 9:43?AM Rafael Diniz <rafael@...> wrote:

Another layer of audio never helps. Better stick with pure alsa only.
What exactly do you need Ashhar? Alsa has plugins for almost
everything,
with different level of performance and efficiency. Pulseaudio is
really
evil indeed...

Rafael

On 4/14/23 19:27, Ashhar Farhan wrote:
> If someone can show me a small bit of code that allows full duplex
> audio and control over mixer, I will switch to Jack or pipewire
in an
> instant.
> - f
>
> On Fri, Apr 14, 2023, 7:12 PM Bill <groups191117@...> wrote:
>
>? ? ?Pulseaudio is a bit of a dumpster fire.? Have you considered
>? ? ?Pipewire instead?
>
>? ? ?All of the low-latency and connection advantages of JACK without
>? ? ?the bugs and arrogance of pulseaudio.
>
>? ? ?All the cool kids are using it. :)
>
>
>? ? ??- Bill? N3AJ
>
>





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Re: Sbitx v2 without touchscreen?

 

I use openvpn. You can follow any guide on how to setup openvpn (or any other solution, like wireguard) on ubuntu or debian. If you want a proprietary solution, there is TeamViewer:


Rafael

On 4/15/23 18:03, Petr Ourednik wrote:

Rafael,

That's what appeals to me about it - remote over internet experiments. ;)

I will be happy for experiences shared.

- P

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Re: Cooling RPi4 in Sbitx

 

I know that the testing is done with programs that use the CPU.
It can also be called an overload test.
In our case, the goal may be to avoid heat production due to long-term use.
The question is whether the center cooling surface does as much cooling as opposed to letting the air flow.
--
Gyula HA3HZ
Re: Using an external HDMI TV Monitor

 

its actually not another layer, it replaces alsa and pulse audio with a high performance audio engine.? It has a pulse and alsa connector so everything is transparent when the change is made


On Sat, Apr 15, 2023 at 9:43?AM Rafael Diniz <rafael@...> wrote:
Another layer of audio never helps. Better stick with pure alsa only.
What exactly do you need Ashhar? Alsa has plugins for almost everything,
with different level of performance and efficiency. Pulseaudio is really
evil indeed...

Rafael

On 4/14/23 19:27, Ashhar Farhan wrote:
> If someone can show me a small bit of code that allows full duplex
> audio and control over mixer, I will switch to Jack or pipewire in an
> instant.
> - f
>
> On Fri, Apr 14, 2023, 7:12 PM Bill <groups191117@...> wrote:
>
>? ? ?Pulseaudio is a bit of a dumpster fire.? Have you considered
>? ? ?Pipewire instead?
>
>? ? ?All of the low-latency and connection advantages of JACK without
>? ? ?the bugs and arrogance of pulseaudio.
>
>? ? ?All the cool kids are using it. :)
>
>
>? ? ??- Bill? N3AJ
>
>





Re: Cooling RPi4 in Sbitx

 

I thought exactly that the new house might not fit any cooling surface.
Although I found a 7mm high heatsink that might still fit... the question is whether it is really necessary.
I'll post a picture:
--
Gyula HA3HZ
Re: Sbitx v2 without touchscreen?

 

Petr,
This remoting is not fully done yet. What we have is a proof of concept. I will clear my head and rewrite these to work full duplex on udp streams.?
It is still, a shape of things to come, very shortly.
?-f

On Sat, Apr 15, 2023, 8:33 PM Petr Ourednik <indians@...> wrote:

Rafael,

That's what appeals to me about it - remote over internet experiments. ;)

I will be happy for experiences shared.

- P
Re: Sbitx v2 without touchscreen?

 

Rafael,

That's what appeals to me about it - remote over internet experiments. ;)

I will be happy for experiences shared.

- P
Re: Cooling RPi4 in Sbitx

 

Gyula

many of us, B26-RF2K-S amplifier users, is using passive heatsink from this link on Pi4:

On the other hand, as Farhan tested, it looks like it is not needed. (and not sure if it would fit in new slim case)

- P
Re: Sbitx v2 without touchscreen?

 

Indeed, one can use the v2 from any device in the world by using a VPN.
: )

On 4/14/23 19:44, Ashhar Farhan wrote:
Btw, you can use the v2 from any device on the same wifi as the radio. You dont need an hdmi cable.
I used it with a friend's ipad. It was addictive. I was checking into the morning 7015 net from my bed!
- f

On Fri, Apr 14, 2023, 10:03 PM James French <w8iss1@...> wrote:

I kind of 'assumed' that.
??????????????

Thanks.

On Fri, Apr 14, 2023, 09:01 Ashhar Farhan <farhanbox@...> wrote:

You will have to use a mouse, instead.

On Fri, Apr 14, 2023, 5:30 PM Evan Hand <elhandjr@...>
wrote:

Hi James,

Yes, the software works without a touchscreen.

73
Evan
AC9TU

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Re: Using an external HDMI TV Monitor

 

Another layer of audio never helps. Better stick with pure alsa only. What exactly do you need Ashhar? Alsa has plugins for almost everything, with different level of performance and efficiency. Pulseaudio is really evil indeed...

Rafael

On 4/14/23 19:27, Ashhar Farhan wrote:
If someone can show me a small bit of code that allows full duplex audio and control over mixer, I will switch to Jack or pipewire in an instant.
- f

On Fri, Apr 14, 2023, 7:12 PM Bill <groups191117@...> wrote:

Pulseaudio is a bit of a dumpster fire.? Have you considered
Pipewire instead?

All of the low-latency and connection advantages of JACK without
the bugs and arrogance of pulseaudio.

All the cool kids are using it. :)


?- Bill? N3AJ

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OpenPGP_signature

Re: new sBitx software

 

I hope Bill that we will enjoy new V2 as same as our K3 and K4 rigs ;)
- P
Re: mods needed on DE version....

bill steffey NY9H
 

¿ªÔÆÌåÓý

to Farhan...

going to the new (to me)??? sbitx.net website causes me another question.?? My DE set came with the new regulator board? and has the pin diode tr upgrade board.?? The website talks about? "PA sequencing to avoid blow outs"...? is this mod still required of my DE set? Ser#? CHO`146 ????


tnx AGN


bill ?

? ?



On 4/15/2023 9:09 AM, bill steffey NY9H wrote:

Thanks to Farhan for the clarity & Petr ....??? I have a k3 and enjoyed the abilities of upgraded features & performance. I also have sn# 142? early? K4 which has a GREAT upgrade facility... totally painless.... ?? Thanks for the additional spot to look for Sbitx stuff.


bill?

On 4/15/2023 1:04 AM, Petr Ourednik wrote:

Bill,

as all gears driven by microcontroller also the SBITX V2 can be continually improved and updated. V2 is even right now good radio I believe but thanks to great effort of Farhan it will be growing by the time I am sure.?

New features, possible bugs fixes (it could happen) and tweaks can be done by new software release.?

To make and store software backup is not necessary but always good - the same like with your PC.?

You do not need to update your radio regularly but it is good to have chance to do it if it¡¯s suitable for you based on new software release note.?

I have my Elecraft K3 from 2008. There were dozen of software updates released during years and I updated it several times but I do not have latest release simply because last few updates did not bring anything useful for me. No bugs fixes just added few things which I will never use it¡­
So you do not need to worry about software in V2 I guess. It will work but it is always good to know that if any issues will happen then it can be solved by software update.?

Its my 2c opinion;)

- P
Re: new sBitx software

bill steffey NY9H
 

¿ªÔÆÌåÓý

Thanks to Farhan for the clarity & Petr ....??? I have a k3 and enjoyed the abilities of upgraded features & performance. I also have sn# 142? early? K4 which has a GREAT upgrade facility... totally painless.... ?? Thanks for the additional spot to look for Sbitx stuff.


bill?

On 4/15/2023 1:04 AM, Petr Ourednik wrote:

Bill,

as all gears driven by microcontroller also the SBITX V2 can be continually improved and updated. V2 is even right now good radio I believe but thanks to great effort of Farhan it will be growing by the time I am sure.?

New features, possible bugs fixes (it could happen) and tweaks can be done by new software release.?

To make and store software backup is not necessary but always good - the same like with your PC.?

You do not need to update your radio regularly but it is good to have chance to do it if it¡¯s suitable for you based on new software release note.?

I have my Elecraft K3 from 2008. There were dozen of software updates released during years and I updated it several times but I do not have latest release simply because last few updates did not bring anything useful for me. No bugs fixes just added few things which I will never use it¡­
So you do not need to worry about software in V2 I guess. It will work but it is always good to know that if any issues will happen then it can be solved by software update.?

Its my 2c opinion;)

- P
Re: Cooling RPi4 in Sbitx

 

My radio has been running continuously for the last one week, this is our peak summer, with temperatures soaring to 38 c. The shack's air conditioner is in on only about 3 hours day.
It has run without problem.
- f

On Sat, Apr 15, 2023, 6:07 PM HA3HZ <gyula@...> wrote:

The question whether the RPi4 should be installed without cooling or with cooling does not let us rest.
I looked through several test descriptions, where they show measurements depending on the number of processors /
CPU frequency used and with different cooling solutions.
The point is that there can be a difference of up to 30 degrees C with or without the refrigerator.
In the state without a cooler, 85-88 degrees Celsius is also possible.
While the most effective passive cooling is 50-63 degrees Celsius.
Since I used an RPi400 so far, I have no experience, but I think that some kind of cooling is necessary.
(I don't mean the 3 small cooling surfaces)
I'd like to hear other people's opinions and experiences.
--
Gyula HA3HZ

Cooling RPi4 in Sbitx

 


The question whether the RPi4 should be installed without cooling or with cooling does not let us rest.
I looked through several test descriptions, where they show measurements depending on the number of processors /
CPU frequency used and with different cooling solutions.
The point is that there can be a difference of up to 30 degrees C with or without the refrigerator.
In the state without a cooler, 85-88 degrees Celsius is also possible.
While the most effective passive cooling is 50-63 degrees Celsius.
Since I used an RPi400 so far, I have no experience, but I think that some kind of cooling is necessary.
(I don't mean the 3 small cooling surfaces)
I'd like to hear other people's opinions and experiences.
--
Gyula HA3HZ
Re: new sBitx software

 

Bill,

as all gears driven by microcontroller also the SBITX V2 can be continually improved and updated. V2 is even right now good radio I believe but thanks to great effort of Farhan it will be growing by the time I am sure.?

New features, possible bugs fixes (it could happen) and tweaks can be done by new software release.?

To make and store software backup is not necessary but always good - the same like with your PC.?

You do not need to update your radio regularly but it is good to have chance to do it if it¡¯s suitable for you based on new software release note.?

I have my Elecraft K3 from 2008. There were dozen of software updates released during years and I updated it several times but I do not have latest release simply because last few updates did not bring anything useful for me. No bugs fixes just added few things which I will never use it¡­
So you do not need to worry about software in V2 I guess. It will work but it is always good to know that if any issues will happen then it can be solved by software update.?

Its my 2c opinion;)

- P
Re: new sBitx software

 

Bill,
First, as it is shipped, you keep operating as it is shipped. It wont die on you. You are at liberty to upgrade or not. I guess for you, you can upgrade once a year to get the latest features in.
The website to go to, in the future (not very active now) would be .?
Yes, the touchscreen does everything, you need a mouse if you are not using a touch screen and using an HDMI display instead.
- f


On Sat, Apr 15, 2023, 6:27 AM bill steffey NY9H <ny9h@...> wrote:

I was wishing just to do some operating....as opposed to worrying about downloading new os ups whatever.?

How does one determine if it is appropriate to download a new thing. To keep v2 going.

Seems that v2 stuff is intertwined with bitx older units softwares..confusing!

does the v2 touchscreen do everything ?? sounds like need to use a mouse in addition to the screen... ????

Maybe someday V2 will be big enough to have its own reflector? ???

Is there some site other than reading emails to choose to upload...and how to upload stuff for v2 ???? These are my questions?


tnx

confused bill



On 4/14/2023 6:55 PM, Petr Ourednik wrote:

Perfect Farhan.?

It would be great to have dedicated place (repo?) where we could find complete image of latest version of SBITX V2 software to burning it on SD card for quick replacing in radio whrn some changes done, as same as for making backup SD card.
Many thanks Farhan for your effort.?

- P
Re: new sBitx software

bill steffey NY9H
 

¿ªÔÆÌåÓý

I was wishing just to do some operating....as opposed to worrying about downloading new os ups whatever.?

How does one determine if it is appropriate to download a new thing. To keep v2 going.

Seems that v2 stuff is intertwined with bitx older units softwares..confusing!

does the v2 touchscreen do everything ?? sounds like need to use a mouse in addition to the screen... ????

Maybe someday V2 will be big enough to have its own reflector? ???

Is there some site other than reading emails to choose to upload...and how to upload stuff for v2 ???? These are my questions?


tnx

confused bill



On 4/14/2023 6:55 PM, Petr Ourednik wrote:

Perfect Farhan.?

It would be great to have dedicated place (repo?) where we could find complete image of latest version of SBITX V2 software to burning it on SD card for quick replacing in radio whrn some changes done, as same as for making backup SD card.
Many thanks Farhan for your effort.?

- P
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