@ greenjeans Thank you for that interesting information. This whole thing with the audio web api and tomplay.com is still up in the air. I tried a fresh install of Devuan with LXDE, which only installs Alsa (which I prefer) and more or less, as expected, I can't get tomplay.com to work, but all of the other expected things like YouTube and the terminal speaker test work, but it should be noted that https://www.worteldrie.com/WD5/ doesn't work either.

I have contacted Tomplay, despite not expecting much of a response. I will post when I get a reply.

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As I thought., not much of a response from Tomplay tech. Only info is - unsupported, but works with Ubuntu and Linux Mint, and the app works in wine. I was hoping for some technical details that I and other Linux users could use to get whatever distro we want to work, but no.

Cool. Thanks for the reply. If using a Devuan install without a desktop already installed, will the TDE login manager be pulled in? Is it better to start with a minimal install such as LXDE and then remove it after TDE gets installed?

Cool

Linux isn't officially supported...

It isn't easy to get information on the technology, when they don't support Linux. I am only using it for woodwind instrumets at this time, not sure what their keyboard support is like. I don't know how much difference there is between web audio and web midi api's other than "audio" and "midi" in the names of the api's. I know that flowkey.com uses midi over web.

I have been looking at https://webaudio.github.io/demo-list/ and https://www.worteldrie.com/WD5/ to get a grasp on the technology.

If we make the assumption that I have been looking in the wrong direction, or calling the technology incorrectly, shouldn't web audio still work with Alsa (again referring to my other post)?

Thanks for the reply. I am largely a practical person and therefore mainly use Linux to do daily things. For me, that is practicing music and doing other daily chores. Neither Gentoo nor Arch fit into that category for me. I could go to a systemd distro, where midi over web usually just works, but I am trying to dig a bit deeper and try to understand why something vital to what I do doesn't work. Furthermore, I don't like the largely corporate oriented direction that those distros are leading the entire Linux project towards. I could otherwise choose Void Linux, which I have had better success with midi over web, but the community is lacking. While Void tries their best at being lean and mean, there is notation and other music software that isn't easily available, that I can install from Devuan...

Thanks for the suggestions. However, I think that you misunderstood. All audio hardware devices in pavucontrol, the audio devices applet and in the sound control panel had disappeared. It wasn't a question of having to switch to the correct device, there were none listed. As I stated, they are back now, but for how long? Something is clearly unreliable in the mix, but what as the devices remain the same?

@ greenjeans From the related thread, it looks to me as an attempt to bypass the current Alsa patches from the install. As a point of reference, it can't be any worse than my current experiences with Alsa, and the semi functional Pipewire.

Hi. I have done it before...

Marking this as solved was premature, as today, all of the audio sources except HDMI are suddenly missing...

Cool. Thanks for that.

Firstly, I would like to thank everyone that has participated in this thread so far, providing help and suggestions. I believe that the HiFi settings are working, but not for any positive reason, but rather because midi over web has completely stopped working, as websites, like tomplay.com still go through the motions (sheet music appears, cursor moves correctly, etc.), but there is no audio whatsoever coming out. Neither backing track, nor lead melody. I have long suspected that there was a relationship between the Linux audio servers and problems that I have experienced with midi over web in the past, usually partial outages - a clear change in the reliability I expect and need. However, midi over web audio does not work at all after having changed to the HiFi settings. Zero, zilch, nada niente.

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As far as I can tell, all other audio works:

$ speaker-test --channels=2
 
speaker-test 1.2.14
 
Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 12 to 96000
Period size range from 6 to 48000
Periods = 4
was set period_size = 12000
was set buffer_size = 48000
 0 - Front Left
 1 - Front Right
Time per period = 5.001396
 0 - Front Left
 1 - Front Right

YouTube works, as does the LXMusic player...

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I should probably emphasize here, as I have done throughout this thread, that I am referring to output here. Midi over Web input will be of interest later, with sites such as flowkey.com, but at this point, I am only concerned about getting midi over web to work with tomplay.com output. The concept is the same as with 8notes.com, but more advanced in my opinion, should someone be familiar with 8notes.