Issues with naming devices using non-ASCII characters

[nd1torzelan]

My output device is "Högtalare (RIG 800HD)", correctly detected and reproduced when logging.

However, PortAudioDevices.exe shows it as "Högtalare (RIG 800HD)", and when I experimented with using the REW software (Room EQ Wizard) to create a FlexASIO.toml file for me, it also input that.

Trying to use FlexASIO with either of those as device, however, doesn't work - it finds no device.
(It works / is found in other ASIO apps.)

Any idea for fix or workaround? Thanks.

[nd1torzelan]

...Ok, bizarre. Now, after putting it to "Högtalare" with "ö" again (as I did several times before), it just works. Right after posting, just typical. :-)

So this is what I have right now; haven't gotten to fine tune latency and all that yet, but at least it works now (and lets me jam on my guitar while watching f.e. YouTube at the same time, and hear it all on my wireless headset - super!).

backend = "Windows WASAPI"
bufferSizeSamples = 64
[input]
device = "Line 1/2 (M-Audio M-Track 2X2)"
[output]
device = "Högtalare (RIG 800HD)"

Cheers, thanks for making FlexASIO!

[dechamps]

Ah, I see. Most likely this is a character encoding issue where the output encoding of PortAudioDevices.exe doesn't match the encoding that PortAudio uses. I also sense a potential problem with the producer of FlexASIO.toml using an encoding that's different from the one FlexASIO expects.

I'm reopening because this is a real problem that will happen every time someone attempts to configure a device with a name that contains non-ASCII characters. I'll need to dig into it and determine what's the best way to fix it. At the very least I should document it.

[dechamps]

In process memory, PortAudio exposes the device name Héadéset as 48 c3 a9 61 64 c3 a9 73 65 74. This matches UTF-8 encoding.

And indeed selecting a device with non-ASCII characters works as one would expect as long as the device name is written in UTF-8 to the configuration file.

However, the problem is that PortAudioDevices.exe does not convert the UTF-8 device name to the encoding used by the Windows console (which on my computer is CP 850). Thus, the names are mangled in the output of PortAudioDevices.

[dechamps]

Starting from FlexASIO 1.6, PortAudioDevices should display non-ASCII device names correctly when running in a console.

The REW control panel still doesn't work properly with non-ASCII device names because it doesn't seem to be using UTF-8 when reading the output of PortAudioDevices. I have reported the bug to @johnmgithub so that it can be fixed in REW.