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Khadas Tone Board
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03-26-2019, 03:34 PM
Could be some sort of bug in release 4.4 but since all development has moved to moOde 5 there won't be any fixes developed for prior releases.
Recommend testing with moOde 5 RC0 
03-30-2019, 08:27 PM
@liv_s
I noted your "New MoOde player" post. Nice. Have you resolved the Hardware Volume issue? Your posts have got me interested in the Khadas Tone Board. If you are willing and have the time, could you do the following couple of steps? Step 1: Code: pi@moode:~ $ lsusbThis is just an example with my Creative W2 USB-Audio adapter plugged in. Note that it had USB Vendor  roduct ID 041e:3215.I expect you'll see an entry like xCore ... or XMOS ... for your KTB. Please note the USB Vendor roduct ID XXXX:YYYY and use it in the following step.Step 2: Code: pi@moode:~ $ sudo lsusb -v -d XXXX:YYYY > ktb-lsusb.txtThe ktb-lsusb.txt file generated in this step may be long (it was 235 lines for my Creative-W2). Please send it as an attachment to your reply. Thanks. Regards, Kent
03-31-2019, 02:24 PM
(03-30-2019, 10:53 PM)liv_s Wrote: Hi Kent Thanks for that. I'll let you know if I can spot any clues. Regards, Kent
06-15-2019, 11:40 AM
So I've been diagnosing the Khadas Tone Board with Moode r5.3 and shooting Tim posts as I do. We've figured out the Hardware Volume Control detection problem. It was due to a blunder in the Khadas XMOS firmware which was inconsistently encoding the USB string descriptors for the interfaces. Tim has adjusted for this behavior in the moOde r5.3.1 update.
The good news? moOde now detects the presence of the KTB's Hardware Volume Control and the MPD config panel offers all three choices for volume control: Hardware, Software, and Disabled. The not-so good news? The Khadas hardware control function seems to work only for PCM playback. With DSD material, I have either to select Disabled or select Hardware and set moOde's volume at 100 percent. I can then play native DSD and DSD-over-PCM while controlling volume at my amplifier. This is a Khadas issue, not a moOde issue; it affects that other FOSS RPi music player too. The DAC chip spec sheet says it can do hardware control and Tim tells me it works with his Allo Katana, which uses the same chip. I've spent a lot of time on the Khadas forum reading all the back posts and then posting about the string descriptor problem. Candidly, I'm not holding my breath until they fix either this problem or solve the DSD hardware control problem. The XMOS controller is well documented and third parties have hacked a bit at the firmware. Perhaps one of the DIYaudio cognoscenti will solve the problems. Regards, Kent
09-09-2019, 11:41 AM
Where is the distortion being generated? If the downstream equipment is being overdriven by the KTB, try inserting a passive attenuator between them.
Regards, Kent
Hi guys
sorry to revisit this thread, but i've just ordered KTB. Clearly I didn't search far enough to discover any compatibility issues with moode which is very much my software of choice. With the KTB 2 seemingly on hold since one of their main developers left to start his own product line, i gather the original ktb will persist for a bit longer. I hope they fix this issue. In the meantime, just to recap, what should I do - avoid any EQ tweaking, set volume control to hardware and 100%? Perhaps I ought to add my voice to the requests that Khadas fix this issue in the firmware.
02-06-2020, 10:28 AM
Hello, here again.
this time with a Khadas Tone Board dac just acquired There is a HAT card installed (HiFiBerry Digi+ Pro) but moOde is configured to use the usb dac Everything is going fine except a PHP warning in the Audio Info Formats: PHP Warning: Invalid argument supplied for foreach() in /usr/local/bin/moodeutl on line 189 I suppose this is just a "cosmetic" issue ... but I'm not sure Thanks in advance here the moodeutl -l info Code: pi@moode-pt:~ $ moodeutl -land the aplay -l info (if needed) Code: pi@moode-pt:~ $ aplay -l
02-06-2020, 11:50 AM
moOde only supports a single configured audio device either I2S, On-board or USB.
02-06-2020, 12:09 PM
(02-06-2020, 11:50 AM)Tim Curtis Wrote: moOde only supports a single configured audio device either I2S, On-board or USB. thank you Tim, I didn't know ... I supposed that the configuration would prevail ... anyway I have just changed the RPI, I have another one without any HAT The PHP warning has gone ... but now I can see this Formats: Unable to determine formats here the moodeutl -l log Code: pi@moode-pt:~ $ moodeutl -l
02-06-2020, 12:26 PM
Thie message "Formats: Unable to determine formats" is coming from also-capabilities command that's being run by moodeutl.
I'm not sure why it's not able to detect the audio formats for your USB device. Try also-capabilities --help. |
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