Raspberry Pi / x86 PC both see it as an audio device w/ 8 channels and can be configured through software to send 8 discreet audio channels at 24bit/192. Just like any other 8ch, 24/192 capable sound card.
Well there you go. So if your dac has good clocking, this seems like a cheap choice, if you can live with only having x48fs available and resample everything to that rate previous, or on a PC. Seems like a natural partner with CamillaDSP.
48kHz, 96kHz, 192kHz, 384kHz, 768kHz
x48fs is an abbreviation for all frame-sync (fs) 48x multiples, as opposed to 44.1. fs can also refer to frames/s. either could apply here, but I was referring to frame sync. (FS is also referred to in i2s as LRCK sometimes)
I presume its capable of the others, up to and including 192kHz, or is it just 192kHz?
x48fs is an abbreviation for all frame-sync (fs) 48x multiples, as opposed to 44.1. fs can also refer to frames/s. either could apply here, but I was referring to frame sync. (FS is also referred to in i2s as LRCK sometimes)
I presume its capable of the others, up to and including 192kHz, or is it just 192kHz?
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No problem @DarpMalone, thanks for the heads up and confirmation that these work as listed. Think I might grab one to mess around with in the test rig until i'm done with the XMOS board. Grabbed a couple rpi4 compute modules some time ago to work on a streamer baseboard and this could be a neat temporary solution.
It is extracting 8 channels. I have tested it connecting my PC HDMI to the board, and play some 8 channel content with pot player, and then connecting the different I2S outputs to a DAC. Different DATA pins play Left, Right, Center, SL, SR, subwoofer, SBL and SBR channels.
I also have another tiny board that only extract stereo PCM from HDMI signal.
I finally got my MOTU V4HD in, and it converts 8 channel SDI to 8 channel ADAT no problem! The issue is that it doesn't recognize the signal from the 'Audio Only' port of the audio extractor I got from Aliexpress. I think it's because the video signal from it is 60.5Hz; (at least that's what my LG TV says).
So I'm limited to 720p until I find an audio extractor (or matrix/down-scaler) I'm reasonably sure with output an acceptable frame rate. (Also, the fan on the V4HD is a bit annoying. I'm wondering if I could swap it out for a quieter one.)
So I'm limited to 720p until I find an audio extractor (or matrix/down-scaler) I'm reasonably sure with output an acceptable frame rate. (Also, the fan on the V4HD is a bit annoying. I'm wondering if I could swap it out for a quieter one.)
The specifications for AES/EBU or SPDIF have to be met irrespective of the video signal frequencies.
I'm not 100% sure what you mean. It's outputted from an HDMI port with a video signal, and the audio format seems to be exactly the same as standard PCM HDMI audio. The 'Audio Only' port works fine with my old Yamaha receiver, and it will report PCM as well.
Here's the diagnostic screen from my LG UM7300 for 'Audio Only':
Versus a standard 720 signal:
Here's the diagnostic screen from my LG UM7300 for 'Audio Only':
Versus a standard 720 signal:
Correct; I'm using an AJA HDMI to SDI converter as I previously stated. Audio works fine on the V4HD while using it for a normal 720p HDMI signal, (shown at the bottom of my previous post).
Doesn't look like the AJA will accept the audio only video signal. SD-HDI at 720p seems to be a no-go.
It's 'HD-SDI', and 720p works fine when using a normal signal (shown on the lower HDMI Diagnostics screen). The signal light on the AJA converter turns on with 'Audio Only', so I think it's an issue with the V4HD.
Anyway, I don't think there's any way for me to get this audio extractor working with my setup, so I'll have to try something else.
Anyway, I don't think there's any way for me to get this audio extractor working with my setup, so I'll have to try something else.