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I can hear my PC think through my speakers

staticV3 said:
The software is free (Room EQ Wizard/Multitone Loopback Analyzer).
Click to expand...
Could you elaborate on the REW/Multitone check?

I checked my RME unit with their own prepared files for bitperfect status and it passed the test for all USB sample rates. But this method is not applicable for other DACs.
 
johny_2000 said:
Could you elaborate on the REW/Multitone check?
Click to expand...
You can use REW and Multitone to play all sorts of test tones, then record and analyze the motherboard's output and check against the original.

If the motherboard is doing anything to the audio, then it'll show up there.
 
johny_2000 said:
I was wondering if the digital data gets any manipulation this way, like bit depth or sample rate conversion, from the codec chip or its driver. So some tools will be needed to check the bitperfect status of the TOSLINK connection of the PC's onboard audio system.
Click to expand...
The codec does no conversions. If using windows WASAPI exclusive/ASIO or linux alsa hw:xxx no conversions are done either. I doubt the IntelHDA driver does any format (bitdepth) conversions.
Of course the windows mixer modifies the samples, just like pulseaudio/pipewire do in linux. But those components can be bypassed.
 
staticV3 said:
A $20 Cubilux SPDIF to USB converter is the only tool required to check the motherboard's SPDIF output. The Hifime UR23 can also be used.

The software is free (Room EQ Wizard/Multitone Loopback Analyzer).
Click to expand...
Woah I wasn't aware. I got two units of SMSL PO100 Pro for this task.
For that I could have had 6 of these converters. Damn.

I found this on Amazon https://www.amazon.de/-/en/Automatic-Switcher-Wireless-Dolby-AC3-Compatible-black/dp/B0D45GY575/

Does this mean I can use it to use my two Devices with S/PDIF and remove the USB out of the equation?
 
Last edited:
DEF said:
Woah I wasn't aware. I got two units of SMSL PO100 Pro for this task.
Click to expand...
The PO100 Pro is USB in->SPDIF out.
The devices I mentioned are SPDIF in->USB out.

They fulfill different tasks.

DEF said:
I found this on Amazon https://www.amazon.de/-/en/Automatic-Switcher-Wireless-Dolby-AC3-Compatible-black/dp/B0D45GY575/

Does this mean I can use it to use my two Devices with S/PDIF and remove the USB out of the equation?
Click to expand...
I don't know your signal chain and what you want to achieve, so I can't answer that.
 
staticV3 said:
The PO100 Pro is USB in->SPDIF out.
The devices I mentioned are SPDIF in->USB out.

They fulfill different tasks.


I don't know your signal chain and what you want to achieve, so I can't answer that.
Click to expand...
I got a iPad Pro with the PO 100 Pro connected going into my RME ADI 2 DAC FS S/PDIF / TOSLINK in.
Getting that article means I can connect my PC TOSLINK to it and it will automatically switch it!
Above Article got 196kHz, LINDY only 96

I might buy from barax ( LINDY) brand because more sturdy looking.

www.barax.de

Lindy 4 Port Automatic Optical Audio Switch - Audio-Switch - 4 x TOSLINK - Desktop

Lindy 4 Port Automatic Optical Audio Switch - Audio-Switch - 4 x TOSLINK - Desktop
www.barax.de www.barax.de
 
DEF said:
Woah I wasn't aware. I got two units of SMSL PO100 Pro for this task.
For that I could have had 6 of these converters. Damn.
Click to expand...
IIUC the specs those convertors support only 16bits. I am not sure it would be usable for checking on SPDIF 24bit streams.
 
DEF said:
Woah I wasn't aware. I got two units of SMSL PO100 Pro for this task.
For that I could have had 6 of these converters. Damn.
Click to expand...
Don't be discouraged. I think the SMSL PO100 Pro is a very good device that can handle a lot of physical connection standard conversions.
 
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phofman said:
IIUC the specs those convertors support only 16bits. I am not sure it would be usable for checking on SPDIF 24bit streams.
Click to expand...
In the SMSL PO100 Pro specifications up to 24 bits.
1727555663547.png
 
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johny_2000 said:
In the SMSL PO100 Pro specifications up to 24 bits.
View attachment 395271
Click to expand...
Yea but for the price of the SMSL PO100 Pro I can get lots more of these 24 bits units.
And all I care for is latency being low in good bit depth.
I don't need the extra output / inputs

Refund= 2x €58.49 => 116.98 EUR

Cost of upgrade => 80.97 EUR ( including cubilux, auto toslink switcher, table clamps )
Previously one of the units was unused anyways.

I've read some reviews and it appears those cables are not that great of a design, hinting they may have heat / reset issues.
I will stay on the SMSL.
 
Last edited:
phofman said:
I do not have any, maybe Cubilux has more models but this one for 20USD claims 16bit only https://www.cubilux.com/products/spdif-to-usb-a-receiver
Click to expand...
You're right. Their SPDIF receivers only go up to 16/48.

Their transmitters OTOH support 24/192:
www.cubilux.com

USB A to TOSLINK Optical Audio Adapter-Black

HIGHLIGHT [Instantly Connect your USB A Devices to S/PDIF Sound System] – Cubilux USB A to S/PDIF Optical Audio Converter lets you easily connect your USB Type A laptop, computer or gaming console with sound bar, home audio system, external DAC, amplifier, preamp or speaker to enjoy lossless...
www.cubilux.com
www.cubilux.com

USB C to SPDIF Transmitter

HIGHLIGHT [Convert USB Port to SPDIF Transmitter] – Cubilux S/PDIF Output Adapter lets you transmit the optical audio signal from the USB Type C port of computers to soundbars, home audio system, external DAC or amplifier to enjoy 5.1 surround sound. [For Output ONLY] – This converter cannot be...
www.cubilux.com

That makes the cheapest 24bit receiver the Hifime UR23, afaik.
This one I own and can recommend.
No heat-related issues.
 
Sokel said:
Ok,that will sound weird but do you want to know real crazy?

Typical PC > foobar > DAC,ok?
All the nice CPU/GPU/mouse/fans/etc noises evident when played with shared output ,dead silent with ASIO output.
Click to expand...
That's wild. I'd want to make sure that there isn't some sort of input monitoring active, including on the onboard audio.
 
Rainier939 said:
Correct
Click to expand...
Please connect the power cable for the E30 to a USB port on your PC so that both cables are powered by your PC without the additional power supply.

Can you please test whether the problem still exists when playing music via the PC?
 
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