RME User Forum — INT clock / SRC - no SPDIF signal

Re: INT clock / SRC - no SPDIF signal

null@example.com (waedi) — Mon, 08 Jun 2026 21:25:48 +0000

do you expect a benefit from this upsampling ?

Re: INT clock / SRC - no SPDIF signal

null@example.com (meeseeks) — Mon, 08 Jun 2026 20:57:20 +0000

Appreciate the post, but my configuration is now working as I had hoped.

48kHz is indeed what it seems fixed to, though with the SRC feature, it should be able to convert that up to a 1:7 rate (Section 8.6).

Re: INT clock / SRC - no SPDIF signal

null@example.com (waedi) — Mon, 08 Jun 2026 20:45:30 +0000

Samsung TV has a fix sample rate 48kHz, it can't sync to other devices, right ?
Your setting clock source should be external (Samsung TV) or auto

Re: INT clock / SRC - no SPDIF signal

null@example.com (meeseeks) — Mon, 08 Jun 2026 20:25:34 +0000

Odd, I just went back to adjust the settings again to confirm that the signal worked fine when setting the Clock Source to Auto; then after moving it back to INT, it's now working!

State Overview now shows:
- SP op: lock, 48 kHz, cons, 24-bit
- USB: conn, 192 kHz, 6/8
- SRC: SPDIF
- Clock Source: INT

Not sure why it's suddenly different, but it seemed me stepping away for a bit must have helped. For posterity I've a Samsung TV connected to it.

Re: INT clock / SRC - no SPDIF signal

null@example.com (RME Support) — Mon, 08 Jun 2026 19:44:46 +0000

What exactly is connected to the input?

INT clock / SRC - no SPDIF signal

null@example.com (meeseeks) — Mon, 08 Jun 2026 18:26:14 +0000

It could be that I've misunderstood whether this is possible, but I'm running into an issue where SPDIF input has no signal when SRC is enabled and clock is set to INT. I think Section 27.2 describes this setup for running multiple clock masters, so from what it seems, my configuration is correct.

My setup:
- ADI-2/4 Pro SE, DSP 40
- USB connected, CC-Mode: 6/8 multichannel
- SPDIF In: Optical
- Clock Source: INT (192 kHz)
- SRC: SPDIF In
- SRC Gain dig.: 0 dB

State Overview shows:
- SP op: lock, 48 kHz, cons, 16-bit
- USB: conn, 192 kHz, 6/8
- SRC: SPDIF
- Clock Source: INT

The SPDIF column on the level meter screen shows no signal at all (this occurs whether INT clock is set to 192, 96, or 48 kHz). If I set Clock to SPDIF and turn SRC off, the SPDIF input works, signal appears and audio passes through normally.

Is there something I'm missing?