serringa
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Thread Starter
- Joined
- May 18, 2026
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- Preamp, Processor or Receiver
- yamaha RX-a1060
- Front Speakers
- canton vento 870 dc
- Center Channel Speaker
- canton vento 855
- Surround Speakers
- canton vento 870 dc
- Subwoofers
- canton as225sc (csp300 module), canton power sub 10
- Screen
- LG G5 77
Hi ,
First REW session on a freshly migrated Windows 11 laptop and I'm chasing a low input level / low SNR problem that was present from the very first sweep
Setup: Yamaha RX-A1060 (HDMI 8ch out) -> dual subs (AS225SC + PS10), REW 5.40 Beta 129, UMIK-1 with cal file on the standard (non-exclusive) input -- same selection I used for months on the old laptop with clean results (SNR typically 30-42 dB on LFE sweeps).
Symptoms tonight, roughly in order:
- LFE sweep SNR stuck around 27-34 dB even after doubling sweep length 512k->1M (gained only ~0.3 dB where roughly +3 dB per doubling is expected) -- looks level-limited, not averaging-limited.
- REW's reported SPL offset flipped between two values exactly 30 dB apart (124.9 vs 94.7) across attempts, with no intentional settings change.
- One-off error: "Microphone (Umik-1 Gain: 18dB) does not have any lines supporting PCM_SIGNED 48000.0 Hz, 16 bit" -- Windows has the mic locked at 24-bit/48k (format dropdown greyed out, which I understand is normal for the UMIK).
- Intermittent "no soundcard input data" errors needing a USB reseat.
- On a PEQ-bypassed sweep, clipping got *worse* as I lowered AVR volume (31% -> 37%) -- backwards for a simple level problem.
- Later in the night REW's output device silently fell back from the 8ch HDMI/AVR device to a 2ch device (LFE no longer selectable), producing a sweep with -149.6 ppm clock adjustment.
Already ruled out: AVR loudness DSP (YPAO Volume / Adaptive DRC / Extra Bass off for months), sound program changes, LFE -10dB pad state.
Main question: for a migrated Windows install, is there a known checklist of Windows-side audio settings (default formats, exclusive-mode flags, per-app device pinning, etc.) that commonly bite REW like this? The 30 dB SPL-offset bistability in particular feels like a recognizable fingerprint I just don't know. I’m gonna try my old laptop when I have time to verify it’s the laptop or something else. Thanks!
First REW session on a freshly migrated Windows 11 laptop and I'm chasing a low input level / low SNR problem that was present from the very first sweep
Setup: Yamaha RX-A1060 (HDMI 8ch out) -> dual subs (AS225SC + PS10), REW 5.40 Beta 129, UMIK-1 with cal file on the standard (non-exclusive) input -- same selection I used for months on the old laptop with clean results (SNR typically 30-42 dB on LFE sweeps).
Symptoms tonight, roughly in order:
- LFE sweep SNR stuck around 27-34 dB even after doubling sweep length 512k->1M (gained only ~0.3 dB where roughly +3 dB per doubling is expected) -- looks level-limited, not averaging-limited.
- REW's reported SPL offset flipped between two values exactly 30 dB apart (124.9 vs 94.7) across attempts, with no intentional settings change.
- One-off error: "Microphone (Umik-1 Gain: 18dB) does not have any lines supporting PCM_SIGNED 48000.0 Hz, 16 bit" -- Windows has the mic locked at 24-bit/48k (format dropdown greyed out, which I understand is normal for the UMIK).
- Intermittent "no soundcard input data" errors needing a USB reseat.
- On a PEQ-bypassed sweep, clipping got *worse* as I lowered AVR volume (31% -> 37%) -- backwards for a simple level problem.
- Later in the night REW's output device silently fell back from the 8ch HDMI/AVR device to a 2ch device (LFE no longer selectable), producing a sweep with -149.6 ppm clock adjustment.
Already ruled out: AVR loudness DSP (YPAO Volume / Adaptive DRC / Extra Bass off for months), sound program changes, LFE -10dB pad state.
Main question: for a migrated Windows install, is there a known checklist of Windows-side audio settings (default formats, exclusive-mode flags, per-app device pinning, etc.) that commonly bite REW like this? The 30 dB SPL-offset bistability in particular feels like a recognizable fingerprint I just don't know. I’m gonna try my old laptop when I have time to verify it’s the laptop or something else. Thanks!
