Volume scaling

Pikouchou

Member
Joined
Oct 6, 2024
Messages
14
Hi,

The actual volume scale when Wiim Ultra is not set to fixed volume goes from 0 to 100.

Is it possible to set volume scaling with négative range from -99dB (full atténuation) to 0db or + (no atténuation)
 
Upvote 3
I don't use my plus in "preamp" so I'm happy with the strong progression at the top of the curve to finely adapt my output level...but simply apart from noticing this strange curve which is difficult to understand, the relevant idea would be to offer a "classic log" curve for those using them in preamp (ultra?), it seems to me... no?
;-)
 
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Juste choice between the two usage -approaches?
for the ultra in particular?
 
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I would like this option for the other Mini/Pro(+) streamers as well. Ultimately, it's just software.

Having the option to select between two volume modes sounds like the way to go.
If WiiM does not want to switch between the 2 use-cases outlined below because this might overstrain some users, a selection of step-size would do. The default value could be 1dB/step.
@canard (separate volume control downstream) would use e.g. 0.3dB/step and I would probably choose 0.8dB or 1dB per step in my setup where the WiiM is the only volume control.

Use-case 1:
Some setups have a separate analogue volume control, thus only minor adjustments are made with the WiiM.
(this is true of my other setup, which incorporates a legacy-style analogue integrated amplifier).
Proposal: similar transfer curve as implemented now (small steps in the upper region), however 0.3xdB/step seems unnecessary to me; 0.5dB/step would do. WiiM seems to do their volume control in their uC because
AK4493SEQ can do 0 ... -127dB in 0.5dB steps.
PCM5121 can do +24dB ... -103dB in 0.5dB steps

Use-case 2:
Others control the volume digitally with the WiiM only:
Proposal: constant steps down to ca. 100dB attenuation. In case we're limited to 100 steps, 1dB/step is nice .

My Arcam A32 has an analog (digitally controlled) volume control and allows 3 different resolutions (standard (3dB?), fine (1dB) and reference (0.5dB) down to 72.5dB attenuation. I tried 0.5dB/step, but ended up using "fine", so 1dB/step would be fine for me. No idea why they limited the attenuation to 72.5dB, the IC can do -111.5 to +15.5dB in 0.5dB steps.

What do you think?
 
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I think... that initially it would be good to be able to talk here directly with technical managers at wiiim on this kind of subjects "audio"...
if responsible and competent people on these subjects...it would save everyone a considerable amount of time...
 
Still we should try to consolidate a solution we'd like to get before WiiM spends money to implement something.
I for one for example never understood in which situation the per-input-EQ helps. My speakers and room have the same flaws independent of the source.
I'd rather have a per-output-EQ, so I could connect the speakers to a DAC fed from the optical out and connect my HPA to the RCA output of the WiiM.
(Per input Pre-gain makes sense to me to adjust different sources to a similar level).

it would be good to be able to talk here directly with technical managers at wiiim
You're by far more experienced in this forum. How would you propose to get WiiM involved?
- Feature request?
- Referencing WiiM team in the chat?
- ?
 
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