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Volume Problem

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blgentry:

--- Quote from: mwillems on August 15, 2018, 06:08:50 pm ---Are you using the hardware direct sound outputs in MC?
--- End quote ---

Yes.  I'm using one that starts with "HW:" and ends with "Direct hardware connection with no conversions".


--- Quote ---In my experience alsa sometimes has a strange relationship with maximum volume (i.e. alsamixer allows turning up a device past 0dB, which for some devices is the only way to get maximum unclipped volume).
--- End quote ---

In this case the ALSA mixer maxes out at 0dB and that's where I have it set.  I've checked numerous times.  I've also written a bit of startup script that automates this, as this DAC defaults to something like -12dB.


--- Quote ---One very easy way to rule it out is to use a different linux music player on the same box and see if you have a similar volume experience;

--- End quote ---

Not a bad idea.  I might do that.  The test I did by moving the DAC to my Mac satisfies me that this DAC producing full output.  At least with a sine wav in a playing now by itself it is.

Brian.

blgentry:

--- Quote from: JimH on August 16, 2018, 12:26:01 am ---What input are you using on the receiver?  Did you try others?

--- End quote ---

I'm using "video 1".  Over the year I've had this setup, I've tried 2 or maybe 3 different inputs.  They all behave similarly.  The specs show that all of them are 300 mV inputs.  I see what you are saying of course:  One of them might be broken.  But yes, I've ruled that out by moving from input to input.

It's possible that the CD player I'm using has a particularly hot output and this DAC is just a bit whimpy.  Combined with perhaps this receiver is calibrated funny in terms of it's volume readout.  I have to get to 40 or so to get the beginnings of a good volume.  Probably 85 dB-ish.  The volume knob ends at 70, which seems like too little space in between.  I'm used to getting maximum volume from a receiver, with a normal source, at 2/3 on the volume knob.

Maybe I should test my Schiit Modi 2 with this setup, as it's producing 1.6 V output with the same sine wave on my Mac.  But again, the receiver's inputs are only supposed to require 300 mV. 

Brian.

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