No sound output from REW, center channel only

pwrstick

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Thread Starter
Joined
Jan 9, 2023
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Preamp, Processor or Receiver
AVR-X3700H
Front Speakers
B&W 606 S2
Center Channel Speaker
B&W HTM6 S2
Surround Speakers
B&W M-1
Front Height Speakers
Polk OWM3
Rear Height Speakers
Polk OWM3
Subwoofers
SVS PB-1000 Pro
Video Display Device
LG CX 77"
Newbie here using REW for the first time, having trouble measuring my center channel speaker.

On a Macbook Air M2, I'm using an Anker USB-C to HDMI dongle to connect to my Denon AVR-X3700h which is running a 5.1.4 speaker configuration (though I'm just testing 5.1 right now). I've configured my AVR in the MIDI setup tool on the Mac, and all speakers are outputting as expected when I hit the test sound, including my center channel. As shown here:
1673284573810


Oddly, from within REW I can take measurements of every speaker except my center channel. When I go to measure the center channel, it creates no sound for measurement. Here is the measurement configuration screen:
1673284677542


Any help on outputting sound to the center channel for measurement is appreciated!
 

John Mulcahy

REW Author
Joined
Apr 3, 2017
Messages
6,369
You may need to adjust the channel mapping in REW's soundcard preferences if you haven't already done that, from your Audio Midi Setup screenshot the C is on channel 4 (usually sub) and the sub is on channel 3 (usually C).
 
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pwrstick

Registered
Thread Starter
Joined
Jan 9, 2023
Messages
2
More  
Preamp, Processor or Receiver
AVR-X3700H
Front Speakers
B&W 606 S2
Center Channel Speaker
B&W HTM6 S2
Surround Speakers
B&W M-1
Front Height Speakers
Polk OWM3
Rear Height Speakers
Polk OWM3
Subwoofers
SVS PB-1000 Pro
Video Display Device
LG CX 77"
That was totally it! I'm documenting what I did below in case anyone else runs into this. I set the output channel mapping to match what was in the Midi settings as you pointed out. Thank you for your help.

1673502615865
 

Sixof1

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Joined
Jan 16, 2023
Messages
8
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Preamp, Processor or Receiver
Meridian 568.2MM and HD621
Main Amp
Innersound Electrostatic Stereo L+R
Additional Amp
Quad 520f
Other Amp
Innersound Electrostatic Mono for Centre Channel
Universal / Blu-ray / CD Player
Oppo BDP-103
Front Speakers
Quad ESL-63
Center Channel Speaker
Quad ESL-63
Surround Back Speakers
Quad ESL-63
Subwoofers
Pair JL Fathom F112 V1
Other Speakers or Equipment
DVDO VP50
Video Display Device
Samsung el cheapo 65"
Screen
Stewart Firehawk 100"
Remote Control
Logitech Harmony
Streaming Equipment
iFi Zen Stream
Streaming Subscriptions
Tidal Hi-fi
Other Equipment
Sony VPL-VW100
I am new to REW and am struggling to get any sound out of my system to enable measurement. I have only a centre channel (i.e mono) along with 2 subwoofers at the moment as my other speakers are under repair. My digital controller is a Meridian 568.2MM coupled with a Meridian HD-621 HDMI audio interface. The 568 is configured as a certain input from the laptop. The HDMI cable is connected from my laptop to the 621 as output and is read as such in Windows 10. Input to the laptop is a Dayton UMM-6. I have followed all REW guidelines and have either Java or ASIO to choose from. Neither produces sound when the 568 volume controls are used. In Preferences, channel mapping is set to Centre.

I am obviously doing something fundamentally wrong and would appreciate any constructive advice to get me started on analysing my room to improve speaker and sub integration. I already have the subs and speaker time aligned using the REW SPL meter.
 

John Mulcahy

REW Author
Joined
Apr 3, 2017
Messages
6,369
How have you set the "Linear PCM" property in the 621? REW's HDMI signals are linear PCM, so it would need to be 6-channel or 8-channel depending on whether your system is 5.1 or 7.1.

When you say "In Preferences, channel mapping is set to Centre." what do you mean?
 

Sixof1

Registered
Joined
Jan 16, 2023
Messages
8
More  
Preamp, Processor or Receiver
Meridian 568.2MM and HD621
Main Amp
Innersound Electrostatic Stereo L+R
Additional Amp
Quad 520f
Other Amp
Innersound Electrostatic Mono for Centre Channel
Universal / Blu-ray / CD Player
Oppo BDP-103
Front Speakers
Quad ESL-63
Center Channel Speaker
Quad ESL-63
Surround Back Speakers
Quad ESL-63
Subwoofers
Pair JL Fathom F112 V1
Other Speakers or Equipment
DVDO VP50
Video Display Device
Samsung el cheapo 65"
Screen
Stewart Firehawk 100"
Remote Control
Logitech Harmony
Streaming Equipment
iFi Zen Stream
Streaming Subscriptions
Tidal Hi-fi
Other Equipment
Sony VPL-VW100
Self explanatory screenshots follow: Input H3 (the laptop) automatically connects to the 568 when source is selected. No settings have changed since my initial query was raised. Cheers.

Screenshot 4
Screenshot 5
Screenshot 12
Screenshot 13
Screenshot 15
Screenshot 16
Screenshot 17
Screenshot 18
Screenshot 19
 

Sixof1

Registered
Joined
Jan 16, 2023
Messages
8
More  
Preamp, Processor or Receiver
Meridian 568.2MM and HD621
Main Amp
Innersound Electrostatic Stereo L+R
Additional Amp
Quad 520f
Other Amp
Innersound Electrostatic Mono for Centre Channel
Universal / Blu-ray / CD Player
Oppo BDP-103
Front Speakers
Quad ESL-63
Center Channel Speaker
Quad ESL-63
Surround Back Speakers
Quad ESL-63
Subwoofers
Pair JL Fathom F112 V1
Other Speakers or Equipment
DVDO VP50
Video Display Device
Samsung el cheapo 65"
Screen
Stewart Firehawk 100"
Remote Control
Logitech Harmony
Streaming Equipment
iFi Zen Stream
Streaming Subscriptions
Tidal Hi-fi
Other Equipment
Sony VPL-VW100
My problem has not changed - I would appreciate a response from the REW experts, if possible.
 

John Mulcahy

REW Author
Joined
Apr 3, 2017
Messages
6,369
Difficult to know what to suggest. You could try selecting other output channels to see if somehow the channel mapping is wrong.
 

Sixof1

Registered
Joined
Jan 16, 2023
Messages
8
More  
Preamp, Processor or Receiver
Meridian 568.2MM and HD621
Main Amp
Innersound Electrostatic Stereo L+R
Additional Amp
Quad 520f
Other Amp
Innersound Electrostatic Mono for Centre Channel
Universal / Blu-ray / CD Player
Oppo BDP-103
Front Speakers
Quad ESL-63
Center Channel Speaker
Quad ESL-63
Surround Back Speakers
Quad ESL-63
Subwoofers
Pair JL Fathom F112 V1
Other Speakers or Equipment
DVDO VP50
Video Display Device
Samsung el cheapo 65"
Screen
Stewart Firehawk 100"
Remote Control
Logitech Harmony
Streaming Equipment
iFi Zen Stream
Streaming Subscriptions
Tidal Hi-fi
Other Equipment
Sony VPL-VW100
This is embarrassing - I've just discovered that the Preferences panel cannot be reduced in size on my laptop to show the "Next" button, so I could not proceed to the next screen. There is no help available in Windows 10 to reduce the scale to expose this button, nor is there a means within your APP. Perhaps when this is rectified I may be able to find out why I cannot raise the volume level, within REW.
 

John Mulcahy

REW Author
Joined
Apr 3, 2017
Messages
6,369
People miss that even when the button is visible, the design has been changed in the 5.20.14 early access build to do away with the buttons. WASAPI exclusive drivers generally bypass Windows audio processing, including volume controls.
 

Sixof1

Registered
Joined
Jan 16, 2023
Messages
8
More  
Preamp, Processor or Receiver
Meridian 568.2MM and HD621
Main Amp
Innersound Electrostatic Stereo L+R
Additional Amp
Quad 520f
Other Amp
Innersound Electrostatic Mono for Centre Channel
Universal / Blu-ray / CD Player
Oppo BDP-103
Front Speakers
Quad ESL-63
Center Channel Speaker
Quad ESL-63
Surround Back Speakers
Quad ESL-63
Subwoofers
Pair JL Fathom F112 V1
Other Speakers or Equipment
DVDO VP50
Video Display Device
Samsung el cheapo 65"
Screen
Stewart Firehawk 100"
Remote Control
Logitech Harmony
Streaming Equipment
iFi Zen Stream
Streaming Subscriptions
Tidal Hi-fi
Other Equipment
Sony VPL-VW100
I have downloaded 5.20.14, but I still cannot find volume controls for output - where are they?
 

Sixof1

Registered
Joined
Jan 16, 2023
Messages
8
More  
Preamp, Processor or Receiver
Meridian 568.2MM and HD621
Main Amp
Innersound Electrostatic Stereo L+R
Additional Amp
Quad 520f
Other Amp
Innersound Electrostatic Mono for Centre Channel
Universal / Blu-ray / CD Player
Oppo BDP-103
Front Speakers
Quad ESL-63
Center Channel Speaker
Quad ESL-63
Surround Back Speakers
Quad ESL-63
Subwoofers
Pair JL Fathom F112 V1
Other Speakers or Equipment
DVDO VP50
Video Display Device
Samsung el cheapo 65"
Screen
Stewart Firehawk 100"
Remote Control
Logitech Harmony
Streaming Equipment
iFi Zen Stream
Streaming Subscriptions
Tidal Hi-fi
Other Equipment
Sony VPL-VW100
Thanks for the obvious answer, but I still cannot change the volume level - please see the screenshot including the Levels. As you know I only have 1 centre speaker with 2 subs, and output is set to "C". No sound is heard but the sweep has measured the muted input; why is the Output level -96dB and seemingly cannot be changed? Cheers.
First measurement
 

John Mulcahy

REW Author
Joined
Apr 3, 2017
Messages
6,369
The meter only shows a meaningful level while a signal is playing. Try using the signal generator to play a tone.
 

Sixof1

Registered
Joined
Jan 16, 2023
Messages
8
More  
Preamp, Processor or Receiver
Meridian 568.2MM and HD621
Main Amp
Innersound Electrostatic Stereo L+R
Additional Amp
Quad 520f
Other Amp
Innersound Electrostatic Mono for Centre Channel
Universal / Blu-ray / CD Player
Oppo BDP-103
Front Speakers
Quad ESL-63
Center Channel Speaker
Quad ESL-63
Surround Back Speakers
Quad ESL-63
Subwoofers
Pair JL Fathom F112 V1
Other Speakers or Equipment
DVDO VP50
Video Display Device
Samsung el cheapo 65"
Screen
Stewart Firehawk 100"
Remote Control
Logitech Harmony
Streaming Equipment
iFi Zen Stream
Streaming Subscriptions
Tidal Hi-fi
Other Equipment
Sony VPL-VW100
Still no sound; looks like it is time to abandon REW and look elsewhere for a solution. Thanks for your patience with my stupidity.
 

Sixof1

Registered
Joined
Jan 16, 2023
Messages
8
More  
Preamp, Processor or Receiver
Meridian 568.2MM and HD621
Main Amp
Innersound Electrostatic Stereo L+R
Additional Amp
Quad 520f
Other Amp
Innersound Electrostatic Mono for Centre Channel
Universal / Blu-ray / CD Player
Oppo BDP-103
Front Speakers
Quad ESL-63
Center Channel Speaker
Quad ESL-63
Surround Back Speakers
Quad ESL-63
Subwoofers
Pair JL Fathom F112 V1
Other Speakers or Equipment
DVDO VP50
Video Display Device
Samsung el cheapo 65"
Screen
Stewart Firehawk 100"
Remote Control
Logitech Harmony
Streaming Equipment
iFi Zen Stream
Streaming Subscriptions
Tidal Hi-fi
Other Equipment
Sony VPL-VW100
Thanks for the advice - I could not get sounds via digital input, so reverted to analogue and now can begin REW again. Cheers. I would love to know why digital does not work on my equipment however.
 
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