No subwoofer / phantom centre

[smoothquark]

Hi OCA. Thank you for this. I have just tried to run the script with my measurements but have run into this error...

[ERROR] Error: Optimization will not work with systems with NO subwoofer! - program execution has stopped!

Yes, I don't actually have a subwoofer. I don't have a center channel either. I actually have a Lyngdorf TDAI-3400 with the front L and R from my Denon AVC-6500H connected to the Lyngdorf. I have a pair of Lyngdorf MH-2/BW-2. The BW-2s are boundary woofers and the with the TDAI, the combination is now full-range fronts and fabulous for music and much better than via Audyssey previously, DIRAC or even your otherwise fantastic convolution tutorial.

I was hoping to get the other channels tweaked via your script but perhaps I ought to just stay with the default Audyssey? However, Audyssey interferes with the TDAI and everything sounds much better with Audyssey off! L/R bypass reduces the front volume significantly and sounds very odd when I increase the sensitivity on the analogue input on the TDAI to compensate - perhaps the centre channel does not get sent to the L & R in L/R bypass?

I shall see if I can have a play with your code to bypass the subwoofer check and use perhaps the left front as a reference rather than the centre.

[ObsessiveCompulsiveAudiophile]

Script works fine without a center speaker but lack of a subwoofer matters and deeply embedded in the code. Try adding a dummy sub to the ady and removing it after before transferring to the AVR. Could be much easier. Sent from Gmail Mobile

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On Thu 28. Mar 2024 at 20:30, smoothquark ***@***.***> wrote: Hi OCA. Thank you for this. I have just tried to run the script with my measurements but have run into this error... [ERROR] Error: Optimization will not work with systems with NO subwoofer! - program execution has stopped! Yes, I don't actually have a subwoofer. I don't have a center channel either. I actually have a Lyngdorf TDAI-3400 with the front L and R from my Denon AVC-6500H connected to the Lyngdorf. I have a pair of Lyngdorf MH-2/BW-2. The BW-2s are boundary woofers and the with the TDAI, the combination is now full-range fronts and fabulous for music and much better than via Audyssey previously, DIRAC or even your otherwise fantastic convolution tutorial. I was hoping to get the other channels tweaked via your script but perhaps I ought to just stay with the default Audyssey? However, Audyssey interferes with the TDAI and everything sounds much better with Audyssey off! L/R bypass reduces the front volume significantly and sounds very odd when I increase the sensitivity on the analogue input on the TDAI to compensate - perhaps the centre channel does not get sent to the L & R in L/R bypass? I shall see if I can have a play with your code to bypass the subwoofer check and use perhaps the left front as a reference rather than the centre. — Reply to this email directly, view it on GitHub <#7>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACLH4THBNOYNBLOWGTOIVETY2RATZAVCNFSM6AAAAABFNGJM2WVHI2DSMVQWIX3LMV43ASLTON2WKOZSGIYTGNZWGU2DKMI> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[smoothquark]

Thank you. I shall try that.

[smoothquark]

I have managed to insert a dummy subwoofer into the .ady and went through the script successfully. Testing with my Lyngdorf now. Sounds good! I am now playing with the frequency curtains for the fronts to see whether AudysseyOne trumps the Lyngdorf.
Just wondering whether as a feature request for the script, whether it may be worth having the ability to insert a dummy subwoofer if one does not exist?

[ObsessiveCompulsiveAudiophile]

Well done! Sent from Gmail Mobile

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On Fri 29. Mar 2024 at 18:19, smoothquark ***@***.***> wrote: I have managed to insert a dummy subwoofer into the .ady and went through the script successfully. Testing with my Lyngdorf now. Sounds good! I am now playing with the frequency curtains for the fronts to see whether AudysseyOne trumps the Lyngdorf. Just wondering whether as a feature request for the script, whether it may be worth having the ability to insert a dummy subwoofer if one does not exist? — Reply to this email directly, view it on GitHub <#7 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACLH4TED5MVEQRLP2LAUHB3Y2VZ6HAVCNFSM6AAAAABFNGJM2WVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDAMRXGM3TKNJRHE> . You are receiving this because you commented.Message ID: ***@***.***>

[michaelbarkan]

I have managed to insert a dummy subwoofer into the .ady and went through the script successfully. Testing with my Lyngdorf now. Sounds good! I am now playing with the frequency curtains for the fronts to see whether AudysseyOne trumps the Lyngdorf. Just wondering whether as a feature request for the script, whether it may be worth having the ability to insert a dummy subwoofer if one does not exist?

Can you please outline how you would do that (add a "dummy subwoofer"). Thanks.

[smoothquark]

Can you please outline how you would do that (add a "dummy subwoofer"). Thanks.

I used https://jsoneditoronline.org/ to edit the .ady.

1. Upload your .ady (keep a backup of course), and you will see detectedChanels (10 in my case - 6.0.4 system).
2. You then have to add the extra subwoofer channel to the list.
3. enChannelType: 42
4. responseData no. of items has to match the other channel measurements.

I have uploaded my .ady files with and without the dummy subwoofer files. I am hoping OCA may find the time to incorporate the option to create a dummy subwoofer in his script.
test-ady.zip

[michaelbarkan]

Thank you very much. I'll pass it along.
Michael

[strusic]

I cant get this to work. I have copied sub branch from your ady file to mine but it didnt work. Ive got this error:
[ERROR] Error: Speaker names have different numbers of indices. - program execution has stopped!

[smoothquark]

I think I had the same message before I corrected the no. of responseData items in the dummy subwoofer entry to match that of the other speakers. Mine was based on 4 measurements.

[strusic]

Okay I managed to do this. But... Sound is now terrible compared to default audyssey calibration. It sound like 64kbps mp3 file. There is no bass, high frequencies are cutted. I am using X1700h with Polks XT

[smoothquark]

Did you remove the dummy subwoofer entry after the corrections? Not sure if it will make a difference though. On my system, OCA's script was a clear improvement.

[strusic]

Dont remember. I have disabled sub in avr settings tho.
Edit: Also all speaker distance are set to 0.04m now (after optimization), which is incorrect