No audio output when switching from bypass to active.

My guess is that this is a problem specific to your setup (or we would have noticed it).

Try setting the H9 to Factory Defaults (see UM), the go through all the MIDI settings, and make sure that everything you don't need is OFF.

I suspect that the Helix is sending something of which you are unaware, and that this is confusing the H9.

Sorry – I'm out of ideas.

One thing – you didn't actually say that you had connected guitar-H9-amp. Can you confirm that you did this and it still showed the problem ?

I think this happened to me tonight too, so suspect it’s an actual firmware issues buried deep somewhere. Loaded a preset via Ableton, with it loading up with the H9 engaged. If at any point I bypass it, when I next try to turn it on, it mutes the whole lot. Turn it off again, signal returns, minus the H9, obviously. Had to turn the power off and on again to get it to stop doing it.

….and I was using the H9 in front on the amp, yes. No FX loops or anything.

I’m having the same issue. When I select a preset it activates and sounds as it should. when I turn off the “Active” button the effect turns off as it should but when I press the “Active” button again I get an almost inaudible amount of sound. I can just barely hear any output. I can tell that the effect is “on” but the volume is so low that it is effectively muted. If I change presets then the volume is back to normal. It does this regardless of what preset I change from/to and happens if its activated on the effect pedal, through midi, or through the app. Any ideas?

Also, I just wne to the “Input Gain an Level Meters” within the app. I can see that the input gain is normal but the output is highly reduced.

Whereas I just wrote this off as a dead rubber. It should work, but it doesn’t, so I’ve just accepted that my H9 won’t do what I wanted it for.

We have found a possible cause for this problem. And a workaround.

Some MIDI controllers send a double precision (two byte) bank select before sending a Program Change.  This involves sending values on CC0 and CC32. It just happens that Input Swell (ISW) has a default assignment to CC32 – this means that it becomes anabled as a result of this bank select, and the swell is set by going to BYPASS and back. Since the bank is normally 0, this means that the swell is set to zero, hence silence.

The workaround is to go to SYSTEM mode, and set MIDI-RCV.CTL-ISW to something other than 32. Turn it off "—" if you are not using it.

We will change the ISW default on the next release.

Yes!
I had nearly the same here.
I used two H9 in series as insert in the master channel of a cubase project. It didn’t matter if I switched the H9 manual or with the control software from my iPad. It even didn’t matter witch H9 I tried. Both muted after an off/on of the pedals. Either with the left switch of the pedal or the control software.
Reassigning the input control in the Midi Setup to No Controller helped.
But I wondered if this controller is set up to 32 by default. If so, it will be a call for troubles.
The last entry in the attached thread directed me to the solution. https://www.eventideaudio.com/community/forum/stompboxes/help-volume-muting-new-update

I had the same issue in my h9 in my amps effect loop. I am only using input 1 and output 1 on the h9. I ended up changing the routing option from normal to pre post and it all started working. I don’t believe I have any special routes set up in the patches. At least if there are I didn’t set them. Was late and I was happy to make it work. Will look more into it this evening. Funny tho I have a Timefactor and after an update it started behaving the same way. I ended up restoring from a backup I took at the time to make it work again, perhaps changing that setting in it ( if it exists) would fix it there as well

Hi, my name is Massimiliano Atlantei

I have a problem with my EVENTIDE SPACE Serial number SP-11102 software version 5.2.oc6d

(mint condition), never used outside my house and never used that much.

Today I took my pedalboard and connected to the amp, but there’s no sound coming out of the pedal.

The pedal has its own adapter and everything works as usual – display ok, knobs working and number on display

changing when turning them, patches changing as always – but no sound. 

I have a mono connection going from the end of the chain – last pedal is delay – to the amp. 

If I disconnect the adapter the sound is ok. 

I checked if killswitch is engaged and it is not. I tried to change the bypass mode but with both 3 options no way.

I also tried to connect the pedal to the effects loop of the amp but no sound.

Can you please help me?

Thank you.

Make sure that you are using Input 1 and Output 1 – my guess is that you are not.

If you are, set the unit to DSP bypass, and see if you get sound when not ACTIVE.

Hello: Has this issue been identified. I also do not get the effect sounds when I engage the pedal. It will engage for a second then go away. I have tried new cables, inputs 1 and 2. Running guitar into pedal into amp. I tried updating to the recent firmware. Nothing. Please advise!

I resolved this on a PitchFactor pedal using the MIDI RCV CTL parameter but had to set it to something other than — or CC32; I was still getting the problem when — was selected.