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sadicus

Synths don't playback

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Posted (edited)

This is not specific to one kind of synth. (in this case it happens to be NI Absynth 5)

The synth played back when the project was saved and closed. Opening the project and the synth is silent.
Open a new instance of the synth and it works as expected. all the routing is the same.
Now 3 instances are in the project, the original two that are useless, and the new instance that works as expected.

 

Edited by sadicus

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Posted (edited)

Troubleshoot 'no sound' as usual, starting in the synth UI, and working downstream (Audio chain) or upstream (MIDI chain), depending on what you find:

- Amp/Monitors are on, volume is up, and sound from some source other than CbB can be heard.

- Hardware Out bus meter in CbB shows signal (drag divider in Console View left if hardware outs are not showing)

- Master Bus meter in CbB shows signal.

- Synth /Instrument track meter shows output.

- Synth/Instrument track Volume is up.

- Synth/Instrument track Gain is up.

- Synth volume,  modulation and expression levels are nominal, and not getting zeroed by 'Zero Controllers on Stop'.

- Soft synth UI audio meter shows signal (may have a virtual keyboard or auditioning function you can use to test)

- A patch is loaded in the soft synth and is compatible with the pitch range in which you’re playing and channel on which your keyboard is sending.

- Soft synth UI shows MIDI input (if it has an indicator).

- MIDI track Output  is assigned to the synth in the rack.

- MIDI track meter shows MIDI output activity.

- MIDI track volume fader is up.

- MIDI track's Input Echo button is lit, either by being enabled manually or automatically by Always Echo Current MIDI Track in preferences (the default).

- MIDI track [output] Channel is  unassigned (no forced output channel; events are passed on keyboard's channel without modification) or matching the synth.

- MIDI clips/lanes are not muted.

- MIDI track records MIDI when you play, whether you can hear the result or not.

- MIDI track's Input is assigned to the port an channel (or Omni) on which your keyboard is sending.

- The recorded notes are in a pitch range that works with the loaded synth patch, and velocities and durations are nominal ( a synth patch with a very slow attack may not respond audibly to a staccato note).

- MIDI I/O activity monitor that CbB inserts in the Windows System Tray shows activity on both sides.

- Keyboard is powered up and MIDI indicator on keyboard (if present) shows activity in response to performing.

- Keyboard output channel matches MIDI track Input channel if not Omni.

 

Edited by David Baay
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Thanks. Hope it helps. There are some more obscure causes of 'no sound', but those are the biggies, and should help find the problem, even if it's not mentioned explicitly.

I'm curious to hear what you find. 

P.S. I should probably add "No tracks/buses soloed". ;^)

 

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I've had times when Absynth 5 does the same thing.  What I found it to be (most of the time) is a CC controller (like Modulation) was triggered somehow.

This has caused it to "reset" resulting in no sound.  I've toggled the preset button to the next one and back the the sound came back.

 

Now, I just add an envelope that keeps the midi control at it's original value (until I'm ready to automate).

Hope it helps.

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Yes, 'Zero Controllers when Play Stops' (mentioned in the list) in MIDI preferences  will do that with synths that use Modulation and/or Expression to control volume (the classic example is Garritan/Aria Player). If you don't want to disable the setting, adding Modulation (CC0) and Expression (CC11) events with nominal values at the start of the track for Cakewalk to ' search back' on will take care of it.

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Add a new instance that works.

Aim the old midi track at the new synth.

Aim the new midi track at the old synth.

This is a quick way to look for the problem. Look for muted anything or solo that excludes the synth.

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Excuse me for borrowing this thread. I just opened a recent project (and couple of other ones to be sure) and get no sound from synths when pressing keyboard keys. Playback works ok however. My keyboard outputs midi just fine and I see midi activity in Cakewalk. Then I inserted a new synth which works fine. I compared the settings and found out that midi inputs must be set to 'none' for correct function. I can't remember I've ever had such an issue. Actually I have never payed any attention for midi input settings as they have always worked without issues. It's not a big thing to switch all inputs to none. But what's going on here?

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