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IDProjectCategoryView StatusLast Update
0000724OpenMPTFeature Requestpublic2016-08-18 13:29
ReporterRyan Albano Assigned To 
Status newResolutionopen 
Summary0000724: Independent Volume Ramp-Up/RAMP-DOWN control for each Instrument

I've been a user of OpenMPT for many years, and I recently noticed something that could really be added.
Right now, it seems that only the volume Ramp-Up can be adjusted for each instrument. But volume Ramp-Down is just as important--it's key in controlling 'pops' and 'clicks' in the sound--often more so than the Ramp-Up (attack).
However, there are some instruments where I don't want any volume ramping (up or down), such as drums. As far as I know, the only Ramp-Down control is the Master in the Setup, so I think this feature really needs adding.

TagsNo tags attached.
Has the bug occurred in previous versions?
Tested code revision (in case you know it)


child of 0000865 new Revised MPTM format - idea pool 


Saga Musix

Saga Musix

2015-11-08 22:12

administrator   ~0002174

Why would you not want any ramp down with drum samples? I suppose most of the time those are one-shot samples where you wouldn't apply any volume changes anyway.

Ryan Albano

Ryan Albano

2015-11-09 00:38

reporter   ~0002175

Look at it this way:

When most notes begin, we can usually be assured there won't be any pops in the sound. As long as where the sample begins is at flatline level, we know it won't pop.

Sample end however, is ambiguous. We don't know where the sample gets cut in a note cut. That being said, Ramp-Down is an important parameter and I'd place it explicitly on the instrument.

Some instruments I might want to give more Ramp-Down than others. Sines waves are a perfect example--I pretty much always give them more Ramp-Down. Pops will clearly be heard when a new note 'cuts out' the older one unless a good amount of Ramp-Down is added.

But as I said earlier, there are often times when I don't need volume Ramp-Down at all. A good example are saw waves. You can't hear those 'pop' because of their brightness. I've also noticed the Ramping can add unwanted artifacts to the sound, so most of the time I try to avoid using it--only use it when I need to.

Besides, every time I need to change Ramp-Down, I have to access the setup. I'd much rather save the Ramp-Down to the Instruments where I need them.

Issue History

Date Modified Username Field Change
2015-11-08 20:38 Ryan Albano New Issue
2015-11-08 22:12 Saga Musix Note Added: 0002174
2015-11-08 22:17 Saga Musix Priority high => normal
2015-11-09 00:38 Ryan Albano Note Added: 0002175
2016-08-18 13:29 Saga Musix Relationship added child of 0000865