MuTools

MuTools · Post by **MuTools** » Thu Aug 01, 2019 5:10 pm

M8.1.0 is available in http://www.mutools.com/mulab/beta/

What's changed:

Sample events and sample player: Spectral stretch mode now includes a colourful spectral filter.
This filter can do soft to steep lowpass, highpass and band filters.
When rendering the sample event the filter is included.
When dropping the sample event on a sampler the filter is preserved.
Spectral stretching now features anti-aliasing when pitching up.
This results in a much more usable sound when playing stretched samples 1 or more octaves higher.
The spectral stretch property panel now is a non-modal (non-blocking) floating window. This enhances the workflow.
Editing spectral stretch properties all are undoable actions.
Spectral stretching: Lower CPU usage when pitching up.
Spectral stretching: Added a "Post End Mode" option that can be used to finetune stretched audio sequences. This option defines what is the expected audio after the stretched sample region.
It really depends on the type of sound whether this should be "Silence" (= the default) or "Next Audio".
Sequence editors: When changing values via the event property bar at the bottom, now new undo points are created when there is at least 750 ms since the last change.
Sequence editors: Fixed a bug in the undo-redo system when changing values via the event property bar at the bottom, especially when doing combis of undoing + changing the selection.
Other small improvements.

How to update:
Windows: Replace the current MuLab.exe and MuLab.ID by the new versions.
MacOS: Replace the current MuLab.app by the new version.

This still is a brand new beta version. It may not yet be ready for solid use. But if you like testing new versions and reporting issues, please give it a go and let me know your thoughts & feelings about M8.1.

Cheers,

Jo

MuTools · Post by **MuTools** » Thu Aug 01, 2019 5:20 pm

How to access the new sample filter: In an audio sequence, select 1 or more events, then at the bottom event property bar click the little options button at the right of the stretch factor. Note that the filter is only available in Spectral stretch mode.

runaudio · Post by **runaudio** » Thu Aug 01, 2019 5:44 pm

Maybe add slopes to the filter modules

MuTools · Post by **MuTools** » Thu Aug 01, 2019 5:48 pm

How do you mean?

runaudio · Post by **runaudio** » Thu Aug 01, 2019 5:52 pm

By Default filters only are set to 12db have the option to set them to 24 48db

MuTools · Post by **MuTools** » Thu Aug 01, 2019 6:24 pm

As you can see this spectral filter has a variable slope from -6 dB / Oct to -oo dB / Oct. So at max it is a perfect brickwall filter.

AndreasD · Post by **AndreasD** » Thu Aug 01, 2019 8:58 pm

As we are talking spectral stretch, a quick tip for source material:
Get yourself a Piezoceramic Transducer, which I paid less 1 Euro for, but I solder the connection cable myself.
Just literally scratch it with something, hit it with something, knock it on the table, glue it in a box as your new drum element, etc.
Record and stretch the daylight out of it. You need thunder, a backdrop hot your new horror movie. It's just there.

Spectral stretch rules!

MuTools · Post by **MuTools** » Thu Aug 01, 2019 9:04 pm

Yeah sounds great

dakkra · Post by **dakkra** » Thu Aug 01, 2019 9:54 pm

runaudio wrote: Thu Aug 01, 2019 5:52 pm By Default filters only are set to 12db have the option to set them to 24 48db

In the case you're referring to the multi-mode filter, you can chain them in series to add 12db of rolloff at a time. 2x = 24, 3x = 36, 4x=48, etc. You can also use the Chebyshev for more harmonically surgical filtering.

dakkra · Post by **dakkra** » Thu Aug 01, 2019 10:12 pm

It's a bit spontaneous, but on occasion toggling the power led for the stretch filter will crash the application. It takes a bit of spamming to accomplish. I've attached the log file as well.

Log: https://pastebin.com/uPiU8UHv

MuTools · Post by **MuTools** » Thu Aug 01, 2019 10:33 pm

Ok, will check that case again. (did check that during r&d, thought it was solid, not it seems)
Thanks.

MuTools · Post by **MuTools** » Fri Aug 02, 2019 10:32 am

More info on the filter:

Each sample event can have its own filter settings. This way you can shape your audio sequences much more.

Note that the Balance parameter in that filter defines the balance between the left section (Low+Highpass) and the right section (Bandpass/stop).

Also note that the Bandpass/stop section has a slope curve control and if you set that eg to a multi-cycle sine and the bandwidth is width enough you get a multi-peak bandpass.

MuTools · Post by **MuTools** » Fri Aug 02, 2019 12:23 pm

It turns out that the improved anti-aliased stretching has been disabled by some recent changes. Also found some other issues with M8.1.0. An update is in the pipeline. Guess i was a day or two too early with sharing this. Sorry.

sl23 · Post by **sl23** » Fri Aug 02, 2019 1:16 pm

no worries! I often wonder how you never come to a dead end where you're stumped by a bug or researching a FR! I think that is something we as users should appreciate and be thankful for

MuTools · Post by **MuTools** » Fri Aug 02, 2019 4:08 pm

M8.1.1 is available in http://www.mutools.com/mulab/beta/

What's changed:

Fixed a potential crash bug when switching on/off the spectral filter.
Switching off the spectral filter did not always work for sample events. Fixed.
Finetuned layout of the stretch property panel (Post End Audio is at the bottom now)
The enhanced anti-aliasing was not yet working in all cases. Fixed.
Fixed a potential crash bug when playing high-pitched stretched samples without filter.

How to update:
Windows: Replace the current MuLab.exe and MuLab.ID by the new versions.
MacOS: Replace the current MuLab.app by the new version.

MuTools

KVR Audio

MuLab 8.1.5