Sonar Timestretching Quality

you need to use the correct setting - i.e. mono/polyphonic source and always use best quality.

I assume you're using sonar pro and have the Mpex timestretching.

Kind regards

Dave Rich.

I noticed the same thing sometimes. It is really bad when working with a stereo sample. When it does work I've had better luck using groove clip looping but then you need the original bpm and all that stuff (also uses RAM). Also I sometimes get a silent sample when I use timestretch. Feature could use some rehashing.

ORIGINAL: name1432

Sounds bad to me too; but time-stretching is an effect that can be provided by a third-party plugin. So that Sonar can remain affordable, I actually hope Cakewalk won't spend their resources on competing with plug-in providers.

Is there any consensus on what the best time stretching application is?

Here's two examples:

Sonar at 90%: http://www.dikkechill.com/xspringe/sonar90.mp3
Sonar at 110%: http://www.dikkechill.com/xspringe/sonar110.mp3

I've got a few more examples, some are a lot worse but I haven't had the opportunity yet to transfer them from the studio.

I'm one hundred percent sure. You don't even want to hear the quality at >25% stretching, it's just godawful. Could there be a problem with my setup that is causing this?

ORIGINAL: Qwerty69

Are you correctly setting the option for a single instrument/voice vs. an ensemble?

I am continually amazed at the sound quality of the MPEX v3 alogrithm as delivered in v4.0.2...

Something isn't working correctly.

Q.

I will post additional samples with more details on the settings tonight after I get back from the studio. Personally I think something strange is going on, it almost sounds like the clock/speed at which the sound is being stretched is unstable.

Thanks a lot for your support so far!

I've created a recording for demonstrating the problem I am encountering with the sound quality of the time stretching in Sonar. The mp3 contains the following sounds: 1. Original 2. 125%, polyphonic 3. 125%, single instrument 4. 75%, polyphonic 5. 75%, single instrument. Quality was always set to "best" and no other settings were changed.

http://www.dikkechill.com/xspringe/stretchtest.mp3


On a side note, has anyone ever experienced Sonar all of a sudden ignoring certain automation envelopes? I just spent over two hours on automating various tracks and all of a sudden a significant part of the automation envelopes began to be ignored by Sonar. This has happened to me before but I thought I did something wrong back then, but now I did not change any settings as far as I can tell. Could this be a bug? If it is, it's a pretty evil one!

You are asking too much of it to stretch like that. You need to develop the "technique".

Which is basically a combination of micro edits cross fades AND timestrectch chosen for its suitability over each factor of the sound.
MPEX is the best on the right settings, however certain material will require more clarity than any timestretch alone can deliver.

You might like to try a demo of melodyne, unfortunetely it has an interface design by a blind man and its as intuitive as a self build house, but it is the best at these jobs. I just wish they would develop version 5 all at once! so that it was at least as operable as Sonar Cubase etc.

ORIGINAL: Jake68

You are asking too much of it to stretch like that. You need to develop the "technique".

Which is basically a combination of micro edits cross fades AND timestrectch chosen for its suitability over each factor of the sound.
MPEX is the best on the right settings, however certain material will require more clarity than any timestretch alone can deliver.

You might like to try a demo of melodyne, unfortunetely it has an interface design by a blind man and its as intuitive as a self build house, but it is the best at these jobs. I just wish they would develop version 5 all at once! so that it was at least as operable as Sonar Cubase etc.

Interesting. I'd like to know more about the "technique" :)

I still find it rather curious though that even a 5% stretch introduces quite significant quality degradation issues with the soundfiles I'm testing on.

ORIGINAL: Xspringe

On a side note, has anyone ever experienced Sonar all of a sudden ignoring certain automation envelopes? I just spent over two hours on automating various tracks and all of a sudden a significant part of the automation envelopes began to be ignored by Sonar. This has happened to me before but I thought I did something wrong back then, but now I did not change any settings as far as I can tell. Could this be a bug? If it is, it's a pretty evil one!

I did some additional testing. It seems like the problem was limited to the volume envelopes this time. The strange thing is when I deleted the envelope and then undeleted them they worked fine again. Another possible clue for the cause of the problem is the fact that the mouseover information of all the envelopes that stopped working was put between parentheses and no longer displayed any value.

User error or bug? And if it's a bug, where can I submit it?

ORIGINAL: crash_3210

i had the same STOP-FUNCIONING envelopes .... t happened on a fade out of an ending of a song.... the 1st track (drums) (all audio by the way) refused to fade out and kept playing....i had to put a destructive editing method and faded it out inside SONY Sound Forge 8.0

Have you tried deleting and undeleting (CTRL-Z) the envelope? That fixed it for me. Also, does the malfunctioning envelope display it's paramater between parentheses and without a value on mouseover?