32 bit to 16bit wav batch converter that preserves loop points.

[Touch The Universe]

I can use audition to batch process to lower bit depth but loose all loop points. Is there a way around this in audition and/or are there any other ways to batch process 1000 or so files at once but preserve loop points (to create sfz files).

[ThomasLehmann]

Steinberg Wavelab has a batch processor that can do this. Changing the bit depth does not change the loops. However, when the sample rate is changed, the loop points are almost always shifted, that's in the nature of things and as far as I know, it always happens here.

[enroe]

Can't this be done with "wavosaur"?

As far as I remember Wavosaur keeps the loop-points.

[Touch The Universe]

Thanks guys. I tried wavosaur since it's free and it works like a charm. Loop points seem to be at the right spot too. Thanks!!!

[HAL76]

Steinberg Halion does the job by exporting the files and is on sale now.

[Touch The Universe]

Steinberg Halion does the job by exporting the files and is on sale now.

Does it batch process?

[DSmolken]

If you're happy with Wavosaur then stick with it, but just in case, SOX is also worth a look. I know I've converted a lot of files with it, not sure if any of them had loop points though.

[HAL76]

Steinberg Halion does the job by exporting the files and is on sale now.

Does it batch process?

Halion can convert all files in a program, so yes - but not batch processing of folders. You have to load the samples first.

[j_e_g]

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[j_e_g]

Sox preserves the loop points, but it doesn't adjust them if you also change the sample rate. Therefore, when using sox, the loop points will be correct if you change only the bit resolution, but not the sample rate.

Waveosaur adjusts the loop points when changing either the resolution, or the rate. Consequently, Waveosaur is the better option.

Just a heads up. Waveosaur doesn't apply any "smoothing" to the loop when changing the rate. Therefore, it's possible that the loop will have an audible "click" after changing the sample rate. The easiest fix is to go to the end point (of the loop, after the rate is changed) and move it left one sample point (shorten the loop by one sample). Mark these as the new loop points. Then do a 50% crossfade on the loop. That should fix the loop.

FYI, Adobe Audition, like sox, doesn't adjust the loop when you change rate. If you want Audition to save the loop points, make sure the Batch dialog has the box checked that asks if you want to save extra meta data. (Loop points are considered part of that data).

The linux program ocenaudio also properly adjusts the loop when changing resolution or rate. Plus, it appears to automatically do some smoothing. I therefore always using ocenaudio when changing a wave's bit resolution or sample rate. ocenaudio is a great program.

[mothra]

Wavelab can do it (among 1000 other things) and Myriad can as well (thats my go to batch converter for sample rate/normalizing/etc when I get a new sample pack)..

I would not even remotely entertain Halion as a 'wav converter'. You'll have to make a patch first, then you basically export it when you save it one wav at a time unless you make a patch with 100 layers in it or something. Not very efficient at all, it's a great sampler, not an audio editor/processor.

[SampleScience]

I'm surprised Wavosaur is still the best option for this kind of work. I'm so used to it now that it would be hard to use something else anyway.

[j_e_g]

I'm surprised Wavosaur is still the best option for this kind of work.

Waveosaur is my go-to program when it comes to looping a waveform. The ability to zoom in on both amplitude and time axis, 50% crossfade algorithm (which I find generally works better than 100% crossfade), and the easy user interface for setting loop start and end points, make it the easiest program for looping.

It's an excellent piece of freeware.

[RPH]

https://www.voxengo.com/product/r8brain/

- Very fast conversion
- Multi-threaded batch conversion
- Mono, stereo, and multi-channel support
- Virtually any input/output sample rate
- Full WAV file support
- Markers and loops support
- Batch processing

[SampleScience]

I'm surprised Wavosaur is still the best option for this kind of work.

Waveosaur is my go-to program when it comes to looping a waveform. The ability to zoom in on both amplitude and time axis, 50% crossfade algorithm (which I find generally works better than 100% crossfade), and the easy user interface for setting loop start and end points, make it the easiest program for looping.

It's an excellent piece of freeware.

I agree, it's great!