Sampler ping-pong loop goes slightly flat in reverse

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PhilipVasta
KVRist
161 posts since 29 Mar, 2017

Post Sun Jun 28, 2020 12:28 pm

Has anyone noticed that when playing a sample back in reverse, it's a little flat? I noticed this in the ping-pong loop mode in the Sampler because the back and forth made the pitch change more noticeable. I don't think it's a bug, just an acoustic phenomenon. Does anyone know what causes this?

PhilipVasta
KVRist
161 posts since 29 Mar, 2017

Re: Sampler ping-pong loop goes slightly flat in reverse

Post Mon Jun 29, 2020 9:19 am

I just realized I left out an important bit of info. This occurs in Cycles mode only as far as I can tell. It's also more pronounced as the Speed control is increased.

fairlyclose
KVRian
791 posts since 4 Jul, 2019

Re: Sampler ping-pong loop goes slightly flat in reverse

Post Tue Jun 30, 2020 11:50 pm

what is the sample you are hearing this on?

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antic604
KVRAF
5489 posts since 4 Jan, 2017 from Warsaw, Poland

Re: Sampler ping-pong loop goes slightly flat in reverse

Post Wed Jul 01, 2020 4:36 am

PhilipVasta wrote:
Mon Jun 29, 2020 9:19 am
I just realized I left out an important bit of info. This occurs in Cycles mode only as far as I can tell. It's also more pronounced as the Speed control is increased.
Oh, so maybe it's because the 'wavetable' is still played forward, but the playhead moves backwards? Just guessing :)
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my music - https://soundcloud.com/antic604

PhilipVasta
KVRist
161 posts since 29 Mar, 2017

Re: Sampler ping-pong loop goes slightly flat in reverse

Post Wed Jul 01, 2020 7:46 am

That's an interesting guess, I hadn't thought of that. I'm a bit surprised that no one has had a question about this before!

ihearanewworld
KVRer
9 posts since 29 May, 2019

Re: Sampler ping-pong loop goes slightly flat in reverse

Post Thu Jul 02, 2020 12:15 pm

If the sample is of an acoustic instrument, it makes plenty of sense that the tail end of the sample would be flatter than the front end.

PhilipVasta
KVRist
161 posts since 29 Mar, 2017

Re: Sampler ping-pong loop goes slightly flat in reverse

Post Thu Jul 02, 2020 2:20 pm

I agree, but I don't necessarily think that's what's going on here... I'll post a clip or something when I get th chance.

PhilipVasta
KVRist
161 posts since 29 Mar, 2017

Re: Sampler ping-pong loop goes slightly flat in reverse

Post Fri Jul 03, 2020 12:38 pm

ihearanewworld wrote:
Thu Jul 02, 2020 12:15 pm
If the sample is of an acoustic instrument, it makes plenty of sense that the tail end of the sample would be flatter than the front end.
Well... I think you're right. I played around with it and it's *not* wavering in pitch in everything. And I think the issue is, like you suggested, acoustic samples going a tad flat. I guess I've mostly used the Cycles mode in that context so that's why I was consistently getting those results. Thanks to everyone who chimed in.

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