Re: [LAU] Wav loop points

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To: Louigi Verona <louigi.verona@...>
Cc: linux-audio-user <linux-audio-user@...>
Date: Tuesday, December 11, 2012 - 11:54 am

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The most common formats for "loops defined inside an audio file" have
historically been non-WAV (or extensions to wav), such as REX, and
proprietary.

The WAV spec does include the concept of a playlist, consisting of cue
points and lengths. By themselves, these don't really define "loops" in a
way that is generally going to be clear to the user.

libsndfile can definitely read these from the file, but i'm not sure what
an app would do with them. providing a sample with a loop point(s) defined
would be good.

On Tue, Dec 11, 2012 at 3:27 AM, Louigi Verona wrote:

> *Wrote this some time ago to the list, never got a reply. Now looking

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The most common formats for "loops defined inside an audio file" =
have historically been non-WAV (or extensions to wav), such as REX, and pro=
prietary.The WAV spec does include the concept of a playlist, consi=
sting of cue points and lengths. By themselves, these don't really defi=
ne "loops" in a way that is generally going to be clear to the us=
er.
libsndfile can definitely read these from the file, but i'm not sur=
e what an app would do with them. providing a sample with a loop point(s) d=
efined would be good.
On Tue, Dec 11, 2012 at 3:27 AM, Louigi Verona <louigi.verona@gmail.=
com
> wrote:
Wrote this some time ago to the list, never got a reply. Now looking thr=
ough the archives, I don't see this mail at all. I did attach a file, s=
o maybe it was filtered.This is why I am duplicating this.

Hey fellas!I notice that no Linux samplers seem to support wa=
v file loop points. All Windows DAWs that I have used s=
upport the format and there are a lot of samples out there with perfect loop points which is very useful.

I have no idea whether this is part of the spec or not but these loop=

points have been used for more than 15 years, that's for sure, since=
=20
some of these sample collections have been around during tracking days. I
did find something on loops here: http://www.sonicspot.com/g=
uide/wavefiles.html

But I think you, devs, know better than me anyway.I
think it would be great if LMMS, samplers like Petri-Foo would support=20
this, as this adds a lot of functionality. Many sample collections=20
provide perfect loops and it is tiresome to have to try to rem=
ake it by hand each time, while in some software it is simply impossible at=
all.
What do you think?ps: I can provide you with a sample example w=
ith loop points
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Messages in current thread:
[LAU] Wav loop points, Louigi Verona, (Tue Dec 11, 8:27 am)
Re: [LAU] Wav loop points, Brent Busby, (Tue Dec 11, 3:30 pm)
Re: [LAU] Wav loop points, Louigi Verona, (Tue Dec 11, 5:34 pm)
Re: [LAU] Wav loop points, Brent Busby, (Tue Dec 11, 5:42 pm)
Re: [LAU] Wav loop points, Patrick Shirkey, (Tue Dec 11, 12:03 pm)
Re: [LAU] Wav loop points, Kaza Kore, (Thu Dec 13, 12:45 pm)
Re: [LAU] Wav loop points, Louigi Verona, (Fri Dec 14, 9:35 am)
Re: [LAU] Wav loop points, Louigi Verona, (Wed Apr 2, 9:36 am)
Re: [LAU] Wav loop points, Louigi Verona, (Tue Dec 11, 12:20 pm)
Re: [LAU] Wav loop points, Paul Davis, (Tue Dec 11, 12:28 pm)
Re: [LAU] Wav loop points, Louigi Verona, (Tue Dec 11, 12:31 pm)
Re: [LAU] Wav loop points, Louigi Verona, (Tue Dec 11, 12:37 pm)
Re: [LAU] Wav loop points, Paul Davis, (Tue Dec 11, 11:54 am)
Re: [LAU] Wav loop points, Paul Davis, (Tue Dec 11, 11:56 am)
Re: [LAU] Wav loop points, Nils Gey, (Tue Dec 11, 11:05 am)