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delay in vst

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Frederico Roldão

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Apr 15, 2007, 6:18:21 AM4/15/07
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I bought a Roland D50 and connected it to my PC via a midi-usb adapter.
After many clicks finally I managed to have some sound come out of the PC
when I played the D50's keyboard. However, when I used a host (Minihost,
which has only 361Kb!...) to be able to take advantage of VST instruments, I
came to the sad conclusion that there's a delay between the pressing of the
key and the hearing of the sound!... This makes it virtually impossible to
play anything properly. I then used V-Stack instead and the result was even
worse, the delay increased by around 2 seconds!
Is there a way to prevent and avoid this annoying situation?
My PC is a Pentium IV 1.5 with 512Mb RAM.


Roger Bagula

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Apr 25, 2007, 9:23:52 AM4/25/07
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I post problem found in newsgroups to my egroup :
here is answer I got:
-------- Original Message --------
Subject: Re: [MusicByComputer] [Fwd: delay in vst]
Date: Tue, 24 Apr 2007 15:33:56 -0700
From: Johnny <joh...@johnnypumphandle.com>
Reply-To: MusicBy...@yahoogroups.com
To: MusicBy...@yahoogroups.com
References: <462E53F4...@sbcglobal.net>


Roger ..
Pass this on ...
You need a VST host that supports ASIO, like Minihost.
download the ASIO4ALL driver from http://www.asio4all.com/

As it stands your latency (the time for audio processing) is probably about 500 ms.
With a 1.5 ghz pentium and only 512MB of RAM, ASIO4ALL will get your latency down close to 20ms which is acceptable.
More RAM and/or a faster processor will get you under 10ms, which is not noticeable.
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