Path: chuka.playstation.co.uk!news From: "Derek da Silva" Newsgroups: scee.yaroze.programming.sound Subject: sound question Date: Thu, 15 Jul 1999 00:07:12 +0100 Organization: PlayStation Net Yaroze (SCEE) Lines: 28 Message-ID: <7mj588$bjc3@chuka.playstation.co.uk> NNTP-Posting-Host: p31s03a01.client.global.net.uk X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.00.2314.1300 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300 This sound stuff is pretty darn tricky. I understand that for a 44khz sample, note 60 (middle C) plays the sample at the correct speed, and that a 22khz sample must be played an octave lower (note 48) to get the same speed. I've been using VabTool to create a VAB of my sound effects and find that 44khz samples play back correctly at note 64 and 22 khz samples at note 52. Why is this? I notice in George Bain's sound tutorial that the the example sound effects are keyed on with note 64. Looking at a SEQ player example by Jason Page I grabbed from the tutorial section of the website, all the samples in the VAB (t11.vab) play back at the correct speed with note 60. Why does a 44khz sample play back correctly at note 60 in one instance and note 64 in another? When creating a VAB of samples to use as your 'instruments' (in a SEQ)sampled at different frequencies, I suppose it must be necessary to adjust the position of middle C depending on the frequency of the sample. If so, how is this done? Thanks Derek