DN5@psuvm.psu.edu (D. Jay Newman) (06/12/91)
Hi: I am writing a language testing program which uses digitized speach. We have experimented, and need speach at 22kHz. Our problem is that the sound for 50 questions uses over 40 meg of disk! (And this is for sound alone, we haven't tried storing the 8-bit color images, yet.) Does anybody have any good references to sound compression techniques? Will QuickTime compress sound? (I've read the announcements, and I didn't see any sound specific compression, only image compression stuff.) Are there any commercial products? We have experimented with the various compression ratios with the Farollan Sound System (MacRecorder), but none of them had the quality we need for language testing. Any help will be appreciated. Thanks. ()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()()() D. Jay Newman ! That is not dead which can eternal lie dn5@psuvm.psu.edu ! And with strange eons even death can die CBEL--Teaching and Learning Technologies Group
aep@world.std.com (Andrew E Page) (06/12/91)
question....do you need to save the data for strorage only, or are you going for real time sound compression/decompression? I think that Stuffit Deluxe may support a sound compression method along with the JPEG compression(very good for images), but I think you're looking for somethig to work WITHIN your application. -- Andrew E. Page (Warrior Poet) | Decision and Effort The Archer and Arrow Concepts Enginerring | The difference between what we are Macintosh and DSP Technology | and what we want to be.