CompuServe Thread

Forum unknown · Sound/Music/Speech

Digital sound

9 messages in this thread
#13597From: Steven BennettApr 2, 1986 8:57 AM
Gary… about that sound driver… wouldn't it be possible to do it using multiple writes synced to the end of the previous write? Then you could concatenate as much as can fit in memory and play it all in one shot.
#13744From: GARY SARFFApr 3, 1986 10:04 AM
I suppose you could sync the writes that way, I hadn't thought of that. I wonder if you would get any anomalous sounds (or absence of sound) when one stopped and the next began, like a popping or moment of silence. In the openpod and hal sound files there is a very noticeable background nice throughout the whole recording that was in the movie. Anyway, here is the file I got with the sound demo that has periods for the different files, some of which I don't have: 1. Hal (350) 2. Paul (350) 3. Spock (355) 4. Starwars (415) 5. War (375) 6. 2010 (400) 7. Bond (375) 8. Empire (400) 9. Openpod (350) 10. Raiders (375) 11. Startrek(415) As you can see hal and openpod share the same period, I tried to con- catenate and play them with startrek and spock and it didn't sound very good because of the disparity of sampling periods. But the program could be modified to let each section have its own period I suppose.
#13822From: Steven BennettApr 4, 1986 9:08 AM
Verrrrry interesting… What, by the way, is "Paul"? I don't have that one. But I do have several which you haven 'thaven't listed (called "Boing", and "Backtofut", and there was at least one other but I don't recall the name.) I'll have to try the times you listed and see if they improve the sound any. –>Steve Bennett
#13846From: GARY SARFFApr 4, 1986 7:06 PM
I don't have "Paul" either, Could be McCartney? or Paul from the movie Dune, or who knows. I've been experimenting with "slicing" the sound files, and joining them back together. I figured since you can use a simple join to concatenate two or more you should be able to cut them too, and you can. So you can copy from one position to another and extract individual words or sounds, into small files and then join them into another large one producing different sentences, etc, although the number of words in the samples is pretty limited. I saw some messages from you on BIX that you were going to write a music program? true? I'm interested in using the amiga for music, it has really good capabilities from the musicraft demo I saw, even if it (musicraft) had the tendency to crash all the time, even a demo was pretty impressive for the sounds that came out of it.
#14094From: Steven BennettApr 7, 1986 8:45 AM
<grin> I *am* writing a music program. It will be quite some time before it's finished, however, due to lack of time and other problems I've had (like the old version of the C compiler…). Musicraft ought to be out soon for those who want to diddle around. Activision's program ought to be out in a few months, and I have no idea what it is like (save some vague references by Sam Dicker to real time harmonic calculation). My program will be intended for serious music generation, so will include all those neat things like triplets and slurs and 64th notes and the like, of which the only other program I know of which will do the same will be EA's Deluxe Music, which will take forever to arrive. –>Steve Bennett
#14094From: Steven BennettApr 7, 1986 8:45 AM
<grin> I *am* writing a music program. It will be quite some time before it's finished, however, due to lack of time and other problems I've had (like the old version of the C compiler…). Musicraft ought to be out soon for those who want to diddle around. Activision's program ought to be out in a few months, and I have no idea what it is like (save some vague references by Sam Dicker to real time harmonic calculation). My program will be intended for serious music generation, so will include all those neat things like triplets and slurs and 64th notes and the like, of which the only other program I know of which will do the same will be EA's Deluxe Music, which will take forever to arrive. –>Steve Bennett
#13846From: GARY SARFFApr 4, 1986 7:06 PM
I don't have "Paul" either, Could be McCartney? or Paul from the movie Dune, or who knows. I've been experimenting with "slicing" the sound files, and joining them back together. I figured since you can use a simple join to concatenate two or more you should be able to cut them too, and you can. So you can copy from one position to another and extract individual words or sounds, into small files and then join them into another large one producing different sentences, etc, although the number of words in the samples is pretty limited. I saw some messages from you on BIX that you were going to write a music program? true? I'm interested in using the amiga for music, it has really good capabilities from the musicraft demo I saw, even if it (musicraft) had the tendency to crash all the time, even a demo was pretty impressive for the sounds that came out of it.
#13822From: Steven BennettApr 4, 1986 9:08 AM
Verrrrry interesting… What, by the way, is "Paul"? I don't have that one. But I do have several which you haven 'thaven't listed (called "Boing", and "Backtofut", and there was at least one other but I don't recall the name.) I'll have to try the times you listed and see if they improve the sound any. –>Steve Bennett
#13744From: GARY SARFFApr 3, 1986 10:04 AM
I suppose you could sync the writes that way, I hadn't thought of that. I wonder if you would get any anomalous sounds (or absence of sound) when one stopped and the next began, like a popping or moment of silence. In the openpod and hal sound files there is a very noticeable background nice throughout the whole recording that was in the movie. Anyway, here is the file I got with the sound demo that has periods for the different files, some of which I don't have: 1. Hal (350) 2. Paul (350) 3. Spock (355) 4. Starwars (415) 5. War (375) 6. 2010 (400) 7. Bond (375) 8. Empire (400) 9. Openpod (350) 10. Raiders (375) 11. Startrek(415) As you can see hal and openpod share the same period, I tried to con- catenate and play them with startrek and spock and it didn't sound very good because of the disparity of sampling periods. But the program could be modified to let each section have its own period I suppose.