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- Path: sparky!uunet!ukma!netsys!agate!agate!usenet
- From: bfoley@obelisk.berkeley.edu (Brian Foley)
- Newsgroups: comp.sys.mac.programmer
- Subject: More Sound Manager Questions
- Date: 18 Nov 1992 21:50:21 GMT
- Organization: University of California, Berkeley
- Lines: 30
- Message-ID: <1eedqtINN9jb@agate.berkeley.edu>
- NNTP-Posting-Host: obelisk.berkeley.edu
-
-
- Well, my program is almost finished except for a few lingering bugs that I have
- not had time to track down. I was hoping that I could get people on the net to
- do some of my work for me, so here goes:
-
- - I want to be able to play several tones simultaneously. Currently I do
- this with multiple wavetable channels, but this limits me to 4 tones. Is there
- another way to do this with more tones (CPU use is not an issue but waiting to
- calculate the sampled data is)?
-
- - I am using the waveTable synthesizer to play simple tones (see above). I
- set up the wave table as a sine wave, then I send a ampCmd and a freqCmd
- (followed later by a quietCmd). The frequencies sound fine, but I dont have
- any control over the amplitude - it always plays the max. Calling getAmpCmd
- returns 0.
- What am I doing wrong? (I swear I checked the source code!)
-
- - Can a Mac LCII play sounds higher than 11 kHz? If not are there boards
- available that can?
-
- - MIDI frequency values are the log of frequency right? Does anyone know the
- conversion equation offhand? (I remember math...)
-
- Any hints, tips, answers, jokes, flames etc. can be emailed
- (bfoley@obelisk.berkeley.edu) or posted.
-
- Thanks for your help
- brian foley
- UC Berkeley, Science and Mathematics Education Division
-
-