Hi Ge, We met at SLEO. I'm using the newest chuck version: 1.3.1.2 (chimera) mac os x : intel : 64-bit. Re: FM sound Yes I recall reading a forum message that FM was an abstract class. Maybe a simple output message could inform users they need to subclass FM. Re: Brass sound I recorded and attached a small example of the Brass sound I get (BrassTest.mp3). To my ears it sounds distorted. (chuck code at end of email). Re: Mandolin ChucK plays correctly and seg faults when finished. This happens consistently on my MacPro. Here's a portion of the crash log. ============================================================= Process: chuck [739] Path: /usr/local/bin/chuck Identifier: chuck Version: ??? (???) Code Type: X86-64 (Native) Parent Process: bash [645] Date/Time: 2012-09-16 16:41:55.256 -0500 OS Version: Mac OS X 10.7.4 (11E53) Report Version: 9 Interval Since Last Report: 103887 sec Crashes Since Last Report: 29 Per-App Crashes Since Last Report: 4 Anonymous UUID: ABA8BB91-CFBC-40A1-BD37-C0F836D908F5 Crashed Thread: 4 com.apple.audio.IOThread.client Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: 0x000000000000000d, 0x0000000000000000 VM Regions Near 0: --> __TEXT 0000000100000000-00000001001b1000 [ 1732K] r-x/rwx SM=COW /usr/local/bin/chuck Application Specific Information: objc[739]: garbage collection is OFF Thread 0:: Dispatch queue: com.apple.main-thread 0 libsystem_kernel.dylib 0x00007fff85020e42 __semwait_signal + 10 1 libsystem_c.dylib 0x00007fff86869dea nanosleep + 164 2 libsystem_c.dylib 0x00007fff86869bb5 usleep + 53 3 chuck 0x0000000100045fca Chuck_VM::run() + 426 4 chuck 0x00000001000990ac main + 10924 5 chuck 0x00000001000017bd _start + 203 6 chuck 0x00000001000016f1 start + 33 Thread 1:: Dispatch queue: com.apple.libdispatch-manager 0 libsystem_kernel.dylib 0x00007fff850217e6 kevent + 10 1 libdispatch.dylib 0x00007fff8667f78a _dispatch_mgr_invoke + 923 2 libdispatch.dylib 0x00007fff8667e31a _dispatch_mgr_thread + 54 Thread 2: 0 libsystem_kernel.dylib 0x00007fff85020e42 __semwait_signal + 10 1 libsystem_c.dylib 0x00007fff86869dea nanosleep + 164 2 libsystem_c.dylib 0x00007fff86869bb5 usleep + 53 3 chuck 0x0000000100120dc1 _ZL7kb_loopPv + 113 4 libsystem_c.dylib 0x00007fff868b38bf _pthread_start + 335 5 libsystem_c.dylib 0x00007fff868b6b75 thread_start + 13 Thread 3: 0 libsystem_kernel.dylib 0x00007fff8502047a __accept + 10 1 chuck 0x0000000100040982 ck_accept + 66 2 chuck 0x000000010009b252 otf_cb(void*) + 530 3 libsystem_c.dylib 0x00007fff868b38bf _pthread_start + 335 4 libsystem_c.dylib 0x00007fff868b6b75 thread_start + 13 Thread 4 Crashed:: com.apple.audio.IOThread.client 0 chuck 0x00000001000f2858 Mandolin::~Mandolin() + 56 1 chuck 0x00000001000d8813 Mandolin_dtor + 35 2 chuck 0x0000000100082244 Chuck_Object::~Chuck_Object() + 132 3 chuck 0x0000000100093be1 Chuck_UGen::~Chuck_UGen() + 33 4 chuck 0x00000001000491dd Chuck_VM_Shred::shutdown() + 317 5 chuck 0x0000000100048ee3 Chuck_VM_Shred::~Chuck_VM_Shred() + 35 6 chuck 0x0000000100048e8f Chuck_VM_Shred::~Chuck_VM_Shred() + 15 7 chuck 0x00000001000461be Chuck_VM::compute() + 206 8 chuck 0x0000000100046034 Chuck_VM::run(long) + 84 9 chuck 0x00000001000ac842 Digitalio::cb2(void*, void*, unsigned int, double, unsigned int, void*) + 434 10 chuck 0x00000001000b7316 RtApiCore::callbackEvent(unsigned int, AudioBufferList const*, AudioBufferList const*) + 358 11 chuck 0x00000001000b7197 callbackHandler(unsigned int, AudioTimeStamp const*, AudioBufferList const*, AudioTimeStamp const*, AudioBufferList*, AudioTimeStamp const*, void*) + 23 12 com.apple.audio.CoreAudio 0x00007fff82ca59fa HALC_ProxyIOContext::IOWorkLoop() + 2058 13 com.apple.audio.CoreAudio 0x00007fff82ca5151 HALC_ProxyIOContext::IOThreadEntry(void*) + 73 14 com.apple.audio.CoreAudio 0x00007fff82ca500c HALB_IOThread::Entry(void*) + 78 15 libsystem_c.dylib 0x00007fff868b38bf _pthread_start + 335 16 libsystem_c.dylib 0x00007fff868b6b75 thread_start + 13 ============================================================= // Twinkle code with record function Brass inst => dac => Gain g => WvOut w => blackhole; "BrassTest.wav" => w.wavFilename; 0.5 => g.gain; // Melody, Number Of Beats [ [67.0, 1.0], [67.0, 1.0], [74.0, 1.0], [74.0, 1.0], [76.0, 1.0], [76.0, 1.0], [74.0, 2.0], [72.0, 1.5], [72.0, 0.5], [71.0, 1.5], [71.0, 0.5], [69.0, 1.5], [69.0, 0.5], [67.0, 2.0] ] @=> float tune[][]; 0 => int transpose; 120 => int tempo; // Play phrase 1 for( 0 => int i; i < tune.cap(); i++) { Std.mtof( tune[i][0] + transpose ) => inst.freq; inst.noteOn(1.0); 60000::ms * tune[i][1] / tempo => now; inst.noteOff(0); } w.closeFile; John John Ellinger email: info@mibac.com MiBAC Music Software 1019 College St. Music Instruction By A Computer Northfield MN 55057 http://www.mibac.com