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Re: [fluid-dev] qsynth 0.3.6 for mac osx

From: Pedro Lopez-Cabanillas
Subject: Re: [fluid-dev] qsynth 0.3.6 for mac osx
Date: Sat, 16 Apr 2011 00:53:10 +0200
User-agent: KMail/1.13.5 (Linux/; KDE/4.4.4; i686; ; )

On Thursday 14 April 2011, Ebrahim Mayat wrote:
> What happens when you try and render a MIDI file using FluidSynth ? (I  

I can't reproduce your problem when rendering MIDI files in my Mac. But again, 
I don't have access to any other Mac except my own. I suggest you to try some 
things, after getting the latest FS from the Subversion repository:

* First, configure it with debug enabled:
$ cmake .. -Denable-debug=yes
This will provide more output, which may provide some clues. Another setting 
that you may want to try is 

* When running FluidSynth, use the arguments -c and -z to provide larger buffer 
sizes, and play also with the -r argument trying to match the native sample 
rate of your audio device, or another. For instance, this is the output in my 
system when rendering your MIDI file:

$ fluidsynth -c 4 -z 1024 -r 48000 GeneralUser_GS_FluidSynth_v1.43.sf2 ROCK.MID 
FluidSynth version 1.1.3
Copyright (C) 2000-2010 Peter Hanappe and others.
Distributed under the LGPL license.
SoundFont(R) is a registered trademark of E-mu Systems, Inc.

fluidsynth: debug: Using 'coreaudio' audio driver
fluidsynth: debug: mSampleRate 48000
fluidsynth: debug: mFormatFlags 00000001
fluidsynth: debug: mBytesPerPacket 8
fluidsynth: debug: mFramesPerPacket 1
fluidsynth: debug: mChannelsPerFrame 2
fluidsynth: debug: mBytesPerFrame 8
fluidsynth: debug: mBitsPerChannel 32
fluidsynth: debug: MaximumFramesPerSlice = 4096
fluidsynth: debug: Using 'coremidi' midi driver
Type 'help' for help topics.

> fluidsynth: debug: fluidsynth-svn/src/midi/fluid_midi.c: 1443: Loading 
> midifile ROCK.MID
fluidsynth: debug: File load: Allocating 5156 bytes
fluidsynth: debug: Division=384
fluidsynth: debug: tempo=480000, tick time=1.250000 msec, cur time=0 msec, cur 
fluidsynth: debug: signature=4/4, metronome=24, 32nd-notes=8
fluidsynth: debug: tempo=500000, tick time=1.302083 msec, cur time=0 msec, cur 


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