On Thursday 03 February 2011, jimmy wrote: > I'm trying to make a soundfont from a single audio sample (somewhere between > octave C3-C4). The sample is about 4 seconds. So it is set to the whole > range of notes (0-127). > > What happens is the lower octave notes seems to lose some volume. > > More problematic are the upper octave notes, they sounded so short (1-2 > seconds, or less). It may sound OK for short-duration sounds like like > piano, xylophone, but for synth strings, sawWave, squareWave, pads... It > also sounds much less like the original sound.
For instruments with long sustain, like for instance flutes or strings, the usual practice is to define a loop in the central part of the samples when defining the SoundFont. This loop will be played continuously by a synth until a note off event triggers the release part of the envelope. Some pointers that you may find useful: http://en.wikipedia.org/wiki/Synthesizer#ADSR_envelope http://www.creative.com/soundblaster/soundfont/tutorials/welcome.asp?articleid=54142&page=3 Regards, Pedro _______________________________________________ fluid-dev mailing list fluid-dev@nongnu.org http://lists.nongnu.org/mailman/listinfo/fluid-dev
