[mary-users] F0CartTrainer: Long overlooked bug?

[Jerome Perri]

Hello!

In the F0CartTrainer I have seen something strange:

                Datagram[] midDatagrams = waveTimeline.getDatagrams(unitFile.getUnit(mid), unitFile.getSampleRate());
                Datagram[] leftDatagrams = waveTimeline.getDatagrams(unitFile.getUnit(first), unitFile.getSampleRate());
                Datagram[] rightDatagrams = waveTimeline.getDatagrams(unitFile.getUnit(last), unitFile.getSampleRate());
                if (midDatagrams != null && midDatagrams.length > 0
                        && leftDatagrams != null && leftDatagrams.length > 0
                        && rightDatagrams != null && rightDatagrams.length > 0) {
                    float midF0 = waveTimeline.getSampleRate() / (float) midDatagrams[midDatagrams.length/2].getDuration();

waveTimeLine is the file "timeline_waveforms.mry".

In the above one can see that midF0 is calculated by:

float midF0 = waveTimeline.getSampleRate() / (float) midDatagrams[midDatagrams.length/2].getDuration();

The timeline ("waveTimeline" in the upper code) is fed by:

                    /* Feed the datagram to the timeline */
                    waveTimeline.feed( new Datagram(duration, buff.toByteArray()), globSampleRate );

So the wavTimeLine contains an index, a byte pointer and duration.

But it does not contain any F0 values.

Jerome
 		 	   		  
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