4 Episodes
Using White Noise to Test Audio Filters
White noise will contain all frequencies. By applying filters to white noise and viewing the resulting spectrum the effects can be viewed. Here we see the test signal generator producing white noise on 2 channels and the resulting spectrum. The high pass filter is applied to the signal and the resulting spectrum with low frequencies […] The post Using White Noise to Test Audio Filters appeared first on Sound Analysis.
The power of profiling
A particularly ugly sound from the synthesizer was used to test profiling. The following profile was produced. This shows a lot of overtones, one louder than the base note, others almost as loud. The notes played were CDEF. In polyphonic mode with no profiling the score transcribed shows that most of the overtones are interpreted […] The post The power of profiling appeared first on Sound Analysis.
Testing Sustain Compensation
A voice with a long sustain was used to test the sustain compensation feature. Notes played were ECDE. Without sustain compensation we can see that each note carried over to the next. With sustain compensation enabled the notes played were accurately scored. Drilling down to take a closer look at the second note C: The […] The post Testing Sustain Compensation appeared first on Sound Analysis.
Testing the Musician’s Workbench
Sound Analysis recognizes that in order to obtain the best possible accuracy extensive algorithm testing is essential. To this end each pipeline component was rigorously tested using voices that were selected to stress that particular component. The synthesizer selected to generate the tests was an M-Audio Venom http://www.m-audio.com/products/en_us/Venom.html . This was selected as it has […] The post Testing the Musician’s Workbench appeared first on Sound Analysis.