Read and respond to this message at: https://sourceforge.net/forum/message.php?msg_id=5192173 By: stretchtiberius
>>What kind of results are getting, i.e. "not very accurate"? >I've made some progress with this since my last post. Right now it seems that the majority of the frequencies are just under >double what they should be. >i.e. Input at 440Hz is output at 877.8225314292689Hz >Input at 523.25Hz is output at 1045.2825582814598Hz >I have yet to test a larger range of frequencies. >Could this be Aliasing (again I'm new to this)? Something interesting here is that the 438.91126571463445Hz is also registering just at a lesser amplitude. I guess the first overtone is stronger on my recording. The recording is actually me playing a soprano saxophone into my computer microphone. I used a tuner to make sure it was right on pitch. Here are the top 10 results from this experiment on a soprano sax playing A 440Hz. 1653.3783977981452 @ index 1798 Frequency = 877.8225314292689 Hz 1122.1303664160816 @ index 1799 Frequency = 878.3107530818992 Hz 1024.0565274509938 @ index 899 Frequency = 438.91126571463445 Hz 372.5350991981543 @ index 1797 Frequency = 877.3343097766386 Hz 372.5350991981543 @ index 1797 Frequency = 877.3343097766386 Hz 287.6803161169527 @ index 1800 Frequency = 878.7989747345295 Hz 252.98917162807265@ index 2697 Frequency = 1316.7337971439033 Hz 219.22603277261533@ index 2698 Frequency = 1317.2220187965336 Hz 159.85865239224793 @ index 3597 Frequency = 1756.133284511168 Hz 147.68668321697962 @ index 3596 Frequency = 1755.6450628585378 Hz ______________________________________________________________________ You are receiving this email because you elected to monitor this forum. To stop monitoring this forum, login to SourceForge.net and visit: https://sourceforge.net/forum/unmonitor.php?forum_id=213052 ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ marf-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/marf-devel
