The Mathematical Genius of Auto-Tune

Re:The Mathematical Genius of Auto-Tune by make3 on Monday October 16, 2017 @03:58PM (#15486187)

at the era of deep learning, no one is impressed by their 500 summations of multiply adds, or 1 million multiply adds. A geforce 1080ti does 11.3 TFlops, with a T, that's 11 300 000 000 000 floating point operations per second..

[ Parent | on HN ]

Re:The Mathematical Genius of Auto-Tune by topranks on Monday October 16, 2017 @11:43PM (#15488514)

You should still be impressed with the efficiency.

Just cos you've got enough grunt to do it the dumb way doesn't mean the smarts that produced this are somehow unimpressive.

[ Parent | on HN ]

Re:The Mathematical Genius of Auto-Tune by jdietrich on Monday October 16, 2017 @06:14PM (#15487083)

Audio DSP has become much more sophisticated now that we've got cycles to burn. RX and Melodyne are practically voodoo.

https://www.youtube.com/watch?v=OVD7unKgkYo

https://www.youtube.com/watch?v=9FScFKuXXM0

[ Parent | on HN ]

Re:The Mathematical Genius of Auto-Tune by TheRealPomax on Monday October 16, 2017 @11:18PM (#15488409)

I have no idea how RX6 does some of the stuff I make it do - all I know is that it does it better than I could have asked for.

[ Parent | on HN ]

Re:The Mathematical Genius of Auto-Tune by smelterdemon on Monday October 16, 2017 @05:29PM (#15486768)

In 1996 your processor might be running at 150MHz. Using a standard 44.1kHz sampling rate, that doesn't give you very many cycles to get each sample processed to do this in real time.

[ Parent | on HN ]

Re:The Mathematical Genius of Auto-Tune by hamiltonkibbe on Monday October 16, 2017 @05:33PM (#15486793)

That's fine, but being able to run multiple audio tracks worth of VST plugins in real time on a modest laptop is very likely more valuable to their target market

[ Parent | on HN ]

Re:The Mathematical Genius of Auto-Tune by hamiltonkibbe on Monday October 16, 2017 @05:42PM (#15486862)

You'd be surprised how quickly those 500 multiply-accumulates per autocorrelation point add up... a 128-tap filter * 500MAC/point * 2 channels(stereo) * 192ksps is already at 24+billion FLOPS for a single track...

[ Parent | on HN ]

Re:The Mathematical Genius of Auto-Tune by p0nce on Wednesday October 18, 2017 @10:42AM (#15499515)

CPU usage is even more of a problem that several years ago. Some very well known _compressors_ takes a whole 10% of CPU here. 10 of them and you're not realtime, probably earlier than that.

[ Parent | on HN ]

Re:The Mathematical Genius of Auto-Tune by pocketsquare2 on Monday October 16, 2017 @05:32PM (#15486789)

I'm impressed by a great product. What are you doing with all those FLOPs?

[ Parent | on HN ]

Re:The Mathematical Genius of Auto-Tune by KKKKkkkk1 on Tuesday October 17, 2017 @01:15AM (#15488834)

Put your shmancy geforce on an insect-sized mobile robot, and see how far that gets you.

[ Parent | on HN ]

Re:The Mathematical Genius of Auto-Tune by kingkawn on Monday October 16, 2017 @05:15PM (#15486700)

I’m still impressed.

[ Parent | on HN ]