fft analysis

Alright lads

I'm just investigating the possibility of using it to identify and and score overtones of certain sounds (e.g. a rich bell sound with lots of partials) in a totally instrumental (i.e. no electronics involved in performance) piece for soprano and ensemble. Ideally i'd like to bypass any study of algorithms etc. and just write the partials down to the nearest 1/4 or 1/8 tone. Does anyone know of some kind of standalone (freeware?) program that can quickly and accurately analyze a sample/ live audio feed and give frequency values for all the overtones? Translating these to pitches should be no problem with the use of a graph or chart of pitch vs frequency.

Cheers

this seems a little over my head, but made me think of SPEAR

http://www.klingbeil.com/spear

any free spectral analysis prog should do this.

try this one. it's pretty accurate

  Adjective said:

this seems a little over my head, but made me think of SPEAR

http://www.klingbeil.com/spear

Jesus christ that program fucking rules! cheers!

  Derelic7 said:

  Adjective said:

this seems a little over my head, but made me think of SPEAR

http://www.klingbeil.com/spear

 

Jesus christ that program fucking rules! cheers!

i second that. hadn't seen this before.

cheers.

  jim said:

Alright lads

 

I'm just investigating the possibility of using it to identify and and score overtones of certain sounds (e.g. a rich bell sound with lots of partials) in a totally instrumental (i.e. no electronics involved in performance) piece for soprano and ensemble. Ideally i'd like to bypass any study of algorithms etc. and just write the partials down to the nearest 1/4 or 1/8 tone. Does anyone know of some kind of standalone (freeware?) program that can quickly and accurately analyze a sample/ live audio feed and give frequency values for all the overtones? Translating these to pitches should be no problem with the use of a graph or chart of pitch vs frequency.

 

Cheers

if you're into programming at all, matlab is fantastic for this shit.

spear is ace but i'm still waiting for the 'morph' button to become active before i really get into it!

I posted SPEAR here months ago! *hands on hips*

Lollygaggers!

  hahathhat said:

if you're into programming at all, matlab is fantastic for this shit.

matlab wails hard, but its sound synthesis engine is extremely basic -it IS really nice to understand fourier transforms and figure out what you can do with them... however, if topic starter is not yet familiar with matlab and its frustratingly convoluted syntax, it won't help him much!

topic starter is looking for this! http://www.fon.hum.uva.nl/praat/ - PRAAT, one of the most sophisticated sound analysis programs you'll find and it's freeware. one step down in quality (but easier to use) is the abovementioned SPEAR. good luck, topic starter, and show us the piece when it is done!

Yes, Praat is good. Bit of a learning curve, but it is fun.