Sirens' Chor - Synth Chorus vs Room Impulse Response Usage & Stats
This one is quite experimental and CPU heavy app!
While working on my Chord Detector app I came up with the idea to play the found harmonics with sine wave oscillators so I can hear what the algorithm is hearing :) It turns out to be an interesting output that led me to creation of this audio effect app.
What happens here is that the input is analysed for main harmonics in the range of 80Hz to 1500Hz. Then a series of sine wave oscillators are set to play those harmonics with the exact frequency and volume and their output is added to create a second voice. This second voice can then be mixed with the input to create some kind of chorus or played alone. All this is CPU heavy process so it should be used with care...
Also to make this effect possible I had to use limited range 80Hz to 1500Hz so it is not suitable for every instrument and you have to keep that range in mind when producing.
Some very fast volume and frequency changes are applied to the oscillators.
The app is AUV3
- Apple App Store
- Paid
- Music
Store Rank
- -
Room Impulse Response measures audio characteristics of a room or loudspeaker.
Start by recording an impulse, such as a handclap or balloon pop, or record a swept sine and use the built-in deconvolution to create your Impulse Response (IR).
Now, view the ETC, with RT60 decay cursors, apply windowing if you wish, or trim the IR.
Next, see these other graphs:
** Impulse, where you can play back the actual IR
** ETC, which includes cursors to read out RT60 times directly, and allows pinch-zoom gesture for trimming the file. Apple a window, and see the effects of the window on the ETC plot.
** Schroeder curve, with EDT, T10, T20, and T30 markers
And then see these charts, all in either in Octave or 1/3 Octave bands:
** T20 or T30 (RT60) times
** Reverb Early Decay Times (EDT)
** Clarity C50
** Clarity C80
** CT times
** Definition
** Signal / Noise
And then you can also do spectral analysis, using our FFT, which can be windowed, for analyzing loudspeaker response without reflections, or see the 3D waterfall plot to view the decay of sound in the room by frequency, over time.
Works great with the internal iOS device microphone, or attach or iTestMic or iAudioInterface2 for fully professional results.
See the other great apps by Studio Six Digital, including AudioTools.
- Apple App Store
- Paid
- Music
Store Rank
- -
Sirens' Chor - Synth Chorus VS. 
Room Impulse ResponseDecember 17, 2024