Timeline for Playing back an audio file at an arbitrary rate with upsampling and downsampling
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 16, 2015 at 0:00 | comment | added | hotpaw2 | The needed cutoff should always be below half the lowest of the two sample rates. So the cutoff frequency can be automatic given those two rates, which thus defines the minimum Sinc function lobe width. | |
| Mar 15, 2015 at 23:26 | comment | added | Alex Miller | I'm using a build-in audio lowpass filter (Apple's AULowPass) with two parameters: cutoff frequency and resonance. I assume that under the hood, it's using a window-ed sinc filter, but I'm not sure. I don't understand what you mean when you say the cutoff frequency is set as needed. You don't have to manually choose a cutoff based on how much you're upsampling/downsampling? | |
| Mar 15, 2015 at 3:45 | history | answered | hotpaw2 | CC BY-SA 3.0 |