Re: Hiss Effect
Re: Hiss Effect
- Subject: Re: Hiss Effect
- From: Gregory Wieber <email@hidden>
- Date: Tue, 17 May 2011 16:39:15 -0700
One thing I did leave out is that processor usage is also more of a concern on mobile devices, and algorithmic / generative approaches might be more processor intensive than playing an audio file -- I really don't know in this particular situation. Deciding which route to take would probably require weighing the two...
On Tue, May 17, 2011 at 4:36 PM, Gregory Wieber
<email@hidden> wrote:
That's a cool approach too, but IMOHO nearly half a megabyte is not trivial for mobile devices. Our polychord app is 4.5MB. 440K is roughly a 10th of that, just for hiss clips. If you want any control over the frequency of the pops and texture, wouldn't that increase the number of samples you need?
Artemiy's approach is pretty concise, and I'm not convinced that coding a solution for cross fading is going to be easier. Let's also suppose that the original poster wants to overlay this effect on top of samples -- ram then becomes an issue as well, and again, while 440k is not a lot, it can add up.
On Tue, May 17, 2011 at 4:27 PM, John Clements
<email@hidden> wrote:
On May 17, 2011, at 4:11 PM, Gregory Wieber wrote:
> Wouldn't one reason be that something algorithmically generated will sound more realistic than a looped audio file? Especially since he's aiming for a mobile device where the sample length should probably be kept short?
I really doubt it. Take 20 half-second samples of hiss, pull down the volume in the first and last 1/10 of a second for cross-fade, then play them in random order with overlap of 1/10 of a second. You'll get good spectrum for free, and you're looking at 440K of data total.
No?
John Clements
`
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list (
email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to
email@hidden
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden