- From: Chris Marrin <cmarrin@apple.com>
- Date: Tue, 15 Jun 2010 16:09:55 -0700
- To: robert@ocallahan.org
- Cc: Chris Grigg <chris@chrisgrigg.org>, public-xg-audio@w3.org
On Jun 15, 2010, at 1:49 PM, Robert O'Callahan wrote: > On Wed, Jun 16, 2010 at 8:22 AM, Chris Grigg <chris@chrisgrigg.org> wrote: > Further to my comment on the separate "Target platforms?" thread, on what range of target platforms did you find the performance to be equivalent? Are there any of our target platforms that are not capable of realtime performance with that FFT implementation? I would worry about very skinny clients not only for FFT but for any compute intensive operations. > > Vlad's tests were on a desktop machine. We should do experiments on a mobile device and report back. However, I see no fundamental reason why the observed closeness in performance between JS and C would be unattainable in lower-end devices. Our ARM backend is less mature but that will improve. This makes the presumption that C performance would be sufficient. I think it's important we take into consideration audio hardware, especially GPU based audio processing. A design like Chris' accommodates hardware implementation while a direct JavaScript implementation does not. ----- ~Chris cmarrin@apple.com
Received on Tuesday, 15 June 2010 23:11:00 UTC