ok, interesting ! Do you know how much CPU it takes for a real time encoding/decoding ? it's more around 20% or 80% instead ? Do you know if it works for 44100 Hz / 32kbps / Quality =8 ? thanks again. Vincent ----- Original Message ----- From: "Ashhar Farhan" <farhan at phonestack.com> To: "Vincent Burel" <vincent.burel at vb-audio.com> Cc: <speex-dev at xiph.org> Sent: Wednesday, November 12, 2008 3:05 AM Subject: Re: [Speex-dev] SPEEX on iPhone ?> vincent, > it should work out of the box. real time speex should work on the > iphone as it has a really fast arm cpu (and speex works in realtime on > even the 201mhz arm cpus). > while compiling, remember to define the fixed-support support and you > are all set. narrow band (8khz) and 8kbps bitrate will work very well. > while you are at it, pse send the xcode project file to include in thetarball.> - farhan > > On 11/10/08, Vincent Burel <vincent.burel at vb-audio.com> wrote: > > Hello Ashhar, > > > > thanks for your reply, but i'm a bit surprised. > > > > 1- Does it mean that it is possible to make a Real TimeEncoding/Decoding> > with SPEEX on iPhone ? > > > > 2- What parameters have been used (QUALITY, SAMPLING_RATE, BITRATE) ?and> > what kind of CPU load do they measure for that ? > > > > Thanks by advance, > > Vincent
Vincent Burel a ?crit :> ok, interesting ! > Do you know how much CPU it takes for a real time encoding/decoding ? it's > more around 20% or 80% instead ? > Do you know if it works for 44100 Hz / 32kbps / Quality =8 ?Did I ever mention that 44.1kHz is *not* recommended. Usually, 16 kHz is best, although 32 kHz can be good in *some* cases. In any case, you'll need to listen to the result before deciding. I just want to make it clear that higher is not necessarily better. Jean-Marc> thanks again. > Vincent > > ----- Original Message ----- > From: "Ashhar Farhan" <farhan at phonestack.com> > To: "Vincent Burel" <vincent.burel at vb-audio.com> > Cc: <speex-dev at xiph.org> > Sent: Wednesday, November 12, 2008 3:05 AM > Subject: Re: [Speex-dev] SPEEX on iPhone ? > > >> vincent, >> it should work out of the box. real time speex should work on the >> iphone as it has a really fast arm cpu (and speex works in realtime on >> even the 201mhz arm cpus). >> while compiling, remember to define the fixed-support support and you >> are all set. narrow band (8khz) and 8kbps bitrate will work very well. >> while you are at it, pse send the xcode project file to include in the > tarball. >> - farhan >> >> On 11/10/08, Vincent Burel <vincent.burel at vb-audio.com> wrote: >>> Hello Ashhar, >>> >>> thanks for your reply, but i'm a bit surprised. >>> >>> 1- Does it mean that it is possible to make a Real Time > Encoding/Decoding >>> with SPEEX on iPhone ? >>> >>> 2- What parameters have been used (QUALITY, SAMPLING_RATE, BITRATE) ? > and >>> what kind of CPU load do they measure for that ? >>> >>> Thanks by advance, >>> Vincent > > _______________________________________________ > Speex-dev mailing list > Speex-dev at xiph.org > http://lists.xiph.org/mailman/listinfo/speex-dev > >
thanks for your reply, could you explain why 44.1kHz is *not* recommended with SPEEX ? Vincent ----- Original Message ----- From: "Jean-Marc Valin" <jean-marc.valin at usherbrooke.ca> To: "Vincent Burel" <vincent.burel at vb-audio.com> Cc: "Ashhar Farhan" <farhan at phonestack.com>; <speex-dev at xiph.org> Sent: Wednesday, November 12, 2008 1:27 PM Subject: Re: [Speex-dev] SPEEX on iPhone ?> Vincent Burel a ?crit : > > ok, interesting ! > > Do you know how much CPU it takes for a real time encoding/decoding ?it's> > more around 20% or 80% instead ? > > Do you know if it works for 44100 Hz / 32kbps / Quality =8 ? > > Did I ever mention that 44.1kHz is *not* recommended. Usually, 16 kHz is > best, although 32 kHz can be good in *some* cases. In any case, you'll > need to listen to the result before deciding. I just want to make it > clear that higher is not necessarily better. > > Jean-Marc