Re: Real Time Audio (SCHED_FIFO)

2007-07-30 Thread Ian Stirling
Brad Midgley wrote: Esben How?. As long as you only transport audio from the microphone to the gsmd, you're screwed without real time transport that isn't the best example since the gsm module is hardwired to the codec which is wired to the mic. This audio path doesn't touch the cpu. As I

Re: Real Time Audio (SCHED_FIFO)

2007-07-29 Thread Brad Midgley
Esben > How?. As long as you only transport audio from the microphone to the > gsmd, you're screwed without real time transport that isn't the best example since the gsm module is hardwired to the codec which is wired to the mic. This audio path doesn't touch the cpu. There are still be some nee

Re: Real Time Audio (SCHED_FIFO)

2007-07-29 Thread Esben Stien
Jeff Rush <[EMAIL PROTECTED]> writes: > Actually it depends on how much mixing you're doing. How?. As long as you only transport audio from the microphone to the gsmd, you're screwed without real time transport. > At the hardware interface they are using ALSA. Yeah, same as pulseaudio, but it

Re: Real Time Audio (SCHED_FIFO)

2007-07-29 Thread Jeff Rush
Esben Stien wrote: > "Brad Midgley" <[EMAIL PROTECTED]> writes: > >> tell us the big picture for what you want to do > > I want to be able to have real time low latency drop out free audio, > which is not possible without jack. > > This is especially crucial for a phone or anything that deals wi

Re: Real Time Audio (SCHED_FIFO)

2007-07-28 Thread Esben Stien
"Brad Midgley" <[EMAIL PROTECTED]> writes: > tell us the big picture for what you want to do I want to be able to have real time low latency drop out free audio, which is not possible without jack. This is especially crucial for a phone or anything that deals with audio;). I've heard now that J

Re: Real Time Audio (SCHED_FIFO)

2007-07-27 Thread Brad Midgley
Esben > Yeah, I know PulseAudio, but that doesn't help interconnecting modules > in a real time fashion. tell us the big picture for what you want to do brad ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/ma

Re: Real Time Audio (SCHED_FIFO)

2007-07-20 Thread Esben Stien
"Brad Midgley" <[EMAIL PROTECTED]> writes: > neo is running pulseaudio which is also an audio server with an > option to use sched_fifo. Yeah, I know PulseAudio, but that doesn't help interconnecting modules in a real time fashion. -- Esben Stien is [EMAIL PROTECTED] s a

Re: Real Time Audio (SCHED_FIFO)

2007-07-19 Thread Brad Midgley
Esben For real time audio work, I use JACK[1] which uses SCHED_FIFO, but is anyone working on porting jack to run on the neo?. neo is running pulseaudio which is also an audio server with an option to use sched_fifo. The option isn't enabled, but it's just a loose end probably. (see /etc/pulse