Re: [linux-audio-dev] Spinboxes

2004-06-21 Thread Jens M Andreasen
On sön, 2004-06-20 at 18:16, Thorsten Wilms wrote: I think the variations with arrows are less pleasant to look at. Using - and + also avoids confusion with option menus. But I would like to hear everyone's opinion on that. How about sideway fwd/back arrows. The sideway movement of the bar

Re: [linux-audio-dev] Spinboxes

2004-06-21 Thread Thorsten Wilms
On Mon, Jun 21, 2004 at 01:53:55AM -0400, Pete Bessman wrote: I think you are *really* on to something here. :) I definitely think these are a major improvement over spinbuttons as far as audio apps are concerned. My only question is if they're superior to traditional knobs/sliders. I

Re: [linux-audio-dev] Spinboxes

2004-06-21 Thread Thorsten Wilms
On Mon, Jun 21, 2004 at 08:48:07AM +0200, Jens M Andreasen wrote: How about sideway fwd/back arrows. The sideway movement of the bar indicates something like that ||| Right. Would make more sense in combination with bar display. The reason for using down/up is of course it's more clear

Re: [linux-audio-dev] pitch-shift library

2004-06-21 Thread Alex Marandon
On Thu, Jun 17, 2004 at 07:15:55PM -0700, Florin Andrei wrote: Anyone knows a library (or an algorithm or something) for CPU efficient pitch-shifting? Maybe you should have a look at SoundTouch : http://sky.prohosting.com/oparviai/soundtouch/

[linux-audio-dev] Re: lock-free data structures

2004-06-21 Thread Juhana Sadeharju
From: Tim Hockin [EMAIL PROTECTED] Quick question: disk thread may suspend if there are no disk use. How the disk thread is woken up to read the lock-free buffer? Semaphore. Every time you put something into the buffer, up() the So, one thread for RT-audio, one thread to watch and suspend on

Re: [linux-audio-dev] Spinboxes

2004-06-21 Thread Jens M Andreasen
On mån, 2004-06-21 at 09:40, Thorsten Wilms wrote: On Mon, Jun 21, 2004 at 08:48:07AM +0200, Jens M Andreasen wrote: How about sideway fwd/back arrows. The sideway movement of the bar indicates something like that ||| Right. Would make more sense in combination with bar display.

Re: [linux-audio-dev] Re: lock-free data structures

2004-06-21 Thread Benno Senoner
Juhana Sadeharju wrote: From: Tim Hockin [EMAIL PROTECTED] Quick question: disk thread may suspend if there are no disk use. How the disk thread is woken up to read the lock-free buffer? Semaphore. Every time you put something into the buffer, up() the How this all is done in

Re: [linux-audio-dev] [jack] frame_time of first frame in proces buffer?

2004-06-21 Thread Florian Schmidt
On Sun, 20 Jun 2004 23:24:34 -0400 Paul Davis [EMAIL PROTECTED] wrote: I wonder how to find out which frame_time corresponds to the first frame in th e buffer passed to the process callback.. Is it possible at all? does jack use an internal frame counter which correspon ds to

Re: [linux-audio-dev] Re: lock-free data structures

2004-06-21 Thread Paul Davis
How this all is done in Ardour? I browsed the source but there are a lot of stuff there. How about LinuxSampler? We use a very simple approach in LinuxSampler: in the disk thread if all Ardour also uses a simple mechanism, but the overall result is a bit more complex. Basically, the

[linux-audio-dev] davis is a doofus head

2004-06-21 Thread Paul Davis
forget all that ranting i made about jack_frames_since_cycle_start(). jack_frame_time() is an interpolated function that can be safely called from any thread (its not RT-safe, but it is fast), and will return a monotonically increasing frame counter. i wrote it. --p

Re: [linux-audio-dev] [jack] frame_time of first frame in proces buffer?

2004-06-21 Thread Paul Davis
well, basically the idea is to write a simple drum softsynth.. a playing groun d for me to try out different synthesis approaches. for the start it will be a simple substractive synthesis.. many softsynths just schedule the audio events for the start of the next perio d which introduces jitter

Re: [linux-audio-dev] Spinboxes

2004-06-21 Thread Juan Linietsky
On Sunday 20 June 2004 13:16, Thorsten Wilms wrote: Hi! The usual spinboxes with their tiny up/down arrow buttons made me think about an alternative. Since using more height than a textfield has would make layout very troublesome, my solution is placing the buttons horizontaly. I

[linux-audio-dev] Audio over Ethernet / Livewire

2004-06-21 Thread Frank van de Pol
While surfing the web I came across an interesting paper regarding Audio over Ethernet in low-latency low-jitter professional studio environments. I don't know to what extent the proposed scheme is open or patented or whatsoever.

Re: [linux-audio-dev] Audio over Ethernet / Livewire

2004-06-21 Thread Eliot Blennerhassett
On Tue, 22 Jun 2004 09:25, Frank van de Pol wrote: While surfing the web I came across an interesting paper regarding Audio over Ethernet in low-latency low-jitter professional studio environments. I don't know to what extent the proposed scheme is open or patented or whatsoever.