Re: [Alsa-devel] Re: MTP-AV problems (Re: intel8x0 sequencer MTP-AV) - success
Hi Takashi At this stage till I get the cvs version of ALSA I have no further information. I did only notice at the start of using the sequencer.. once it happened once it didn't happen again. However, Ryan Pavlik has also seen this behaviour and may be able to tell you a little more. cheers Allan On Mon, 2003-02-17 at 21:56, Takashi Iwai wrote: At 16 Feb 2003 20:58:23 +1100, Allan Klinbail wrote: One glitch I noticed was that the driver seemed to send the note information to all ports when the sequence I had only sent to one of the MTPAV ports... When I assigned a second to a different port it began behaving correctly. i'm not sure whether the driver bug or what else. i guess the hardware port is initialized to 0 (or it IS as default), which corresponds to the broadcast. this may happen even if a message F5 00 is sent by an application. so, we'll need to trace all F5 xx messages. does this broadcast behavior appear at the first start only? Takashi --- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
Re: [Alsa-devel] Re: MTP-AV problems (Re: intel8x0 sequencer MTP-AV) - success
On 16 Feb 2003 20:58:23 +1100 Allan Klinbail [EMAIL PROTECTED] wrote: Okay Finally I am very very happy.. SO far I have only been able to test output (need to setup MIDI hardware again after a gig) From output using MusE CVS version. I need to try this, is it much different than the 0.6.x prerelease? I've had a few issues with that ... I have been able to send MIDI output to: individual ports multiple ports relaying different information... timecode... MIDI CLOCK, worked , MMC still to be tested Yeah after poking around same here... when it works. Seems to rely on JACK (which I don't care for) or else it won't play back, but I was happy to see a steady MIDI clock delivered (I was having trouble with one of my synths that way). I did not get a good SMPTE lock and the time display on the MTP-AV only aligned itself properly on stop.. (typical when a sync lock isn't established properly) both the PC and the MTP-AV were set to a SMTPE rate of 25 frames per second. I'm not sure how SMPTE is delivered, it's been awhile since I looked at that end of MIDI, but perhaps not all the right messages are being delivered. What I really wish is that the MTPAV itself would generate MIDI clocks and timecode; I'm pretty sure it's supposed to do the latter. snip One glitch I noticed was that the driver seemed to send the note information to all ports when the sequence I had only sent to one of the MTPAV ports... When I assigned a second to a different port it began behaving correctly. This is the main reason I replied... I've seen this behavior too. I haven't had time to investigate, but it seems to happen in various sequencers from time to time (seq24, MusE, pmidi, etc.), and I'm not completely sure of the cause. Usually it starts out fine for me, but I'll do something odd and suddenly all output is broadcast. I'm having suspicions, but do you remember any detailed circumstances regarding this when you've seen it? This is all however fantastic progress. Yeah, I've had all this stuff for years and I'm completely hyped to finally be able to put it to use. Kudos to the ALSA developers (and the sequencer authors ;) for all the time they've spent. -- Ryan Pavlik [EMAIL PROTECTED] Why are we even *mentioning* semi-regular polyhedrons and real space? - 8BT --- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
Re: [Alsa-devel] Re: MTP-AV problems (Re: intel8x0 sequencer MTP-AV) - success
On Mon, 2003-02-17 at 08:06, Ryan Pavlik wrote: On 16 Feb 2003 20:58:23 +1100 Allan Klinbail [EMAIL PROTECTED] wrote: Hi Ryan (hope you don't mind all the cutting otherwise it just gets too hard to read) One glitch I noticed was that the driver seemed to send the note information to all ports when the sequence I had only sent to one of the MTPAV ports... When I assigned a second to a different port it began behaving correctly. This is the main reason I replied... I've seen this behavior too. I haven't had time to investigate, but it seems to happen in various sequencers from time to time (seq24, MusE, pmidi, etc.), and I'm not completely sure of the cause. Usually it starts out fine for me, but I'll do something odd and suddenly all output is broadcast. I'm having suspicions, but do you remember any detailed circumstances regarding this when you've seen it? Unfortunately, I have not had enough chance to test this except that I noticed it was happening when only one MIDI Port had been assigned and only before a second port was assigned , but it seemed to move smoothly after this. .. .. today was supposed to be the day but I can't even install alsa properly today (gg help somebody see my last post) If you are saying that you are seeing this in multiple softwares it probably is a driver issue that needs to be investigated further... I'll keep my eyes wide open when I'm up and running again. I need to try this, is it much different than the 0.6.x prerelease? I've had a few issues with that ... I've only been using CVS releases until today (I'm having trouble compiling see other notes, don't know why though). I'm downloading that version now to see what happens.. but I was under the impression the mtpav code had only just been cleaned up in CVS. Yeah after poking around same here... when it works. Seems to rely on JACK (which I don't care for) or else it won't play back, but I was happy to see a steady MIDI clock delivered (I was having trouble with one of my synths that way). With the version I used yesterday I was using a version of MusE without Jack. MIDI clock was streaming fine. I did not get a good SMPTE lock and the time display on the MTP-AV only aligned itself properly on stop.. (typical when a sync lock isn't established properly) both the PC and the MTP-AV were set to a SMTPE rate of 25 frames per second. I'm not sure how SMPTE is delivered, it's been awhile since I looked at that end of MIDI, but perhaps not all the right messages are being delivered. What I really wish is that the MTPAV itself would generate MIDI clocks and timecode; I'm pretty sure it's supposed to do the latter. I've had to experiment without having a manual (MOTU won't put up a pdf on the web and want a change of ownership kind of certificate thing), I had mine shipped over from the US second hand, I don't even have the details of the guy I bought it from. As far as I understand it should generate SMTPE timecode from video sync, I don't know if it's possible for it to happen from MIDI clock. I can only get sync happening when it is set on Internal and the computer is sending sync... However, in my dim memory I'm sure I've seen it get a good lock from some little test apps Takashi developed to test it and also some RTC kernel patches (although they seem to have stopped at 2.4.20) ... As I couldn't get multiple ports working I've been using the box in standalone mode with a single port from another card being the interface to the PC that is until now... cheers Allan snip This is all however fantastic progress. Yeah, I've had all this stuff for years and I'm completely hyped to finally be able to put it to use. Kudos to the ALSA developers (and the sequencer authors ;) for all the time they've spent. -- Ryan Pavlik [EMAIL PROTECTED] Why are we even *mentioning* semi-regular polyhedrons and real space? - 8BT --- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel --- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
Re: [Alsa-devel] Re: MTP-AV problems (Re: intel8x0 sequencer MTP-AV) - success
On 17 Feb 2003 16:00:27 +1100 Allan Klinbail [EMAIL PROTECTED] wrote: snip Hi Ryan (hope you don't mind all the cutting otherwise it just gets too hard to read) Nope, cutting is good. ;) snip If you are saying that you are seeing this in multiple softwares it probably is a driver issue that needs to be investigated further... I'll keep my eyes wide open when I'm up and running again. Yeah, I'm pretty sure it's the driver, but I'm not sure what it's from. I have a hunch it may be how broadcast is handled, but I haven't investigated. Other possibilities are odd MIDI causing the mtpav to broadcast, or just plain old bugs. snip I've only been using CVS releases until today (I'm having trouble compiling see other notes, don't know why though). I'm downloading that version now to see what happens.. but I was under the impression the mtpav code had only just been cleaned up in CVS. Actually, I meant the MusE CVS version as opposed to muse 0.6.0pre something. I'll check it out anyhow. I've only been using ALSA CVS as well, mostly due to the fact I want to fix the mtpav stuff where possible. snip With the version I used yesterday I was using a version of MusE without Jack. MIDI clock was streaming fine. Hmm, cool, I'll have to give it another try. I also would like to get the rtctimer module working in the latest 2.4 kernel, as this is supposed to alleviate latency problems with an irregular clock. Some changes in the kernel's rtc seem to have similar modifications, so I haven't gone through and seen what's what yet. I've had to experiment without having a manual (MOTU won't put up a pdf on the web and want a change of ownership kind of certificate thing), I had mine shipped over from the US second hand, I don't even have the details of the guy I bought it from. Silly Motu. IP antics are for the RIAA/MPAA. I'd like to know what they expect when someone wants documentation... you made a copy of the hardware? Or you're considering buying it? Or maybe you want to write software so it's more useful and perhaps others purchase it? I just wish Midiman made something like the mtpav. They seem to be great about open specs. As far as I understand it should generate SMTPE timecode from video sync, I don't know if it's possible for it to happen from MIDI clock. I can only get sync happening when it is set on Internal and the computer is sending sync... Hmm... I don't have any video gear to play with. :( ;) However, in my dim memory I'm sure I've seen it get a good lock from some little test apps Takashi developed to test it and also some RTC kernel patches (although they seem to have stopped at 2.4.20) ... As I couldn't get multiple ports working I've been using the box in standalone mode with a single port from another card being the interface to the PC that is until now... snip Cool. Good luck, I'll keep checking on progress. -- Ryan Pavlik [EMAIL PROTECTED] Why are we even *mentioning* semi-regular polyhedrons and real space? - 8BT --- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
