[PD] problems testing MIDI clock input
Hi, since now we're removing [midiclkin] (which never worked by the way), I'm testing a MIDI clock input with [midirealtimein]. The idea is to extract the tempo from the clock input, as [midiclkin] would do, but I'm getting a jittered value. I have [midirealtimein] into a [sel 248] and then I'm measuring tempo between bangs with [timer] and I just can't get a steady tempo, [realtime] also doesn't do the trick. Can anyone tell me why this happens? Is it a problem with [midirealtimein]? With the time measuring objects [timer] and [realtime]? Is anybody else testing this and getting a steady measurement? For my test, I'm sending clock from Ableton Live via IAC Driver Bus 1 on a mac cheers ___ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
[PD] problems testing MIDI clock input
I remember some time ago complaining about the jitter in Pd's output timing and someone, maybe Miller, indicated a change I could do to the source to improve the timing, I'm guessing it wasn't something that ever got merged into the source. I forget what it was though. Hi, you can reduce the jitter editing s_midi.c, changing: if (midi_outqueue[midi_outtail].q_time <= midirealtime) to if (1) and if (midi_inqueue[midi_intail].q_time <= logicaltime) to if (1) it works for midi note and ctl, so I think it will works even with MTC -- Nicola Pandini ___ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
Re: [PD] problems testing MIDI clock input
yeah, I'm using 0.48-1test3 2017-12-08 2:37 GMT-02:00 Alexandre Torres Porres : > Hi, since now we're removing [midiclkin] (which never worked by the way), > I'm testing a MIDI clock input with [midirealtimein]. > > The idea is to extract the tempo from the clock input, as [midiclkin] > would do, but I'm getting a jittered value. > > I have [midirealtimein] into a [sel 248] and then I'm measuring tempo > between bangs with [timer] and I just can't get a steady tempo, [realtime] > also doesn't do the trick. > > Can anyone tell me why this happens? Is it a problem with > [midirealtimein]? With the time measuring objects [timer] and [realtime]? > > Is anybody else testing this and getting a steady measurement? > > For my test, I'm sending clock from Ableton Live via IAC Driver Bus 1 on a > mac > > cheers > ___ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
Re: [PD] problems testing MIDI clock input
ableton live is know to have a jittery midi clock, try another master clock. > On 8 Dec 2017, at 05:37, Alexandre Torres Porres wrote: > > Hi, since now we're removing [midiclkin] (which never worked by the way), I'm > testing a MIDI clock input with [midirealtimein]. > > The idea is to extract the tempo from the clock input, as [midiclkin] would > do, but I'm getting a jittered value. > > I have [midirealtimein] into a [sel 248] and then I'm measuring tempo between > bangs with [timer] and I just can't get a steady tempo, [realtime] also > doesn't do the trick. > > Can anyone tell me why this happens? Is it a problem with [midirealtimein]? > With the time measuring objects [timer] and [realtime]? > > Is anybody else testing this and getting a steady measurement? > > For my test, I'm sending clock from Ableton Live via IAC Driver Bus 1 on a mac > > cheers > ___ > Pd-list@lists.iem.at mailing list > UNSUBSCRIBE and account-management -> > https://lists.puredata.info/listinfo/pd-list ___ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
Re: [PD] problems testing MIDI clock input
well, I was first testing it by sending a clock out from Pd with midiout into IAC Driver Bus 1 and then getting it back from the same device into Pd, same jitterness. And I really haven't seen the clock from Live being jittery... so I don't believe that's the problem If you have any setup and a patch that works that I can replicate here I'd like to test and see if I get the same result. cheers 2017-12-08 6:25 GMT-02:00 Simon Iten : > ableton live is know to have a jittery midi clock, try another master > clock. > > > On 8 Dec 2017, at 05:37, Alexandre Torres Porres > wrote: > > > > Hi, since now we're removing [midiclkin] (which never worked by the > way), I'm testing a MIDI clock input with [midirealtimein]. > > > > The idea is to extract the tempo from the clock input, as [midiclkin] > would do, but I'm getting a jittered value. > > > > I have [midirealtimein] into a [sel 248] and then I'm measuring tempo > between bangs with [timer] and I just can't get a steady tempo, [realtime] > also doesn't do the trick. > > > > Can anyone tell me why this happens? Is it a problem with > [midirealtimein]? With the time measuring objects [timer] and [realtime]? > > > > Is anybody else testing this and getting a steady measurement? > > > > For my test, I'm sending clock from Ableton Live via IAC Driver Bus 1 on > a mac > > > > cheers > > ___ > > Pd-list@lists.iem.at mailing list > > UNSUBSCRIBE and account-management -> https://lists.puredata.info/ > listinfo/pd-list > > ___ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
Re: [PD] problems testing MIDI clock input
I remember some time ago complaining about the jitter in Pd's output timing and someone, maybe Miller, indicated a change I could do to the source to improve the timing, I'm guessing it wasn't something that ever got merged into the source. I forget what it was though. I imagine the midi in timing is related? Sorry to be so vague. On Fri, Dec 8, 2017 at 4:56 AM, Alexandre Torres Porres wrote: > well, I was first testing it by sending a clock out from Pd with midiout > into IAC Driver Bus 1 and then getting it back from the same device into > Pd, same jitterness. > > And I really haven't seen the clock from Live being jittery... so I don't > believe that's the problem > > If you have any setup and a patch that works that I can replicate here I'd > like to test and see if I get the same result. > > cheers > > 2017-12-08 6:25 GMT-02:00 Simon Iten : > >> ableton live is know to have a jittery midi clock, try another master >> clock. >> >> > On 8 Dec 2017, at 05:37, Alexandre Torres Porres >> wrote: >> > >> > Hi, since now we're removing [midiclkin] (which never worked by the >> way), I'm testing a MIDI clock input with [midirealtimein]. >> > >> > The idea is to extract the tempo from the clock input, as [midiclkin] >> would do, but I'm getting a jittered value. >> > >> > I have [midirealtimein] into a [sel 248] and then I'm measuring tempo >> between bangs with [timer] and I just can't get a steady tempo, [realtime] >> also doesn't do the trick. >> > >> > Can anyone tell me why this happens? Is it a problem with >> [midirealtimein]? With the time measuring objects [timer] and [realtime]? >> > >> > Is anybody else testing this and getting a steady measurement? >> > >> > For my test, I'm sending clock from Ableton Live via IAC Driver Bus 1 >> on a mac >> > >> > cheers >> > ___ >> > Pd-list@lists.iem.at mailing list >> > UNSUBSCRIBE and account-management -> https://lists.puredata.info/li >> stinfo/pd-list >> >> > > ___ > Pd-list@lists.iem.at mailing list > UNSUBSCRIBE and account-management -> https://lists.puredata.info/ > listinfo/pd-list > > ___ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
