Re: [chuck-users] chuck-users Digest, Vol 137, Issue 1

I guess problem in Cubase. In Ardour (in Debian GNU/Linux) midi data records fine at least. I use Chuck version from Github. 9 декабря 2016 г. 3:09:01 GMT+03:00, chuck-users-request@lists.cs.princeton.edu пишет:

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Today's Topics:

1. Midi time problem (Gonzalo) 2. Re: Midi time problem (Michael Heuer) 3. Re: Midi time problem (Gonzalo) 4. Re: Midi time problem (Gonzalo) 5. Re: Midi time problem (Eugene Martynec)

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От: Gonzalo Кому: chuck-users Отправлено: Fri Dec 09 00:52:51 GMT+03:00 2016 Тема: [chuck-users] Midi time problem

Hi,

I'm using Bruce Murphy's MIDIsender class (http://www.rattus.net/~packrat/audio/ChucK/files/midisender.ck) to generate MIDI from my Chuck code. I'm sending this MIDI to various virtual MIDI ports (using OSX's IAC Driver). Then I have various software instruments in Cubase, each one listening to one of the virtual ports. Works well when I run my Chuck program, but if in Cubase I arm the tracks and try to record the incoming MIDI, all the events get 'collapsed' at the same time, specifically the moment I click record. They do get recorded, but all starting at the same time.

This only happens if I want to record them, if I'm only playing, timing

is fine.

Using MidiMonitor I see that the time for all the MIDI events generated

from Chuck is 0, that seems to be the issue. Any thoughts on how I can change that?

Thanks! Gonzalo

PS: in case anybody is curious, my project's site is here: http://www.whole-play.com

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От: Michael Heuer Кому: ChucK Users Mailing List Отправлено: Fri Dec 09 01:28:09 GMT+03:00 2016 Тема: Re: [chuck-users] Midi time problem

On Thu, Dec 8, 2016 at 3:52 PM, Gonzalo wrote:

...

Hi,

I'm using Bruce Murphy's MIDIsender class (http://www.rattus.net/~packra t/audio/ChucK/files/midisender.ck) to generate MIDI from my Chuck code. I'm sending this MIDI to various virtual MIDI ports (using OSX's IAC Driver). Then I have various software instruments in Cubase, each one listening to one of the virtual ports. Works well when I run my Chuck program, but if in Cubase I arm the tracks and try to record the incoming MIDI, all the events get 'collapsed' at the same time, specifically the moment I click record. They do get recorded, but all starting at the same time.

This only happens if I want to record them, if I'm only playing, timing is fine.

Using MidiMonitor I see that the time for all the MIDI events generated from Chuck is 0, that seems to be the issue. Any thoughts on how I can change that?

MidiMsg is defined as a four byte record

https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.h#L65

but ChucK only sets three bytes on send

https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.cpp#L120

midisender.ck does the same. Is the unset byte supposed to be the time? Suppose I should go read the spec.

It appears time is written and read from files separately

https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.cpp#L823 https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.cpp#L837

Not sure that helps,

michael

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От: Gonzalo Кому: chuck-users@lists.cs.princeton.edu Отправлено: Fri Dec 09 02:11:54 GMT+03:00 2016 Тема: Re: [chuck-users] Midi time problem

Thanks Michael,

This might be a bit over my head, but I'll look into it. Never checked Chuck's source code before, at the very least it'll be fun. :)

Gonzalo

On 08/12/16 23:28, Michael Heuer wrote:

...

On Thu, Dec 8, 2016 at 3:52 PM, Gonzalo mailto:gonzalo@dense13.com> wrote:

Hi,

I'm using Bruce Murphy's MIDIsender class (http://www.rattus.net/~packrat/audio/ChucK/files/midisender.ck

http://www.rattus.net/%7Epackrat/audio/ChucK/files/midisender.ck)

...

to generate MIDI from my Chuck code. I'm sending this MIDI to various virtual MIDI ports (using OSX's IAC Driver). Then I have various software instruments in Cubase, each one listening to one

of

...

the virtual ports. Works well when I run my Chuck program, but if

in

...

Cubase I arm the tracks and try to record the incoming MIDI, all

the

...

events get 'collapsed' at the same time, specifically the moment

I

...

click record. They do get recorded, but all starting at the same

time.

...

This only happens if I want to record them, if I'm only playing, timing is fine.

Using MidiMonitor I see that the time for all the MIDI events generated from Chuck is 0, that seems to be the issue. Any

thoughts

...

on how I can change that?

MidiMsg is defined as a four byte record

https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.h#L65

but ChucK only sets three bytes on send

https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.cpp#L120

midisender.ck http://midisender.ck does the same. Is the unset

byte

...

supposed to be the time? Suppose I should go read the spec.

It appears time is written and read from files separately

https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.cpp#L823 https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.cpp#L837

Not sure that helps,

michael

_______________________________________________ chuck-users mailing list chuck-users@lists.cs.princeton.edu https://lists.cs.princeton.edu/mailman/listinfo/chuck-users

-- http://dense13.com http://www.whole-play.com https://www.30daygroove.com

------------------------------------------------------------------------

От: Gonzalo Кому: chuck-users@lists.cs.princeton.edu Отправлено: Fri Dec 09 02:27:04 GMT+03:00 2016 Тема: Re: [chuck-users] Midi time problem

I found this:

"...the MIDI specification has different parts. One part describes MIDI

"wire" protocol (messages sent between devices in real time), and another part describes Standard MIDI Files (messages stored as events in "sequences"). In the latter part of the specification, each event stored in a standard MIDI file is tagged with a timing value that indicates when that event should be played. By contrast, messages in MIDI wire protocol are always supposed to be processed immediately, as soon as they're received by a device, so they have no accompanying timing values".

(https://docs.oracle.com/javase/tutorial/sound/MIDI-messages.html)

Might suggest there's no problem with the MidiMsg. Maybe it's a Cubase issue? Someone suggested it's a Midi TimeCode issue, but I know nothing

about that. I'll keep looking, but if anybody has any more info that'll

be very welcome.

Gonzalo

...

Thanks Michael,

This might be a bit over my head, but I'll look into it. Never checked Chuck's source code before, at the very least it'll be fun. :)

Gonzalo

On 08/12/16 23:28, Michael Heuer wrote:

...

On Thu, Dec 8, 2016 at 3:52 PM, Gonzalo mailto:gonzalo@dense13.com> wrote:

Hi,

I'm using Bruce Murphy's MIDIsender class (http://www.rattus.net/~packrat/audio/ChucK/files/midisender.ck

http://www.rattus.net/%7Epackrat/audio/ChucK/files/midisender.ck)

...

to generate MIDI from my Chuck code. I'm sending this MIDI to various virtual MIDI ports (using OSX's IAC Driver). Then I have various software instruments in Cubase, each one listening to

one of

...

the virtual ports. Works well when I run my Chuck program, but

if in

...

Cubase I arm the tracks and try to record the incoming MIDI, all

...

...

events get 'collapsed' at the same time, specifically the moment

I

...

click record. They do get recorded, but all starting at the same time.

This only happens if I want to record them, if I'm only playing, timing is fine.

Using MidiMonitor I see that the time for all the MIDI events generated from Chuck is 0, that seems to be the issue. Any

On 09/12/16 00:11, Gonzalo wrote: the thoughts

...

...

on how I can change that?

MidiMsg is defined as a four byte record

https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.h#L65

but ChucK only sets three bytes on send

https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.cpp#L120

...

midisender.ck http://midisender.ck does the same. Is the unset

byte

...

supposed to be the time? Suppose I should go read the spec.

It appears time is written and read from files separately

https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.cpp#L823

...

https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.cpp#L837

...

Not sure that helps,

michael

_______________________________________________ chuck-users mailing list chuck-users@lists.cs.princeton.edu https://lists.cs.princeton.edu/mailman/listinfo/chuck-users

-- http://dense13.com http://www.whole-play.com https://www.30daygroove.com

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От: Eugene Martynec Кому: ChucK Users Mailing List Отправлено: Fri Dec 09 03:08:56 GMT+03:00 2016 Тема: Re: [chuck-users] Midi time problem

Greetings

Why not send each track instrument a separate midi channel on a single port. Question is will Cubase do that. It used to only allow one midi channel at a time when recording. Certainly that is no longer the case?

On Dec 8, 2016 18:28, "Gonzalo" wrote:

...

I found this:

"...the MIDI specification has different parts. One part describes MIDI "wire" protocol (messages sent between devices in real time), and another part describes Standard MIDI Files (messages stored as events in "sequences"). In the latter part of the specification, each event stored in a standard MIDI file is tagged with a timing value that indicates when that event should be played. By contrast, messages in MIDI wire protocol are always supposed to be processed immediately, as soon as they're received by a device, so they have no accompanying timing values".

(https://docs.oracle.com/javase/tutorial/sound/MIDI-messages.html)

Might suggest there's no problem with the MidiMsg. Maybe it's a Cubase issue? Someone suggested it's a Midi TimeCode issue, but I know nothing about that. I'll keep looking, but if anybody has any more info that'll be very welcome.

Gonzalo

On 09/12/16 00:11, Gonzalo wrote:

...

Thanks Michael,

This might be a bit over my head, but I'll look into it. Never checked Chuck's source code before, at the very least it'll be fun. :)

Gonzalo

On 08/12/16 23:28, Michael Heuer wrote:

...

On Thu, Dec 8, 2016 at 3:52 PM, Gonzalo mailto:gonzalo@dense13.com> wrote:

Hi,

I'm using Bruce Murphy's MIDIsender class (http://www.rattus.net/~packrat/audio/ChucK/files/midisender.ck

http://www.rattus.net/%7Epackrat/audio/ChucK/files/midisender.ck)

...

to generate MIDI from my Chuck code. I'm sending this MIDI to various virtual MIDI ports (using OSX's IAC Driver). Then I

have

...

various software instruments in Cubase, each one listening to

one of

...

the virtual ports. Works well when I run my Chuck program, but

if in

...

Cubase I arm the tracks and try to record the incoming MIDI,

all the

...

events get 'collapsed' at the same time, specifically the

moment I

...

click record. They do get recorded, but all starting at the

...

time.

This only happens if I want to record them, if I'm only

same playing,

...

timing is fine.

Using MidiMonitor I see that the time for all the MIDI events generated from Chuck is 0, that seems to be the issue. Any

thoughts

...

on how I can change that?

MidiMsg is defined as a four byte record

https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.h#L65

but ChucK only sets three bytes on send

https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.cpp#L120

...

midisender.ck http://midisender.ck does the same. Is the unset

byte

...

supposed to be the time? Suppose I should go read the spec.

It appears time is written and read from files separately

https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.cpp#L823

...

https://github.com/ccrma/chuck/blob/master/src/midiio_rtmidi.cpp#L837

...

Not sure that helps,

michael

_______________________________________________ chuck-users mailing list chuck-users@lists.cs.princeton.edu https://lists.cs.princeton.edu/mailman/listinfo/chuck-users

-- http://dense13.com http://www.whole-play.com https://www.30daygroove.com _______________________________________________ chuck-users mailing list chuck-users@lists.cs.princeton.edu https://lists.cs.princeton.edu/mailman/listinfo/chuck-users

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