RE: MIDI "Controller" Support (was: Rationale for ignoring common MIDI control changes)
RE: MIDI "Controller" Support (was: Rationale for ignoring common MIDI control changes)
- Subject: RE: MIDI "Controller" Support (was: Rationale for ignoring common MIDI control changes)
- From: "MMA \(Tom White\)" <email@hidden>
- Date: Mon, 14 Jul 2003 14:40:40 -0700
Data Entry is required for devices compliant with GM and DLS. It
is used to set the Pitch Bend Sensitivity and Fine/Course Tuning.
- Tom White, MMA
>
-----Original Message-----
>
From: email@hidden
>
[mailto:email@hidden]On Behalf Of phil c
>
Sent: Saturday, July 12, 2003 7:24 AM
>
To: CoreAudio API
>
Subject: Re: MIDI "Controller" Support (was: Rationale for ignoring
>
common MIDI control changes)
>
>
>
Quite a few of the controllers in your list are rarely supported.
>
Sustenudo, Soft, Legato, Hold2, etc.. Data Entry, Filter
>
resonance, the
>
vibrato controllers are also very rare. It's been a fairly long time
>
since I have seen these implemented or been asked to
>
implement them on
>
hardware designs.
>
>
phil
>
On Friday, July 11, 2003, at 04:55 PM, Bill Stewart wrote:
>
>
> There is a list of controls that all "GM compatible" synths are
>
> generally required to support. I think a similar regime should be
>
> imposed on software synths for a degree of consistency that
>
has served
>
> the users of hardware synths rather well. Some controls may
>
not make
>
> sense of course, but many/most do...
>
>
>
> For those interested here's the list:
>
>
>
> - MIDI Controllers
>
> // These have an LSB as well (in brackets)
>
> BankSelect = 0, (32)
>
> ModWheel = 1, (33)
>
> Breath = 2, (34)
>
> Foot = 4, (36)
>
> PortamentoTime = 5, (37)
>
> DataEntry = 6, (38)
>
> Volume = 7, (39)
>
> Balance = 8, (40)
>
> Pan = 10, (42)
>
> Expression = 11, (43)
>
>
>
> // these controls have a (0-63) == off,
>
(64-127) == on (no LSB)
>
> Sustain = 64, //hold1
>
> Portamento = 65,
>
> Sostenuto = 66,
>
> Soft = 67,
>
> LegatoPedal = 68,
>
> Hold2Pedal = 69,
>
> FilterResonance = 71,
>
> ReleaseTime = 72,
>
> AttackTime = 73,
>
> Brightness = 74,
>
> DecayTime = 75,
>
> VibratoRate = 76,
>
> VibratoDepth = 77,
>
> VibratoDelay = 78,
>
>
>
> // these controls have a 0 < 128 range (no LSB)
>
> ReverbLevel = 91,
>
> ChorusLevel = 93,
>
>
>
> AllSoundOff = 120,
>
> ResetAllControllers = 121,
>
> AllNotesOff = 123,
>
>
>
> // these control ID's have a range of 0 < 128
>
> RPN_PitchBendSenstivity
>
> RPN_ChannelFineTune
>
> RPN_ChannelCourseTune
>
> RPN_ModDepthRange
>
>
>
> - Pitch Bend
>
> - Channel Aftertouch
>
> - Program Change
>
>
>
> As we've already discussed, the support for Program and
>
Bank Select
>
> messages are not required if the synth is a preset based synth -
>
> essentially a mono-timbral synth in most cases, thus the
>
host services
>
> will generally provide a way to map a Patch/Bank to a preset
>
> selection... I've left off Polyphonic Aftertouch, as no-one
>
has seemed
>
> that interested in supporting this...
>
>
>
> I put this list together from a GM spec that is available
>
for perusal
>
> at the MMA (MIDI Manufacturer's Association) web site
>
> (http://www.midi.org/)
>
>
>
> Obviously, many of these are not particularly interesting
>
for alot of
>
> synths - if I were asked to say which ones I think are important:
>
> Volume
>
> Pan
>
> Mod Wheel
>
> Foot Controller
>
> Sustain
>
> AllSoundOff
>
> ResetAllControllers
>
> AllNotesOff
>
> Pitch Bend (and its nice to have the RPN support for
>
setting the range
>
> for that as well)
>
> After Touch
>
>
>
> Doug/Chris may have some additional comments as well..
>
>
>
> Bill
>
>
>
> On Friday, July 11, 2003, at 12:42 PM, Robert Grant wrote:
>
>
>
>> I'm working on a bigger and better Rax-like host and I'm
>
trying to
>
>> provide a MIDI mixer to handle the Pan/Balance issue as
>
well as allow
>
>> level setting for both internal and external synths from a single
>
>> point. But it seems that many AU synths are ignoring
>
Channel Volume
>
>> and some are ignoring Pan.
>
>>
>
>> Is there any reason to ignore Channel Volume when most external
>
>> synths will honor it? And what about Pan/Balance?
>
>>
>
>> Thanks for the enlightenment...
>
>>
>
>> Robert.
>
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>
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>
>
>
>
>
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