[A6] Re: A6 Digest, Vol 106, Issue 6

Mon Jun 14 12:58:32 PDT 2004

Hello-

I think your anomalies are, simply put, non-anomalous.

To those in the know:  Is this what they mean when they say "slow"
envelopes?  I.e., slow PROCESSOR power allocated to governing the envelopes?

Yes, the clicking is, I think, due to the relatively low resolution of the
LFO (the remedial suggestion is that you loop an envelope, which has much
higher resolution than the LFOs).  In other words, when they say the LFOs
are slow, I think they mean that they are "slow" as far as resolution (or,
processing power) goes.

The anomalies are normal, probably.  I am convinced that just about anything
from an A6 is "normal," though, and that Alesis would probably tell you the
same, just to keep warranty repair requests at reasonable bay.

If you use a fast sine wave LFO on the 2 pole filter (with about 80%
resonance) and play an upper-register key, you will hear this "clicking"
phenomenon again, probably.  Do you?

JC

on 6/14/04 2:00 PM, a6-request at code404.com at a6-request at code404.com wrote:

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> Today's Topics:
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>  1. [A6]Audio anomalies on some presets (tomislav babic)
>  2. RE: [A6]Audio anomalies on some presets (Kurt Stengel)
>  3. RE: [A6]Audio anomalies on some presets (glenn eriksson)
>  4. Re: [A6]Audio anomalies on some presets (Colin Chung)
>  5. Re: [A6]Audio anomalies on some presets (Colin Chung)
>  6. Re: [A6]Audio anomalies on some presets (Colin Chung)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Mon, 14 Jun 2004 06:13:06 +0200
> From: "tomislav babic" <clusterchord at hotmail.com>
> Subject: [A6]Audio anomalies on some presets
> To: a6 at code404.com
> Message-ID: <BAY2-F158RxKZMqA4dx0005f0a8 at hotmail.com>
> Content-Type: text/plain; format=flowed
> 
> hi everyone. well, i noticed two things happening on some presets on my A6:
> 
> 1. low frequency distortion/rumble, especially detectable when playing up
> into 4th and 5th octave. I tried varying the gain structure to rid of it,
> lowering VCO levels going into VCF, lowering VCFs mixer level going to VCA
> etc. but nothing helped. It's not the end of the world, i'm still using A6
> quite a bit, but cant do hi strings sounds without some background to mask
> it.
> 
> mp3 examples are here, together with the preset number used:
> 
> http://www.babic.com/MP3/ANDY-P2-003Fanfare.mp3
> http://www.babic.com/MP3/ANDY-P2-004SoftStrangs.mp3
> 
> 2. on some sounds using LFO mod of pan there's quite a bit of clicking,
> rendering it unusable:
> 
> http://www.babic.com/MP3/ANDY-P2-088Lovely.mp3 (i turn the mod wheel halfway
> thru)
> 
> 
> My first impulse, after tweaking the parameters etc, was that my A6 is at
> fault, and i run to visit my
> friend who has A6 as well - comparison left us with same anomalies!   btw,
> his A6 has a bit brighter sound, and faster envelopes, can this be?!?
> 
> a pic from the comparison test: http://www.babic.com/PICs/2ANDY1041-500.jpg
> 
> So, now i posted these examples together with preset numbers, in hope to get
> some feedback
> from other users and figure out is this common to all Andromedas out there,
> or my friend and i have
> got them from the same faulty batch ?!?
> 
> i'd appreciate if some of you could spare some time to check how your A6
> behaves with these patches...
> 
> thanks
> 
> Tom Babic
> www.babic.com
> 
> _________________________________________________________________
> The new MSN 8: advanced junk mail protection and 2 months FREE*
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> 
> 
> ------------------------------
> 
> Message: 2
> Date: Mon, 14 Jun 2004 00:45:57 -0400
> From: "Kurt Stengel" <kstengel at cfl.rr.com>
> Subject: RE: [A6]Audio anomalies on some presets
> To: <a6 at code404.com>
> Message-ID: <MMEBIFCGCDHGPLOLOFJDOEPKCDAA.kstengel at cfl.rr.com>
> Content-Type: text/plain;    charset="iso-8859-1"
> 
> Mine has/had it as well.  Just eq the low end out of the offending pads.
> The lfo's on the A6 are not really that great IMO.  I would imagine that is
> where the extra noise is coming from.  But who knows. Yea I notice it in
> mostly the higher registers.
> 
> Kurt
> 
> -----Original Message-----
> From: a6-bounces at code404.com [mailto:a6-bounces at code404.com]On Behalf Of
> tomislav babic
> Sent: Monday, June 14, 2004 12:13 AM
> To: a6 at code404.com
> Subject: [A6]Audio anomalies on some presets
> 
> 
> hi everyone. well, i noticed two things happening on some presets on my A6:
> 
> 1. low frequency distortion/rumble, especially detectable when playing up
> into 4th and 5th octave. I tried varying the gain structure to rid of it,
> lowering VCO levels going into VCF, lowering VCFs mixer level going to VCA
> etc. but nothing helped. It's not the end of the world, i'm still using A6
> quite a bit, but cant do hi strings sounds without some background to mask
> it.
> 
> mp3 examples are here, together with the preset number used:
> 
> http://www.babic.com/MP3/ANDY-P2-003Fanfare.mp3
> http://www.babic.com/MP3/ANDY-P2-004SoftStrangs.mp3
> 
> 2. on some sounds using LFO mod of pan there's quite a bit of clicking,
> rendering it unusable:
> 
> http://www.babic.com/MP3/ANDY-P2-088Lovely.mp3 (i turn the mod wheel halfway
> thru)
> 
> 
> My first impulse, after tweaking the parameters etc, was that my A6 is at
> fault, and i run to visit my
> friend who has A6 as well - comparison left us with same anomalies!   btw,
> his A6 has a bit brighter sound, and faster envelopes, can this be?!?
> 
> a pic from the comparison test: http://www.babic.com/PICs/2ANDY1041-500.jpg
> 
> So, now i posted these examples together with preset numbers, in hope to get
> some feedback
> from other users and figure out is this common to all Andromedas out there,
> or my friend and i have
> got them from the same faulty batch ?!?
> 
> i'd appreciate if some of you could spare some time to check how your A6
> behaves with these patches...
> 
> thanks
> 
> Tom Babic
> www.babic.com
> 
> _________________________________________________________________
> The new MSN 8: advanced junk mail protection and 2 months FREE*
> http://join.msn.com/?page=features/junkmail
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> 
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Mon, 14 Jun 2004 11:41:35 +0200
> From: "glenn eriksson" <anykeystudio at hotmail.com>
> Subject: RE: [A6]Audio anomalies on some presets
> To: a6 at code404.com
> Message-ID: <BAY15-F36C8wSA1XvpF00099876 at hotmail.com>
> Content-Type: text/plain; charset=iso-8859-1; format=flowed
> 
> This is no fault; this is what happens when you combine two sound sources.
> It?s called intonation (in English I think), try to listen to just one Vco
> and se if you get the same result. I listen to thee examples and it?s not
> that bad, it?s normal. When I had mi Virus C, it sounded terrible in the
> upper register, due to some aliasing as well.
> 
> /Greetings Glenn
> 
> 
>> From: "Kurt Stengel" <kstengel at cfl.rr.com>
>> To: <a6 at code404.com>
>> Subject: RE: [A6]Audio anomalies on some presets
>> Date: Mon, 14 Jun 2004 00:45:57 -0400
>> 
>> Mine has/had it as well.  Just eq the low end out of the offending pads.
>> The lfo's on the A6 are not really that great IMO.  I would imagine that is
>> where the extra noise is coming from.  But who knows. Yea I notice it in
>> mostly the higher registers.
>> 
>> Kurt
>> 
>> -----Original Message-----
>> From: a6-bounces at code404.com [mailto:a6-bounces at code404.com]On Behalf Of
>> tomislav babic
>> Sent: Monday, June 14, 2004 12:13 AM
>> To: a6 at code404.com
>> Subject: [A6]Audio anomalies on some presets
>> 
>> 
>> hi everyone. well, i noticed two things happening on some presets on my A6:
>> 
>> 1. low frequency distortion/rumble, especially detectable when playing up
>> into 4th and 5th octave. I tried varying the gain structure to rid of it,
>> lowering VCO levels going into VCF, lowering VCFs mixer level going to VCA
>> etc. but nothing helped. It's not the end of the world, i'm still using A6
>> quite a bit, but cant do hi strings sounds without some background to mask
>> it.
>> 
>> mp3 examples are here, together with the preset number used:
>> 
>> http://www.babic.com/MP3/ANDY-P2-003Fanfare.mp3
>> http://www.babic.com/MP3/ANDY-P2-004SoftStrangs.mp3
>> 
>> 2. on some sounds using LFO mod of pan there's quite a bit of clicking,
>> rendering it unusable:
>> 
>> http://www.babic.com/MP3/ANDY-P2-088Lovely.mp3 (i turn the mod wheel
>> halfway
>> thru)
>> 
>> 
>> My first impulse, after tweaking the parameters etc, was that my A6 is at
>> fault, and i run to visit my
>> friend who has A6 as well - comparison left us with same anomalies!   btw,
>> his A6 has a bit brighter sound, and faster envelopes, can this be?!?
>> 
>> a pic from the comparison test: http://www.babic.com/PICs/2ANDY1041-500.jpg
>> 
>> So, now i posted these examples together with preset numbers, in hope to
>> get
>> some feedback
>> from other users and figure out is this common to all Andromedas out there,
>> or my friend and i have
>> got them from the same faulty batch ?!?
>> 
>> i'd appreciate if some of you could spare some time to check how your A6
>> behaves with these patches...
>> 
>> thanks
>> 
>> Tom Babic
>> www.babic.com
>> 
>> _________________________________________________________________
>> The new MSN 8: advanced junk mail protection and 2 months FREE*
>> http://join.msn.com/?page=features/junkmail
>> 
>> _______________________________________________
>> A6 mailing list
>> A6 at code404.com
>> http://code404.com/mailman/listinfo/a6
>> 
>> 
>> _______________________________________________
>> A6 mailing list
>> A6 at code404.com
>> http://code404.com/mailman/listinfo/a6
> 
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> 
> 
> ------------------------------
> 
> Message: 4
> Date: Mon, 14 Jun 2004 20:46:36 +1000
> From: "Colin Chung" <coolcolj at optushome.com.au>
> Subject: Re: [A6]Audio anomalies on some presets
> To: <a6 at code404.com>
> Message-ID: <002c01c451fc$de219dd0$0200a8c0 at co3000977a>
> Content-Type: text/plain;    charset="iso-8859-1"
> 
> 
> ----- Original Message -----
> From: "tomislav babic" <clusterchord at hotmail.com>
> To: <a6 at code404.com>
> Sent: Monday, June 14, 2004 2:13 PM
> Subject: [A6]Audio anomalies on some presets
> 
> 
>> hi everyone. well, i noticed two things happening on some presets on my
> A6:
>> 
>> 1. low frequency distortion/rumble, especially detectable when playing up
>> into 4th and 5th octave. I tried varying the gain structure to rid of it,
>> lowering VCO levels going into VCF, lowering VCFs mixer level going to VCA
>> etc. but nothing helped. It's not the end of the world, i'm still using A6
>> quite a bit, but cant do hi strings sounds without some background to mask
>> it.
>> 
>> mp3 examples are here, together with the preset number used:
>> 
>> http://www.babic.com/MP3/ANDY-P2-003Fanfare.mp3
>> http://www.babic.com/MP3/ANDY-P2-004SoftStrangs.mp3
> 
> I can hear a faint low freq stuff on the strings one, but not the Fanfare
> one,
> anyway some high passing on the mixer should fix it?
> I dunno it just sounds like analog oscillators mixing together
> I can hear it on my machine on the strings one, not on the Fanfare
> Could be the effects ? When I turn the effects it goes away
> 
> 
>> 2. on some sounds using LFO mod of pan there's quite a bit of clicking,
>> rendering it unusable:
>> http://www.babic.com/MP3/ANDY-P2-088Lovely.mp3 (i turn the mod wheel
> halfway
>> thru)
> 
> Easily heard here. I didn't hear it on my machione, maybe your VCAs need
> calibration
> You can do that in the Tune page
> 
>> My first impulse, after tweaking the parameters etc, was that my A6 is at
>> fault, and i run to visit my
>> friend who has A6 as well - comparison left us with same anomalies!   btw,
>> his A6 has a bit brighter sound, and faster envelopes, can this be?!?
> 
> There are slight differences in sound between units, but not drasticly
> As far as the envelopes go, make sure both units have the same settings
> in the engine optimiser, other than that I can't see why they would be any
> different
> since the envelopes are CPU generated :)
> 
> 
> 
> ------------------------------
> 
> Message: 5
> Date: Mon, 14 Jun 2004 20:52:04 +1000
> From: "Colin Chung" <coolcolj at optushome.com.au>
> Subject: Re: [A6]Audio anomalies on some presets
> To: <a6 at code404.com>
> Message-ID: <003201c451fd$a1a4e2d0$0200a8c0 at co3000977a>
> Content-Type: text/plain;    charset="iso-8859-1"
> 
> 
> ----- Original Message -----
> From: "Colin Chung" <coolcolj at optushome.com.au>
> To: <a6 at code404.com>
> Sent: Monday, June 14, 2004 8:46 PM
> Subject: Re: [A6]Audio anomalies on some presets
> 
> 
> 
>>> 2. on some sounds using LFO mod of pan there's quite a bit of clicking,
>>> rendering it unusable:
>>> http://www.babic.com/MP3/ANDY-P2-088Lovely.mp3 (i turn the mod wheel
>> halfway
>>> thru)
>> 
>> Easily heard here. I didn't hear it on my machione, maybe your VCAs need
>> calibration
>> You can do that in the Tune page
> 
> wait I can hear it on my machine now when I press the keys harder
> looks like its volume related
> 
> 
> 
> ------------------------------
> 
> Message: 6
> Date: Mon, 14 Jun 2004 21:00:25 +1000
> From: "Colin Chung" <coolcolj at optushome.com.au>
> Subject: Re: [A6]Audio anomalies on some presets
> To: <a6 at code404.com>
> Message-ID: <003801c451fe$cc519c20$0200a8c0 at co3000977a>
> Content-Type: text/plain;    charset="iso-8859-1"
> 
> 
> ----- Original Message -----
> From: "Colin Chung" <coolcolj at optushome.com.au>
> To: <a6 at code404.com>
> Sent: Monday, June 14, 2004 8:52 PM
> Subject: Re: [A6]Audio anomalies on some presets
> 
> 
> 
>>>> 2. on some sounds using LFO mod of pan there's quite a bit of
> clicking,
>>>> rendering it unusable:
>>>> http://www.babic.com/MP3/ANDY-P2-088Lovely.mp3 (i turn the mod wheel
>>> halfway
>>>> thru)
>>> 
>>> Easily heard here. I didn't hear it on my machione, maybe your VCAs need
>>> calibration
>>> You can do that in the Tune page
>> 
>> wait I can hear it on my machine now when I press the keys harder
>> looks like its volume related
>> 
> 
> Ok I figured it out - its caused by LFO2 modulating the filter mixer level
> when you turn the mod wheel up, not the panning itself.
> if you lower the level of the modulation Filter 2
> from 37 or so down to say 28, it goes away.
> 
> 
> 
> ------------------------------
> 
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> 
> 
> End of A6 Digest, Vol 106, Issue 6
> **********************************
> 