does anyone know or could give me tips/advice if i can build a 

hardware switcher like the external Bucket?

what i want to build is rather simple. the hardware takes 1 input and 

distrubute it into say 16 outputs. After the input and before the 

outputs, i would like to have a hardware kind of switcher which i can 

set a timer (either in hardware or max controlled) so that it sends 

the audio to output 1 for 10 secs, then switches to output 2 for 10 

does anyone know or could give me tips/advice if i can build a  
hardware switcher like the external Bucket?

what i want to build is rather simple. the hardware takes 1 input and  
distrubute it into say 16 outputs. After the input and before the  
outputs, i would like to have a hardware kind of switcher which i can  
set a timer (either in hardware or max controlled) so that it sends  
the audio to output 1 for 10 secs, then switches to output 2 for 10  
secs, output 3 for 10 secs and so on. i

audio-switcher

yes, it's still software. how about hardware?

Am 26.01.2008 um 19:16 schrieb don malone:

http://faculty.roosevelt.edu/malone/default.htm

yes, it's still software. how about hardware?
Am 26.01.2008 um 19:16 schrieb don malone:

>
> matrix~
> --
> it takes all of us
> LoneMonad
> http://faculty.roosevelt.edu/malone/default.htm


On Jan 26, 2008, at 11:51 AM, Sonic Kooking wrote:

> yes, it's still software. how about hardware?

Combined with a hardware MIDI control source, something like the 

Switchblade could do the actual switching. Not a cheap solution, though.

Combined with a hardware MIDI control source, something like the  
Switchblade could do the actual switching. Not a cheap solution, though.
http://www.soundsculpture.com/

hmm. i wonder if i could build the electronics and control it with 

Am 26.01.2008 um 21:16 schrieb Chris Muir:

> On Jan 26, 2008, at 11:51 AM, Sonic Kooking wrote:

>> yes, it's still software. how about hardware?

> Combined with a hardware MIDI control source, something like the 

> Switchblade could do the actual switching. Not a cheap solution, 

hmm. i wonder if i could build the electronics and control it with  
arduino.

>
> On Jan 26, 2008, at 11:51 AM, Sonic Kooking wrote:
>
>> yes, it's still software. how about hardware?
>
> Combined with a hardware MIDI control source, something like the  
> Switchblade could do the actual switching. Not a cheap solution,  
> though.
> http://www.soundsculpture.com/
>
> -C
>


You can use a digital Mix Deck (01V96 Yamaha,...) control by MIDI messages.

Just an idea :
You can use a digital Mix Deck (01V96 Yamaha,...) control by MIDI messages.

I think using matrix~ with a 16 channel sound card would be the simplest solution.

if you go the multiplexer route you need to be aware that a multiplexer has many inputs and one output and a demultiplexer has one input many outputs - this is probably what you want.

well, if you're dealing with analogue voltage it would seem that 

current can flow both ways, don't you think?

The CD74HC4067 and CD74HCT4067 devices are digitally

controlled analog switches that utilize silicon-gate CMOS

technology to achieve operating speeds similar to LSTTL,

with the low power consumption of standard CMOS

These analog multiplexers/demultiplexers control analog

voltages that may vary across the voltage supply range.

They are bidirectional switches thus allowing any analog

input to be used as an output and vice-versa.

> if you go the multiplexer route you need to be aware that a 

> multiplexer has many inputs and one output and a demultiplexer has 

> one input many outputs - this is probably what you want.

well, if you're dealing with analogue voltage it would seem that  
current can flow both ways, don't you think?

The CD74HC4067 and CD74HCT4067 devices are digitally
controlled analog switches that utilize silicon-gate CMOS
technology to achieve operating speeds similar to LSTTL,
with the low power consumption of standard CMOS
integrated circuits.
These analog multiplexers/demultiplexers control analog
voltages that may vary across the voltage supply range.
They are bidirectional switches thus allowing any analog
input to be used as an output and vice-versa.

> if you go the multiplexer route you need to be aware that a  
> multiplexer has many inputs and one output and a demultiplexer has  
> one input many outputs - this is probably what you want.

Quote: jasch wrote on Sun, 27 January 2008 15:16

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

> well, if you're dealing with analogue voltage it would seem that 

> current can flow both ways, don't you think?

yes it can because the CD74HC4067 and CD74HCT4067 are combined Multiplexer/Demultiplexer's

Quote: jasch wrote on Sun, 27 January 2008 15:16
----------------------------------------------------
> well, if you're dealing with analogue voltage it would seem that  
> current can flow both ways, don't you think?

yes it can because the CD74HC4067 and CD74HCT4067 are combined Multiplexer/Demultiplexer's


On Jan 27, 2008, at 6:26 AM, Leafcutter John wrote:

You should further note that the chips in question know nothing about 

audio, so they'll switch whenever they're told to switch. This causes 

problems if there's audio sounding when they're told to switch: there 

will be clicks on the output that is being switched from, as well as 

Another approach, although also expensive, is to configure a modular 

synth to do this. You would need a sequencer that had individual stage 

outputs, as well as a VCA and lag processor (or perhaps envelope 

On Jan 27, 2008, at 6:26 AM, Leafcutter John wrote:
> if you go the multiplexer route you need to be aware that a  
> multiplexer has many inputs and one output and a demultiplexer has  
> one input many outputs - this is probably what you want.

You should further note that the chips in question know nothing about  
audio, so they'll switch whenever they're told to switch. This causes  
problems if there's audio sounding when they're told to switch: there  
will be clicks on the output that is being switched from, as well as  
the channel that is being switched to.

Another approach, although also expensive, is to configure a modular  
synth to do this. You would need a sequencer that had individual stage  
outputs, as well as a VCA and lag processor (or perhaps envelope  
generator) per channel.

Audio Switcher