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JK
Guest
Guest
Tue Aug 09, 2011 8:25 pm
I posted this last week in sci.electronics.design but got no responses.
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Assuming typical MP3 player drive levels, is this circuit OK?
Plug > -- to -- > Jack
~~~~ ~~~~
Left __[R1]___.__.__ Left
Right __[R2]___| |__ Right
Common _______________ Common
R1 = R2 = 1000 ohms
Thanks for any advice!
..
JK
Guest
Guest
Tue Aug 09, 2011 8:25 pm
On Tue, 9 Aug 2011, Tom Biasi wrote:
Quote:
"JK" wrote in message news:1122113.2111_at_mail.invalid...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Assuming typical MP3 player drive levels, is this circuit OK?
Plug > -- to -- > Jack
~~~~ ~~~~
Left __[R1]___.__.__ Left
Right __[R2]___| |__ Right
Common _______________ Common
R1 = R2 = 1000 ohms
What do you mean by "two-channel mono"?
It may be me but I don't know what you want to do.
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Assuming typical MP3 player drive levels, is this circuit OK?
Plug > -- to -- > Jack
~~~~ ~~~~
Left __[R1]___.__.__ Left
Right __[R2]___| |__ Right
Common _______________ Common
R1 = R2 = 1000 ohms
What do you mean by "two-channel mono"?
It may be me but I don't know what you want to do.
I want to plug one end of the patch-cord into an MP3 player and then
plug earphones into the other end of the patch-cord. Then, at *each*
ear-piece I'd like to have an L+R mono signal.
..
Tom Biasi
Guest
Guest
Tue Aug 09, 2011 8:25 pm
"JK" wrote in message news:1122113.2111_at_mail.invalid...
I posted this last week in sci.electronics.design but got no responses.
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Assuming typical MP3 player drive levels, is this circuit OK?
Plug > -- to -- > Jack
~~~~ ~~~~
Left __[R1]___.__.__ Left
Right __[R2]___| |__ Right
Common _______________ Common
R1 = R2 = 1000 ohms
Thanks for any advice!
What do you mean by "two-channel mono"?
It may be me but I don't know what you want to do.
Tom
..
Tim Wescott
Guest
Guest
Tue Aug 09, 2011 8:25 pm
On Tue, 09 Aug 2011 13:25:11 -0500, JK wrote:
Quote:
I posted this last week in sci.electronics.design but got no responses.
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Assuming typical MP3 player drive levels, is this circuit OK?
Plug > -- to -- > Jack
~~~~ ~~~~
Left __[R1]___.__.__ Left
Right __[R2]___| |__ Right
Common _______________ Common
R1 = R2 = 1000 ohms
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Assuming typical MP3 player drive levels, is this circuit OK?
Plug > -- to -- > Jack
~~~~ ~~~~
Left __[R1]___.__.__ Left
Right __[R2]___| |__ Right
Common _______________ Common
R1 = R2 = 1000 ohms
"Two channel mono" == monophonic on a stereo plug?
That should work, as long as the input impedance of the 'mono' device is
high enough.
--
www.wescottdesign.com
George H.
Guest
Guest
Tue Aug 09, 2011 8:25 pm
"JK" <nomail_at_mail.invalid> wrote in message
news:1122115.1710_at_mail.invalid...
Quote:
On Tue, 9 Aug 2011, Tim Wescott wrote:
On Tue, 09 Aug 2011 13:25:11 -0500, JK wrote:
I posted this last week in sci.electronics.design but got no responses.
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Assuming typical MP3 player drive levels, is this circuit OK?
Plug > -- to -- > Jack
~~~~ ~~~~
Left __[R1]___.__.__ Left
Right __[R2]___| |__ Right
Common _______________ Common
R1 = R2 = 1000 ohms
"Two channel mono" == monophonic on a stereo plug?
Yes - L+R at each output channel.
That should work, as long as the input impedance of the 'mono' device is
high enough.
www.wescottdesign.com
OK. The mono device is just headphones.
My main concern was loading and/or cross-connection of the MP3 player's
output drivers - that's why I picked 1K mixing R.
Thanks for the reply!
On Tue, 09 Aug 2011 13:25:11 -0500, JK wrote:
I posted this last week in sci.electronics.design but got no responses.
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Assuming typical MP3 player drive levels, is this circuit OK?
Plug > -- to -- > Jack
~~~~ ~~~~
Left __[R1]___.__.__ Left
Right __[R2]___| |__ Right
Common _______________ Common
R1 = R2 = 1000 ohms
"Two channel mono" == monophonic on a stereo plug?
Yes - L+R at each output channel.
That should work, as long as the input impedance of the 'mono' device is
high enough.
www.wescottdesign.com
OK. The mono device is just headphones.
My main concern was loading and/or cross-connection of the MP3 player's
output drivers - that's why I picked 1K mixing R.
Thanks for the reply!
The cheap 'ear bug' sitting on my desk has a resistance of ~ 30 ohms. So
with 1 k's I think you'll need some gain after the mixing. If you wanted to
do it without any post amplification then I think you could pick some
'mixing' R's that match the resistance of the head phones you are using.
You throw away 1/2 the signal that way, but it's simple.
George H.
Quote:
.
Rich Grise
Guest
Guest
Tue Aug 09, 2011 9:23 pm
JK wrote:
Quote:
I posted this last week in sci.electronics.design but got no responses.
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Why?
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Why?
Thanks,
Rich
krw@att.bizzzzzzzzzzzz
Guest
Guest
Tue Aug 09, 2011 10:19 pm
On Tue, 09 Aug 11 13:25:11 EST, JK <nomail_at_mail.invalid> wrote:
Quote:
I posted this last week in sci.electronics.design but got no responses.
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Assuming typical MP3 player drive levels, is this circuit OK?
Plug > -- to -- > Jack
~~~~ ~~~~
Left __[R1]___.__.__ Left
Right __[R2]___| |__ Right
Common _______________ Common
R1 = R2 = 1000 ohms
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Assuming typical MP3 player drive levels, is this circuit OK?
Plug > -- to -- > Jack
~~~~ ~~~~
Left __[R1]___.__.__ Left
Right __[R2]___| |__ Right
Common _______________ Common
R1 = R2 = 1000 ohms
Yes. That's how it's done.
JK
Guest
Guest
Tue Aug 09, 2011 10:24 pm
On Tue, 9 Aug 2011, Tim Wescott wrote:
Quote:
On Tue, 09 Aug 2011 13:25:11 -0500, JK wrote:
I posted this last week in sci.electronics.design but got no responses.
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Assuming typical MP3 player drive levels, is this circuit OK?
Plug > -- to -- > Jack
~~~~ ~~~~
Left __[R1]___.__.__ Left
Right __[R2]___| |__ Right
Common _______________ Common
R1 = R2 = 1000 ohms
"Two channel mono" == monophonic on a stereo plug?
I posted this last week in sci.electronics.design but got no responses.
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Assuming typical MP3 player drive levels, is this circuit OK?
Plug > -- to -- > Jack
~~~~ ~~~~
Left __[R1]___.__.__ Left
Right __[R2]___| |__ Right
Common _______________ Common
R1 = R2 = 1000 ohms
"Two channel mono" == monophonic on a stereo plug?
Yes - L+R at each output channel.
Quote:
That should work, as long as the input impedance of the 'mono' device is
high enough.
www.wescottdesign.com
high enough.
www.wescottdesign.com
OK. The mono device is just headphones.
My main concern was loading and/or cross-connection of the MP3 player's
output drivers - that's why I picked 1K mixing R.
Thanks for the reply!
..
JK
Guest
Guest
Wed Aug 10, 2011 10:11 pm
Quote:
JK wrote:
I posted this last week in sci.electronics.design but got no responses.
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Why?
Thanks,
Rich
I posted this last week in sci.electronics.design but got no responses.
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Why?
Thanks,
Rich
At work, it's better to keep 'one ear open' and since my MP3 player(s)
don't have a stereo/mono select, this seemed like a good work-around.
..
Rich Grise
Guest
Guest
Thu Aug 11, 2011 3:47 am
JK wrote:
Quote:
JK wrote:
I posted this last week in sci.electronics.design but got no responses.
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Why?
At work, it's better to keep 'one ear open' and since my MP3 player(s)
don't have a stereo/mono select, this seemed like a good work-around.
Ah, got it.
I posted this last week in sci.electronics.design but got no responses.
Probably it's too basic. Anyway...
I'd like to make a small male/female patch-cord that would passively
mix-down stereo headphone output to two-channel mono.
Why?
At work, it's better to keep 'one ear open' and since my MP3 player(s)
don't have a stereo/mono select, this seemed like a good work-around.
Ah, got it.
Rich
elektroda.net NewsGroups Forum Index - Electronic for beginners - Stereo to 2-channel mono question
