Hello,

I'm trying to figure out if one can safely assume that almost all PC
sound card nowdays have 1.5 Volt on the microphone jack.

The reason I'm asking is because my company is selling a karaoke
product for PC that includes a condensor microphone that requires
1.5V.

The company manufacturing the microphone of course says it should work
fine on most computers, but I would like your opinion on it as well...

Any help on this is much appreciated!

Thanks!
/Fredrik

In article ,
(Fredrik) wrote:

I'm trying to figure out if one can safely assume that almost all PC sound
card nowdays have 1.5 Volt on the microphone jack.

The reason I'm asking is because my company is selling a karaoke product for
PC that includes a condensor microphone that requires 1.5V.

The company manufacturing the microphone of course says it should work fine
on most computers, but I would like your opinion on it as well...


The company is correct. We sell a lot of conferenceing mics that require that
bias voltage (none dare call it "phantom") on the mic jack. Never had an issue.
--
Regards,

Klay Anderson
http://www.klay.com
1-800-FOR-KLAY

In article ,
(Fredrik) wrote:

I'm trying to figure out if one can safely assume that almost all PC sound
card nowdays have 1.5 Volt on the microphone jack.

The reason I'm asking is because my company is selling a karaoke product for
PC that includes a condensor microphone that requires 1.5V.

The company manufacturing the microphone of course says it should work fine
on most computers, but I would like your opinion on it as well...


The company is correct. We sell a lot of conferenceing mics that require that
bias voltage (none dare call it "phantom") on the mic jack. Never had an issue.
--
Regards,

Klay Anderson
http://www.klay.com
1-800-FOR-KLAY

In article ,
(Fredrik) wrote:

I'm trying to figure out if one can safely assume that almost all PC sound
card nowdays have 1.5 Volt on the microphone jack.

The reason I'm asking is because my company is selling a karaoke product for
PC that includes a condensor microphone that requires 1.5V.

The company manufacturing the microphone of course says it should work fine
on most computers, but I would like your opinion on it as well...


The company is correct. We sell a lot of conferenceing mics that require that
bias voltage (none dare call it "phantom") on the mic jack. Never had an issue.
--
Regards,

Klay Anderson
http://www.klay.com
1-800-FOR-KLAY

In article ,
(Fredrik) wrote:

I'm trying to figure out if one can safely assume that almost all PC sound
card nowdays have 1.5 Volt on the microphone jack.

The reason I'm asking is because my company is selling a karaoke product for
PC that includes a condensor microphone that requires 1.5V.

The company manufacturing the microphone of course says it should work fine
on most computers, but I would like your opinion on it as well...


The company is correct. We sell a lot of conferenceing mics that require that
bias voltage (none dare call it "phantom") on the mic jack. Never had an issue.
--
Regards,

Klay Anderson
http://www.klay.com
1-800-FOR-KLAY

(Fredrik) writes:

I'm trying to figure out if one can safely assume that almost all PC
sound card nowdays have 1.5 Volt on the microphone jack.


You can assume that PC has some powering on the microphone
connector, but you can't assume that all PCs have exactly 1.5V
power source.

The typical PC microphone output has heavily power limited +5V
power feed out of it (the voltage drops to something like 1-3 volts
when electret microphone is plugged to it typically).

This powering method is to my knowledge standardized in
Intel PC building "standards" PC 97 / PC 99 in multimedia
specifications. Practically all built-in PC sound systems
and soundcards follow those specifications.

More details can be found at
http://www.epanorama.net/links/pc_so...ml#interfacing

The reason I'm asking is because my company is selling a karaoke
product for PC that includes a condensor microphone that requires
1.5V.

The company manufacturing the microphone of course says it should work
fine on most computers, but I would like your opinion on it as well...

Any help on this is much appreciated!

Thanks!
/Fredrik

--
Tomi Engdahl (http://www.iki.fi/then/)
Take a look at my electronics web links and documents at
http://www.epanorama.net/

(Fredrik) writes:

I'm trying to figure out if one can safely assume that almost all PC
sound card nowdays have 1.5 Volt on the microphone jack.


You can assume that PC has some powering on the microphone
connector, but you can't assume that all PCs have exactly 1.5V
power source.

The typical PC microphone output has heavily power limited +5V
power feed out of it (the voltage drops to something like 1-3 volts
when electret microphone is plugged to it typically).

This powering method is to my knowledge standardized in
Intel PC building "standards" PC 97 / PC 99 in multimedia
specifications. Practically all built-in PC sound systems
and soundcards follow those specifications.

More details can be found at
http://www.epanorama.net/links/pc_so...ml#interfacing

The reason I'm asking is because my company is selling a karaoke
product for PC that includes a condensor microphone that requires
1.5V.

The company manufacturing the microphone of course says it should work
fine on most computers, but I would like your opinion on it as well...

Any help on this is much appreciated!

Thanks!
/Fredrik

--
Tomi Engdahl (http://www.iki.fi/then/)
Take a look at my electronics web links and documents at
http://www.epanorama.net/

(Fredrik) writes:

I'm trying to figure out if one can safely assume that almost all PC
sound card nowdays have 1.5 Volt on the microphone jack.


You can assume that PC has some powering on the microphone
connector, but you can't assume that all PCs have exactly 1.5V
power source.

The typical PC microphone output has heavily power limited +5V
power feed out of it (the voltage drops to something like 1-3 volts
when electret microphone is plugged to it typically).

This powering method is to my knowledge standardized in
Intel PC building "standards" PC 97 / PC 99 in multimedia
specifications. Practically all built-in PC sound systems
and soundcards follow those specifications.

More details can be found at
http://www.epanorama.net/links/pc_so...ml#interfacing

The reason I'm asking is because my company is selling a karaoke
product for PC that includes a condensor microphone that requires
1.5V.

The company manufacturing the microphone of course says it should work
fine on most computers, but I would like your opinion on it as well...

Any help on this is much appreciated!

Thanks!
/Fredrik

--
Tomi Engdahl (http://www.iki.fi/then/)
Take a look at my electronics web links and documents at
http://www.epanorama.net/

(Fredrik) writes:

I'm trying to figure out if one can safely assume that almost all PC
sound card nowdays have 1.5 Volt on the microphone jack.


You can assume that PC has some powering on the microphone
connector, but you can't assume that all PCs have exactly 1.5V
power source.

The typical PC microphone output has heavily power limited +5V
power feed out of it (the voltage drops to something like 1-3 volts
when electret microphone is plugged to it typically).

This powering method is to my knowledge standardized in
Intel PC building "standards" PC 97 / PC 99 in multimedia
specifications. Practically all built-in PC sound systems
and soundcards follow those specifications.

More details can be found at
http://www.epanorama.net/links/pc_so...ml#interfacing

The reason I'm asking is because my company is selling a karaoke
product for PC that includes a condensor microphone that requires
1.5V.

The company manufacturing the microphone of course says it should work
fine on most computers, but I would like your opinion on it as well...

Any help on this is much appreciated!

Thanks!
/Fredrik

--
Tomi Engdahl (http://www.iki.fi/then/)
Take a look at my electronics web links and documents at
http://www.epanorama.net/