4 headsets and a mixer

[kozikowski]

I think the cell interface thing is what that does:
http://www.jkaudio.com/daptor2.htm
I need to read through it.
Koz

[Str8sixfan]

The grownups do this kind of thing with a mix-minus panel. The person on the cellphone has to hear the whole show without their own voice.
The mixed show minus their own voice. Mix-Minus. If you don't do that, the person on the cellphone will not be able to talk. They will hear their own voice returning to them, but up to half-second late. I don't know if you've ever been a party to a faulty conference call or ratty cell call, but that is intensely annoying and most people can't continue a conversation.

Note that's all above forcing a cellphone to work at all. But I think there's ways around that. There are terminals that plug into your cellphone headset jack and manage the sound.

Koz

When you put it in those terms, that makes even more sense. I was thinking there was a way to modify a cell phone headset to plug into the mixer.

I want to check out the link you provided first though.

[kozikowski]

My favorite mini-mixer has a service called Effects Send. You can select any of the inputs and send the sound out to an effects generator, echo generator, or other sound processor. You can do this completely independently of the show mix. That's the sound that would go to the cellphone for enjoyment at the far end. You would send all the microphones, headsets, music, etc, but not the channel containing the cellphone voice.

Meanwhile, the whole show with everything including the cellphone goes to the headphones, computer, and anybody or anything else who needs it.

I don't remember, did we introduce the idea of a headphone amplifier with individual volume controls? That can amplify and distribute the show to everybody who needs it.

This is the one we use.

http://www.samsontech.com/samson/produc ... -audio/q5/

Koz

[Str8sixfan]

page 2, steve mentioned the headphone amplifiers.

[kozikowski]

The "Daptor 2" seems to be pretty much the exact thing you need to plug the mixer into the cellphone. They did get my attention with this note:

? Can I send and receive audio at the same time?
! Yes, but be aware that on most phones, whatever
audio you send into the phone will come
back mixed with the receive audio.

Traditionally, cellphones do not have sidetone -- your own voice coming back to you in real time during the call like telephones do. This lack of sidetone gives you the cell phrase, "Hello? Can you hear me OK?" The sidetone on a telephone gives you the reassurance that the call is going through because you can hear a live channel. Not talking into a bar of soap.

Cell system delays prevent sidetone, so I don't know who's right there. If some of the mix-minus comes back from the cellphone into the mixer, that can cause a feedback loop.

"....talking to Joe Smith, in Lancing, Michigan. Joe, are you there?" "Yup, I'm here. mumumumumumMUMMUMUMUMUMUMU."

I don't know any way to prevent that with this equipment. The technology layer that interfaces with the phone company is always the worst.

Koz

[kozikowski]

My cellphone has a 3.5mm connection, not 2.5. I know you can get adapters, but some of them are not simple stereo connectors.

Never mind. The box comes with one of each.
Koz

[kozikowski]

So your task is to figure out if it's going to work with your cellphone. Sometimes, if the device is $30 and I have a use for it, I will buy one, inspect it and write it up. But not for $175 USD. I don't need to record a cellphone that bad. Find someone who's using it and speaks the same languages you do.

Koz

[Str8sixfan]

I'm actually in position to start buying equipment soon; likely a slow process as it will take time, but should be ready to go by mid August I would think. Yea I will see if I can't figure out a way to find someone using one of those things already. That's a great idea.

[kozikowski]

Cellphone connections are magic. Your problems and shortcomings show up at the other end. Many conferencing system work like that. My echo cancellation problems drive you crazy.

I so want to record someone who's in love with one of those microphones built into the headset cable. They're terrible. You get to listen to all their clothing rustling, swishing and thumping, but they they think everything perfect and it's the best thing since sex.

Let me show you what you sound like to me...

Do you have a shipping list? Generally where are you? Will you be shopping in Euros?
Koz

[Str8sixfan]

I'll be shopping in USD.