There are two benefits to the digital version. One is much greater separation of incoming signal from the outgoing signal. A regular phone needs to lower the incoming voice so it doesn't feedback into the outgoing signal. Callers don't want to hear their own voice coming back or worse a loud feedback whine.
A digital hybrid can lower attenuate the signal by 50 dB. The second advantage is, since the unit is powered, you can supply gain to the signals. That means if you can't hear them or they can't hear you, you can turn the volume up. The analog hybrid does mix a bit of the two signals together but still provides 20dB of attenuation. And usually the phone signals are adequate so you don't have to turn anything up. Also if you're using a mixer you can supply some gain with the mixer.
I can't go into specifics for each piece of hardware and recording software but you will need a mixing board or a seperate audio interface to hook up the hybrid. Most of the audio interfaces have "virtual" mixing capabilities which you can access from your recording software. So here's the secret to hooking it up. The hybrid has a phone connector--the typical "phone jack"-- on the back to plug the phone line into.
You can also plug a regular phone into an additional jack so you can use the phone line as a regular phone. The hybrid also has a "line in" connector to which you supply signals that you want to go down the telephone line to the client. And it has a "line out" connector which supplies your mixer with the telephone signal from the caller. To acheive this you need to create a "mix" of signals for your headphones and a "mix minus one" signal that goes out to the telephone as follows:. Exactly how you do this is specific to your hardware and software but this gives you the outline of what you're trying to acheive.
The important point to note is you DON'T want the clients voice going back out to the telephone hence the "minus one". This will create the dreaded feedback loop. I've been doing mixing for years and this still makes me scratch my head. It's best to write it down and diagram it on a piece of paper. And save the paper so you don't have to decipher it again at a later date!
Suppose you have a really simple recording system. Just your trusty USB mic and your laptop. Without the mixer or interface you can't use the telephone hybrid but there are other alternatives that can work almost as well. Remember the goal is for the client to hear you when you talk and for you to hear the client give direction. Here are some other ways to do this. I used this for years. The portable phone is connected to your landline or VoIP phone such as a cable phone, Vonage, or even the remarkable MagicJack.
You then plug a headset into the receiver and clip it to your belt. Put the headset on and put your headphones over it. Are you missing notifications from your favorite YouTube channels or when someone replies to your comments there? Here are 9 best ways to fix the YouTube notifications not working problem on your Android and iPhone.
Facebook Messenger keeps crashing? Check out these troubleshooting fixes to resolve Messenger crashes on Android and iPhone. Facebook Messenger not sending notifications? It's what radio stations use for phone interviews. The patch works like this: the client will call you on a specified number and you will hear them in your headset. You will then record using your own equipment and the client will be able to listen and provide real-time feedback.
Only your voice will be recorded, not anything the client says through the headset. The quality of a good phone patch can not be replaced using online calling services like Skype but it can do the trick. Phone patches are also a great tool to use in the event of dealing with a client who wants you to call their phone and record a message. By using a phone patch, you can connect a pre-recorded message including music into their phone line.
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