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Simple Stereo Broadcasting by Bill Hall

Special guest blog by StreetJelly performer: Bill Hall.
Thoughts on the new “Jellycaster” stereo broadcasting process (and optional simple stereo set up).

Bill HallOverview:
The stereo broadcasting system nicknamed “Jellycaster” not only supports stereo broadcasting but it supports such broadcasting in exceptional high fidelity. I believe it is as good or better than you will have available on any other streaming sites. On StreetJelly, we have a very varied group of performers with different ways of presenting their music and all will benefit from this excellent available sound process.

For example: Some musicians add pre-recorded stereo background tracks from commercially available software programs such as “band in a box” or even separate drum machines. Some performers like adding effects such as reverb, chorus and vocal harmonizers. All can be done with varying amounts of complexity and all can sound great when heard via the Jellycaster.

My own simple stereo set up:
In my particular case, I use two microphones in a simple stereo setup called an XY configuration (described well in the Shure stereo microphone tutorial link below). I set up the microphones about chin level and two feet away to pick up my guitar and vocal as one stereo signal. Please note: I am by no means saying it is the best way to go but it just works for me and is simple to set up for acoustic musicians/singers. It also is a very pure stereo signal.

Getting a simple stereo set-up into the computer:
Some choices for transferring this type of simple stereo broadcasting into the computer are: 1) Use a USB audio interface, containing some good mic pre-amps and good analog to digital converters (Mackie, M-Audio, Pre-sonus and other companies produce these). They are now relatively inexpensive A simple two channel version is about $100-$200 U.S.. 2) Use one of the nice USB stereo microphones available today for a reasonable price, or 3) Buy a small format USB mixer that has at least two channels equipped with simple one knob compressors and effects (most importantly reverb).

My recommended option:
For the simple type of stereo set up as described herein, I recommend option 3). It gets you all the basic variables that are most important for good sound. Companies such as Yamaha, Behringer, and Samson make stereo USB mixers for $100-$200 U.S. equipped as described herein. This allows you to to apply some reverb for a little ambiance to all Channels (usually 4-12 in small format mixers). That said, all you need for an XY set up are two channels with a little stereo reverb and some simple compression (to make the overall sound a little fuller and tame the peaks a bit).
Below, is a link to Samson’s YouTube video describing their models just to give a nice idea of the essential features. Note: all the brands have nice microphone pre-amps on these models nowadays.

Again, this is just a recommendation for getting there simply. More elaborate set-ups will sound wonderful on the Jellycaster as well. Contact me if you want any help setting up such a simple system at

Thanks to Frankie and Martina for getting this great Stereo option in place.

Shure Website – Stereo microphone configuration (see XY)

Samson on YouTube – good simple video included on their small format stereo mixers

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  • Very nice article, Bill. I would like to add that I’ve seen many artist make the mistake of not turning off their internal mic. The folks here are so nice that they will say that it sounds great anyway. So performers, be on the safe side and check before your show!

  • Sharon Gay on November 26, 2015 at 3:39 pm said:

    I am not now, nor will I ever be, technical. I have owned an M-audio for several years and have never used it. I have a mic with a USB but the Interface accepts a 3 pronged male end. I have been told that there is no adapter for conversion. Also I have gone into preferences to choose my mic but still think my internal mic is on. Is there any way to tell? I have a MAC. By the way. Happy thanksgiving.

  • Those three pronged male connectors that your M-audio interface accepts are for the analog microphone preampliers before the signal is converted to digital. Those connectors are called XLR connectors and are standard on most professional/semipro microphones. The USB connection on your USB mic is aleady in the digital domain so you would no use or need an adaptor.You can still get a great sound going right from the USB mic into your USB port Sharon. Some USB mics are stereo. I do not recall if yours is mono or stereo but I do recall you had excellent sound. If you are chosing your mic in Prefeences and you chose your external USB mic it is doubtful your internal mic is atill on. I would glad to help you one on one if need be. Happy Thanksgiving! – Bill

  • Not sure if streetjelly is aware of this, but on Macintosh computers, if you use an external audio device via USB or firewire, flash (which is what streetjelly is using to stream from musicians) only sees one channel and it isn’t a mono sum of the two, its one of the left or right, so if you are inputting a stereo signal with any left and right differences one side will be missing. It works fine with the Macintosh built in line input.

  • Frank Edmiston on May 11, 2016 at 2:10 pm said:

    Does the option to broadcast in Jelly Caster mode show up automatically if it’s available on your system? I use a stereo USB mic (Blue Yeti) but an older laptop and I don’t see an option for it when I broadcast.

    • Access to the Jellycaster will be very clear shortly, in the coming weeks. Currently, the stereo broadcaster is only available to select beta-testers. But when it’s rolled out the general community, you will see the requirements and set-up steps to use the new broadcaster.