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dr_boehm

Hi Folks,

i tested the radias vocoder with my band yesterday. Its a not a very loud band but with a drummer and bass man standing by your side you need a certain volume for the keyboard monitor speaker Smile

I a beyerdynamic sgx58 microphone which has supercardial characteristic and they told me that it was very good against feedback problems.

I tried many different settings but always had the problems of feedback in the lower to middle frequency range (esp. when playing chords).

I found no setting that let me get a sufficient clarity without feedback (which i got with a headphone) and no feedback.

I programmed this signal chain:

Modulator: Mic->Timbre1(audio)->Gate->compressor->Vocoder

and for the carrier:

Vocal waveform->compressor(to have same loadness for chords and single notes)->Vocoder

I also tested it without the gates and the compressors but this gave me even more feedbacks.

I did not test the formant shift parameter. May this one help to destroy the feedbacks?

For practical reasons the monitor speaker is standing on my side, not infront of me, but even moving the monitor did not solve the problem.

Just to be sure i tested the microphone without the vocoder and got a much louder transmission without feedbacks than with the vocoder.

Any help desperatly needed!!

Ciao, Dirk.

slammah2012 · Posted: Sun Nov 11, 2007 9:40 am Post subject:

Use a Dynamic microphone....Directional
try phase reversal on the mic or on the Monitor if feedback persists....
set your input level low....and sing or talk with a "loud" Voice about an inch away from the Capsule....do not cover up the mic as that will induce feedback.....

Unfortunately, when you play your vocoder loudly with close monitoring, it will pick itself up through its own mic without your voice activation...

You will need to sacrifice your monitor volume level on stage for the vocoding parts and use a loud voice and low input...
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Currently running, Hammond M3, Yamaha CS80 + MM6, Roland JX-3P + Mkb 1000 + Vk7 + D110, Alesis Quadrasynth plus, Haken Continuum fingerboard, Korg Radias + Lambda, Ensoniq SQ80, Waldorf Blofeld, Creamware Prodyssey + B4000, Use Audio Plugiator, Arp Axxe ....and some soft synths.

dr_boehm · Posted: Sun Nov 11, 2007 11:07 am Post subject:

Hi Slammah,

many thanks for your input, i will try that all. My problem is, that the vocoder picks itself up.

What monitor level will be realistic to get? Can i achieve a comfortable volume to hear the vocoder sound on a small stage standing directly besides drums and bass?

Many thanks,

Dirk.

dr_boehm · Posted: Sun Nov 11, 2007 11:56 am Post subject:

One more question: would a feedback destroyer help here?

Ciao, Dirk.

slammah2012 · Posted: Sun Nov 11, 2007 6:04 pm Post subject:

dr_boehm · Posted: Sun Nov 11, 2007 6:42 pm Post subject:

Hi slammah,

thanks a million. I will try that all. The md431 is too expensive for me. I will keep the beyerdynamic tg-x58 (was only 75 EUR).

I will also experment with a feedback destroyer too. There is a cheap one from behringer the BEHRINGER DSP110 SHARK that is at 85 EUR.

When im through i will write an extensive report here on the forum.

Again, many thanks!

Bye, Dirk.