HV-330 Choir Filter Roland VP-330

HV-330 Choir Filter + JH Triple Chorus Demo (Roland VP-330)

Uploaded by gstormelectro on Jul 9, 2011

"Quick demo of two effects processors:
- JH Triple Chorus
- HV-330 custom built 7-band choir filter similar to Roland VP-330"

Note: the videos below are no longer on YouTube. The FlakeStick channel they were on no longer exists. The descriptions will remain below for the info, and for archival records - a note that they once existed.


YouTube via FlakeStick | January 31, 2011 |


"It is a seven-band fixed filter set that is a clone of the VP-330 Choir circuit. It also features a 3-band Lo-Mid-Hi EQ circuit and post-EQ signal amplifier pot. The filter has two inputs: 1) combined 8' + 4' Male frequencies also known on the VP-330 as the "lower" two octaves of the keyboard split; and 2) "Upper" two octaves of the split which are the combined 8' Male + 4' Female frequencies. For this video the input signal is an analog synthesizer (off camera) with 1 oscillator set to a simple Sawtooth wave, with a small amount of LFO set to pitch for vibrato effect. Was recorded to macbook via Alesis multimix 8 w/ a small amount of reverb added."


FlakeStick | May 19, 2010 |

"This is a demo to two pieces of gear. The first is a JH Triple Chorus which is an effect clone of the Arp Solina String Ensemble modulation. Many thanks to Jurgen Haible for this design and for having the circuit boards produced. You've heard the Solina sound on many of your favorite songs: from Dream Weaver to the Cure's 'Just Like Heaven'. Also in this demo is the second effect, the real star of this show, a prototype I just finished designing and building over the past 3 months - the first version was nearly a complete failure but learned many lessons. I am calling it the HV-330 based on the Human Voice filter from the Roland VP-330: a dense choir sound most noted from the Blade Runner soundtrack by Vangelis. The VP-330 Choir emulations available on Rompler synthesizers haven't been satisfactory to me, they seem to lack that deep growling low frequencies and the dense complexity possible with a true analog circuit. I have sought out a VP-330 needing work for a good price, but they are nearly extinct and fetching prices well over $3000 USD now....so I have given up on that idea and made my very own! My HV-330 isn't without a couple of shortcomings still. 1) The original instrument has a compressor which further accentuates the frequencies required to make this choir sound. Without this compressor section, I am using the EQ section from the Triple Chorus to boost some frequencies and give the choir sound more authenticity. 2) This filter is reducing the signal strength quite a bit, so it will need a post-amplifier section to add gain to the signal leaving the output. Again, I'm using the Triple Chorus without any gain reduction (a boosted signal) and phantom power from my mixer to bring the levels back up but not without some of the noise floor being brought up along with it."

HV-330 Choir Filter Demo II Roland VP-330

FlakeStick | September 05, 2010 |

"This is a demo for a processor I recently finished. It is a clone of the Roland VP-330 Human Voice Choir sound. Since my last demo of this unit I have added a post-filter variable gain stage. I also incorporated a Boss CE-3 chorus circuit from a broken pedal I bought for cheap and was able to repair. I modded the depth of the CE-3 chorus effect as discussed many places on the internet. While the CE-3 chorus is not as robust as the quad-delay chorus of the original VP-330, it makes output stereo chorused signals in classic Roland/Boss fashion with some nice results. Sometime later I may attempt a clone of the quad-delay chorus. I find that the results of the choir filter are more authentic with a cheesy, buzzy input sound such as an el cheapo Yamaha PSR-12 I recently picked up for $10 which is used in the first half of the video. The second half of the demo, I pull out the Andromeda for a keyboard split upper/lower at C4 - each of which goes into two separate inputs of the processor and are combined. At the end of the video some reverb is mixed in using an Alesis Multimix-8."

HV-330 Choir Filter Demo III

FlakeStick | September 20, 2010 |

"This is a demo for a processor I revised."