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Sproom DSP
- Description
Sproom, half space half room.
It´s based on the FV-1 DSP IC by Spin Semiconductor which got popular with some famous guitar pedal effects and is covering all types of quality reverbs, delays, chorus, flangers, tremolos, or combinations of them.
It´s stereo and operates with 6 MIPS at Fs=48KHz, or in other words excellent audio quality with a clean dry / wet path to adjust the amount of effecting.
It offers 3 banks with each having 8 different algorithms. In total 24 effects.
The input is normalized to R. Means with just plugging a mono source into the left input, the output becomes stereo.
Each algorithm can be controlled with one of the 3 potentiometers, or by conrol voltage.
Capable of -5 / +5V with the dedicated pot at around center position, or 0-10V with the pot fully closed. In other words, the pot acts as offset.
LED indication for clipping and CV ins.
The internal effects are tied to the IC and fixed. Bank 2 & 3 or EXT1 & EXT2 can be exchanged with EEPROMS on the backside.
8HP
Depth: 42mm
+12V 92mA
-12V 23mA
Effects:
| Bank | Effect Type | Pot1 | Pot2 | Pot3 |
| INT1 | Chorus – Reverb | Verb Mix | Chorus Rate | Chorus Mix |
| INT2 | Flange – Reverb | Verb Mix | Flange Rate | Flange Mix |
| INT3 | Tremolo – Reverb | Verb Mix | Tremolo Rate | Tremolo Mix |
| INT4 | Pitch Shift | +/-4 semitones | ||
| INT5 | Pitch – Echo | +/-4 semitones | Echo Delay | Eco Mix |
| INT6 | Test | xx | xx | xx |
| INT7 | Reverb | Size | HP Filter | LP Filter |
| INT8 | Reverb | Size | HP Filter | LP Filter |
| EXT 1.1 | Stereo Ring Modulator | Blend | Carrier Offset | Chorus |
| EXT 1.2 | Reverb Reverse | Pre-Delay | Decay | Damping |
| EXT 1.3 | Tape Delay 1 Head Ping Pong | Rate | Feedback | Damping |
| EXT 1.4 | Tape Delay 2 Head Ping Pong | Rate | Feedback | Damping |
| EXT 1.5 | Tape Delay 2 Head Ping Pong + Reverb | Rate | Feedback | Damping |
| EXT 1.6 | Digifuzzer / Bitcrusher | Sample Rate | Bit Rate | Level |
| EXT 1.7 | Shimmer Reverb | Damping | Shimmer Level | Decay |
| EXt 1.8 | Triple Cascaded Delay | Rate | Rate | Rate |
| EXT 2.1 | Reverb Hall | Size | Delay | Damping |
| EXT 2.2 | Reverb Large | Size | Delay | Damping |
| EXT 2.3 | Reverb Small | Size | Delay | Damping |
| EXT 2.4 | Reverb Plate | Size | Delay | Damping |
| EXT 2.5 | Reverb Gated | Size | Delay | Damping |
| EXT 2.6 | Delay | Feedback | Tempo | Damping |
| EXT 2.7 | Flanger | Delay | Width | Rate |
| EXT 2.8 | Chorus | Amount | Width | Rate |
The process of flashing EEPROMs can be discovered here on GitHub
A list of available algorithms can be found here at Spin
