Siberian Cat Audio is releasing a new free instrument every Sunday as part of its Freebie Sunday series. Each release targets Audiomodern’s free Soundbox player and covers unusual source material — from bowed electric guitars to empty drum barrels and water glasses. Because every pack is free and lightweight, it is one of the easiest ways to grow a bank of quirky, cinematic textures without paying a cent. Below is a rundown of the current line-up.
Current Freebie Sunday Releases
Freebie Sunday #001 Water Glass
Water Glass is a Soundbox instrument built from a sampled water-filled drinking glass. It captures the bright attack and tonal ring of percussive hits and friction sounds against glass, which is useful as ambient topping or foley-style texture. The pack includes 20 samples, 1 instrument and 5 presets.
- Price: Free
- Requires: Audiomodern Soundbox (free player)
- Download: siberiancataudio.com
Freebie Sunday #002 Electric Bow
Electric Bow samples an electric guitar played with a violin bow, producing long, sustained tones suitable for cinematic sustain pads and shimmering drones. The sustain-heavy character makes it an easy substitute for a bowed string layer in scoring sessions. Includes 36 samples, 4 instruments and 10 presets.
- Price: Free
- Download: siberiancataudio.com
Freebie Sunday #003 Rotating Guitar
Rotating Guitar captures an acoustic guitar played with a rotating device, producing a natural tremolo-like wobble on sustained notes. It fits experimental, ambient and lo-fi contexts where a traditional guitar track would be too clean. 9 samples, 1 instrument and 8 presets.
- Price: Free
- Download: siberiancataudio.com
Freebie Sunday #004 Empty Barrel
Empty Barrel is a percussion instrument made from strikes and hand slaps on an empty drum barrel. The metallic resonance gives it an industrial edge, and it works well layered under kick drums, percussion rolls or transitional hits in hybrid cinematic cues.
- Price: Free
- Download: siberiancataudio.com
Freebie Sunday #005 Violin Pick
Violin Pick samples a violin played with a guitar plectrum instead of a bow, producing a short, plucky, folk-adjacent tone you will not find in a normal orchestral library. Pair it with a traditional pizzicato patch for doubled rhythmic motifs.
- Price: Free
- Download: siberiancataudio.com
Freebie Sunday #006 Whisper Beatbox
Whisper Beatbox turns breathy beatbox vocal sounds into a Soundbox instrument — a breathing, intimate percussion source that cuts well in sparse pop, hip-hop and ambient arrangements. Because the source is whisper-level, it layers under a main drum kit without masking the low end.
- Price: Free
- Download: siberiancataudio.com
Freebie Sunday #007 Steamboat Willy
Steamboat Willy is a themed sample pack inspired by early animation and vintage cartoon scoring. The character sits somewhere between a toy instrument and a retro foley source — useful for playful interludes, children’s content and quirky transitions.
- Price: Free
- Download: siberiancataudio.com
Freebie Sunday #008 Distortion Bass
Distortion Bass is a saturated, driven bass instrument designed to sit aggressively in rock, industrial and synth-heavy electronic tracks. Because it is pre-driven in the source, you can drop it on a simple MIDI line and get a weighty tone without stacking amp sims.
- Price: Free
- Download: siberiancataudio.com
How to Install
All Freebie Sunday releases run inside Audiomodern Soundbox, the free sample player Siberian Cat Audio builds their packs around. Download the Soundbox plugin from Audiomodern’s website, install it as a VST3/AU/AAX in your DAW, then drag each Freebie Sunday .soundbox library into the player or the Soundbox user-libraries folder. Updates arrive weekly, so it is worth bookmarking Siberian Cat Audio’s site to catch new instalments.

