Free Universal Audio Alternatives - Just As Good? Better?

Summary

Dawn Shift Audio reviews Riverflux Audio’s 16 free plugins, which are inspired by popular Universal Audio (UAD) processors. The host compares several Riverflux Audio (RFA) plugins with their UAD counterparts using Plugin Doctor analysis and listening tests.

Plugin comparisons

• Ampex ATR-102 tape emulation: After level matching, Plugin Doctor shows a response curve very close to UAD’s, with broadly similar harmonic behavior. The host notes that the UAD version may produce somewhat more harmonics. Its NAB/CCIR emphasis setting also appears to affect the low end, while the equivalent RFA control had no apparent audible or visible effect in the test.
• Distressor-style compressor: The RFA and UAD versions sound very similar on drums. The host uses this type of compressor for parallel compression and notes that UAD’s lack of auto-gain makes level matching less convenient.
• Pultec-style EQ (EQ1A): The host demonstrates using low-frequency boost and attenuation to shape the bass, followed by high-frequency boost. After compensating for UAD’s level increase, the two are difficult to distinguish.
• SSL 4000E channel strip: Tested on drums, its EQ and compressor sound very close to the UAD/SSL version. This was the host’s most impressive plugin in the roundup.
• Fairchild 670-style compressor: The two versions are nearly indistinguishable to the host. UAD may sound slightly more grabby or snappy, though the host suggests that settings could explain the difference.
• Studer A800-style tape emulation: The results are similarly close, with subtle differences in saturation or character rather than an apparent difference in overall quality.

Overall, the host is impressed by the sound and presentation of the free plugins while acknowledging that small differences may remain. The video does not cover all 16 plugins, and viewers are encouraged to try them themselves. The host also suggests donating to Riverflux Audio if users find the plugins valuable.

Main speakers and sources

• Main speaker: The host of Dawn Shift Audio
• Products and tools discussed: Riverflux Audio plugins, Universal Audio/UAD plugins, and Plugin Doctor