Why Sample Rate Doesn't Matter in Software Plugins — And What Actually Does

Last time, we covered why IR data comes in three sample rate versions. That was all about hardware devices.

Software plugins are a completely different story. With plugins, you don't need to think about sample rate at all. Here's why.

The conversion happens exactly once — the moment you select the IR file. After that, playback and recording run with zero overhead. No pitch shift, no quality loss, no performance hit. Even on a slower machine, it makes no difference.

So it doesn't matter whether you pick the 44.1K, 48K, or 96K version. The result is identical.

What does matter is bit depth.

IR data spans a huge dynamic range — from the loud initial impulse all the way down to the nearly-silent reverb tail. How much of that range you can capture depends on bit depth.

With 16-bit, the fine detail in the reverb tail disappears into the noise floor. 24-bit gives you 144dB — more than enough.

32-bit integer and 32-bit float are often confused. Integer uses fixed-point arithmetic: 192dB of range divided into equal steps throughout. Float uses a 23-bit mantissa (effectively 24-bit precision), plus an 8-bit exponent that shifts the range to cover an enormous span. The precision at any given amplitude level is similar to 24-bit integer. Float is what DAWs use internally. Either way, for IR files the practical difference from 24-bit is essentially zero.

Bottom line for software plugins: sample rate doesn't matter. 24-bit does.

TacoSounds IR packs are all 96K 24-bit WAV. The 96K is there for hardware compatibility (see the previous post). The 24-bit is what preserves every detail of the reverb. One format that works in every setup.