A True Peak Calculator can help musicians, producers, mastering engineers, and home-studio users understand the difference between sample peak levels and true peak levels. Unlike a standard digital peak meter, true-peak measurement attempts to account for peaks that can occur between individual digital samples when the audio waveform is reconstructed.

This is important because a recording can appear to remain below 0 dBFS on a sample peak meter while still producing inter-sample peaks above that level. These peaks can potentially contribute to clipping or distortion during digital-to-analog conversion or other processing.

True peak is commonly expressed in dBTP (decibels true peak). A true-peak limiter can help control these peaks while leaving an appropriate amount of headroom in the final master.

The relationship between sample peak and true peak isn't a fixed conversion. The actual difference depends on the waveform, sample rate, reconstruction filter, and measurement method. That's why this calculator provides an estimate rather than a replacement for an actual true-peak meter.

Tip: When preparing a master for digital distribution, don't assume that staying below 0 dBFS on a regular peak meter guarantees that there are no inter-sample peaks. Check the finished master with a true-peak meter and leave an appropriate amount of headroom for your intended delivery format.