What is Inter-Sample Peak?

Inter-Sample Peak is an audio phenomenon where the true signal level exceeds 0 dBFS between digital samples, even if the recorded sample values themselves do not clip. It is known for causing distortion during playback or conversion.

The concept typically occurs during digital-to-analog conversion, where reconstructed waveforms can rise above the maximum level represented by individual samples.

Inter-Sample Peak emphasizes the difference between sample-based measurements and the actual continuous audio signal, highlighting potential hidden clipping.

This issue is especially important in mastering, where limiting and compression can push signals close to 0 dBFS, increasing the risk of inter-sample distortion.

Today, Inter-Sample Peaks are managed using true peak metering and careful headroom practices, ensuring audio remains clean across different playback systems and formats.