Audio Restoration Services: Robert Duffy, Audio Engineer

Samples

Standard Noise Reduction

This is a 20 second before and after sample restoration clip of a typical click and pop repair using the Standard NR service. The 8 second music portion is played with the pop, followed by a 2 second pause, and then the same musical portion with the click repaired:

Extensive Noise Reduction

A noisy 14 second audio clip showing the benefits of using the Extensive NR. The 6 second speech is heard twice, before and after using the NR processing:

78rpm Restoration

This sound clip was restored from a 78 rpm record. This is a before and after Extensive NR clip of 78 rpm disc restoration. A great deal of the 78 rpm surface noise has been removed without substantially altering the recorded sound:

Cardboard Record Restoration-Extensive NR Service

This is another before and after noise reduction sample from an actual World War II recording made by a US soldier. The noise level on this type of disc is generally high.

Before and After Restoration:
mrec.mp3 (128KB)

Cassette Transfer

This is a sample of a cassette transfer, ready to transfer to CD-r as a wave or mp3 file:

Audio/Voice Clarification-Extensive NR Sample

This is a before and after sample of how some some types of audio can be noise processed and the audio clarified with special audio tools: