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Submitting high-quality audio is essential when applying for audiobook narration on ACX. Poor audio quality can lead to rejection or delays in approval. This article provides practical tips to identify and fix common audio artifacts before submitting your work.
Understanding Common Audio Artifacts
Audio artifacts are unwanted sounds or distortions that can occur during recording or editing. Recognizing these issues early helps ensure your audiobook meets ACX standards.
Types of Common Artifacts
- Clicks and Pops: Sudden noises caused by digital glitches or handling noise.
- Hiss and Background Noise: Constant ambient noise that distracts from narration.
- Distortion: Clipping or overdriven audio that sounds harsh or muffled.
- Dropouts: Brief silences or missing audio segments.
How to Identify Artifacts
Use audio editing software like Audacity, Adobe Audition, or Reaper to listen carefully to your recordings. Zoom in on waveform peaks to spot clicks and pops. Check for consistent background noise levels and listen for distortions or dropouts.
Steps to Fix Common Artifacts
Removing Clicks and Pops
Use the “Click Removal” or “De-click” tool in your editing software. Manually select and delete or reduce the noise spikes. Sometimes, zooming in on waveform peaks makes it easier to identify these issues.
Reducing Background Noise
Apply noise reduction plugins or effects. Capture a noise profile during silent sections and then reduce background noise across the entire recording. Be careful not to overdo it, as this can introduce a “watery” sound.
Fixing Distortion and Clipping
Lower the gain or volume levels during recording to prevent clipping. Use the “Normalize” or “Gain” adjustment to bring audio within acceptable levels. If distortion is severe, consider re-recording the affected sections.
Addressing Dropouts
If you notice dropouts, check your recording hardware and software settings. Re-record missing sections if necessary. In editing, use fade-ins or crossfades to smooth transitions and mask brief dropouts.
Final Tips for Submission
Before submitting, listen to the entire recording on different devices and in various environments to catch any remaining artifacts. Use quality headphones or speakers for accurate playback. Ensure your audio meets ACX specifications: a sample rate of 44.1 kHz, 16-bit depth, and consistent volume levels.
Following these steps will help you produce professional-quality audiobooks that meet ACX standards, increasing your chances of approval and success as a narrator.