PER 1.7.9 tightens the blind-listening workflow for Mac and Windows, adds a dedicated Listening View, introduces portable and link-only project formats, and gives the app a new visual identity.
Listening View hides controls and expands the comparison player to a full workspace so the listener can focus on audio.
Two project formats: an embedded-audio.perproj for sharing complete tests and a lightweight link-only file for local work that preserves settings and waveform data.
PER loudness-matches files and hides file identities so comparisons are based on listening, not visible metadata or level differences.
# What PER does PER is a free application for blind listening tests on macOS and Windows. It's designed for comparing mixes, masters, and processing chains while removing visual and level-based biases. Before a test starts, PER loudness-matches the audio files and hides filenames and plugin-chain information so the listener chooses by sound alone.
# What's new in v1.7.9 The headline changes in 1.7.9 focus on workflow and project portability. The most visible addition is Listening View, which removes the project panel and extra controls, allowing the comparison player to use the full workspace. That change is aimed at making set-up quick and then getting the interface out of the way during critical listening.
When opening a link-only project, PER validates linked audio by checking file path, file size, and file fingerprint so the app can confirm that the original files match the expected material.
# Visual and usability tweaks PER gained a new logo that visually ties to the app's purpose: the icon uses the same waveform shown in two different versions to reflect comparing versions of the same audio. The update also fixes interface layout issues: long project names and Windows paths now wrap inside the status panel instead of extending beyond the interface. The release includes general cleanup and various internal version updates.
# Licensing and availability
# Who this is for Anyone who compares mixes or masters and wants a faster, less biased way to run blind tests. The embedded-project format suits sharing a complete test with someone who needs to reproduce the exact comparison. The link-only format fits workflows where audio files already live on the same computer and you want smaller project files while keeping test metadata intact.
# Extras A video demonstrating PER 1.7.9 is available on YouTube. The update follows prior PER improvements aimed at making blind testing quicker to set up so it actually gets done.
# Bottom line PER 1.7.9 tightens the listening workflow with a focused Listening View, gives you a choice between portable and link-only project formats, and introduces a clear visual identity. The core blind-test features—loudness matching and hidden file identities—remain central. The app is free but tied to Noisebud's Patreon follower check for continued use.
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