It doesn't want for volume at idle and the sound is a dirty, gruff sort of warble with Subaru undertones, but it isn't tuneful. (evo.co.uk)
The algorithm can assess the couple's speech by breaking the recordings into acoustic features and using speech processing techniques, such as looking at the pitch intensity and warbles in voice that could indicate emotions. (lifehack.org)
Amazingly smooth, refined and flexible, it feels like an engine with more cylinders and greater capacity, pulling lustily and with a subtly sporty warble from less than 2000 revs and seldom needing a downshift from sixth on the motorway to pile on speed after being baulked by duelling juggernauts. (evo.co.uk)