Video to WAV: prepare audio for your editing project
Extracting WAV prepares an audio copy to bring into an editing project. Before using it, match its sample rate and channels to the project requirements and listen to the recording; source quality remains the starting point.
Know what the receiving project requires
WAV is a container that can hold different encodings and is commonly used with uncompressed PCM. Ask what encoding, sample rate and channel layout the project needs, not only which extension it accepts.
The current path produces 16-bit PCM at 44100 samples per second with two channels. If your project requires different settings, a WAV filename is not proof that those requirements are met.
References: MDN — Media containers and their tracks · MDN — Audio codec characteristics
More data does not recover the original recording
Converting compressed sound to PCM cannot restore information discarded before you received it. Likewise, putting a mono recording into a two-channel file does not automatically create new spatial information.
Keep the source and treat WAV as a working copy. Listen before adding effects so you can distinguish a source problem from a later edit.
Allow storage space and check the starting position
The output may be much larger than a compressed listening copy. Check available storage before making many copies, and do not repeatedly export in the belief that every new export improves quality.
Listen to the beginning and ending, then import the copy into its intended project. If it will be paired with video again, check synchronization; successful audio playback alone does not prove its position on an editing timeline.
Example: PCM size for a 45-second clip
At 44100 samples per second, 16 bits and two channels, each second contains 44100 × 16 × 2 ÷ 8 = 176400 audio-data bytes. A 45-second clip needs 7938000 bytes before the file header and other overhead.
That calculation explains size, not recording quality. If the project needs 48000 samples per second, the described output does not satisfy it. Choose a workflow that meets the requirement instead of renaming the file or assuming every WAV is equivalent.