| C | ↘ | F | lib/wavefile-parser.js got worse | 
| C | ↘ | F | WaveFileParser got worse | 
| ⇢ | A | WaveFileParser.updateDataType added | |
| ⇢ | A | WaveFileParser.bitDepthFromFmt_ added | |
| ⇢ | A | WaveFileParser.fromBuffer added | |
| A | ↛ | WaveFileReader.bitDepthFromFmt_ removed | |
| A | ↛ | WaveFileReader.updateDataType removed |