Supported sample rates
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Deprecated:Source is picky; it probably only supports reading from sound files at 44100 Hz, 22050 Hz, and 11025 Hz.It might support 24000 Hz files, as that's what voice chat uses, but that's unlikely.
Note:Source 2 is significantly less picky, and should support any sample rate that the MP3 format officially supports.Source complained when I tried to feed it a 32 KHz ADPCM file, so I decided to document my findings.
| 16-bit WAV | 8-bit WAV | MS_ADPCM WAV | MP3 | Quality | Notes | |
|---|---|---|---|---|---|---|
| 8000 Hz | ? | ? | ? | ? | Telephone Quality | |
| 11025 Hz | ? | ✔️ | ? | ? | 1/4 CD Quality | used by Half-Life 1 sound effects |
| 12000 Hz | ? | ? | ? | ? | 1/4 DVD Quality | |
| 16000 Hz | ? | ? | ? | ? | 1/3 DVD Quality | |
| 22050 Hz | ✔️ | ✔️ | ✔️ | ? | 1/2 CD Quality | Max sample rate for GoldSrc WAV files |
| 24000 Hz | ? | ? | ? | ? | ½ DVD Quality | Default voice chat sample rate for Source 1 |
| 32000 Hz | ? | ? | X | ? | 2/3 DVD quality | Nintendo's favorite maximum sample rate most people can discern |
| 44100 Hz | ✔️ | ? | ✔️ | ✔️ | CD Quality | max sample rate for Source 1 |
| 48000 Hz | X | X | X | X | DVD Quality | not supported by vanilla Source 1 |
