SND
audio/basic
Magic Bytes
Offset: 0
2E 73 6E 64
The SND file format, also known as the Au file format, is an audio container introduced by Sun Microsystems for use on their NeXT and Sun workstations. It was primarily used for storing simple monaural audio data, often encoded with pulse-code modulation or µ-law algorithms, within early Unix systems. Although largely obsolete today in favor of more efficient compressed formats, this legacy container remains natively supported by many media players and is considered low risk.
Validation Code
How to validate .snd files in Python
Python
def is_snd(file_path: str) -> bool:
"""Check if file is a valid SND by magic bytes."""
signature = bytes([0x2E, 0x73, 0x6E, 0x64])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .snd files in Node.js
Node.js
function isSND(buffer: Buffer): boolean {
const signature = Buffer.from([0x2E, 0x73, 0x6E, 0x64]);
return buffer.subarray(0, 4).equals(signature);
}
Go
func IsSND(data []byte) bool {
signature := []byte{0x2E, 0x73, 0x6E, 0x64}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
GET
/api/v1/snd
curl https://filesignature.org/api/v1/snd