ISCC - Audio-Code#
A similarity preserving hash for audio content (soft hash).
Creates an ISCC object that provides an iscc-field with an Audio-Code and a
duration-field.
The Content-Code Audio is generated from a Chromaprint fingerprint provided as a vector of 32-bit signed integers. The iscc-sdk uses fpcalc to extract Chromaprint vectors with the following command line parameters:
$ fpcalc -raw -json -signed -length 0 myaudiofile.mp3
gen_audio_code(cv, bits = ic.core_opts.audio_bits)
#
Create an ISCC Content-Code Audio with the latest standard algorithm.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
cv |
Iterable[int]
|
Chromaprint vector |
required |
bits |
int
|
Bit-length resulting Content-Code Audio (multiple of 64) |
ic.core_opts.audio_bits
|
Returns:
| Type | Description |
|---|---|
dict
|
ISCC object with Content-Code Audio |
gen_audio_code_v0(cv, bits = ic.core_opts.audio_bits)
#
Create an ISCC Content-Code Audio with algorithm v0.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
cv |
Iterable[int]
|
Chromaprint vector |
required |
bits |
int
|
Bit-length resulting Content-Code Audio (multiple of 64) |
ic.core_opts.audio_bits
|
Returns:
| Type | Description |
|---|---|
dict
|
ISCC object with Content-Code Audio |
soft_hash_audio_v0(cv, bits = ic.core_opts.audio_bits)
#
Create audio similarity hash from a chromaprint vector.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
cv |
Iterable[int]
|
Chromaprint vector |
required |
bits |
int
|
Bit-length resulting similarity hash (multiple of 32) |
ic.core_opts.audio_bits
|
Returns:
| Type | Description |
|---|---|
bytes
|
Audio-Hash digest |