| Predicate | Object |
|---|---|
| rdf:type | |
| rdf:value |
Devices designed to visualize audio waveforms, particularly the human voice. Vibrations were conducted through solid or liquid media, and either projected or photographed to view the result.@en
|
| dcterms:contributor | |
| dcterms:source | |
| dc:identifier |
152960
|
| dcterms:language |