Perception of vocoded speech in domestic dogs
Abstract Humans have an impressive ability to comprehend signal-degraded speech; however, the extent to which comprehension of degraded speech relies on human-specific features of speech perception vs. more general cognitive processes is unknown. Since dogs live alongside humans and regularly hear s...
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| Format: | Article |
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Springer
2024-04-01
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| Series: | Animal Cognition |
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| Online Access: | https://doi.org/10.1007/s10071-024-01869-3 |
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| author | Amritha Mallikarjun Emily Shroads Rochelle S. Newman |
| author_facet | Amritha Mallikarjun Emily Shroads Rochelle S. Newman |
| author_sort | Amritha Mallikarjun |
| collection | DOAJ |
| description | Abstract Humans have an impressive ability to comprehend signal-degraded speech; however, the extent to which comprehension of degraded speech relies on human-specific features of speech perception vs. more general cognitive processes is unknown. Since dogs live alongside humans and regularly hear speech, they can be used as a model to differentiate between these possibilities. One often-studied type of degraded speech is noise-vocoded speech (sometimes thought of as cochlear-implant-simulation speech). Noise-vocoded speech is made by dividing the speech signal into frequency bands (channels), identifying the amplitude envelope of each individual band, and then using these envelopes to modulate bands of noise centered over the same frequency regions – the result is a signal with preserved temporal cues, but vastly reduced frequency information. Here, we tested dogs’ recognition of familiar words produced in 16-channel vocoded speech. In the first study, dogs heard their names and unfamiliar dogs’ names (foils) in vocoded speech as well as natural speech. In the second study, dogs heard 16-channel vocoded speech only. Dogs listened longer to their vocoded name than vocoded foils in both experiments, showing that they can comprehend a 16-channel vocoded version of their name without prior exposure to vocoded speech, and without immediate exposure to the natural-speech version of their name. Dogs’ name recognition in the second study was mediated by the number of phonemes in the dogs’ name, suggesting that phonological context plays a role in degraded speech comprehension. |
| format | Article |
| id | doaj-art-b07273cbe1bc407697816c8dff5ec994 |
| institution | Kabale University |
| issn | 1435-9456 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Springer |
| record_format | Article |
| series | Animal Cognition |
| spelling | doaj-art-b07273cbe1bc407697816c8dff5ec9942025-01-26T12:43:44ZengSpringerAnimal Cognition1435-94562024-04-0127111310.1007/s10071-024-01869-3Perception of vocoded speech in domestic dogsAmritha Mallikarjun0Emily Shroads1Rochelle S. Newman2Penn Vet Working Dog Center, University of Pennsylvania School of Veterinary MedicineDepartment of Hearing and Speech Sciences, University of MarylandDepartment of Hearing and Speech Sciences, University of MarylandAbstract Humans have an impressive ability to comprehend signal-degraded speech; however, the extent to which comprehension of degraded speech relies on human-specific features of speech perception vs. more general cognitive processes is unknown. Since dogs live alongside humans and regularly hear speech, they can be used as a model to differentiate between these possibilities. One often-studied type of degraded speech is noise-vocoded speech (sometimes thought of as cochlear-implant-simulation speech). Noise-vocoded speech is made by dividing the speech signal into frequency bands (channels), identifying the amplitude envelope of each individual band, and then using these envelopes to modulate bands of noise centered over the same frequency regions – the result is a signal with preserved temporal cues, but vastly reduced frequency information. Here, we tested dogs’ recognition of familiar words produced in 16-channel vocoded speech. In the first study, dogs heard their names and unfamiliar dogs’ names (foils) in vocoded speech as well as natural speech. In the second study, dogs heard 16-channel vocoded speech only. Dogs listened longer to their vocoded name than vocoded foils in both experiments, showing that they can comprehend a 16-channel vocoded version of their name without prior exposure to vocoded speech, and without immediate exposure to the natural-speech version of their name. Dogs’ name recognition in the second study was mediated by the number of phonemes in the dogs’ name, suggesting that phonological context plays a role in degraded speech comprehension.https://doi.org/10.1007/s10071-024-01869-3Canine speech perceptionDegraded speech perceptionVocoded speech |
| spellingShingle | Amritha Mallikarjun Emily Shroads Rochelle S. Newman Perception of vocoded speech in domestic dogs Animal Cognition Canine speech perception Degraded speech perception Vocoded speech |
| title | Perception of vocoded speech in domestic dogs |
| title_full | Perception of vocoded speech in domestic dogs |
| title_fullStr | Perception of vocoded speech in domestic dogs |
| title_full_unstemmed | Perception of vocoded speech in domestic dogs |
| title_short | Perception of vocoded speech in domestic dogs |
| title_sort | perception of vocoded speech in domestic dogs |
| topic | Canine speech perception Degraded speech perception Vocoded speech |
| url | https://doi.org/10.1007/s10071-024-01869-3 |
| work_keys_str_mv | AT amrithamallikarjun perceptionofvocodedspeechindomesticdogs AT emilyshroads perceptionofvocodedspeechindomesticdogs AT rochellesnewman perceptionofvocodedspeechindomesticdogs |