DETECTING IF AN AUDIO STREAM IS MONOPHONIC OR POLYPHONIC
The disclosed technology provides for determining whether an audio stream is monophonic or polyphonic. An exemplary method includes analyzing and detecting frequency peaks in a portion of the audio stream. The method includes determining whether the portion of the audio stream is monophonic, by dete...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Format: | Patent |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | ADAM CHRISTOF GEHRING STEFFEN |
| description | The disclosed technology provides for determining whether an audio stream is monophonic or polyphonic. An exemplary method includes analyzing and detecting frequency peaks in a portion of the audio stream. The method includes determining whether the portion of the audio stream is monophonic, by determining if all detected peaks are integer intervals of a lowest detected frequency peak. The method then includes determining that the audio stream portion is monophonic if a greatest common devisor frequency exists between a threshold frequency and the lowest detected frequency peak, wherein each detected peak is an integer multiple of the greatest common devisor frequency. The method includes determining that the portion of the audio stream is polyphonic if any one of the detected peaks is not substantially an integer multiple of the lowest detected frequency and if no greatest common devisor frequency exists between the threshold frequency and the lowest detected frequency peak. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US2011307084A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US2011307084A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US2011307084A13</originalsourceid><addsrcrecordid>eNrjZLBwcQ1xdQ7x9HNX8HRTcPRTcAx18fRXCA4JcnX0VfAMVvD19_MP8PD383RW8A9SCPD3iYTweBhY0xJzilN5oTQ3g7Kba4izh25qQX58anFBYnJqXmpJfGiwkYGhobGBuYGFiaOhMXGqAOuWKTY</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>DETECTING IF AN AUDIO STREAM IS MONOPHONIC OR POLYPHONIC</title><source>esp@cenet</source><creator>ADAM CHRISTOF ; GEHRING STEFFEN</creator><creatorcontrib>ADAM CHRISTOF ; GEHRING STEFFEN</creatorcontrib><description>The disclosed technology provides for determining whether an audio stream is monophonic or polyphonic. An exemplary method includes analyzing and detecting frequency peaks in a portion of the audio stream. The method includes determining whether the portion of the audio stream is monophonic, by determining if all detected peaks are integer intervals of a lowest detected frequency peak. The method then includes determining that the audio stream portion is monophonic if a greatest common devisor frequency exists between a threshold frequency and the lowest detected frequency peak, wherein each detected peak is an integer multiple of the greatest common devisor frequency. The method includes determining that the portion of the audio stream is polyphonic if any one of the detected peaks is not substantially an integer multiple of the lowest detected frequency and if no greatest common devisor frequency exists between the threshold frequency and the lowest detected frequency peak.</description><language>eng</language><subject>ACOUSTICS ; CALCULATING ; COMPUTING ; COUNTING ; ELECTRIC DIGITAL DATA PROCESSING ; ELECTROPHONIC MUSICAL INSTRUMENTS ; MUSICAL INSTRUMENTS ; PHYSICS</subject><creationdate>2011</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20111215&DB=EPODOC&CC=US&NR=2011307084A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20111215&DB=EPODOC&CC=US&NR=2011307084A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ADAM CHRISTOF</creatorcontrib><creatorcontrib>GEHRING STEFFEN</creatorcontrib><title>DETECTING IF AN AUDIO STREAM IS MONOPHONIC OR POLYPHONIC</title><description>The disclosed technology provides for determining whether an audio stream is monophonic or polyphonic. An exemplary method includes analyzing and detecting frequency peaks in a portion of the audio stream. The method includes determining whether the portion of the audio stream is monophonic, by determining if all detected peaks are integer intervals of a lowest detected frequency peak. The method then includes determining that the audio stream portion is monophonic if a greatest common devisor frequency exists between a threshold frequency and the lowest detected frequency peak, wherein each detected peak is an integer multiple of the greatest common devisor frequency. The method includes determining that the portion of the audio stream is polyphonic if any one of the detected peaks is not substantially an integer multiple of the lowest detected frequency and if no greatest common devisor frequency exists between the threshold frequency and the lowest detected frequency peak.</description><subject>ACOUSTICS</subject><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>COUNTING</subject><subject>ELECTRIC DIGITAL DATA PROCESSING</subject><subject>ELECTROPHONIC MUSICAL INSTRUMENTS</subject><subject>MUSICAL INSTRUMENTS</subject><subject>PHYSICS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2011</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLBwcQ1xdQ7x9HNX8HRTcPRTcAx18fRXCA4JcnX0VfAMVvD19_MP8PD383RW8A9SCPD3iYTweBhY0xJzilN5oTQ3g7Kba4izh25qQX58anFBYnJqXmpJfGiwkYGhobGBuYGFiaOhMXGqAOuWKTY</recordid><startdate>20111215</startdate><enddate>20111215</enddate><creator>ADAM CHRISTOF</creator><creator>GEHRING STEFFEN</creator><scope>EVB</scope></search><sort><creationdate>20111215</creationdate><title>DETECTING IF AN AUDIO STREAM IS MONOPHONIC OR POLYPHONIC</title><author>ADAM CHRISTOF ; GEHRING STEFFEN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2011307084A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2011</creationdate><topic>ACOUSTICS</topic><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>COUNTING</topic><topic>ELECTRIC DIGITAL DATA PROCESSING</topic><topic>ELECTROPHONIC MUSICAL INSTRUMENTS</topic><topic>MUSICAL INSTRUMENTS</topic><topic>PHYSICS</topic><toplevel>online_resources</toplevel><creatorcontrib>ADAM CHRISTOF</creatorcontrib><creatorcontrib>GEHRING STEFFEN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ADAM CHRISTOF</au><au>GEHRING STEFFEN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DETECTING IF AN AUDIO STREAM IS MONOPHONIC OR POLYPHONIC</title><date>2011-12-15</date><risdate>2011</risdate><abstract>The disclosed technology provides for determining whether an audio stream is monophonic or polyphonic. An exemplary method includes analyzing and detecting frequency peaks in a portion of the audio stream. The method includes determining whether the portion of the audio stream is monophonic, by determining if all detected peaks are integer intervals of a lowest detected frequency peak. The method then includes determining that the audio stream portion is monophonic if a greatest common devisor frequency exists between a threshold frequency and the lowest detected frequency peak, wherein each detected peak is an integer multiple of the greatest common devisor frequency. The method includes determining that the portion of the audio stream is polyphonic if any one of the detected peaks is not substantially an integer multiple of the lowest detected frequency and if no greatest common devisor frequency exists between the threshold frequency and the lowest detected frequency peak.</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | eng |
| recordid | cdi_epo_espacenet_US2011307084A1 |
| source | esp@cenet |
| subjects | ACOUSTICS CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING ELECTROPHONIC MUSICAL INSTRUMENTS MUSICAL INSTRUMENTS PHYSICS |
| title | DETECTING IF AN AUDIO STREAM IS MONOPHONIC OR POLYPHONIC |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-12T01%3A41%3A02IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=ADAM%20CHRISTOF&rft.date=2011-12-15&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EUS2011307084A1%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |