SYSTEMS AND METHODS FOR CONTROLLING AUDIO VOLUME IN THE PROCESSOR OF A HIGH DEFINITION AUDIO CODEC
Systems and methods for controlling the audio volume of an audio signal in a High 'Definition Audio HDA codec having a programmable processor such as a DSP, wherein the codec receives digital audio signals and audio volume control verbs over an HDA bus, and the audio volume levels associated wi...
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| creator | GEPHARDT, DOUGLAS D KLAAS, JEFFREY M ZAHARIAS, ADAM CHIENG, DANIEL L HAND, LARRY E |
| description | Systems and methods for controlling the audio volume of an audio signal in a High 'Definition Audio HDA codec having a programmable processor such as a DSP, wherein the codec receives digital audio signals and audio volume control verbs over an HDA bus, and the audio volume levels associated with the audio volume control verbs are used by the processor in the generation pulse width modulated (PWM) output signals, thereby controlling the audio volume levels of the output signals. The processor may be configured to adjust non-volume parameters such as PWM deadtime, in addition to adjusting audio volume, based on the audio volume levels. The codec may be implemented in a, PC or other system that implements an HDA system that includes the HDA bus and HDA codec.
L'invention concerne des systèmes et des procédés de réglage du volume audio d'un signal audio dans un codec de Haute Définition Audio HDA ayant un processeur programmable tel qu'un DSP. Le codec reçoit les signaux audio numériques et les verbes de réglage du volume audio sur un bus HDA, et les niveaux de volume audio associés aux verbes de réglage du volume audio sont utilisés par le processeur dans les signaux de sortie à modulation de largeur d'impulsion (PWM) générés, afin de régler ainsi les niveaux de volume audio des signaux de sortie. Le processeur peut être configuré pour ajuster les paramètres hors volume tels que le temps mort PWM, en plus du réglage du volume audio, sur la base des niveaux du volume audio. Le codec peut être mis en oevre dans un PC ou un autre système qui utilise un système HDA comprenant le bus HDA et le codec HDA. |
| format | Patent |
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L'invention concerne des systèmes et des procédés de réglage du volume audio d'un signal audio dans un codec de Haute Définition Audio HDA ayant un processeur programmable tel qu'un DSP. Le codec reçoit les signaux audio numériques et les verbes de réglage du volume audio sur un bus HDA, et les niveaux de volume audio associés aux verbes de réglage du volume audio sont utilisés par le processeur dans les signaux de sortie à modulation de largeur d'impulsion (PWM) générés, afin de régler ainsi les niveaux de volume audio des signaux de sortie. Le processeur peut être configuré pour ajuster les paramètres hors volume tels que le temps mort PWM, en plus du réglage du volume audio, sur la base des niveaux du volume audio. Le codec peut être mis en oevre dans un PC ou un autre système qui utilise un système HDA comprenant le bus HDA et le codec HDA.</description><language>eng ; fre</language><subject>ACOUSTICS ; AMPLIFIERS ; BASIC ELECTRONIC CIRCUITRY ; CALCULATING ; COMPUTING ; CONTROL OF AMPLIFICATION ; COUNTING ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRIC DIGITAL DATA PROCESSING ; ELECTRICITY ; INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; MUSICAL INSTRUMENTS ; PHYSICS ; PICTORIAL COMMUNICATION, e.g. TELEVISION ; SPEECH ANALYSIS OR SYNTHESIS ; SPEECH OR AUDIO CODING OR DECODING ; SPEECH OR VOICE PROCESSING ; SPEECH RECOGNITION ; STEREOPHONIC SYSTEMS</subject><creationdate>2009</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=20090305&DB=EPODOC&CC=WO&NR=2009029916A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20090305&DB=EPODOC&CC=WO&NR=2009029916A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GEPHARDT, DOUGLAS D</creatorcontrib><creatorcontrib>KLAAS, JEFFREY M</creatorcontrib><creatorcontrib>ZAHARIAS, ADAM</creatorcontrib><creatorcontrib>CHIENG, DANIEL L</creatorcontrib><creatorcontrib>HAND, LARRY E</creatorcontrib><title>SYSTEMS AND METHODS FOR CONTROLLING AUDIO VOLUME IN THE PROCESSOR OF A HIGH DEFINITION AUDIO CODEC</title><description>Systems and methods for controlling the audio volume of an audio signal in a High 'Definition Audio HDA codec having a programmable processor such as a DSP, wherein the codec receives digital audio signals and audio volume control verbs over an HDA bus, and the audio volume levels associated with the audio volume control verbs are used by the processor in the generation pulse width modulated (PWM) output signals, thereby controlling the audio volume levels of the output signals. The processor may be configured to adjust non-volume parameters such as PWM deadtime, in addition to adjusting audio volume, based on the audio volume levels. The codec may be implemented in a, PC or other system that implements an HDA system that includes the HDA bus and HDA codec.
L'invention concerne des systèmes et des procédés de réglage du volume audio d'un signal audio dans un codec de Haute Définition Audio HDA ayant un processeur programmable tel qu'un DSP. Le codec reçoit les signaux audio numériques et les verbes de réglage du volume audio sur un bus HDA, et les niveaux de volume audio associés aux verbes de réglage du volume audio sont utilisés par le processeur dans les signaux de sortie à modulation de largeur d'impulsion (PWM) générés, afin de régler ainsi les niveaux de volume audio des signaux de sortie. Le processeur peut être configuré pour ajuster les paramètres hors volume tels que le temps mort PWM, en plus du réglage du volume audio, sur la base des niveaux du volume audio. 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The processor may be configured to adjust non-volume parameters such as PWM deadtime, in addition to adjusting audio volume, based on the audio volume levels. The codec may be implemented in a, PC or other system that implements an HDA system that includes the HDA bus and HDA codec.
L'invention concerne des systèmes et des procédés de réglage du volume audio d'un signal audio dans un codec de Haute Définition Audio HDA ayant un processeur programmable tel qu'un DSP. Le codec reçoit les signaux audio numériques et les verbes de réglage du volume audio sur un bus HDA, et les niveaux de volume audio associés aux verbes de réglage du volume audio sont utilisés par le processeur dans les signaux de sortie à modulation de largeur d'impulsion (PWM) générés, afin de régler ainsi les niveaux de volume audio des signaux de sortie. Le processeur peut être configuré pour ajuster les paramètres hors volume tels que le temps mort PWM, en plus du réglage du volume audio, sur la base des niveaux du volume audio. Le codec peut être mis en oevre dans un PC ou un autre système qui utilise un système HDA comprenant le bus HDA et le codec HDA.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACOUSTICS AMPLIFIERS BASIC ELECTRONIC CIRCUITRY CALCULATING COMPUTING CONTROL OF AMPLIFICATION COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER MUSICAL INSTRUMENTS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION STEREOPHONIC SYSTEMS |
| title | SYSTEMS AND METHODS FOR CONTROLLING AUDIO VOLUME IN THE PROCESSOR OF A HIGH DEFINITION AUDIO CODEC |
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