issues . please help improve it or discuss these issues on the talk page . learn how and when to remove these template messages a major contributor to this article appears to have a close connection with its subject . it may require cleanup to comply with wikipedia s content policies particularly neutral point of view . please discuss further on the talk page . september 2010 learn how and when to remove this template message the topic of this article may not meet wikipedia s notability guidelines for companies and organizations . please help to establish notability by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond its mere trivial mention . if notability can not be established the article is likely to be merged redirected or deleted . find sources echo digital audio news newspapers books scholar jstor free images september 2010 learn how and when to remove this template message learn how and when to remove this template message echo digital audio founded 1978 headquarters santa barbara ca usa products multimedia website www.echoaudio.com echo digital audio designs and manufactures various digital audio recording interfaces midi interfaces audio test equipment custom professional audio products and audio software . the company is located in santa barbara ca echo digital audio formerly street electronics introduced their first digital audio interface echo ii for the apple ii in 1978 to provide speech output for the blind educational and handicapped markets . in the 1990s echo went on to design and manufacture one of the first multi track audio recording product for the pc markets . echo has licensed its dsp based audio technology to several leading audio and semiconductor companies including gibson guitar analog devices hp sony motorola peavey mackie carvin dolby laboratories akm et al. references edit 1 2 http apple2history.org history ah13 http www.alsa project.org main index.php matrix vendor echo corporation external links edit echo digital audio retrieved from https en.wikipedia.org w index.php title echo digital audio & oldid 697192744 categories companies established in 1980electronics companies of the united stateshidden categories wikipedia articles with possible conflicts of interest from september 2010articles with topics of unclear notability from september 2010all articles with topics of unclear notability navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version in other projects wikimedia commons languages add links this page was last modified on 28 december 2015 at 22 12 . text is available under the creative commons attribution sharealike license ; additional terms may apply . by using this site you agree to the terms of use and privacy policy . wikipedia is a registered trademark of the wikimedia foundation inc. a non profit organization . privacy policy about wikipedia disclaimers contact wikipedia developers cookie statement mobile view