We were so grateful to have Otis on board for our first-ever virtual event this past year. He was able to quickly adapt to the changing event climate, and his enthusiasm was so encouraging! Our event looked much more professional than it would have if we'd attempted to stream by ourselves, and his attention to detail meant that the sound and video quality impressed our virtual guests. It was great to have such a positive and knowledgeable person on our side!

—Lauren S, Peninsula Humane Society & SPCA

Otis, I am emailing you on how grateful I am for having your services provided to me for the event on Dec 17, 2020. The zoom conference with over 500 participants went off without a hitch. It was perfect! You had the equipment and the knowledge. I couldn't have done it without you considering all the moving parts, and you got the sound just right for my band's zoom broadcast - it was perfect.

—Joel N, Joel Nelson Productions, Los Gatos

Because of health restrictions this year, Second Harvest Food Bank of Santa Cruz County held its first, on-line Holiday Food and Fund Drive kick-off event. The company needed an effective alternative for energizing the numerous fund drive coordinators and contributors within organizations across our county. Contracted as videographer and post-production editor, Otis Coen, of Hear the Call Music, immediately grasped the importance of and concept for the event, setting the stage for raising 4.5 million meals over the holiday period. Otis quickly dove in, arranged, shot and edited the engaging, creative Holiday Food and Fund Drive Kick video that was required. The food bank received lots of thumbs up and positive reviews from food bank administration, board members, sponsors, and participating community members. It provided the necessary impact that helped propel our fund drive to overwhelming success. Mission accomplished Otis!

—Jan Kamman, SHFB Corporate & Community Relations Director

Otis helped save the conference! I shudder to think what a disaster it could have been. I wouldn’t have known any of the technical and their AV guy was in the same boat floating with me!! Thanks to Otis for picking up the ball and running with it for me…. It was definitely what makes a successful meeting and great team work despite the 11th hour change.

—Joannie, Crowne Plaza Hotel

Otis Coen stepped in to help my community navigate through our High Holy Days season, with its full and complicated series of events during a very troubled time. This required coordinating multiple platforms, several cameras, numerous leaders and participants, and a very "foreign" set of rituals and vocabulary. He got us through with such skill, grace and creativity, that these were among our best services ever, and we cannot thank him enough. But perhaps most important of all, was Otis's enormously caring heart. It truly made all the difference.

—R' Eli, Chadeish Yameinu Jewish Renewal, Santa Cruz

The City of Scotts Valley Parks and Recreation has worked closely with Otis in its annual 4th of July celebration which brings in over 10,000 spectators. Otis is easy to work with and takes pride in all projects that we ask him to perform. Otis provides excellent equipment, timely installation, and exemplary customer relations. If you should need further information, please do not hesitate to contact me at (831) 438-3251.

—Kristian A, City of Scotts Valley Recreation Division

On behalf of Hicklebees’s Bookstore and the San Jose Public Library Foundation, I am writing to thank you for the superior job from your firm led by – Otis Coen – did for the children’s literacy events with the author Dav Pilkey on October 19, 2019. The evening was a great success with over 1500 children and adults enjoying Dav’s dynamic presentation. While there was a bit of stress and drama behind the scenes in other areas, there were NO problems around the AV equipment and presentation. The set up was perfect – the production was flawless! We not only got great service and advise on how the system should be set up but Otis was absolutely great to work with.

—Mimi B, Hicklebee’s Bookstore San Jose

Kudo to Otis and the entire AV team. The sheer expanse of this year’s grounds was a definite challenge, but there was true “surround sound” with every attendee being able to easily follow what was happening throughout the afternoon. Thank you once again for your stellar work, cheers until next year my good man! If not sooner.

—Caterina, Drummond & Peterson Events LLC

I have known Otis since coming to Santa Cruz in 2007. Every single interaction with him has been professional and enjoyable. He is the consummate production director, understands sound, lights, and performance form a variety of perspectives. Since Otis has been in the Santa Cruz County area all of his life, he knows many community members who can vouch for his skill and personality. He is also known for his promotional abilities and has facilitated this skill for many community performers, organizations, and events.


Tsunami band had a great time yesterday at Fiesta De Artes! Thanks for having us back. The sound was the BEST ever! Shout out to Otis Coen! Great guy and he really delivered. It makes a difference to the band members when we can hear ourselves. I think the performance goes up exponentially. And when I stepped out front, the sound was even better!

—Cynthia, "Tsunami Band"

On behalf of the Silicon Valley/Central Cost Region of the American Cancer Society, I would like to acknowledge the outstanding leadership of Otis Coen of Hear the Call Music who does all the sound/music for several Relay for Life’s events. His efforts of guiding and advising committee volunteers about logistics and equipment required surpasses our expectations. His dedication and hard work to the mission of the American Cancer Society is very much appreciated.

—Rosie M, Relay for Life Manager

Otis contacts the bands and singers for our Christmas toy drive every year. Otis sets up the audio equipment and directs the music for the day. He does an excellent job of this. His passion for music and for the children who will receive the donated toys is evident.

—Ron R, Fire Chief, Felton Fire Department

Thank you for the amazing job you did streaming our live event on Facebook. The multi-camera video and the quality of the sound made it one of our best performances ever. Otis was highly professional from beginning to end, and we all feel it was the best investment we’ve ever made in promoting our band. We highly recommend their services.