Matrix
GSM Wireless Module - Audio Quality
GSM Audio Quality
This audio file compares a hand held phone on GSM service with a Matrix incorporating the GSM Module.
GSM User Experiences
The Matrix GSM Module is now in use all around the globe. The new Matrix module includes a GSM wireless phone with a new algorithm optimized for GSM data rates (9600 or lower baud) to deliver 7 kHz voice. For specs and information on the GSM Module, click here
As the adventure progresses, we will add Audio Samples, Comments and Photos of this revolutionary technology. Please share your experiences by email to info@comrex.com
Audio Files
Tester: 2-TEN FM, UK
Audio and picture provided by GWR Groups Black Thunder in the UK courtesy of Vortex Communications. Audio File
Beta Tester: WBT, Charlotte, NC
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Thanksgiving Travel Covered Live from Airport by WBT in Charlotte
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Coverage of the groundbreaking ceremony for the new downtown sports arena. The voice is that of NBA Charlotte Bobcats owner Bob Johnson. The full story is on the WBT web site.
Beta Tester: Salem Communication's 104.7 The Fish in Atlanta
- Christmas in July Remote in Smyrna, GA For more about the Christmas in July remote vist The Fish
Beta Tester: Clear Channel Modesto/Stockton, Calif.
Chief Engineer Greg Edwards provided these comparative audio samples from a remote on July 10, 2003:.
- Handheld cell phone audio without Matrix (in other words, unimproved audio)
- RPU audio
- Comrex GSM Module audio
Beta Tester: Radio Simba in Kampala, Uganda
Comments
Beta Tester: Silver Lake Audio
Steve Kirsch of Silver Lake Audio, which will be renting it out when it's available, took the Matrix & GSM Module out for a spin and reported this:
"The feed was rock solid. I'm very impressed - it sounds much better than I thought it would"
Beta Tester: KLOU
Daryl McQuinn, Director of Engineering for Clear Channel - St. Louis took his Matrix GSM beta to the T-Mobile store in the mall to try it before he invested in an account. T-Mobile loaned him a SIM card and Daryl popped it into the Matrix and dialed the Matrix rackmount back at the station. His engineer, JC Hall was waiting at the station to hear the call and all he could say was,"Wow!" JC brought KLOU's Program Director, Al Brock back to hear the audio and all he could say was,"Wow!" McQuinn states that if you put the Matrix on GSM in perspective and remember that you are using wireless services, it is especially incredible. The KLOU team decided that this "sounds much better than a bad (RPU) and not quite as good as a good (RPU) but way better than you should ever expect from a cell phone remote!"
Photos
The BBC covers the WTO Conference in Cancun, Mexico
POWER 96 (WPOW) in Miami broadcasts from the parking lot before the 1st game of the World Series 2003
Beta Tester:: KOSO-FM/KMRQ-FM
KOSO-FM/KMRQ-FM in California Enjoys the Matrix GSM Beta Unit.
Beta Tester:: Radio Simba in Kampala, Uganda
Radio Simba uses Matrix GSM to bring local radio to the people. For audio of this remote, click here.
Beta Tester:: Radio One, Dallas TX USA
Radio One in Dallas uses GSM for "morning street hits"
Beta Tester: Salem Communication's 104.7 The Fish in Atlanta
DJ is Taylor Scott from Salem Communication's 104.7 The Fish in Atlanta, GA and the photos are from the Christmas in July Remote in Smyrna, GA. Hear the audio.
Beta Tester: WHMS Lite Rock 97.5 in Champaign/Urbana, Illinois
Morning hosts Steve Kelly and Mike Haile did a two hour remote from a moving train from Champaign to Chicago - (for the record Comrex, being very conservative, does not recommend this application due to the difficulty of handing off between cell towers while moving at 79 mph... but we're very pleased that it worked so well!
The first photo was taken on the train and the one below it is at Union Station.
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