ZumSpot - RX audio - raspy sounding
Posted: Mon Apr 01, 2019 4:22 pm
Hi All!
I'm really enjoying the Pi-Star application and greatly appreciate the efforts by the Pi-Star team to put this all together - hats off to you!
I've recently purchased the ZUMSpot and configured it for operation on the Brandmeister network where it connects to the BM Server in Texas (I'm located in Chicago IL). When listening to the traffic on TAC310, for example, the audio sounds a bit raspy almost like listening to someone talk through a spinning desk fan (but not quite as extreme). The RX voice is totally intelligible but I've heard examples on youtube DMR demo clips where the "raspy" audio issue is not present or at least not detectable by my hearing.
Stations with "0" for packet loss and BER will still sound raspy to me and I've attempted to tweak the TXOffset on the Pi-Star but to no useful effect.
I'm wondering if there is any way to improve the audio quality or at least determine the root cause. Any advice would be greatly appreciated!
I currently use a Connect Systems CS-700 to interface with the ZUMSpot. Could this be an issue with the CS-700 (I know this radio isn't exactly a high quality rig)?
Thanks and 73
Chris.
I'm really enjoying the Pi-Star application and greatly appreciate the efforts by the Pi-Star team to put this all together - hats off to you!
I've recently purchased the ZUMSpot and configured it for operation on the Brandmeister network where it connects to the BM Server in Texas (I'm located in Chicago IL). When listening to the traffic on TAC310, for example, the audio sounds a bit raspy almost like listening to someone talk through a spinning desk fan (but not quite as extreme). The RX voice is totally intelligible but I've heard examples on youtube DMR demo clips where the "raspy" audio issue is not present or at least not detectable by my hearing.
Stations with "0" for packet loss and BER will still sound raspy to me and I've attempted to tweak the TXOffset on the Pi-Star but to no useful effect.
I'm wondering if there is any way to improve the audio quality or at least determine the root cause. Any advice would be greatly appreciated!
I currently use a Connect Systems CS-700 to interface with the ZUMSpot. Could this be an issue with the CS-700 (I know this radio isn't exactly a high quality rig)?
Thanks and 73
Chris.