This query is about DM365 Internal Voice Codec and specifically about achieving “low jitter sensitivity” and “low out-of-band noise”.
We have observed that when we play audio stream using Gstreamer with low latency /block-size configuration, we hear some amount of jitter.
Though this can be eliminated by using high latency value (>350ms) for playback, delay needs to be kept as low as possible ( 50-100 ms) for other reasons.
According to "TMS320DM36x Digital Media System-on-Chip (DMSoC) Voice Codec data sheet (SPRUFI9B)".
In section 1.2.3, It says
"The DAC includes a single-bit DSM interpolation filter and switched capacitor reconstruction low-pass filter (SC LPF).
These can be used to obtain high PSRR, low jitter sensitivity, and low out-of-band noise"
There is no reference or details in the document further on the ways to achieve "low jitter sensitivity" and sensitivity “low out-of-band noise"
Can anyone indicate how the above can be achieved. Any pointer towards achieving the above would be greatly appreciated.
