QUOTE(shaun_kok @ Sep 22 2020, 12:46 AM)
The sampling rate is indeed in 48KHz (in stereo). However 16KHz audio spectrum per channel is almost what the codec and the bitrate (HE-AAC V2 32Kbps) could reach.
Ideally the audio must be in at least 96kbps (HE-AAC) or 128kbps (AAC) stereo for audio sounding similar to FM. If HE-AAC V2 is to be used only 48kbps can be used, which is a compromise between bandwidth and audio quality. Even at 48kbps it still sound poorer than FM. I cannot get the point why 32kbps HE-AAC V2 is used despite having huge spare capacity.
Questions like these, should ask MYTV's very top top top management, or high high level people there.Ideally the audio must be in at least 96kbps (HE-AAC) or 128kbps (AAC) stereo for audio sounding similar to FM. If HE-AAC V2 is to be used only 48kbps can be used, which is a compromise between bandwidth and audio quality. Even at 48kbps it still sound poorer than FM. I cannot get the point why 32kbps HE-AAC V2 is used despite having huge spare capacity.
Those normal CS agents don't know one. They're just following orders given by the people from top management/person in charge.
I mean, compared between 32kbps and 128kbps, that is equivalent to 0.03Mbps and 0.12Mbps difference.
This doesn't look like "saving bandwidth" to me. This look like they're being stingy. But stingy for what, I don't know la.
It seems to me like, those very top management people in MYTV, they just listen it from TV speaker, they hear it like "It sounds okay to me. Where got poor audio quality?
Not until when you ask an audiophile to come and use headphones to listen to the audio quality, then he/she will puke or vomit blood in front of MYTV top management people
If I would to describe how does the audio quality on HE-AAC v2 32kbps sounds like, I would describe, it is like:
- some room reverb effect, like simulating stereo effect
- it sounds like you cover the speaker with a plastic bag, and you can hear the plastic bag vibrating
- robot-like sound
- poor audio quality; severe audio compression artifacts
This post has been edited by joshhd: Sep 22 2020, 01:39 AM
Sep 22 2020, 01:02 AM

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