quality is inferior to that advertised in the Lyra Google AI blog

I ran the samples published in the [Lyra blog](https://ai.googleblog.com/2021/02/lyra-new-very-low-bitrate-codec-for.html) through the encoder_main and decoder_main binaries compiled from the open-sourced Lyra code (this repo). I compiled the floating point version of the code. I tried both the v0.0.1 and the latest commit, result is same. The decoded outputs (produced by running the original through encoder_main and then decoding the bit stream decoder_main) are attached:
[lyra_reproduce_blog.zip](https://github.com/google/lyra/files/6321333/lyra_reproduce_blog.zip)

It is clear that the quality of the samples decoded from this code is inferior to the quality of the samples advertised in the Lyra blog.

Why is this? Weren't the samples in the blog produced by the same code?

Thank you in advance for clarifying.