Qualcomm debuts new golden ear audio codecs on Xiaomi Redmi K20 (Latest version)

The meteoric rise of wireless earbuds has sound enthusiasts looking for the best wireless headphones. Fortunately, some manufacturers have the headphone jack back and are rewarded with Qualcomm's latest Aqstic audio codecs, the WCD9375 and WCD9370. It promises to further improve mobile audio. One of the first smartphones to support them is the Xiaomi Redmi K20.

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Qualcomm has the "Golden Ore, "Certified experts who otherwise register noticeable changes in sound. The title strongly supports the pseudoscience, but participants helped engineers create digital filters for the new codecs. do not see, about half the hardness of someone breathing, but the idea behind golden ears is that they are even more pressurized, so they can observe subtle changes in harmonics.

WCD9375 WCD9370 WCD9341 (old)
Dynamic Size (Playback) 123dB 120dB 130dB
Total harmonic distortion + noise (playback) -105dB -96dB -109dB
PCM (playback) 384kHz / 32bit 192 kHz / 24bit 384kHz / 32bit
Dynamic scope (recording) 109dB 104dB 109dB
Sampling (recording) 192 kHz / 24bit 192 kHz / 24bit 192 kHz / 24bit
Total harmonic distortion + noise (recording) -103dB -97dB -103dB
power consumption High performance: 28.52mW
Low power: 6mW
High performance: 16.1mW
Low power: 6mW
High performance: 34mW
Low power: 6mW

Before the WCD937x line, Golden Ore testing was reserved for excessive sound equipment. Roping some golden ears to help with the latest codecs can be Qualcomm's way of picking consumer interest, but the real specifications above are impressive. Allowed, there doesn't seem to be a big improvement between the new WCD9375 and the older WCD9341 codecs. In fact, the older version boasts a larger dynamic range and less overall harmonic distortion than the WCD937x family. However, power consumption sees a marginal improvement between the new and old codecs, which is good news for power users.

Specifications do not paint a complete picture, as sound is both objective and subjective. Perhaps the Golden Ear filter is symbolic of great mobile sound. Until more phones support the codecs, his legacy is hard to predict. We will make sure that you keep abreast of any updates and changes to the codecs.

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