It’s worse on tv content, YouTube and Netflix isn’t quite as bad but is still seems as if the volume to signal ratio isn’t correct. On the LG soundbar around 10/40 is the comfortable listening level, it just doesn’t seem right to me. It’s as if the Samsung tv is boosting the Dolby signal. Thanks Dante, the reason it seems odd to me is that the soundbar is pushing into compression at about half volume. All you've done is change the device doing the decoding from the AV receiver to the source device. Streaming audio already encoded as Dolby Digital will not result in better audio if configuring the source device to decode it and output it as PCM. It is this PCM data that is processed by the AV receiver and converted to an analogue signal by its DAC. Even then, the PCM option will have to be encoded in a manner than actually means that the lossless uncompressed PCM data includes as much if not more data than the lossy compressed Dolby Digital audio.Īlso note that your AV receiver decodes incoming formatted audio and this results in PCM data. The only time that PCM may resilt in better quality is in instances where you get the option of either a discrete PCM soundtrack or a Dolby encoded soundtrack. Again, the resulting PCM would simply be the DTS or Dolby Digital audio decoded by the TV and mixed downso no improvwement over what you'd have gotten had you bitstreamed the original format. Choosing the PCM digital output option onboard a TV for example will in most instances result in 5.1 Dolby and DTS encoded formats being mixed down to just 2 channel PCM. In some instances, setting a device to output PCM as opposed to having bitstream the actual format the audio was encoded with can result in you getting audio that is less desirable. The audio you get resulting PCM data in such instances will be no better than the audio you'd have gotten had you bitstreamed the encoded audio the PCM data was derrived from. It can technically be better by way of it allowing for higher bitrates, but setting a source device to output PCM rather than allowing it to bitstream the formats the content is encoded with simply results in the source converting other formats to PCM data. ![]() It depends upon where the PCM digital data is derrived from and how it was encoded.
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