justicet 发表于 2023-3-11 22:48
据说有，但是还关注那玩意干啥！
甚至，仅仅支持DSD128的也不用看了。都什么年代了，还不支持512，起码也 ...
DCS：？
本帖最后由 justicet 于 2023-3-12 13:02 编辑
DSD和PCM各有半壁江山。兼容的方案无非就是把DSD转成PCM解码输出，或者把pcm转成DSD解码输出（PB家），或者干脆在一个机壳里面装两个解码（T+A家），兼容又做得好的寥寥无几，成本高难度还大。可现实是，占据市场顶端的往往是这些兼容的厂家，只做PCM的厂家其产品力和名声都远远不如。
日本蜗居男天天刷水贴问一些垃圾器材，到现在还不知道高端解码器都是SDM 调制器，解PCM 和 DSD 都是打个响指的事情，还非要人家去除DSD 格式解码。
就好比你家马桶既可以蓄水也可以抽水泄粪，但你非要和人家说能不能把抽水功能可以去掉，日本蜗居狗可以用手把屎捞起来再扔掉。
傻逼就是傻逼。
justicet 发表于 2023-3-12 12:33
DSD和PCM各有半壁江山。兼容的方案无非就是把DSD转成PCM解码输出，或者把pcm转成DSD解码输出（PB家），或者 ...
在录音行业里PCM的地位无可撼动的，所谓半壁江山只是说发烧友这端罢了。绝大多数录音制品还是PCM方式录的。
vanbeethoven 发表于 2023-3-12 07:53
平衡、DSD，今天耳烧界的两大忽悠
请教一下，为什么说平衡也是忽悠呢
fkeufss 发表于 2023-3-13 13:32
请教一下，为什么说平衡也是忽悠呢
我不太懂技术，转帖一篇Benchmark设计师John Siau的文章吧。我没有能力从技术上判断对错，但我自己的聆听经验确实是平衡更容易难听。
This Myth Goes Something Like This:
"Balanced headphone amplifiers are better."
"If balanced line-level connections work well, balanced headphone outputs should also work well."
We disagree!
Benchmark does not offer voltage-balanced headphone outputs on any of its products. The reason for this is that a voltage-balanced interface serves no useful purpose when driving headphones. The truth is that a conventional single-ended headphone drive is technically superior to a balanced drive. This paper explains why single-ended headphone amplifiers are inherently more transparent than balanced headphone amplifiers.
We do offer a 4-pin XLR connection on the HPA4 headphone amplifier, because this 4-pin connection offers lower contact resistance than a traditional 1/4" TRS connection. For performance reasons, this connector is not driven with a voltage-balanced signal. Instead, it provides isolated left and right ground returns that are individually connected to the ground reference points in the left and right amplifiers. This high-quality XLR connector provides very low contact resistance and this eliminates the distortion that can be produced by the much higher contact resistance of a TRS connector. The THX-888 headphone amplifier in the HPA4 is virtually distortion free and this makes it easy to measure the distortion caused by poor TRS connections. For convenience, we also provide a TRS jack. If the TRS jack must be used, we recommend using a gold-plated plug that shows no signs of plating wear. We find that the gold plating on TRS plugs wears quickly when headphones are plugged and unplugged.
Please understand that Benchmark strongly encourages the use of balanced line-level interfaces between audio products. All of our products are equipped with fully-balanced XLR analog inputs and outputs. In these box-to-box line-level connections, a balanced interface can provide substantial performance improvements. Balanced line-level interfaces reject hum and noise while providing a higher voltage level. The higher signal levels can improve the SNR (signal to noise ratio) of the audio system.
If balanced connections work so well between audio boxes, it seems reasonable to expect improvements when driving headphones with a voltage-balanced feed. This expectation provides a marketing opportunity for any audio manufacturer that is willing to exploit customer expectations. Many are willing, and this is how audio myths are born and nurtured. Benchmark does not promote these myths nor does it embrace trends that do not contribute to transparent sound.
This expectation that balanced headphone amplifiers should be superior to single-ended amplifiers, ignores some of the most basic laws of electricity. The current into and out of a two-wire network is always equal and opposite. This means that the two-wire transducers used in headphones always see fully-balanced current. It also means that the headphone drivers are completely ignorant of the difference between single-ended and balanced-drive voltages.
Let me spell this out again: Headphone transducers are balanced devices. They have two wires. The electrons that flow into one wire must flow out of the other. The current is always balanced. The headphone transducers cannot detect the difference between a single-ended drive and a voltage-balanced drive. The system is balanced with either type of voltage drive.
But, this does not mean that balanced and unbalanced headphone amplifiers will sound the same! In many cases, voltage-balanced headphone amplifiers will produce more noise and more distortion than single-ended amplifiers of an identical design. The reason for this is that two separate output amplifiers are required in a voltage-balanced amplifier, and each must drive one half of the transducer's load impedance. The output noise will double because there are two amplifiers instead of one. The damping factor will degrade by a factor of 2 because both amplifiers contribute to the source impedance of the balanced amplifier (output impedance is doubled). Distortion will usually increase because each amplifier is required to drive half of the impedance that would be seen by an unbalanced amplifier. Power consumption will increase by a factor of 4 for a given output level (assuming the power supply voltage rails remain unchanged).
In fairness to balanced designs, I should point out that a balanced output can deliver 4 times the power for a given power supply voltage. However, this would only be necessary if the product was battery operated. The balanced output would offer no real advantage in an AC powered amplifier.
Please note that distortion is not always a bad thing (see Two Distinct Types of Audio Products). Many audio products are designed to add some harmonic distortion in an effort to add warmth to the audio reproduction. This is an artistic choice that will change the way a recording sounds. If the goal is to add distortion, a balanced headphone amplifier may produce more harmonics than a single-ended design.
In contrast, Benchmark products are designed for maximum transparency. Our goal is to build products that faithfully capture and reproduce music. This means that our products are not designed to alter the sound of a recording. This transparency is critical in a studio monitoring chain. We feel that this also makes our products well-suited for home playback when a listener wants to hear the music the way it was heard in the studio. A voltage-balanced headphone amplifier would run contrary to our goals.
fkeufss 发表于 2023-3-13 13:32
请教一下，为什么说平衡也是忽悠呢
全套平衡的器材很少
我的系统平衡和单端随意切换，我更喜欢平衡。
所谓的“平衡”在HI-FI领域其实有三种：平衡传输、平衡放大、（耳机的）平衡驱动。
平衡传输具有优越性，特别是长距离传输时，这点没有争议。
平衡放大，既有积极拥护者，也有不支持者。
耳机的所谓平衡驱动。BENCHMARK文章里说了，耳机是个天生平衡的东西，每个声道单元接±两根线，电流从一边入一边出，本身就是平衡的，无论前面的放大线路是什么形式。BENCHMARK认为所谓平衡驱动（对耳机）没有什么优越性。
vanbeethoven 发表于 2023-3-13 14:03
我不太懂技术，转帖一篇Benchmark设计师John Siau的文章吧。我没有能力从技术上判断对错，但我自己的聆听 ...
感谢分享，我学习一下！这个原贴在哪来着
fkeufss 发表于 2023-3-13 18:35
感谢分享，我学习一下！这个原贴在哪来着
https://benchmarkmedia.com/blogs/application_notes/audio-myth-balanced-headphone-outputs-are-better
brainless 发表于 2023-3-12 13:35
有一体机没。
感觉一体机好像都是支持dsd很到位的了
国内品牌的一体机都支持得很到位，参数上不会拉下
