Audio quality tests: Difference between revisions

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File:DA ALL AVG mdfourier-dac-48000-fbor vs HD Retrovision SNES Cwoj.png|HD Retrovision SNES Component Cable <br /> <sup>{{nowrap|''DOL-CPU(P)-10''}}</sup>
File:DA ALL AVG mdfourier-dac-48000-fbor vs HD Retrovision SNES Cwoj.png|HD Retrovision SNES Component Cable <br /> <sup>{{nowrap|''DOL-CPU(P)-10''}}</sup>
File:DA ALL AVG mdfourier-dac-48000-fwee vs Bitfunx GameCube Compsac.png|Bitfunx GameCube Component Cable <br /> <sup>{{nowrap|''Swapped L/R''}}</sup>
File:DA ALL AVG mdfourier-dac-48000-fwee vs Bitfunx GameCube Compsac.png|Bitfunx GameCube Component Cable <br /> <sup>{{nowrap|''Swapped L/R''}}</sup>
File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pomcn.png|GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter
File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pomcn.png|GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter <br /> <sup>{{nowrap|''DC Offset''}}</sup>
File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pobgl.png|GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter <br /> <sup>{{nowrap|''Sample Rate Hack''}}</sup>
File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pobgl.png|GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter <br /> <sup>{{nowrap|''DC Offset + Sample Rate Hack''}}</sup>
</gallery>
</gallery>


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| [[File:T SP B S1220A Bitfunx GameCube Component Cable 32kHz.png|200px]]
| [[File:T SP B S1220A Bitfunx GameCube Component Cable 32kHz.png|200px]]
|-
|-
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/S1220A/GCVideo-DVI%20v3.1%20+%20Portta%20HDMI%20to%20YPbPr%20Converter%2032kHz.flac GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter]</span>
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/S1220A/GCVideo-DVI%20v3.1%20+%20Portta%20HDMI%20to%20YPbPr%20Converter%2032kHz.flac GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter]</span><br /><sup>{{nowrap|''DC Offset''}}</sup>
| [[File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pomcn.png|200px]]
| [[File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pomcn.png|200px]]
| [[File:NF SP B GCVideo-DVI v3.1 + Poxmt -1Silence.png|200px]]
| [[File:NF SP B GCVideo-DVI v3.1 + Poxmt -1Silence.png|200px]]
| [[File:T SP B S1220A GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter 32kHz.png|200px]]
| [[File:T SP B S1220A GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter 32kHz.png|200px]]
|-
|-
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/S1220A/GCVideo-DVI%20v3.1%20+%20Portta%20HDMI%20to%20YPbPr%20Converter%2032kHz%20SRH.flac GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter]</span><br /><sup>{{nowrap|''Sample Rate Hack''}}</sup> <ref name="srh" />
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/S1220A/GCVideo-DVI%20v3.1%20+%20Portta%20HDMI%20to%20YPbPr%20Converter%2032kHz%20SRH.flac GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter]</span><br /><sup>{{nowrap|''DC Offset + Sample Rate Hack''}}</sup> <ref name="srh" />
| [[File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pobgl.png|200px]]
| [[File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pobgl.png|200px]]
| [[File:NF SP B GCVideo-DVI v3.1 + Poztr -1Silence.png|200px]]
| [[File:NF SP B GCVideo-DVI v3.1 + Poztr -1Silence.png|200px]]
Line 129: Line 129:
File:DA ALL AVG mdfourier-dac-48000-fdgh vs HD Retrovision SNES Cbet.png|HD Retrovision SNES Component Cable <br /> <sup>{{nowrap|''DOL-CPU(P)-10''}}</sup>
File:DA ALL AVG mdfourier-dac-48000-fdgh vs HD Retrovision SNES Cbet.png|HD Retrovision SNES Component Cable <br /> <sup>{{nowrap|''DOL-CPU(P)-10''}}</sup>
File:DA ALL AVG mdfourier-dac-48000-fqdv vs Bitfunx GameCube Compryx.png|Bitfunx GameCube Component Cable <br /> <sup>{{nowrap|''Swapped L/R''}}</sup>
File:DA ALL AVG mdfourier-dac-48000-fqdv vs Bitfunx GameCube Compryx.png|Bitfunx GameCube Component Cable <br /> <sup>{{nowrap|''Swapped L/R''}}</sup>
File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pokjn.png|GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter
File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pokjn.png|GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter <br /> <sup>{{nowrap|''DC Offset''}}</sup>
File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pocmy.png|GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter <br /> <sup>{{nowrap|''Sample Rate Hack''}}</sup>
File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pocmy.png|GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter <br /> <sup>{{nowrap|''DC Offset + Sample Rate Hack''}}</sup>
</gallery>
</gallery>


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| [[File:T SP B S1220A Bitfunx GameCube Component Cable 48kHz.png|200px]]
| [[File:T SP B S1220A Bitfunx GameCube Component Cable 48kHz.png|200px]]
|-
|-
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/S1220A/GCVideo-DVI%20v3.1%20+%20Portta%20HDMI%20to%20YPbPr%20Converter%2048kHz.flac GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter]</span>
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/S1220A/GCVideo-DVI%20v3.1%20+%20Portta%20HDMI%20to%20YPbPr%20Converter%2048kHz.flac GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter]</span><br /><sup>{{nowrap|''DC Offset''}}</sup>
| [[File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pokjn.png|200px]]
| [[File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pokjn.png|200px]]
| [[File:NF SP B GCVideo-DVI v3.1 + Ponls -1Silence.png|200px]]
| [[File:NF SP B GCVideo-DVI v3.1 + Ponls -1Silence.png|200px]]
| [[File:T SP B S1220A GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter 48kHz.png|200px]]
| [[File:T SP B S1220A GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter 48kHz.png|200px]]
|-
|-
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/S1220A/GCVideo-DVI%20v3.1%20+%20Portta%20HDMI%20to%20YPbPr%20Converter%2048kHz%20SRH.flac GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter]</span><br /><sup>{{nowrap|''Sample Rate Hack''}}</sup> <ref name="srh" />
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/S1220A/GCVideo-DVI%20v3.1%20+%20Portta%20HDMI%20to%20YPbPr%20Converter%2048kHz%20SRH.flac GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter]</span><br /><sup>{{nowrap|''DC Offset + Sample Rate Hack''}}</sup> <ref name="srh" />
| [[File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pocmy.png|200px]]
| [[File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pocmy.png|200px]]
| [[File:NF SP B GCVideo-DVI v3.1 + Povoh -1Silence.png|200px]]
| [[File:NF SP B GCVideo-DVI v3.1 + Povoh -1Silence.png|200px]]

Revision as of 21:00, 25 December 2021

32kHz sample rate

Using MDFourier 1.07d (15-12-2021) with this reference file.

The 32kHz sample rate is most commonly used by licensed software. It is upsampled to 48kHz in hardware prior to final output.
The nominal sample rate is 54MHz÷1124, rather than 54MHz÷1125. This is reflected in the frame duration of the standard equipment test.

A 15kHz white screen was displayed to induce audible noise.

ASUS PRIME X570-PRO

Using ALC1220 (S1220A).

This sound card serve as our analog reference.

Source Difference Noise floor Time spectrogram
Nintendo Stereo AV Cable
DOL-CPU-11 		File:DA ALL AVG mdfourier-dac-48000-fktq vs Nintendo Stereo AV Cahhc.png File:NF SP B Nintendo Stereo AV Cabhz -1Silence.png
Nintendo Stereo AV Cable
DOL-CPU(P)-10 		File:DA ALL AVG mdfourier-dac-48000-fqyo vs Nintendo Stereo AV Cakmq.png File:NF SP B Nintendo Stereo AV Caxmv -1Silence.png
Generic S-Video Cable
DOL-CPU-11 		File:DA ALL AVG mdfourier-dac-48000-ffqj vs Generic S-Video Cablecwg.png File:NF SP B Generic S-Video Cableytn -1Silence.png
HD Retrovision SNES Component Cable
DOL-CPU(P)-10 		File:DA ALL AVG mdfourier-dac-48000-fbor vs HD Retrovision SNES Cwoj.png File:NF SP B HD Retrovision SNES Cpxl -1Silence.png
Bitfunx GameCube Component Cable
Swapped L/R 		File:DA ALL AVG mdfourier-dac-48000-fwee vs Bitfunx GameCube Compsac.png File:NF SP B Bitfunx GameCube Compvqp -1Silence.png
GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter
DC Offset 		File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pomcn.png File:NF SP B GCVideo-DVI v3.1 + Poxmt -1Silence.png
GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter
DC Offset + Sample Rate Hack [1] 		File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pobgl.png File:NF SP B GCVideo-DVI v3.1 + Poztr -1Silence.png
  1. ↑ https://github.com/ikorb/gcvideo/blob/main/Firmware/README.md#advanced-settings

Blackmagic Intensity Shuttle

Using CS42526 and ADV7604.

Hauppauge WinTV-HVR-1850

Using CX23888.

Its audio input suffer from internal interference.

Source Difference Noise floor Time spectrogram
Nintendo RF Modulator
DOL-CPU-11 		File:DA ALL AVG mdfourier-dac-48000 vs Nintendo RF Modulatorqxl.png File:NF SP B Nintendo RF Modulatorvhh -1Silence.png
Nintendo Stereo AV Cable
DOL-CPU-11 		File:DA ALL AVG mdfourier-dac-48000 vs Nintendo Stereo AV Cafwu.png File:NF SP B Nintendo Stereo AV Carkb -1Silence.png
Generic S-Video Cable
DOL-CPU-11 		File:DA ALL AVG mdfourier-dac-48000 vs Generic S-Video Cableczp.png File:NF SP B Generic S-Video Cablefmb -1Silence.png

48kHz sample rate

Using MDFourier 1.07d (15-12-2021) with this reference file.

The 48kHz sample rate is most commonly used by homebrew software and streaming audio in licensed software.
The nominal sample rate is 54MHz÷1124, rather than 54MHz÷1125. This is reflected in the frame duration of the standard equipment test.

A 15kHz white screen was displayed to induce audible noise.

ASUS PRIME X570-PRO

Using ALC1220 (S1220A).

This sound card serve as our analog reference.

Source Difference Noise floor Time spectrogram
Nintendo Stereo AV Cable
DOL-CPU-11 		File:DA ALL AVG mdfourier-dac-48000-fnvw vs Nintendo Stereo AV Cagdg.png File:NF SP B Nintendo Stereo AV Capxa -1Silence.png
Nintendo Stereo AV Cable
DOL-CPU(P)-10 		File:DA ALL AVG mdfourier-dac-48000-flcw vs Nintendo Stereo AV Cacom.png File:NF SP B Nintendo Stereo AV Caeoh -1Silence.png
Generic S-Video Cable
DOL-CPU-11 		File:DA ALL AVG mdfourier-dac-48000-focw vs Generic S-Video Cableayj.png File:NF SP B Generic S-Video Cablehey -1Silence.png
HD Retrovision SNES Component Cable
DOL-CPU(P)-10 		File:DA ALL AVG mdfourier-dac-48000-fdgh vs HD Retrovision SNES Cbet.png File:NF SP B HD Retrovision SNES Claa -1Silence.png
Bitfunx GameCube Component Cable
Swapped L/R 		File:DA ALL AVG mdfourier-dac-48000-fqdv vs Bitfunx GameCube Compryx.png File:NF SP B Bitfunx GameCube Compgxk -1Silence.png
GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter
DC Offset 		File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pokjn.png File:NF SP B GCVideo-DVI v3.1 + Ponls -1Silence.png
GCVideo-DVI v3.1 + Portta HDMI to YPbPr Converter
DC Offset + Sample Rate Hack [1] 		File:DA ALL AVG mdfourier-dac-48000 vs GCVideo-DVI v3.1 + Pocmy.png File:NF SP B GCVideo-DVI v3.1 + Povoh -1Silence.png
  1. ↑ https://github.com/ikorb/gcvideo/blob/main/Firmware/README.md#advanced-settings

Blackmagic Intensity Shuttle

Using CS42526 and ADV7604.

Hauppauge WinTV-HVR-1850

Using CX23888.

Its audio input suffer from internal interference.

Source Difference Noise floor Time spectrogram
Nintendo RF Modulator
DOL-CPU-11 		File:DA ALL AVG mdfourier-dac-48000 vs Nintendo RF Modulatorrzn.png File:NF SP B Nintendo RF Modulatorvse -1Silence.png
Nintendo Stereo AV Cable
DOL-CPU-11 		File:DA ALL AVG mdfourier-dac-48000 vs Nintendo Stereo AV Caifm.png File:NF SP B Nintendo Stereo AV Cairq -1Silence.png
Generic S-Video Cable
DOL-CPU-11 		File:DA ALL AVG mdfourier-dac-48000 vs Generic S-Video Cablebib.png File:NF SP B Generic S-Video Cablelgk -1Silence.png
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