Audio quality tests: Difference between revisions

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<gallery caption="Difference" widths="200px" heights="100px" mode="slideshow">
<gallery caption="Difference" widths="200px" heights="100px" mode="slideshow">
File:DA ALL AVG mdfourier-dac-48000 vs Nintendo RF Modulatorqxl.png|Nintendo RF Modulator <br /> <sup>{{nowrap|''DOL-CPU-11''}}</sup>
File:DA ALL AVG mdfourier-dac-48000-fgud vs Nintendo RF Modulatorxim.png|Nintendo RF Modulator <br /> <sup>{{nowrap|''DOL-CPU-11''}}</sup>
File:DA ALL AVG mdfourier-dac-48000 vs Nintendo Stereo AV Cafwu.png|Nintendo Stereo AV Cable <br /> <sup>{{nowrap|''DOL-CPU-11''}}</sup>
File:DA ALL AVG mdfourier-dac-48000-fkik vs Nintendo Stereo AV Cankb.png|Nintendo Stereo AV Cable <br /> <sup>{{nowrap|''DOL-CPU-11''}}</sup>
File:DA ALL AVG mdfourier-dac-48000 vs Generic S-Video Cableczp.png|Generic S-Video Cable <br /> <sup>{{nowrap|''DOL-CPU-11''}}</sup>
File:DA ALL AVG mdfourier-dac-48000-fydg vs Generic S-Video Cableooa.png|Generic S-Video Cable <br /> <sup>{{nowrap|''DOL-CPU-11''}}</sup>
</gallery>
</gallery>


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|-
|-
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/CX23888/Nintendo%20RF%20Modulator%2032kHz.flac Nintendo RF Modulator]</span><br /><sup>{{nowrap|''DOL-CPU-11''}}</sup>
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/CX23888/Nintendo%20RF%20Modulator%2032kHz.flac Nintendo RF Modulator]</span><br /><sup>{{nowrap|''DOL-CPU-11''}}</sup>
| [[File:DA ALL AVG mdfourier-dac-48000 vs Nintendo RF Modulatorqxl.png|200px]]
| [[File:DA ALL AVG mdfourier-dac-48000-fgud vs Nintendo RF Modulatorxim.png|200px]]
| [[File:NF SP B Nintendo RF Modulatorvhh -1Silence.png|200px]]
| [[File:NF SP B Nintendo RF Modulatorpxm -1Silence.png|200px]]
| [[File:T SP B CX23888 Nintendo RF Modulator 32kHz.png|200px]]
| [[File:T SP B CX23888 Nintendo RF Modulator 32kHz.png|200px]]
|-
|-
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/CX23888/Nintendo%20Stereo%20AV%20Cable%2032kHz.flac Nintendo Stereo AV Cable]</span><br /><sup>{{nowrap|''DOL-CPU-11''}}</sup>
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/CX23888/Nintendo%20Stereo%20AV%20Cable%2032kHz.flac Nintendo Stereo AV Cable]</span><br /><sup>{{nowrap|''DOL-CPU-11''}}</sup>
| [[File:DA ALL AVG mdfourier-dac-48000 vs Nintendo Stereo AV Cafwu.png|200px]]
| [[File:DA ALL AVG mdfourier-dac-48000-fkik vs Nintendo Stereo AV Cankb.png|200px]]
| [[File:NF SP B Nintendo Stereo AV Carkb -1Silence.png|200px]]
| [[File:NF SP B Nintendo Stereo AV Cayxe -1Silence.png|200px]]
| [[File:T SP B CX23888 Nintendo Stereo AV Cable 32kHz.png|200px]]
| [[File:T SP B CX23888 Nintendo Stereo AV Cable 32kHz.png|200px]]
|-
|-
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/CX23888/Generic%20S-Video%20Cable%2032kHz.flac Generic S-Video Cable]</span><br /><sup>{{nowrap|''DOL-CPU-11''}}</sup>
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/CX23888/Generic%20S-Video%20Cable%2032kHz.flac Generic S-Video Cable]</span><br /><sup>{{nowrap|''DOL-CPU-11''}}</sup>
| [[File:DA ALL AVG mdfourier-dac-48000 vs Generic S-Video Cableczp.png|200px]]
| [[File:DA ALL AVG mdfourier-dac-48000-fydg vs Generic S-Video Cableooa.png|200px]]
| [[File:NF SP B Generic S-Video Cablefmb -1Silence.png|200px]]
| [[File:NF SP B Generic S-Video Cableiuw -1Silence.png|200px]]
| [[File:T SP B CX23888 Generic S-Video Cable 32kHz.png|200px]]
| [[File:T SP B CX23888 Generic S-Video Cable 32kHz.png|200px]]
|}
|}
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<gallery caption="Difference" widths="200px" heights="100px" mode="slideshow">
<gallery caption="Difference" widths="200px" heights="100px" mode="slideshow">
File:DA ALL AVG mdfourier-dac-48000 vs Nintendo RF Modulatorrzn.png|Nintendo RF Modulator <br /> <sup>{{nowrap|''DOL-CPU-11''}}</sup>
File:DA ALL AVG mdfourier-dac-48000-fxet vs Nintendo RF Modulatorvpm.png|Nintendo RF Modulator <br /> <sup>{{nowrap|''DOL-CPU-11''}}</sup>
File:DA ALL AVG mdfourier-dac-48000 vs Nintendo Stereo AV Caifm.png|Nintendo Stereo AV Cable <br /> <sup>{{nowrap|''DOL-CPU-11''}}</sup>
File:DA ALL AVG mdfourier-dac-48000-fuhn vs Nintendo Stereo AV Cafja.png|Nintendo Stereo AV Cable <br /> <sup>{{nowrap|''DOL-CPU-11''}}</sup>
File:DA ALL AVG mdfourier-dac-48000 vs Generic S-Video Cablebib.png|Generic S-Video Cable <br /> <sup>{{nowrap|''DOL-CPU-11''}}</sup>
File:DA ALL AVG mdfourier-dac-48000-fywk vs Generic S-Video Cableirx.png|Generic S-Video Cable <br /> <sup>{{nowrap|''DOL-CPU-11''}}</sup>
</gallery>
</gallery>


Line 202: Line 202:
|-
|-
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/CX23888/Nintendo%20RF%20Modulator%2048kHz.flac Nintendo RF Modulator]</span><br /><sup>{{nowrap|''DOL-CPU-11''}}</sup>
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/CX23888/Nintendo%20RF%20Modulator%2048kHz.flac Nintendo RF Modulator]</span><br /><sup>{{nowrap|''DOL-CPU-11''}}</sup>
| [[File:DA ALL AVG mdfourier-dac-48000 vs Nintendo RF Modulatorrzn.png|200px]]
| [[File:DA ALL AVG mdfourier-dac-48000-fxet vs Nintendo RF Modulatorvpm.png|200px]]
| [[File:NF SP B Nintendo RF Modulatorvse -1Silence.png|200px]]
| [[File:NF SP B Nintendo RF Modulatorfkx -1Silence.png|200px]]
| [[File:T SP B CX23888 Nintendo RF Modulator 48kHz.png|200px]]
| [[File:T SP B CX23888 Nintendo RF Modulator 48kHz.png|200px]]
|-
|-
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/CX23888/Nintendo%20Stereo%20AV%20Cable%2048kHz.flac Nintendo Stereo AV Cable]</span><br /><sup>{{nowrap|''DOL-CPU-11''}}</sup>
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/CX23888/Nintendo%20Stereo%20AV%20Cable%2048kHz.flac Nintendo Stereo AV Cable]</span><br /><sup>{{nowrap|''DOL-CPU-11''}}</sup>
| [[File:DA ALL AVG mdfourier-dac-48000 vs Nintendo Stereo AV Caifm.png|200px]]
| [[File:DA ALL AVG mdfourier-dac-48000-fuhn vs Nintendo Stereo AV Cafja.png|200px]]
| [[File:NF SP B Nintendo Stereo AV Cairq -1Silence.png|200px]]
| [[File:NF SP B Nintendo Stereo AV Canze -1Silence.png|200px]]
| [[File:T SP B CX23888 Nintendo Stereo AV Cable 48kHz.png|200px]]
| [[File:T SP B CX23888 Nintendo Stereo AV Cable 48kHz.png|200px]]
|-
|-
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/CX23888/Generic%20S-Video%20Cable%2048kHz.flac Generic S-Video Cable]</span><br /><sup>{{nowrap|''DOL-CPU-11''}}</sup>
| <span class="plainlinks">[https://files.extremscorner.org/gamecube/audio/comparisons/CX23888/Generic%20S-Video%20Cable%2048kHz.flac Generic S-Video Cable]</span><br /><sup>{{nowrap|''DOL-CPU-11''}}</sup>
| [[File:DA ALL AVG mdfourier-dac-48000 vs Generic S-Video Cablebib.png|200px]]
| [[File:DA ALL AVG mdfourier-dac-48000-fywk vs Generic S-Video Cableirx.png|200px]]
| [[File:NF SP B Generic S-Video Cablelgk -1Silence.png|200px]]
| [[File:NF SP B Generic S-Video Cablejca -1Silence.png|200px]]
| [[File:T SP B CX23888 Generic S-Video Cable 48kHz.png|200px]]
| [[File:T SP B CX23888 Generic S-Video Cable 48kHz.png|200px]]
|}
|}

Revision as of 22:11, 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-fgud vs Nintendo RF Modulatorxim.png File:NF SP B Nintendo RF Modulatorpxm -1Silence.png
Nintendo Stereo AV Cable
DOL-CPU-11 		File:DA ALL AVG mdfourier-dac-48000-fkik vs Nintendo Stereo AV Cankb.png File:NF SP B Nintendo Stereo AV Cayxe -1Silence.png
Generic S-Video Cable
DOL-CPU-11 		File:DA ALL AVG mdfourier-dac-48000-fydg vs Generic S-Video Cableooa.png File:NF SP B Generic S-Video Cableiuw -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-fxet vs Nintendo RF Modulatorvpm.png File:NF SP B Nintendo RF Modulatorfkx -1Silence.png
Nintendo Stereo AV Cable
DOL-CPU-11 		File:DA ALL AVG mdfourier-dac-48000-fuhn vs Nintendo Stereo AV Cafja.png File:NF SP B Nintendo Stereo AV Canze -1Silence.png
Generic S-Video Cable
DOL-CPU-11 		File:DA ALL AVG mdfourier-dac-48000-fywk vs Generic S-Video Cableirx.png File:NF SP B Generic S-Video Cablejca -1Silence.png
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