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Summary of Contents for WEISS DSP501
- Page 1 DSP501/DSP502 User Manual and White Papers Software Version: 2.5.1r2997 Date: February 15, 2022...
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Page 2: Table Of Contents
4.9 The Weiss Headphone Equalizer ........33... -
Page 3: The Dsp501/Dsp502 Overview
The DSP50x is the essence of our experiences. Figure 2: The DSP501 The DSP502 (fig. 1) uses a larger frame but else sports the same features as the DSP501 (fig. 2). Hence- forth the term DSP50x refers to both models. -
Page 4: The Three Interfaces
Weiss Enginering Ltd. DSP501/DSP502 2 The three interfaces We offer you three possibilities to control the DSP50x - so you can adjust the use and interaction of the DSP50x to your own special needs. In the following these three user interfaces are explained in more detail: •... -
Page 5: The Ir Remote Control
Weiss Enginering Ltd. DSP501/DSP502 2.2 The IR Remote Control Most of the keys on the IR remote control are self-explanatory. Here are some additional remarks: IR remote control buttons: power on/off select output 1 UPnP input select output 2 USB input... -
Page 6: Web Interface Overview
Weiss Enginering Ltd. DSP501/DSP502 Figure 4: Web interface overview User Manual and White Papers... -
Page 7: Active Output
Weiss Enginering Ltd. DSP501/DSP502 2.3.2 Active Output Select either output 1 or 2 with the Active Output switch (d). Furthermore the Output Termination switch (right hand on DSP plugin bar (e)) allows you to specify for each of these two outputs whether it is associated with a speaker or headphone setup. -
Page 8: The Vinyl Emulator
Weiss Enginering Ltd. DSP501/DSP502 2.3.4 The Vinyl Emulator By tapping or touching on the desired plugin at the light gray tab its special functionality and user parameters will be displayed below the gray tab. Figure 6: Vinyl plugin For marking which plugin is displayed the selected plugin will be highlighted in a darker gray. In this screen shot the Vinyl plugin is selected. -
Page 9: The Equalizer (Eq)
Weiss Enginering Ltd. DSP501/DSP502 2.3.5 The Equalizer (EQ) In the following screen shot the EQ plugin is selected. This plugin offers you 3 bands of equalization. All settings can be defined by you. A frequency response magnitude plot over all bands gives an informative overview of your EQ settings. -
Page 10: The Room Equalizer
Weiss Enginering Ltd. DSP501/DSP502 2.3.6 The Room Equalizer Figure 8: Room EQ plugin 5 bands of room equalization are available. Only peaking mode makes sense such that certain (low) fre- quencies can be attenuated with a sensible bell width set with the Q parameter. - Page 11 7. Write down the frequencies according to the table. 8. Now activate the Room EQ in your DSP501/DSP502 unit. Enable first the overall Room EQ and then enable one frequency band after the other as required (i.e. tap on the Peak pad to enable a band).
- Page 12 Weiss Enginering Ltd. DSP501/DSP502 Once you have properly set the Room EQ you will notice a much clearer reproduction, without boomed bass. Note, you may have gotten used to the acoustics of your playback setup and then when correcting it with the Room EQ it may sound strange at first.
- Page 13 Weiss Enginering Ltd. DSP501/DSP502 Time in seconds Frequency in Hz Time in seconds Frequency in Hz User Manual and White Papers...
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Page 14: Headphone Eq
Weiss Enginering Ltd. DSP501/DSP502 2.3.7 Headphone EQ Figure 9: Headphone EQ plugin Fig. 9 shows the headphone EQ plugin. Select your headphones Model using the drop-down menu. Based on your selection an associated photo of the current headphone model is displayed, click on it to show the manufacturer’s product website. -
Page 15: Dynamics Adaption
Weiss Enginering Ltd. DSP501/DSP502 Figure 10: Loudness EQ plugin 2.3.9 Dynamics Adaption In the following screen shot the Dynamics Adaption or shortly Dynamics plugin is selected and enabled. Figure 11: Dynamics Adaption plugin This plugin reduces the dynamic range of the played audio to a constant value. This is useful when listening to a desired play list with songs that have quite a different loudness - for example while having a dinner with friends. -
Page 16: The Crosstalk Cancellation (Xtc)
Weiss Enginering Ltd. DSP501/DSP502 2.3.10 The Crosstalk Cancellation (XTC) The XTC processing is a special kind of filtering which allows to reduce the crosstalk between the left speaker and the right ear and between the right speaker and the left ear. -
Page 17: Crossfeed Hp Plugin
Weiss Enginering Ltd. DSP501/DSP502 roomy sound scape, similar to loudspeaker reproduction in a room. The Crossfeed Headphone plugin allows adjusting the Amount level between 0 and 100 in order to achieve your preferential setting. A higher Amount results in stronger impact of the plugin’s effect on the played back audio. -
Page 18: Snapshot Storage
Weiss Enginering Ltd. DSP501/DSP502 2.3.12 Snapshot Storage Snapshots allow you to save and recall your favorite DSP plugin settings. Each plugin maintains its own set of snapshots. Moreover snapshots can be used to assemble Global Presets (section 2.3.13). Select your intended DSP plugin and adjust its parameters as desired. Whether a plugin is enabled or bypassed is also part of its setting and will be stored in the snapshot. -
Page 19: Global Presets
Weiss Enginering Ltd. DSP501/DSP502 Figure 15: Saving a new snapshot 2.3.13 Global Presets The 12 Global Presets are a useful facility to compose and quickly recall your favourite settings. Each Preset can be recalled from the Global Preset composer matrix or via the 12 DSP Preset keys on the IR remote control. -
Page 20: Firmware Update/ Download
Weiss Enginering Ltd. DSP501/DSP502 48 Presets, 12 each for output 1 and output 2 and their Output Termination (Speakers or Headphones). If the Output and/or Output Termination is changed the Preset bank is automatically changed as well. 2.3.14 Firmware Update/ Download Figure 17: Firmware update At the bottom of the web interface there is the Check for Update pad. -
Page 21: Technical Specification
Weiss Enginering Ltd. DSP501/DSP502 3 Technical Specification Figure 18: Engineering drawings of the DSP501, DSP502 and the IR remote control Power: • Mains voltage: 100...120 V or 200...240 V, automatic voltage selection • Fuse rating: 500 mA slow blow • Power consumption: 10 VA max •... - Page 22 Weiss Enginering Ltd. DSP501/DSP502 Available Colours: Silver, Black Digital Inputs • (1) XLR connector • (1) RCA connector • (1) TOSLINK connector (optical) • (1) USB type B connector • (1) RJ45 Ethernet connector All inputs accept professional or consumer standard, i.e. accept AES/EBU or S/PDIF signals.
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Page 23: Signal Processing Algorithms
DSP501/DSP502 4 Signal Processing Algorithms 4.1 The Weiss parametric Equalizer (EQ) The parametric equalizer is one of the most used tools in the professional audio production studio. It allows to shape the tonal character of a recording or of single instrument tracks with great precision. This is due to the fact that all the parameters of the EQ can be user set. -
Page 24: Low Pass And High Pass Filter Scheme
Weiss Enginering Ltd. DSP501/DSP502 As a last filter example the high cut filter (also called low pass filter) and low cut filter (also called high pass filter) is displayed. Figure 21: Low pass and high pass filter scheme To finalize this section you find an example chart that visualizes examples of frequencies for various instru- ment treatments: Figure 22: Instruments’... -
Page 25: The Weiss Room Equalizer
Illusonic company to license their room measuring software for the purpose of calculating the necessary room EQ settings. 4.3 The Weiss Crosstalk Cancellation (XTC) The so called binaural technology has a long history. Decades ago many live or radio drama recordings have been made using a dummy head microphone as displayed in fig. -
Page 26: The Weiss Vinyl Emulator
This helps the XTC impression a lot. Figure 24: XTC scheme With the DSP501/DSP502 units it is possible to enter the geometries of the setup. The XTC algorithm then is adjusted to the setup at hand. This plugin is not applicable on headphones. -
Page 27: Block Diagramm Of The Weiss Vinyl Emulator
• specific amplitude modulation effects The key to a good emulation is to achieve the ”right” amounts and characteristics and sequence of all those effects. Hence the word ”specific”. In the DSP501/DSP502 we implemented a processing chain for the vinyl emulation like this:... -
Page 28: Digital Level Control And Dithering
Weiss Enginering Ltd. DSP501/DSP502 4.5 Digital level control and Dithering Digital Level Control – done the right way. With sound examples. In high-end HiFi circles a level control done in the digital domain is often viewed as being inferior to one operating in the analog domain. -
Page 29: The Weiss Dynamics Adaption
Figure 26: Image processing: original (left), quantized without dithering (middle), quantized with dithering (right) 4.6 The Weiss Dynamics Adaption Nowadays we often have to face the issue that every piece of music can have it’s own loudness impression - or it could be preferable to have less dynamics in the playback of a desired play list. -
Page 30: Block Diagram Of The Weiss Loudness Normalization
DSP501/DSP502 Outline of the algorithm In the figure below the main functionality of the Weiss Loudness Normalization is outlined. The algorithm is displayed as a simplified block diagram. It consists of four main processing blocks. Figure 27: Block diagram of the Weiss Loudness Normalization The first block Loudness Measurement uses a special procedure to evaluate the loudness envelope of the signal within a very short time period. -
Page 31: The Weiss De-Esser
Be careful with very low Dynamic Level settings for some recordings the adaption can sound unnatural. 4.7 The Weiss De-Esser The sound of sharpness is a natural part of singing vocals - especially when singing S or T consonants. In fact it is a necessary characteristic of such consonants and helps the human ear to identify them. -
Page 32: Block Diagramm Of The Weiss De-Esser Plugin
Weiss De-Esser. Moreover you are able to choose between two different De-Esser modes and how much of the overall sharpness should be kept. So with the Weiss De-Esser you are able to create your individual desired sound regarding the sharpness of the playback. -
Page 33: Comparing Different Settings Of The De-Esser User Parameter: C) Amount 0 Db; B) Amount 9 Db
Figure 32: Comparing different settings of the De-Esser user parameter: c) Amount 0 dB; b) Amount 9 dB. As mentioned above you have the possibility to create your own desired sound of the Weiss De-Esser. The plugin provides two different De-Esser modes - Surgical and Smooth. Besides you can define the Amount of the chosen De-Essing effect. -
Page 34: The Weiss Crossfeed Headphone Algorithm
So we encourage you to first play with the Weiss De-Esser to get a feeling of how the different modes sound. For the parameter Amount a good starting point could be around -6dB. Futhermore in the beginning it is more easy for getting to know the sound of the De-Esser and finding your own desired setting, if only the De-Esser plugin is enabled. -
Page 35: The Weiss Headphone Equalizer
4.9 The Weiss Headphone Equalizer The Weiss Headphone EQ also pursues the aim of a spectral compensation like the Schwede Loudness EQ and the Room EQ. The introduced EQ plugin of this section attempts to balance the playback when using headphones. -
Page 36: The Schwede Loudness Eq
Setting 60dB could be compared with the loudness of a verbal communication, 70dB for example with a vac- uum cleaner. 80dB can be visualized with street traffic, 90dB with a heavy truck and 100dB with a sawmill. 4.11 The Weiss M/S Control to be announced... -
Page 37: Contact Information
Weiss Enginering Ltd. DSP501/DSP502 5 Contact Information Weiss Engineering Ltd. Daniel Weiss www.weiss.ch weiss@weiss.ch User Manual and White Papers... - Page 38 XTC scheme ..........24 Block diagramm of the Weiss Vinyl Emulator ......25 Image processing: original (left), quantized without dithering (middle), quantized with dither- ing (right) .
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